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    • 专利摘要:
    CONTROLLED DISCHARGE OSTOMY DEVICE AND PROTECTION FOR THE SAME.A controlled discharge ostomy device assembly comprises (i) a stoma seal that is self-propelled with a dynamic damping characteristic that resists changes in seal volume, (ii) a displacement snap-fit coupling element from one unlocked position to a locked position as part of a pressure fitting process, and (iii) a frangible part for single use. The assembly additionally includes a protective shield removably attached to the device forming a combined arrangement with it. The protective shield comprises (i) a maneuverable sealer to move the stoma seal to a non-operative position ready for fitting, (ii) a substantially rigid coupling element protection part to protect the condition of the coupling element, and (iii) a fastening part to secure the single use frangible part.
    公开号:BR112012005395A2
    申请号:R112012005395-7
    申请日:2010-09-09
    公开日:2020-10-13
    发明作者:Tinh Nguyen-DeMary；John Cline；John Blum；Gary Stacey；Philip Davies；Trevor Beckett
    申请人:Convatec Technologies Inc.；
    IPC主号:
    专利说明:

    "CONTROLLED DISCHARGE OSTOMY DlSPOSlTlVO AND PROTECTION FOR THE SAME"
    FIELD OF THE INVENTION The present invention relates to a controlled discharge ostomy device and an auxiliary device for the same. The auxiliary device, for example, can be a protection or packaging for the controlled discharge ostomy device.
    BACKGROUND OF THE INVENTION US patent 6,723,079 and EP-A-1348412 describe controlled discharge ostomy devices including an inflatable membrane seal to create a temporary conformal closure of the stoma. The inflatable seal comprises a sealed chamber having an inflation port closed by means of a check valve. After fitting the device to a stoma, the seal is inflated by attaching an external inflation source, for example, a pump or syringe, to the check valve. Once the inflation fluid has been injected into the chamber, the check valve seals the chamber, preventing loss of inflation fluid and preserving the inflation state. A system like this can be comfortable to fit and provide good "" sealing performance, but may require careful design. A design issue is the provision of a source of external inflation as a separate item carried by the user in order to be able to inflate the seal after fitting the device, or to complete the sale with additional inflation fluid in the case of fluid loss or leakage through the stoma. Another design issue is the importance of maintaining the contact pressure between the stoma and the membrane seal in a narrow range, that is, as low as possible (to ensure good blood perfusion in the stoma tissue) while maintaining a seal. effective temporary protection against excreta discharge. However, it is difficult to maintain contact pressure in a narrow range like this because, for a given amount of inflation fluid in the chamber, any change in chamber volume caused by stoma movement directly affects the inflation pressure. During the time of use of an ostomy device, the stoma may dynamically move inward towards the body and / or outward away from the peristomal skin surface for a total distance that may exceed 1 cm. This movement may be due to peristaltic movement of the intestine, imminent release of excrement or gas through the stoma, or muscle contractions of the abdomen. Under conditions when the stoma moves inward towards the body (that is, increasing the volume of the inflation chamber), the contact pressure between the membrane seal and the stoma may drop, increasing the risk of leakage of excrement if the contact pressure becomes too low. In contrast, under conditions when the stoma or its contents pushes out against the membrane seal (reducing the volume of the inflation chamber), contact pressure between the seal and the stoma can potentially increase QL
    2/33 tar.
    During such periods, increased contact pressure can result in an infusion of
    $ undesirable reduced blood in the stoma.
    The duration of such conditions can be highly unpredictable, some conditions lasting only seconds, other minutes and sometimes "several hours. 5 International patent application publication WO 2009/029610 describes an alternative seal that is both self-compensating and self-propelling in the stoma direction.
    The seal comprises a fluid chamber including a fluid impermeable membrane that forms a movable wall of the fluid chamber, one or more fluid flow regulating ports communicating with the chamber; and elastic foam disposed within the fluid chamber.
    With a seal like this, the contact pressure between the view and the stoma has both a static and a dynamic component.
    The static component comes from the foam, which is compressed by the sealing support on the stoma, and applies an elastic return force on the stoma.
    The foam is configured in such a way that the static component of the contact pressure is always within the narrow range of acceptability explained above.
    The dynamic component of contact pressure results from the port regulating fluid flow to the chamber and from there, as the chamber volume adapts to follow any stoma movement.
    The door defines a dynamic damping characteristic of adaptation of the seal, in addition to the foam effect.
    A self-propelled project like this has the potential advantage that a source of external inflation is not necessary, thus preventing the user from having to carry a separate device like this.
    The pressure inside the seal is self-regulating, and the seal can adapt to different voiumes automatically.
    While the foam allows a wide range of stoma shapes and sizes to be accommodated, the dynamic damping feature resists the compression of the seal that the stoma must initiate when it pushes out.
    The fluid trapped in the chamber by the damping characteristic generates a temporary dynamic increase in the contact pressure exerted by the seal to withstand a challenge like this coming from the stoma.
    A transient challenge can be caused by excrement and flatus in the stoma, and the temporary increase in sealing pressure improves sealing against escaping excrement, without the increased sealing pressure being exerted for a long time to obstruct regular blood perfusion. stoma.
    The damping characteristic only temporarily captures inflation fluid, thus allowing the seal to adapt in volume if the movement out of the stoma is more than transitory.
    US-A-2007/088300 describes a single-use ostomy device including an ostomy coupling to couple so that it can be released first and second into a stomach orifice.
    The two parts can be separable body-side and not body-side parts, or the two parts can be parts of a unitary osmotic device such as a controlled evacuation device. The coupling includes a mechanical fastener configured in such a way that the coupling is made substantially unreachable again after the fastener is released. 5 US-A-2007/129695 describes an ostomy coupling including a side-side coupling element body, a device side coupling element including several fastening tabs and a fastening element. The flaps flex independently of each other to provide several independent locking fasteners. The fastening element is moved between a position of fixation in which the fixation element locks the flaps when resisting the flexing movement, and a non-fixing or disassembled position in which the flaps are free to flex. The ostomy coupling is used with an ostomy bag or with a controlled discharge ostomy device The present invention aims to further improve versatility and ease of use of descent ostomy devices controlled mortar.
    SUMMARY OF THE PRESENT INVENTION Aspects of the invention are defined in the claims. Generally speaking, a first aspect of the present invention is basic. a surprising assessment that the desirable cushioning feature of the self-propelled seal described above becomes an unwanted impediment when attaching the device to a stoma. The natural shape of the self-propelled seal when not in contact with the stoma is a fully distended shape, projecting significantly more than the shape when in contact with a stoma. During the fitting process, as the device is pressed towards the skin, the seal contacts the stoma and compresses dynamically, and significantly in volume, to match the stoma shape. The problem is that the damping feature is specifically designed to withstand such dynamic compression of the seal, and instead of generating a counter-force by pressing on the stoma. This can result in three problems: (i) resistance to dynamic compression results in an initially high contact pressure against the stoma, which can be significantly greater than that normally expected when in an operative state. The high contact pressure makes the fitting uncomfortable, and the discomfort can continue beyond the fitting stage until sufficient time has passed for the dynamic damping effect to be relieved, and pressure balance to be achieved; 35 (ii) the final form adopted by the seal may not be that matching a natural stoma shape, because both the seal and the stoma are subjected to high contact pressure. This can reduce the effectiveness of the seal; and
    (iii) the reaction force in the seal is in turn supported by means of a fixation
    - by adhesive between the device and the skin.
    The greater contact pressure on the stoma results in a greater reaction force, placing additional tension on the adhesive fixation, which "may be greater than that normally found once in the operating state.
    The additional tension can cause a risk of weakening the adhesive fixation, or increasing the
    . risk of leakage.
    With the device in place, it is difficult if not impossible to observe or check the state of the adhesive fixation, and so this problem can go unnoticed.
    The problems indicated above can be mitigated by reducing the seal's damping characteristic to allow the seal to change more readily.
    However, reducing the damping characteristic is undesirable, because the seal has less capacity to withstand an external challenge from the stoma.
    Thus it was discovered that there is an inherent incompatibility between a desirably high damping characteristic that improves dynamic sealing performance in use, and a requirement for a small damping feature to facilitate initial fitting of the device to a stoma.
    The first aspect of the invention provides a different approach to a controlled discharge ostomy device including a self-propelled seal.
    As used in this document, a self-propelled seal means, for example, a "W seal that does not require an external source, such as an inflation pump or syringe, to generate a sealing force or driving force towards the stoma. .
    The self-thrust seal may optionally include an elastic component (e.g., an elastic device or element) to generate a seal or buoyant force, and / or a cushioning device to cushion displacement of the seal in addition to the effect of the elastic element.
    The invention involves placing the seal in an unimplemented state (or moving the seal to this state) before attaching the device.
    Relocating the seal against the pushing force before fitting prevents the stoma from being subjected to the seal resistance for compression at the time of fitting.
    In the unimplemented state there is substantially no contact between the seal and stoma (or at least less contact when compared to a fully implemented state of the seal). Once released, the seal begins to position itself automatically under the effect of the seal's self-impact.
    If the self-propelled seal has a dynamic damping characteristic, not only does the technique indicated above prevent high contact pressure from being exerted on the stoma during fitting, but the initial contact pressure can even be less than 35 that would be exerted by the elastic element alone. This is due to the fact that the damping feature can also act in reverse, damping or reducing the movement of the seal from the state not implemented towards the stoma.
    The full strength of the elastic foam is exerted only when the seal has been implemented and
    . achieve pressure balance.
    In addition to a more comfortable fit, positioning the seal for contact with the stoma "from an unimplemented condition can achieve a better fit of the seal, than if the seal is forced to compress when fitted in an entirely condition. implemented.
    It is believed that this better fit may be a result of (i) the seal being able to drape around the stoma more freely as it contacts the stoma progressively during positioning, and / or (ii) avoiding or reducing the extent by which the stoma is deformed by itself from its natural form by contact pressure on the stoma.
    The seal can be placed in the unimplemented state at any time between, and including, manufacture and immediately before fitting the device.
    In one form, it is preferred that the seal is movable to the state not implemented by a user at a time chosen by a user, for example, immediately before fitting. 15 A sealing shifter is attached so that it can be released (or plugged in so that it can be released) to the device.
    For example, the sealing shifter is "coupled by means of a mechanical fastener or adhesive, to form an assembly combined with the device.
    The fastener can be locked or otherwise secured to an 'ostomy coupling element of the intended device for mounting the device in an operative position on a stoma.
    Alternatively, the fastener can be locked or otherwise secured to a part of the device other than the ostomy coupling element.
    The device part, for example, can be a periphery of a housing or cover of the device.
    Avoiding attachment to the ostomy coupling element and / or contact with it preserves the state of the ostomy coupling element until the first use.
    In a preferred form, the seal shifter is manageable by a user to move the seal to the position not implemented at a time chosen by the user.
    The sealing displacer can be comprised in an auxiliary device for the device.
    The auxiliary device, for example, can be in the form of a shield or shield or other packaging for the device.
    Use of the sealing shifter enables the seal to be handled with the protector still mounted on the device, thus avoiding the risk of dirt or damage to the sealing surface.
    The sealing shifter is releasable from the device, as a result of which the sealing begins to implement under the effect of self-ejection of the seal.
    The seal shifter is preferably displaceable between a first limit position 35, in which the seal shifter accommodates the seal in a fully implemented form (or at least close to it) so that the seal naturally stretches, and a second limit position corresponding to the state not implemented from the fence.
    The first limit position can optionally define a cup shape to receive the seal.
    - tion, and / or the second limit position can optionally define a shape opposite the cup with a convexity opposite to the first limit position.
    In addition or alternatively, the sealing shifter can be configured to be generally bistable, adopting one or another position of the limit positions in a stable manner.
    The seal shifter can be configured to cover substantially the entire otherwise exposed surface of the seal or at least a major part of it.
    The sealing displacer can extend across the otherwise exposed surface, from a peripheral part of the seal to an opposite peripheral part.
    The seal preferably has a cushioning feature such that the seal is progressively positioned from the unimplemented state once released.
    The implementation interval (the time taken for implementation from the unimplemented state to a total implemented state) can be at least 1 minute, or at least 2 minutes, or at least 3 minutes, or at least 4 minutes, or at least 5 minutes or at least 10 minutes.
    The implementation interval is preferably sufficient to provide the user with sufficient time to fit the "device to the stoma, before the seal is significantly positioned towards an operational state.
    The seal achieves full implementation against the stoma only after the device has been fitted, and the device is already in its fitted condition.
    Generally speaking, a second aspect of the invention concerns the fitting of a controlled discharge ostomy device using a separate body fitting used on the body.
    The second aspect may provide a controlled discharge ostomy device for attachment to a counterpart coupling element.
    The counterpart coupling element, for example, can be part of a body fitting by adhesive which can be placed on the body around the stoma.
    The device comprises: a first element in the form of a closed loop and including a coupling formation to make a snap engagement with said counterpart coupling element when the two are pressed together in a first direction, the coupling formation being deflectable or capable of flexing to allow snap-in engagement; a second element having at least one fixing part; the first and second elements being displaceable in said first direction (or generally parallel to it) from a first unlocked position, in which the fastening part does not substantially hold the coupling formation against said displacement, to a second locked position to hold (directly
    ta or indirect) the formation of coupling of the first element against said displacement;
    Cooperation retainers on the first and second elements to: (i) retain said first and second elements initially in said unlocked position with a first retention resistance until pressure is applied to cause relative displacement of the first and second coupling elements for the locked position, and (ii) retaining said first and second elements in said locked position with a second retention resistor (optionally greater than said first retention resistor) .10 The optional device additionally includes a single use feature to obstruct fixation of the device to said counterparty coupling element more than once. Preferably, the single use feature comprises a frangible part of the second element. In order to separate the device after a first use (or first fixation ), the frangible part of the second coupling element is configured to be torn or broken 15 at least partially, releasing the thus the effect of fixing the fixing part. Then, the second element is substantially unable to hold the coupling formation "(at least to the same degree as that of the first fixation). The counterpart coupling element can be configured in such a way that the% mounting force required for snap-fit gear with the formation of 20 coupling of the first element is less than the first retention resistor- Before the first use, the first and second coupling elements are retained in the unlocked position by the cooperation retainers. in order to mount the device on the counterparty coupling element, the device is pressed against the counterparty coupling element.The snapping coupling force being less than the first holding resistance generally stimulates a snapping effect The counterpart coupling element is able to engage with the coupling formation in general before this will cause relative displacement between the first and second elements to the locked position. Once in the locked position, the securing part of the second element secures the formation of deflection coupling, thereby locking or securely securing the device to the counterpart coupling element. In order to separate the device, the frangible part is torn or broken, releasing the fixation effect. The first element can remain attached at least temporarily to the counterpart coupling element, at least until an external force is applied to separate the two. However, releasing the fixing effect means that it becomes easier to separate the first element from the counterpart coupling element. Optionally, the second element can be moved away from the first element, exposing the first element and facilitating separation. The second
    of the element can be modeled or configured to involve at least partially
    . the first element at least when in the locked position.
    The first and second aspects can be used independently of the other
    "another, or advantageously in combination. 5 A third aspect of the invention concerns an auxiliary device for a controlled discharge ostomy device.
    Whether or not the device includes a self-propelled seal, and / or a coupling element initially retained in an unlocked position, and / or a single-use feature, the fourth aspect provides a molded plastic protector, the protector being configured to be coupled so that it can be released to the device to form an assembly combined with it, to protect the body-facing part of the device before using the device.
    The body-facing portion of the device typically includes at least one stoma veil for sealing fit with a stoma in use, and a mounting device for mounting the device in an operative position on a stoma.
    The fence, by its nature is delicate and vulnerable to damage.
    Damage to the sealing surface can reduce the effectiveness of the stoma seal, and result in premature leakage of excrement.
    "to during the normal use life of the device.
    The protector can also keep the seal surface clean, while enabling the device (with the protector mounted on it) "to be transported in a suitable bag, such as a hand bag or briefcase, until it is attached.
    The protector optionally includes at least one of: (i) a user-manageable sealing shifter to move a self-propelled seal from the device to an unimplemented position before fitting the device to a stoma; (ii) a substantially rigid coupling element protection part to protect a first element of the device against external forces that could otherwise push the first element from an unlocked position to a locked position; (iii) a fixing part for securing and supporting a second element of the device, the second element including a frangible part that is selectively breakable or tearable in use to release the device; (iv) a fixation profile to cooperate with a periphery of the device, to couple the protector to the device to form a combined assembly with it.
    The protector can be configured to extend over and / or substantially cover a side facing the device body.
    The protector may be in the form of a casing half.
    The protector may include one or more concave or plate-like parts.
    The sealing shifter can be placed in a center of the protector.
    The rigid protection part may comprise a defense in the form of a channel, the
    fesa extending in a closed loop to define an endless channel.
    The protection part
    - rigid can be reinforced, for example, by one or more ribs.
    If the sealing shifter and the rigid protective part are both provided, the "" rigid protective part may extend around the sealing shifter.
    The rigid protection part 5 and the sealing displacer can be joined in an interface profile, or separated by it, which allows displacement of the sealing displacer without substantial displacement of the rigid protection part.
    The interface profile, for example, can comprise one or more folds, corrugations or folds in the plastic material.
    The fastening part may comprise a step-shaped recess in the protector and extend around a closed loop path.
    The fixing profile may comprise one or more recessed flaps.
    The protector may have a surface profile on one side which is generally the negative of the surface profile on the other.
    The protector can be made of plastic material that is sufficiently rigid to define a self-supporting shape, but which is flexible to allow limited deformation (for example, for the sealing displacer, and to allow the protector to be separated from the device). The protector, for example, can be made of blow-molded or vacuum-molded plastic.
    In a fourth related aspect, the invention provides a plastic protector for <a controlled discharge device, the protector comprising: a surrounding edge portion arranged near or on the periphery of the protector; an annular step part radially internal to the edge part and extending towards a first side of the protector; an annular channel part radially internal to the annular step part, and extending further to said first side than the step part; and a movable button part arranged radially internal to the channel part.
    The scrollable button portion may be less rigid than at least the channel portion.
    The channel part can define a protection defense.
    The movable button part can be joined to an inner wall of the channel part by means of an interface region that allows manipulation of the button part without substantial deformation of the channel part.
    The generally movable button part can be central, and the other parts progressively arranged on the outside of the button part.
    In a related fifth aspect, the invention provides a controlled discharge ostomy device, the device comprising: a first integrated module comprising: an upper wall; a collapsible collector hanging from the top wall at a first open end of the collector; and a first closed loop element hanging from the collapsible collector at a second open end of the collector; the first module defining a first chamber; a second integrated module comprising: a second element including a securing part to cooperate with the coupling formation of the first element to secure the deflection coupling formation outwardly, the second element
    - including a frangible part to release the fixing effect when the frangible part is broken; and "a third integrated module comprising: a seal support wall 5 and a seal membrane hanging from the seal support wall, the seal support wall and the seal membrane defining a seal chamber in which a component is arranged. elastically compressible (for example, a device or material), the third module being located in an operative position at least partially within the first chamber of the first module with the sealing support wall arranged close to the upper wall .
    The second element and / or module in general can have a closed loop shape, and define a skirt profile around the first module.
    At least a part of the upper wall of the first module can be received inside or in a respective cover of the second element.
    The second module is typically an integrally shaped item consisting of the second element.
    The frangible part can be defined by means of a line or region of "relative weakness.
    In use, when a user tears or breaks the frangible part, this can split the closed loop shape of the second element, changing the loop to a des-%
    to be continued.
    The sealing support wall may comprise or include one or more ports for controlling fluid flow into and / or out of the sealing chamber.
    At least one door can comprise a chimney that extends through an opening in the upper wall (when the modules are assembled together). In addition or alternatively, at least one (other) door can communicate with a space between the sealing support wall and the upper wall (when the modules are assembled together). The upper wall (of the first module) and the sealing support wall (of the third module) together can define a flat ventilation space by communicating with the first chamber around at least a part of the periphery of the wall sealing support.
    A deodorizing filter and / or a phase separator can be arranged in the flat ventilation space.
    When both are provided, the phase separator preferably surrounds the deodorizing filter.
    The phase separator, for example, can comprise open cell foam, or some other material that allows the passage of flatus while resisting the passage of at least semi-solid (and optionally liquid) residue. A coupling is provided to hold the third module in the operating position with respect to the first module, optionally in conjunction with the second module.
    The coupling
    can comprise elements configured to form an interference fit - (for example, locking or firm friction). The elements may include cooperation flaps on the sealing support wall and the upper wall, and / or "chimney interlocking surfaces and the respective opening of the upper wall through which the chimney passes. 5 An additional coupling is provided between the second module and at least one of the first and third modules, to retain the modules in the assembled condition. The coupling may comprise elements configured to form an interference fit (for example, locking or firm friction). , a controlled discharge ostomy device assembly comprises (i) a stool seal that is self-propelled with a dynamic damping characteristic that resists changes in seal volume, (ii) a displaceable snap-fit coupling element of an unlocked position to a locked position as part of a press fit process, and (iii) a single use frangible part. a protective shield removably coupled to the device forming an assembly combined with it. The protective shield comprises (i) a maneuverable sealing shifter to move the "stoma seal to a non-operative position ready for fitting, (ii) a substantially rigid protective part to protect the condition of the coupling element, and (iii)
    W a fixing part to hold the frangible part for single use. The aspects indicated above can be used independently from one another advantageously in combination. Various additional or alternative features, objectives and advantages of the invention will be apparent to those skilled in the art from the detailed description below. Protection can be claimed for any new feature or idea revealed in this document and / or in the drawings, whether emphasis has been placed on it or not.
    BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic section through a preferred modality of the controlled discharge ostomy device, with a protective shield in exploded view. Figure 2 is an exploded schematic view in perspective of the components of Figure 1. Figure 3 is a schematic section similar to Figure 1, showing the protective shield attached to the device as a combined assembly prior to fitting. Figure 4 is a perspective view from above of the components of Figure 3. Figure 5 is a schematic section illustrating displacement of the seal to an unimplemented position, using the protective shield, before fitting. Figure 6 is a schematic section showing separation of the protective shield from the device.
    Figure 7 is a schematic section showing the fitting of the device to a table with the seal in the not implemented state. Figure 8 is a schematic section showing the seal reaching an "implemented state after initial device engagement. 5 Figure 9 is a schematic and exploded view of the device, illustrating a relationship between a device coupling element and a fitting. body side. Figure 10 is a schematic bottom view in perspective of the device coupling element alone. Figure 11 is a schematic section along the line Xl-Xl of figure 10, on an enlarged scale. 12 is a schematic section showing on an enlarged scale a detail of a circled part of figure 1, and showing an approximation of the device coupling element to a body side coupling element (shown in dashed line). figure 13 is a schematic section similar to figure 12, but showing a first stage of engagement with the body side coupling element (shown in dashed line) with the device coupling in the unlocked position. "Figure 14 is a schematic section similar to figure 12, but showing a second stage of engagement with the body side coupling element (shown in dashed line) with the device coupling element moved to the locked position. Figure 15 is a schematic section showing, in exploded view, a modular construction of the device, Figure 16 is an exploded schematic view illustrating the components of the third module, Figure 17 is a schematic view in perspective showing the second and third device modules.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The following description refers to all drawings, although certain drawings are selected to highlight the features described. The preferred single embodiment incorporates multiple aspects of the invention, as described individually below. These aspects can be used independently of each other, or advantageously in combination as in the illustrated form. Sealing displacement before fitting device into stoma A first aspect used in the preferred embodiment is provision for the seal to be displaced to make the device ready for fitting.
    Referring to the drawings, a controlled evacuation ostomy device 10
    . it is illustrated to control discharge from a stoma 12 of the person using the device (figures 7 and 8). Device 10 in general comprises a cover 14, a "stoma seal 16 and a mounting device 18. Although figure 1 shows these 5 features as distinct items for ease of understanding, it will be realized that each resource can be made of different components, and which parts of different resources can be integrated together.
    The stoma seal 16 is configured to seal internally and / or externally against the stoma 12, in order to obstruct discharge of body waste.
    The seal 16 can be configured to block the discharge of at least solid waste, more preferably also semi-solid and / or liquid waste.
    The seal 16 can be configured to allow flat gas to escape through stoma 12, in order to prevent flat accumulating uncomfortably within the stoma.
    Discharged flatus passes through a deodorizing filter 20 and is vented into the atmosphere through one or more ventilation holes 22 in the cover 14. 15 The seal 16 is of a self-propelling type, which generates a driving force to apply a sealing force to the stoma.
    The term self-propulsion means "that, once fitted and in use, the seal (or device) generates its own driving force towards the stoma without relying on the application of a W 'force.
    pressurization from a source external to the device 10 (for example, using an external inflation pump, or applying a physical pumping force to the device). In the present embodiment, the seal 16 comprises a flexible membrane 24 and an elastic component 26 to urge the flexible membrane towards the stoma 12 in use.
    The elastic component 26 can take a variety of shapes, such as a compressible fluid and / or an elastic material element.
    In the preferred form, the elastic component 26 25 comprises an element made of elastically compressible plastic foam.
    The foam may be open cell foam.
    Suitable foam materials include polyurethane, cellulose, or olefin.
    Closed cell foams may also be desirable.
    An ideal three-dimensional shape of the foam element is discussed later with reference to figure 16. The elastic component 26, when compressed, generates or maintains a return force on the membrane 24, thus providing at least one component of the sealing pressure in use.
    The elastic component 26 can be supported by a support wall 28 of the cover 14 or attached to it.
    The seal 16 additionally comprises a damping device that cushions or resists certain movement or displacement of the membrane 24. The damping device 35 may comprise a damping chamber 30 for damping fluid.
    The damping chamber 30 can accommodate the elastic member 26. The membrane 24 can form at least part of the wall of the damping chamber 30.
    A suitable damping fluid, for example, is air.
    Chamber 30 comprises additions
    . one or more ports 32 to control admission and / or discharge of the curing fluid into / out of the buffer chamber 30. For example, the port (s)
    "ta (s) 32 can (m) restrict the flow rate of damping fluid through port (s) 5 (in a specific intake or discharge direction, or in both intake and discharge directions) Restricting the damping fluid flow rate decreases the rate of change in chamber volume 30, and consequently dampens membrane movement 24. Restrict damping fluid intake through the port (s) 32 restricts the rate at which the seal 16 can expand to urge the membrane 24 against the stoma 12. Additionally or alternatively, restricting the discharge of dampening fluid through port (s) 32 restricts the rate at which seal 16 can contract and / or move in a direction away from the body in use.
    A variety of different configurations for port (s) 32 is possible, to provide a variety of different possible damping characteristics.
    The cushioning feature may result from an effect composed of several doors operating in parallel to each other.
    In general, a desirable damping characteristic is
    - one that comprises: (i) a restriction for admission of inflation fluid, to decrease expansion or movement of the seal towards the stoma; (ii) a damping fluid discharge restriction to decrease compression or seal movement away from the stoma; and (iii) a pressure relief effect to allow substantially unrestricted damping fluid discharge if pressure in the inside the damping chamber 30 exceeds the pressure outside the chamber by a predetermined threshold.
    The threshold, for example, can be at least 75 mm Hg.
    The intake restriction (j) and the discharge restriction (ii) can be substantially the same as each other, or they can be different in magnitude.
    In any case, both restrictions (i) and (ii) can be provided in common by a bidirectional port.
    Alternatively, the restriction for admission (i) and the restriction for discharge (ii) can be implemented through different unidirectional doors.
    The pressure relief effect can be provided via an additional pressure relief port, or it can be provided as an additional valve function from one of the other 30 valves.
    A highly practical configuration is a first port 32a that has a bidirectional feature that acts as a restriction for fluid flow in both the inlet and discharge directions, at substantially the same degree.
    The first port 32a can be implemented by means of a piece of porous material (for example, microporous). The first port 35 can set an air flow rate between 0.1 cc / min and 15 cc / min under an applied pressure between 5 mm Hg and 40 mm Hg.
    A second port 32b provides the pressure relief function, the second port 32b comprising a valve that opens to create a substantially unrestricted path for fluid discharge from the chamber 30 when a. fluid pressure inside chamber 30 exceeds the external pressure by more than the threshold mentioned above. 4 At least one of the ports (here 32a) can communicate directly with the atmosphere outside the device. Additionally or alternatively, at least one of the doors (here 32b) can communicate directly with the space containing the flat ventilation filter 20, in such a way that the door communicates indirectly with the external atmosphere through of filter 20. Device 10 is initially fitted with a protector 40 that protects the body side components of device 10 before device 10 is used. The protector 40 typically has the shape of a shield, or another shape that follows the shape of the body side face of the device. The protector 40 extends to substantially cover the entire side facing the body of the device 10. The protector 40 can also encapsulate a peripheral edge of the device, in order to protect the device from side impacts. The protector 15 40 is coupled so that it can be released to the device 10 by means of the protector fixing tabs 42 that fit with the periphery of the device 10 (for example, the periphery - of the cover 14) to form a combined assembly . Although the present modality illustrates a mechanical fit through the protector fixing tabs 42, a "adhesive" fastener can be used alternatively or in addition to this. 20 Protector 40 comprises one or more sections selected from: a peripheral edge 44, an annular step 46 and a sealing displacement 48. Optionally for this aspect, a substantially rigid mounting device protection part (also referred to as a coupling element protection part) 49 can also be provided to protect the device mounting part 18. Whether the rigid protective part 49 is used 25 or not, it can be seen that the protector fixing tabs 42 fit with a part of the device that is distinct, and preferably also free, from the mounting device
    18. This can prevent strain on the mounting device 18 or use before fitting the device to a stoma, so that the mounting device 18 is preserved in an ideal state for use. 30 The present modality comprises all sections, the annular step 46 extending radially internal to the edge 44, and the sealing displacer being disposed radially internal to the step 46. The different sections are formed integrally as a plastic molding of single piece. Plastic molding, for example, can be vacuum molding or blow molding. The flaps 42 project inwardly from the edge 35 44, and define recesses with respect to the annular step 46. The sealing shifter 48 is generally arranged centrally, so that in general it is aligned with the seal 16 of device 10. As well as protecting seal 16, a function
    significant effect of the seal shifter 48 is to control or establish the state of the seal
    - tion 16. In the present embodiment, the seal shifter 48 is shaped to have an initial shape (figures 1-4) that corresponds to, or at least accommodates or receives at least 5 partially, seal 16 when in a fully (close to) relaxed.
    The fully stretched state is the state in which the sealing membrane 24 is fully stretched or expanded by the elastic device 26. The sealing shifter 48 can accommodate the seal 16 in the fully stretched state, or the sealing shifter 48 can accommodate seal 16 in a state close to fully stretched (e.g., a stretched state that is similar to the fully stretched state, even if seal 16 is slightly compressed). The seal shifter 48 comprises a section in the form of a plate or cup defining a pouch to house or receive at least part of the seal 16. Referring to figure 5 at some point before fitting the device 10 to a stoma, the user (or other health care professional) presses displacer 48 to move seal 16 to an unimplemented state.
    Moving from the seal causes the seal to "compress or retract to a position and / or shape in which seal 16 will not initially contact stoma 12 when the device is attached.
    Typically the user moves the seal just before attaching the device 10, but the user can also move the seal earlier.
    As indicated in figure 5 by the arrows, the user can compress the device 10 with its protector 40 above and below, for example, between opposite fingers and thumbs.
    The sealing shifter 48 of protector 40 deforms to dislodge sealing 16, while protector 40 remains attached to device 10. Although port 32a tends to restrict fluid discharge from chamber 30, as soon as the pressure inside the chamber exceeds threshold, the second port 32b opens to allow fluid discharge from the chamber 30. As explained earlier, the threshold is relatively modest, and is easily exceeded by manually applying finger pressure by compressing the seal.
    Therefore, as long as the user is reasonably skilled and able to apply modest finger pressure to the seal shifter, second door 32b will open to allow seal 16 to be easily compressed without significant damping resistance.
    The seal shifter 48 can function to retain seal 16 in its unimplemented state until protector 40 is removed.
    Referring to figure 6, device 10 is separated or ejected from protector 40. Typically, separation occurs once seal 16 has been displaced.
    In the present 35 modality, when pressure is applied between opposite fingers and thumbs, the seal 16 moves progressively until it reaches its unimplemented state as a result of which the pressure applied to the protector 40 then flexes the protector, releasing the contact.
    fixing bracket between the flaps 42 and the cover 14 at least at one point around the
    - periphery (and optionally all around the periphery). The separation of the device 10 from the protector, therefore, is an uninterrupted part of the same operation as soon as the seal
    "reaches its unimplemented state.
    In other modalities, the protector 40 can be configured to remain attached to the device 10 even if the seal 16 has been moved to its unimplemented state, until some additional manipulation is made to release the fit between the flaps. fixing 42 and cover 14. Referring to figure 7, once the device 10 has been separated from the protector 40, the action of the seal shifter 48 on the seal 16 is removed, and the seal 16 10 tends to expand again under the influence of the elastic device 26 inside the seal 16. The port 32a restricts the rate at which fluid can re-enter the chamber 30, thus dampening the movement of the seal 16 and decreasing the speed at which the sealing membrane 24 it can be repositioned in the direction of its fully stretched state.
    Preferably, once released 16, the seal 16 can. expand 15 relatively slowly over a period of several minutes towards its fully implemented state, even though the elastic device 26 by itself may "tend to decompress in a matter of seconds where the damping effect has been removed.
    Port 32a can be configured in such a way that the implementation time from "not implemented to fully implemented" can be at least
    20 in 1 minute, or at least 2 minutes, or at least 3 minutes, or at least 4 minutes, or at least 5 minutes or at least 10 minutes.
    The arrangement indicated above gives the user enough time to fit the device 10 to the stoma 12 before the seal 16 advances significantly in the direction of its implemented state.
    The device 10 is fitted in position using the mounting device 18. In the present embodiment, the device 10 is configured to be mounted on a body fitting 50 which is already used on the body around the stoma 12. A body insert 50 typically comprises a cushion with skin-friendly medical grade adhesive openings 52, and a body side coupling element 54 in the form of a closed loop surrounding the cushion opening.
    The mounting device 18 30 comprises a coupling element on (first) device side configured to form a mechanical coupling fitting (e.g. interference fitting or locking fitting) or adhesive with the coupling element 54. The coupling fitting may be releasable to enable the device 10 to be separated from the body fitting 50 after use, while the body fitting remains in place on the body around the stoma 12. Alternatively (not shown) , the mounting device 18 can be configured to mount the device 10 directly on the body instead of mounting on a body insert 50 already used on the body.
    In such a case, the
    positive mount 18 may include an adhesive pad equivalent to adhesive 52
    - described earlier.
    As shown in figure 7, at the moment of fitting, the sealing membrane
    "tion 24 is in its position not implemented or close to it, out of contact with stoma 5 12. The potential discomfort resulting from high contact pressure on stoma 12 in the socket is therefore avoided.
    Also, the potential risk of a high reaction force weakening the adhesion between the body insert 50 and the peristomal skin is also avoided.
    Referring to figure 8, once the device 10 is fitted to the stoma 12, the seal 16 continues to advance or expand progressively towards the stoma 12 under 10 the pushing force of the elastic device 26. Sometime immediately after fitting (for example, between 0.5 minutes and 10 minutes), the sealing membrane 24 advances slowly to contact the stoma 12, and molds to the shape of the stoma 12. The initial contact pressure between the membrane 24 and the stoma 12 is less than that which would be applied by the elastic device 26 alone. This is because the damping effect of the door 32a 15 withstands the boosting effect of the elastic device 26, thereby reducing the force applied to the membrane 24 by the elastic device 26. Once the seal 16 has a- "molded entirely in the form of stoma 12, chamber 30 achieves pressure equalization with the external atmosphere, and the volume of chamber 30 stabilizes.
    As the seal 16 "approaches the pressure and / or volume stabilization, the dynamic damping effect weakens, and the contact pressure between the membrane 24 and the stoma 12 reaches that exerted by the elastic device 26. Implementing seal 16 from an unimplemented condition enables seal 16 to more easily conform to a natural stoma shape 12. A seal 16 like this can be extremely effective.
    The contact pressure between the seal 16 and the stoma 12 comprises a static component and a dynamic component.
    The static component is generated by the elasticity of the elastic device 26, which remains partially compressed when molding to the stoma shape, and applies an elastic return force towards the stoma 12. The elastic device 26 is configured in such a way that the passive component of the contact pressure does not exceed a predetermined limit value that could otherwise result in reduced blood perfusion in the stoma 12. For example, the predetermined limit value can be approximately 25 mm Hg.
    The dynamic component of contact pressure results from port 32a regulating fluid flow to chamber 30 of seal 16 and from there, as the chamber volume adapts to follow any stoma movement 12. Port 32a defines a dynamic damping characteristic of adaptation of the seal, 35 in addition to the effect of the elastic device 26. During expansion of the seal 16, the dynamic component is negative, reducing the contact pressure (as explained earlier during implementation of the seal); during seal compression 16, the right component
    dynamics is positive, increasing the contact pressure.
    A self-propelled project like
    . it has the advantage that no external source of inflation is needed, thus avoiding the user having to charge a separate device like this.
    The pressure inside the seal 16 is self-regulating, and the seal 16 can adapt to different volumes 5 automatically.
    While the elastic device 26 allows a wide range of stoma shapes and sizes to be accommodated, the dynamic damping characteristic resists the compression of the seal 16 that the stoma 12 must initiate when pushing out.
    The fluid trapped in the chamber 30 by the damping characteristic generates a temporary dynamic increase in the contact pressure exerted by the seal 16 to counter a challenge like 10 this coming from the stoma.
    A transient challenge can be caused by excrement and flatus in the stoma, and the temporary increase in sealing pressure improves sealing 16 against escape of excrement, without the increased sealing pressure being exerted for a long time to obstruct regular stoma blood perfusion.
    The damping feature only temporarily captures inflation fluid, thus allowing seal 16 to adapt in volume if the movement out of stoma 12 is more than transitory.
    The pressure relief port 32b provides an additional degree of security to ensure that the "pressure in the chamber 30 exceeds the pressure shift threshold, even when the additional dynamic component is significant.
    Pressure relief port 32b opens to vent inflation fluid if the pressure relief threshold is exceeded. 20 The technique of moving seal 16 to an unimplemented position before fitting the device enables the damping effect dynamic to be used advantageously both during fitting and in use of the device 10. Displacement Device Coupling Element A second aspect of the preferred embodiment concerns a coupling element arrangement for making a pressure fit with an element body side coupling to fit the device to a stoma.
    This aspect can be used in combination with the first aspect, or independently of the first aspect.
    The following description focuses on a coupling for the device, but this modality can also use any combination of features of the first modality as described 30 in complete combination.
    As best seen in figures 9-11, the mounting device comprises a first element (first coupling element or device side coupling element) 18 distinct from the cover 14 (second element). The first element 18 is in the form of a closed loop (for example, cancel in this mode). The first element 18 35 has a base 70 carrying a coupling formation to mechanically engage with the body side coupling element 54 of the body fitting 50. The coupling formation comprises a plurality of tabs 72 hanging from the base 70 in spaced side by side positions around the periphery of the base 70. Each flap 72 has a
    . recess tooth projecting radially inward 74 near its tip.
    Tooth 74 is configured to fit mechanically with a flange 58 of the coupling element
    - body side 54. Each flap 72 is capable of flexing, or deflecting from its normal position 5, with respect to the base 70, independently of the other flaps 72 to allow the side-side coupling element to engage and disengage. body 54. Each flap 72 may include a pivot or pivot part 76 (figure 8) around which flexion of flap 72 is promoted.
    The hinge or pivot part 76 can optionally be defined by means of a decreased part 78 (or some other material weakening) of the flap 72, or at the junction between the flap 72 and the base 70. The cover 14 can comprise a upper wall 14a and a skirt 14b around the upper wall 14a.
    The upper wall 14a and the skirt can be integral, or they can be separate parts assembled together.
    The first element 18 is movably supported by a fastening part 80 of the cover 14. The fastening part 80 is in the form of closed loop 15 and hangs, for example, from skirt 14b of the cover 14. In figure 9, the first element (device coupling) 18 is shown separate from the cover 14 and the
    · Fastening part 80 (or floating with respect to them), but figures 12 and 13 show the first element 18 in a first unlocked position with respect to the fastening part "80, and figure 14 shows the first element 18 in a second locked position with respect to the fastening part 80. The degree of axial overlap between the fastening part 80 and the first element 18 controls the degree to which the flaps 72 are free to flex to allow for fitting or disengagement of the body side coupling element 54 with respect to the first element 18. In the first unlocked position, the flaps 72 are not substantially blocked by the fastening part 80, and the flaps are relatively free to flex outwards. .
    In the second locked position, the flaps 72 are substantially blocked or secured by the fastening part 80, effectively locking the flaps 72 against flexing outward.
    The first element 18 is secured with respect to the fastening part 80 by means of cooperating retainers (for example, 82-88 in the present embodiment) provided with at least one in the first element 18 and at least one in the fastening part 80 ( or elsewhere in coverage 14). Retainer functions may include one or more of: (i) retaining the first element 18 and the clamping part 80 of the cover 14 (second element) initially in the unlocked position with a first retention resistor until pressure is applied to cause displacement with respect to the locked position; and 35 (ii) retain the first element 18 and the fastening part 80 of the cover 14 (second element) in the locked position with a second retention resistor.
    The second retention resistor may optionally be greater than the first retention resistor.
    One or both of the retention resistors may depend on whether
    . the first element 18 is or is not engaged with the body side coupling element 54, since such an engagement may restrict flexibility or deformability of the first element
    - ment 18. 5 Various retainer arrangements are considered.
    Purely by way of example, in the present embodiment, the retainers include one or more of: (a) first retainers 82 in the form of rim segments hanging from the base 70 and spaced between the flaps 72. The first retainers 82 project radially outwardly in addition to the base with an overlapping profile such as a ladder.
    The tabs 72 and the first retainers 82 alternate in a peripheral direction, around the periphery of the first element 18. Clearances 90 can be provided between the facing edges of the first retainers 82 and the tabs 72. (b) second retainers 84 in the form of flange-like or rib-like segments protruding from the base 70, at a level spaced from the first retainers 82 by an axial separation 92. The second retainers 84 are aligned with the positions away from the flaps 72, but protrude radially out of the base 70, for example
    - example.
    Each of the second retainers 84 has a length that is generally equal to the spacing between first consecutive retainers 82, which facilitates molding.
    Alternatively, second retainers 82 may be of other length (s), 20 or fused together into a single second retainer (not shown) extending as a substantially continuous rib or flange around the total periphery of the base 72, although this may require a more complex molding tool. (C) third retainers 86 at the end of the fixation part, and defining teeth or mating directed inwards.
    The third retainers 86 have offset positions corresponding to the offset positions of the flaps 72, such that the third retainers 86 can overlap the second retainers 84 corresponding to each flap 72. Each third retainer 86 can also have an angular length in the peripheral direction (for example, circumferential) that is greater than the spacing of first consecutive retainers 82, in such a way that each third retainer can also overlap the ends of the first two retainers 82 on one and the other side of a respective flap. 72. (d) a fourth retainer 88 in the form of an annular shoulder directed radially into the fastening part 80. The cooperation between retainers 82-88 is as follows: When the first element 18 is in the first unlocked position (figures 12 and 35 13), the first and second retainers 82 and 84 in general overlap and fit with opposite faces of the third retainer 86. The third retainer has an axial thickness that is not greater than the 92 spacing. The first retainers 82 fit or
    face a side facing the body 94 of the third retainer 86, and the second retainers
    . 84 fit or confront an opposite side not facing the body 96. This fitting supports and retains the first element 18 in the first unlocked position with the resistance of
    - first retainer, until a force is applied in a first direction 98 exceeding the first retainer resistance, to move the first element 18 with respect to the fastening part 80 in the direction of the second locked position.
    When the first element 18 is moved to the locked position (figure 14), the fourth retainer 88 acts as a stop that engages with the first retainer 82 to limit the extent of displacement.
    The second retainer 84 passes over and fits behind 10 of the third retainer 86. In fact, the second retainer 84 moves from the socket with the side facing the body 94 to the side not facing the body 96 of the third retainer 86. The new fit between the second and third retainers 84 and 86 retains the first element 18 in the second position locked with the resistance of the second retainer.
    The relative magnitudes of the first and second coupling resistances can be determined using the 15 shapes of the first and third retainers 82 and 86, respectively.
    For example, faces that fit when in the first unlocked position may have a lower overlap.
    "tion and / or a greater degree of ramp or rounding, when compared to the faces that fit when in the second locked position.
    Such modeling may set the first retention resistor to be less than the second retention resistor. 20 Having described the fit between the first element 18 and the fastening part 80 of the cover 14, the fit between the first element 18 and the body side coupling element 54 will now be described.
    Many different designs of locking profiles for the first coupling element 18 and for the body side coupling element 54 can be used that provide a pressure fit and / or release (pressing 25 together) when the first element 18 it is not substantially secured by the fastening part 80 (first unlocked position), and a firm lock locked together when the first element 18 is substantially secured by the fastening part 80 (second locked position). In the currently preferred embodiment, the body side coupling element 54 generally comprises an upright cylindrical wall 100 30 having at its distal end the annular flange 58 projecting radially outwardly, and a sealing portion 102 directed in a manner general inside.
    The leading edge of the annular flange 58 includes a rounded or ramped guide surface 104. The first element 18 consists of an annular channel that is opened in the direction of the body side coupling element 54. The channel includes the base 70, an inner wall 35 generally continuous 106 hanging from the base 70 and an outer wall generally discontinuous defined by the combination of the flaps 72 with the first retainers 82 around the periphery of the base 70. The front edge of each flap 72 also includes a rounded or ramped guide surface 108. The inner wall 106 defines
    - a sealing seat for engaging with the sealing portion 102 of the body side coupling element 52 in the assembled condition.
    In use (figure 9), the body fitting 50 is glued to the peristomal skin on stoma 5 before fitting the device 10. The use of a separate body fitting 50 allows a succession of different devices 10, and optionally one or more ostomy bags (not shown), be used involving far fewer changes to the body fitting 50 and therefore less danger to the peristomal skin.
    With the device 10 initially in its first unlocked position (figure 12), the device 10 is prepared for fitting when it is held manually so that the first element 18 meets and is generally aligned with the coupling element of body side 54. From that position the device 10 is engaged by simply pressing the device manually on the body fitting 50. Referring to figures 12 and 13, pressing the device 10 causes the tip of the 15 cylindrical wall 100 enters the channel profile of the first element 18. Initially, the guide surfaces 104 and 108 of the rim 58 and the flaps 72 contact each other, and part "of this contact force will also be applied in front of the retainers. 82 and 86 supporting the first element 18 in its unlocked position.
    However, in the unlocked position, the "flaps 72 are not substantially attached, and have a more fragile resistance than the first retention resistance.
    The result is that the flaps 72 can deflect or flex outward under relatively low contact force before there is much of a tendency for the first element 18 to move out of the unlocked position.
    The guide surfaces 104 and 108 propel each other, therefore, cause the flaps 72 to flex, allowing the flange 58 to pass over and engage behind the tooth 74 of each flap 72 (figure 13). The 25 guiding surfaces 104 and 18 and / or the significant lack of resistance of the flaps 72 contribute significantly to a low pressure fitting assembly force.
    Once this initial fitting stage has been reached, the retainers 82 and 86 are subjected to the full force of the device 10 being pressed on the body fitting 50. The total force exceeds the first holding resistance, inducing the first 30 coupling element 18 to move towards the cover 14, from the first unlocked position to the second locked position (figure 14). In the locked position, the fastening part 80 substantially prevents flexing or deflection out of the flaps 72, thereby locking the fit between the first element 18 and the body side coupling element 54. The body side coupling element 54, therefore, is captured in 35 grooves with respect to the first element 18, and the device is securely attached to the body fitting 50. It will be noticed that the two-stage coupling action indicated above using
    the first element 18 and the fastening part 80 of this modality reaches several advantages
    . significant advantages: (i) The device is fixed using a direct pressure snap action, not requiring
    - handling any separate or additional locking device.
    Full 5-lock fit is achieved by simple snap fit.
    Although there are two separate fitting stages, the user is unaware because a stage immediately follows the previous stage under the same pressure fitting force. (ii) The device is fixable using merely a relatively low mounting force to press the device into the body fitting by pressure, while the first element is in the unlocked position.
    The low assembly force does not compromise the final security of the fixation. (iii) The final securing security is defined at least partially by the effect of the securing part that holds the first element when the first element is moved to the locked position. This enables a significantly greater coupling resistance than would be achieved using a conventional snap-fit coupling mountable by similar mounting force.
    In particular, the coupling resistance is eminently suitable to withstand the sealing support and / or reaction forces found in a controlled discharge ostomy device including a seal "pressing on the stoma. This may include the additional dynamic sealing force that may result from the damping effect described in the first embodiment.
    At least one (or each) third retainer 86 can optionally be modeled to include a protective part (not shown) in a position corresponding to a respective tab 72. The protective part protrudes radially inward to a greater degree than that of the rest of the third retainer 86. The protection part is dimensioned to hold the flap 72 more securely than the rest of the third retainer 86, thus improving or protecting the fixation effect.
    The protection part is dimensioned in such a way that it does not extend to overlap with the first retainers 82, and so it does not interfere with the displacement of the first element 18 from the first unlocked position to the second locked position. 30 It will be seen from the previous description that the correct two-stage fitting may depend on whether the first element 18 is in its correct (first) unlocked position before the fitting of the device 10 on the body fitting 50. In a shape , the first element 18 is made of plastic of a color significantly and / or surprisingly different from that of the cover 14 so that the relative position of the first element 18 can be easily determined by means of a visual inspection.
    For example, cover 14 may be a skin-like color, such as brown or light tan, or cover 14 may be a neutral color such as translucent.
    The first
    r element 18 can be colored to have a contrasting color such as a primary color
    · (For example, blue or red). In the unlocked starting position (any of the figures 2, 5-7, 12, 13), which is the correct position before fitting, the first element 18 must be
    "project significantly beyond the fastening part 80, so that the contrasting color of the first element 18 projecting must be easily visible from a side view of the device.
    If the contrasting color is not visible, this may indicate that the first element 18 may have been accidentally moved to the locked position.
    The user must try to correct the position of the first element 18 (if the design of the device allows this), or the user must discard the device (or return it for restoration) as not being suitable for use.
    Similarly, after fitting, the first element 18 must be correctly in its locked position (figures 8 and 14). In the locked position, the first element 18 is substantially surrounded by the fastening part 80 of the cover 14. When viewing the device 10 after fitting (for example, looking down at a side view of the device, possibly with the help of mirror to see other sides of the device), the contrasting color of the first element 18 must not be substantially visible.
    If the contrasting color "is visible, this may indicate that the first element 18 has not been fully moved to its locked position, meaning that the device may not be securely attached.
    The user can try to reapply pressure to press the device 10 progressively in different peripheral positions to correct the fixation, or the user can remove the device 10 knowing that the fit has not been corrected.
    The use indicated above of contrasting color for the first element 18, therefore, can provide important indications of the status of the device, allowing a user to visually purify the state quickly, easily and intuitively.
    In most cases 25 no corrective action will be required, and the identification of the operating status is merely to confirm to the user that device 10 is functioning correctly.
    The identification of the operating state can also assist in training an ostomate to properly use device 10. Referring to figures 1-4, an additional optional feature of preferred mode 30 is the provision of a protector 40 initially attached to the device 10 to protect the body side components of device 10 before device 10 is used.
    As in the first embodiment, protector 40 typically has the shape of a shield.
    The protector 40 extends to substantially cover the entire side facing the body of the device 10. The protector 40 is coupled so that it can be released to the device 10 by means of the fixing tabs 42 that fit with the periphery cover 14 to form an integral assembly.
    Protector 40 comprises one or more sections selected from: a peripheral edge

    44, an annular step 46 and a coupling element protection part 49. The
    . The present modality comprises all three sections, the annular step extending radially internal to the edge 44, and the protective part 49 being disposed radially internal
    - to step 46. The different sections are integrally formed as a one-piece plastic molding.
    The flaps 42 project inwardly from the edge 44, and define recesses with respect to the annular step 46. The protective part 49 serves to protect the first element 18. The protective part 49 is spaced from the first element 18 to isolate the first element against impacts or other external forces received by the side facing the body, which otherwise could run the risk of displacing the first element 10 18 to its locked position.
    The protective part 49 is of a thickness of material and / or shape to give it a form of self-support in a generally rigid or firm manner.
    For example, the protective part 49 can include the ribs 49a or other form of reinforcement.
    The protective part 49 can take the form of a channel-shaped defense and extend in a closed loop to define a closed loop channel.
    Protector 40 is separated from device 10 before fitting the device.
    The invention considers several possible designs to release or loosen the fixation to the
    - body side coupling element 54 when the user wants to remove the device 10 after it has been used.
    In a form (not shown), the cover 14 can be moved from the locked position back to the unlocked position, in order to remove the fixing effect on the flaps 72, and allow easier separation.
    However, in the second embodiment, the device 14 includes the following additional features: (i) a single-use feature of the cover 14 to obstruct fixation of the device to the body insert 50 more than once.
    The single-use feature optionally comprises at least a frangible part 114 of the coverage.
    The frangible part 114 can extend 25 into or through the fastening part 80. The single-use feature 114 is optionally associated with a securable flap 200; (ii) an expandable / collapsible waste collector 116 having a sealed inlet opening for the first element 18, to define an inlet for stomach waste once the sealing effect is removed.
    The waste collector 116 is also sealed to the cover 14, for example, at an opposite end.
    The sealed part for the cover 14 can be closed, or it can be opened to facilitate flat ventilation through the cover.
    Waste collector 116 is typically made of flexible plastic film.
    The waste collector 116 in general can be tubular, although many other shapes are possible. 35 In an initial state of device 10 ready to fit into a stoma 12, waste collector 116 is folded to a collapsed state (figures 1-4 and 12) in which waste collector 116 is accommodated within cover 14 The waste collector 116 allows displacement of the first element 18 from the unlocked to locked positions, as
    . as required for proper device fitting.
    In use, when the user wants to remove device 10, the user handles the
    · Cover 14 to tear the frangible part 114. The user can do this using flap 200. 5 This loosens or removes the fixing effect of the fixing part 80 around the first element 18, allowing the cover 14 to move in relation to the first element 18 (figures 9 and 17). Moving the cover 14 away from the first element 18 removes the stoma seal 16 from the stoma 12, and stretches or positions the waste collector 116. With the effect of the stoma seal 16 removed, some stomach discharge may occur, but such The discharge is contained by the waste collector 116. The first element 18 remains attached to the body side coupling element 54 to define a contained volume for the discharge of the stoma, and to prevent dirt.
    Although the clamping resistance between the first element 18 and the body side coupling element 54 is reduced by removing the clamping part 80, removing the stoma seal 16 also removes any substantial reaction forces 15 needing to be applied by the device 10 through the body insert 50. Therefore, the relatively weak fixation of the first element 18 to the
    - body side coupling element 54 is eminently suitable while stomach discharge takes place inside the waste collector 116. Once the normal discharge has stopped, the user can easily separate the first element 18 from the element 20 of body side coupling 54 to fully separate the device 10 used for disposal.
    A handle 118 can be provided on the first element 18 to facilitate removal of the first element 18 from the body side coupling element.
    The handle 118 can be implemented as a flap or extension formed integrally of the first element 18. In normal use of the device (for example, in the first unlocked position and / or 25 in the second locked position, see figures 1, 2, 7 and 8), the handle 118 is surrounded by the cover 14, and only becomes accessible once the cover 14 has been moved from the first element 18. The fixing part 80 of the cover 14 can include a recess or space free to accommodate the projecting handle 118. The single use feature preferably prevents any attempt to reuse the device 10. Depending on the design of the device 10, the seal 16 in particular can be intended to be used safely only once, and it can be difficult to clean a device 10 used for the appropriate degree of hygiene and sterility.
    The waste collector can also be difficult to collapse into a tightly folded condition that does not collide with the sealing face. 35 Protector to accommodate both sealing displacement and mobile coupling element The preferred modality combines both the sealing displacement aspect and the aspect of a mobile coupling element.
    The combination places restrictions
    . additional design elements on protector 40. Referring to figure 1, it will be noticed that the sealing shifter 48 is next to the protection part of coupling element 49 for pro-
    - secure the coupling element 18. The two parts 48 and 49 of the guard have opposite design restrictions.
    The sealing shifter 48 is intended to be manipulated and moved by a user without much effort.
    In contrast, the protective part 49 is not intended to be deformed, as any deformation can cause the risk of pressure being accidentally applied to the coupling element 18 which can move the coupling element 18 to its incorrect locked position . 10 As best seen in figure 2, the protective part 49 is configured to be substantially rigid.
    Stiffness is aided by several reinforcement ribs 49a.
    Each rib 49a extends in a generally radial direction to resist the collapse of the protective part 49. The protective part 49 and the sealing displacer 48 join one another in an interface part.
    The interface part includes a movable or foldable part (such as one or more folds, or corrugations) that allows displacement of the sealing shifter 48 without
    - interfere with the protection part 49. The sealing shifter 48 of the interface part can optionally include a more centered part that tends to invert between a first "limit position (corresponding to the fully implemented state of the seal 16) and a 20 second limit position (corresponding to the unimplemented position of the seal 16). Furthermore, the protector 40 serves to secure the single-use frangible part 114 of the skirt 14b, to prevent any accidental tearing of the frangible part 114, or raising the tab 200, before first use.
    As can be seen in figures 3 and 4, the edge 44 in combination with the retaining tabs 42 secure the skirt 14b.
    As can also be seen in figure 2, the additional upright flaps 44a on the floor of the annular step 46 also serve to anchor the skirt 14b and the fastening part 80 in a supported position predetermined with respect to the protector 40, such that skirt 14b is comprehensively protected by protector 40. Modular Device Construction 30 An additional aspect of the preferred embodiment focuses on a modular device construction 10. Referring to Figures 1 and 15-17, device 10 generally comprises one or more of: (i) a first integrated module 130 comprising: the upper wall 14a of the cover; the collapsible waste collector 116; and the first element 18. The waste collector 116 hangs from the upper wall 14a, and the first element 18 hangs from the waste collector 116. The waste collector 116 includes a first open end 134 sealed to the top wall. 14a, for example, near the periphery of the upper wall 14a.
    The waste collector 116 includes a second open end 134, corresponding to the waste inlet.
    . duo of collector 116, which is sealed to the first element 18. The first element 18 thus supplies the mouth of the waste collector 18, and the upper wall 14a closes the end
    - opposite.
    A chamber 138 is defined inside the waste collector 116. 5 (ii) A second integrated module 140 comprising the skirt 14b (second element) - of the cover 14. The skirt 14b is in the form of a closed loop, and comprises the fastening part 80 to cooperate with the flaps (coupling formation) 72 of the first element 18 to secure the flaps against deflection outwards.
    The skirt 14b includes the frangible part 114 to release the fastening effect when the frangible part 114 is broken.
    The frangible part 114 10 extends through the fastening part 80. (iii) A third integrated module 150 comprising: the support wall 28; and the sealing membrane 24. The sealing membrane 24 hangs from the sealing support wall 28. The sealing support wall 28 and the sealing membrane 24 together define the sealing chamber 30 in which the compression device is arranged. resiliently 26. Modules 130, 140 and 150 can be assembled together to form a mounting
    - combined device 10 device. Preferred module details include:. The first module 130 additionally comprises the deodorizing filter 20 if 20 communicating with the outlet openings 22 in the upper wall 14a.
    Several different techniques for mounting the filter 20 are possible.
    The preferred technique is to mount the filter 20, for example, by means of welding, on a support film 152 of material that is substantially impermeable to flat gas.
    The support film 152 itself is mounted on the upper wall 14a, for example, by welding, in a position outside the periphery 25 of the filter 20. Such a construction has two advantages.
    First, it enables a preferred drilling technique to be used, considering that the thickness of the materials can make welding impossible to use to join the filter 20 directly to the upper wall 14a.
    Second, support film 152 defines an outlet plenum 154 between the top wall 14a and the filter 20, allowing for improved flatness distribution to the outlets 30 22 which are slightly spaced side by side from each other, and some are not on record with the filter outlet.
    The filter 20 is of a lateral flow type.
    Flato enters the filter at its periphery (arrows 156) and flows laterally (for example, radially inward) into the filter material to exit the filter near its center (arrows 158). The backing film 154 includes one or more openings that communicate with the outlet of the filter 20 to allow 35 deodorized flatus to enter the outlet pienum 154. In the third module 150, the elastic device 26 typically comprises a piece of foam elastic material, for example, polyether polyurethane open cell foam.
    The foam can have an indentation force deflection in the range of 20 - 40 lb
    - (9.07 - 18.14 kg) suitable for generating the static component of the stool sealing force when the foam is compressed against the stoma in use.
    At least one face 164 of the
    · Foam may have a non-smooth surface pattern, such as with pits or undulations, 5 projections or channels (typically defining surface variations of less than 5 mm in height). The non-smooth surface provides little local variation in the force applied through the membrane 24 on the stoma 12 in use, to promote separation and evacuation of flatus at the interface between the sealing membrane 24 and the stoma surface 12. In the present fashion , both faces of the foam element 26 have non-smooth surfaces, in order to allow the foam to be fitted in one or the other way, thus simplifying assembly.
    The sealing membrane 24 comprises the two membrane parts 160 and 162. The first membrane part 160 is in the form of an inverted hat, for example, comprising an annular flange 160a from which hangs a cavity 160b having a sealing face. 160c.
    The sealing face 160C can be smooth, or it can have a substantially non-smooth surface, for example, with small undulations, projections or channels (typically defining surface variations of less than 1 mm in height, preferably less than
    "0.5 mm). The non-smooth surface promotes separation and evacuation of flatus at the interface with the stoma while blocking the passage of liquid and / or semi-solid excrement.
    The second "membrane part 162 acts as a mounting interface between the support wall 20 28 and the first membrane part 160. The second part 162 is welded (for example, at 163) to the support wall 28, and extends away from the periphery of the support wall 28 (for example, by a small distance less than 10 mm, preferably on the order of 5 mm or less than this). The first membrane part 160 is welded to the second membrane part 162 outside the periphery of the support wall 28. This provides convenient technique 25 for mounting the membrane part 162, which otherwise may require a complicated or intricate welding operation if welded directly to the support wall 28. It also allows for increased separation between the welding point of the first membrane part 160 and the edge of the elastic foam 26 placed inside the sealing chamber 30 before the welding, thus reducing the risk of the welding damaging the foam 26 or the vertical surface 30 from the first pa membrane part 160. The second part of membrane 162 includes one or more cutouts 161 to allow ports 32a and 32b to communicate with the interior of the seal chamber 30. The seal support wall 28 carries ports 32a and 32b to control the flow of fluid into and / or out of the stoma seal 16. Port 32a is defined 35 by a tube or chimney 166 projecting from support wall 28. Chimney 166 contains a cushion of restraining material flow, such as microporous material 168, which is retained within chimney 166 by interference fit.
    Port 32b is
    from an umbrella valve 170 or other pressure relief valve, assembled. on the upper surface of the support wall 28. Umbrella valve 170 is made of flexible elastic material and is shaped like an open umbrella or mushroom. The valve is normally predisposed to urge against and seal a door opening in the support wall 28. When the pressure under valve 170 exceeds the pressure alleviation threshold, the pressure overcomes the predisposition and lifts the valve out of its socket seal to open the discharge flow. The elastic nature of valve 170 closes the door opening again when the pressure drops below the threshold. The umbrella valve 170 is partially surrounded and protected by one or more vertical or vertical ribs spaced 172. 10 The third module 150 is located, and mounted on the first module 130, in an operating position at least partially within the chamber 138 of the first module 130. In the operating position, the sealing support wall 28 is arranged close to the upper wall 14a, leaving a channel between them for flat ventilation. A shaped piece of open cell foam 176 may be arranged in the channel between the sealing support wall 28 and the upper wall 14a. Open cell foam 176 can act as a phase separator to protect filter 22 from contamination by any "liquid or semi-solid excrement that may leak undesirably beyond the stoma seal.
    16. The pores or cells of the foam tend to capture, or resist the entry or passage of, "liquid, semi-solid excrement, while allowing gas to pass relatively de-constricted. Space 174 communicates with chamber 138 around a gap ring 178 between the periphery of the support wall 28 and the waste collector 116. In use, flat gas which the stoma seal 16 allows to pass into the chamber 138 enters the channel through the ring gap 178. The flat passes through the foam open cells, and then it passes through the deodorization filter 20, and to the outlet plenum 154 before venting into the atmosphere through the outlet openings 22. The foam piece 176 is modeled with the recesses 180 in positions for fitting around the chimney 166, and around the umbrella valve 170 and its spacing ribs 172. The chimney 166 passes through a slot opening 182 in the support wall 28 in such a way that the first door 32a can communicate directly with The 30 external atmosphere. In contrast, the second port 32b communicates with the ventilation channel which is covered by the upper wall 14a. An arrangement like this protects the pressure relief umbrella valve 170 from possible external interference or accidental obstruction, ensuring that valve 170 can always function as intended to allow at least some inflation fluid to escape from the seal chamber 30 if the pressure is too high. Spacing ribs 172 act as a protective fence partially around valve 170 preventing the edge of foam piece 176 from interfering with valve 170. In addition or alternatively, spacing ribs 172 work to ensure that, at least in the region of valve 170, the support wall
    -, 28 is always spaced from the top wall 14a by a spacing at least equal to the height of the ribs 172, thus providing sufficient headroom for the valve - umbrella 170 to rise and open when appropriate.
    Any inflation fluid discharging through valve 170 into the channel can vent into the atmosphere through filter 20 in the same way as flatus.
    The first module 130 and the third module 150 are mechanically coupled together in the assembled condition by interference fit between (i) the locking retainers 184 on the support wall 28 and the upper wall 14a, and / or (ii ) the 10 chimney 166 received in the slot 182. In the second module 140, the central opening 186 around which the skirt 14b extends can be circular or non-circular.
    In the present embodiment, the opening 186 is in the form of a cone trunk, with one side covered by a panel part 188. The panel part 188 includes a second plug opening 190 to receive the chimney tip 166 s and 15 projecting through the first slot 182. The upper wall 14a of the first module 130 may have an upper surface which is generally flat, but in the modality
    "preferred size, the upper wall 14a has a staggered upper surface, including a slightly elevated portion 192. the elevated portion 192 is shaped to match the" cone-shaped trunk of aperture 186 such that when the second module 140 20 is mounted around the first module 130, the raised part 192 fits within the opening 186, and is substantially flat with the panel 188. The upper wall 14a and the skirt 14b thus form an integral-like assembly, with an upper surface flat.
    The second module 140 and the first module 130 are mechanically coupled together in the assembled condition by means of a mechanical interference fit between (i) the chimney 166 of the second module 150 mounted on the first module 130 and projecting there- through the second slot opening 190, and / or (ii) slot retaining formations (not shown) around parts of the periphery of the raised part 192 of the upper wall 14a, and the periphery of the opening 186 of the skirt 14b.
    The frangible part 114 is associated with the lift-to-open flap 200 integrated in the skirt 14b.
    The flap 200 is delimited in one and the other side by the grooves 202 in the skirt 14b.
    The frangible part 114 is implemented in at least one of the slots 202. In normal use of the device 10, the lifting flap to open 200 forms part of the closed loop shape of the skirt 14b.
    Later, when the user wishes to remove the cover 14 from the first element 18, the user applies finger pressure to handle the flap 200. Handling the flap 200 turns the plastic material of the skirt 14b as the flap 200 is folded up.
    The manipulation tears through the frangible part 114, dividing the closed loop shape of the skirt 14b to form a divided (non-closed) loop. Dividing the skirt 14b removes the fastening effect of the fastening part 80, thus allowing the cover 14 to be free of the first element 18,
    . while remaining attached to the first element 18 by the waste collector 116. The parts that are free as an integral assembly include one or more of: the split skirt
    · From 14b, the top wall 14a, the seal support wall 28 and the seal 16. 5 To produce the device 10, modules 130, 140 and 150 are assembled in any order as desired.
    During assembly, the foam piece 176 is arranged between the top wall 14a and the sealing support wall 28. The foam piece 176 may not be an integral part of any individual module (although it is shown in figure 16 associated with third module 150 for ease of understanding). The 10 foam piece 176 is retained as the modules are assembled together.
    Also during assembly, the waste collector 116 is collapsed to its stored form, in which the waste collector 116 is firmly accommodated in the space exactly radially within the fixing part 80. It will be realized that the modular construction of the device 10 can enable a complicated and compact ostomy device 15 to be produced economically and safely.
    Each module 130, 140, 150 is relatively straightforward to manufacture as an individual item.
    The relatively complicated device is then produced by assembling the modules together. . It should also be noted that the foregoing description is illustrative of a preferred embodiment of the invention.
    Many alternatives, equivalences and improvements are within the scope and / or spirit of the claimed invention.
    权利要求:
    Claims (37)
    [1]
    1. Assembly of a controlled discharge ostomy device, CHARACTERIZED by the fact that it comprises: - (a) a controlled discharge ostomy device having one side facing the body to confront a stoma in use, the device comprising: a wall sealing support; a flexible sealing membrane sealed to the support wall to define a sealing chamber; an elastic device disposed within the sealing chamber and configured to generate, in response to compression of the elastic device on the side facing the body, an elastic return force to urge the sealing membrane in a direction towards the side facing the body to a sealing state implemented; and at least one port communicating with the sealing chamber to allow the transfer of inflation fluid with respect to the sealing chamber, said at least one port defining a fluid flow property to produce a dynamic damping characteristic for changes in the volume of the sealing chamber; and (b) a sealing shifter fixed so that it can be released to the device forming an assembly combined with it, the sealing shifter being manageable "manually to move the sealing membrane against the return force of the elastic device, to placing the sealing membrane in an unimplemented sealing state ready for the device to be fitted into a stoma, where in the unimplemented sealing state the elastic device is substantially compressed, and the sealing membrane is displaced to a substantially position non-operative, and from where, by separating the sealing shifter from the device, the sealing membrane progressively advances in the direction of the sealing state implemented by the elastic return force damped by the dynamic damping characteristic.
    [2]
    2. Assembly, according to claim 1, CHARACTERIZED by the fact that the sealing displacer is arranged on the side facing the body of the device.
    [3]
    3. Assembly, according to claim 1, CHARACTERIZED by the fact that the sealing shifter is displaceable between a first limit position accommodating the sealing membrane in a sealing state at least partially implemented, to which the elastic device pushes the sealing membrane, and a second limit position corresponding to said sealing state not implemented.
    [4]
    4. Assembly, according to claim 3, CHARACTERIZED by the fact that in the first limit position the sealing shifter has a cup shape to receive at least a part of the sealing membrane.
    [5]
    5. Assembly, according to claim 4, CHARACTERIZED by the fact that in the second limit position the sealing shifter has a selected shape of: - flat; an inverted cup shape with opposite convexity to the first limit position.
    [6]
    6. Assembly, according to claim 1, CHARACTERIZED by the fact that - the sealing shifter is made of molded plastic that (i) has a self-supporting shape, and (ii) is deformable to allow manipulation to deform the seal.
    [7]
    7. Assembly according to claim 1, CHARACTERIZED by the fact that the sealing shifter comprises at least one fastener to engage with the device to secure said sealing shifter to the device so that it can be released. 10
    [8]
    8. Assembly, according to claim 7, CHARACTERIZED by the fact that the at least one fastener fits in a periphery of the device.
    [9]
    9. Assembly, according to claim 7, CHARACTERIZED by the fact that the fastener mechanically fits with the device.
    [10]
    10. Assembly, according to claim 7, CHARACTERIZED by the fact that the device comprises an ostomy coupling element to secure the device in use in an operating position in a stoma, and in which the fastener fits - with the device in a different position than the ostomy coupling element.
    [11]
    11. Assembly, according to claim 1, CHARACTERIZED by the fact that "it comprises a protective shield of which the sealing shifter forms an integral part, the protective shield being configured to protect the side facing the device body prior to fitting the device to a stoma, and the protective shield being attached so that it can be released to said device to define said releasable fixation between said sealing displacer and the device, and to define said combined assembly.
    [12]
    12. Assembly, according to claim 11, CHARACTERIZED by the fact that the device additionally comprises a single-use frangible element that is configured to (i) allow the device to be attached to a stoma only when the frangible element of use single is intact, and (ii) being ripped in use by removing the stoma device for the first time, and the protective shield comprises a protective fixing part to secure the single-use frangible element to prevent tearing of the frangible element. single use before the first use of the device.
    [13]
    13. Assembly, according to claim 11, CHARACTERIZED by the fact that the device additionally comprises an ostomy coupling element for coupling to a body fitting, the coupling element being displaceable in relation to a cover of the coupling device a first unlocked position for a second locked position, and where the guard comprises a substantially rigid coupling element protection part to protect the state of the coupling element before the first use of the device.
    [14]
    14. Assembly, according to claim 1, CHARACTERIZED by the fact that - the device is housed within the protective shield.
    [15]
    15. Assembly of a controlled discharge ostomy device, - CHARACTERIZED by the fact that it comprises: 5 (a) a controlled discharge ostomy device having one side facing the body and comprising: a cover; a stoma seal disposed within the cover; a first coupling element for coupling to a color fitting piece to mount the device in an operating position on a stoma, the first coupling element being displaceable with respect to the cover from an unlocked position to a locked position; and (b) a protective shield to protect the body-facing side of the controlled discharge ostomy device, the protector being made of integrally molded plastic and comprising: a substantially rigid coupling element protection part to - protect the first coupling element of the device against external forces that might otherwise move the first element from the unlocked position to the locked position, and a securing profile to cooperate with the device in a location other than the first coupling element, for attach the protector to the device so that it can be released to form a combined assembly with it.
    [16]
    16. Assembly, according to claim 15, CHARACTERIZED by the fact that the protective shield additionally comprises a sealable handle 25 for a user to move the stoma seal to an unimplemented position before fitting the device to a stoma.
    [17]
    17. Assembly according to claim 15, CHARACTERIZED by the fact that: (a) the device further comprises a second element including a frangible part that is selectively breakable or tearable in use to release the device from the body fitting ; and (b) the protective shield additionally comprises a fixing part for securing and supporting the second element of the device, to prevent tearing of the frangible part before the first use. 35
    [18]
    18. Assembly of controlled discharge ostomy device, CHARACTERIZED by the fact that it comprises: (a) a controlled discharge ostomy device having a side facing the body and comprising: a stoma seal, and an element including a frangible part that is selective breakable or tearable. in use to release at least one of (i) the stoma seal from an operative position; and (ii) the device from a body fitting; and (b) a protective shield to protect the side facing the body of the controlled discharge ostomy device, the protector being made of integrally molded plastic and comprising: a fixing part for securing and supporting said device element, for 10 prevent tearing of the frangible part before the first use, and a fixation profile to cooperate with the device, to fix the protector to the device to form a combined assembly with it.
    [19]
    19. Assembly according to claim 18, CHARACTERIZED by the fact that the protective shield additionally comprises a user-manageable sealing shifter 15 to move the device sealing to an unimplemented position before fitting the device to a stoma.
    [20]
    · 20. Protective shield to protect one side facing the body of a controlled discharge ostomy device, the protector being made of integrally molded plastic, FEATURED by the fact that it comprises: 20 (i) a manageable sealer by a user to move a self-propelled seal of the device to an unimplemented position before attaching the device to a stoma, (ii) a substantially rigid coupling element protection part to protect a first element from coupling the device against external forces that might otherwise move the first element from an unlocked position to a locked position, (iii) a fixing part for securing and supporting a second element of the device, the second element including a part frangible that is breakable or selectively tearable in use to release the device, 30 (iv) a fixation profile to cooperate with a periphery of the device, to secure so that the protective shield can be released to the device to form a combined assembly with it.
    [21]
    21. Protective shield, according to claim 20, CHARACTERIZED by the fact that the sealing shifter is located in a center of the protective shield. 35
    [22]
    22. Protective shield according to claim 20, CHARACTERIZED by the fact that the protective part of the coupling element comprises a channel-shaped defense, the defense extending in a closed loop to define an endless channel.
    [23]
    23. Protective shield, according to claim 20, CHARACTERIZED by fa-. that the protective part of the coupling element extends around the sealing displacer.
    [24]
    . 24. Protective shield according to claim 23, CHARACTERIZED by the fact that the sealing displacer and the coupling element protection part come together in a foldable interface part.
    [25]
    25. Protective shield according to claim 20, CHARACTERIZED by the fact that the fixing part comprises a step-shaped recess extending around a closed loop path. 10
    [26]
    26. Protective shield, according to claim 20, CHARACTERIZED by the fact that the fixation profile comprises at least one recess flap.
    [27]
    27. Controlled discharge ostomy device for attachment to the body side coupling element of a body fitting, the device FEATURED by the fact that it comprises: 15 a stoma seal to seal against a stoma in use; a first element in the form of a closed loop and including a coupling formation, the coupling formation being deflectable to allow pressure fitting with said body side coupling element when pressed in a first direction; 20 a second element having at least one fixing part, wherein the first and second elements are generally relatively displaceable parallel to said first direction, from a first unlocked position in which the fixing part does not substantially trap the formation of coupling against said deflection, for a second locked position to hold the formation of coupling against said deflection, in which the device additionally comprises: cooperation retainers in the first and second elements and configured to: (i) retain said first and second elements initially in said unlocked position with a first holding resistance until pressure is applied to cause relative displacement of the first and second elements to the locked position; and (ii) retaining said first and second elements in said locked position with a second retention resistor; and the device additionally comprising a single use frangible part of the second element, to obstruct fixation of the device to the body side coupling element 35 more than once, the frangible part extending through said fixing part, and configured in such a way that, to release the device, the frangible part is torn, thus removing the fixing effect of the fixing part.
    [28]
    28. Device according to claim 27, CHARACTERIZED by the fact that said second retention resistor is greater than said first retention resistor.
    [29]
    29. Controlled discharge ostomy device, CHARACTERIZED by the fact that. 5 comprising: a first integrated module comprising: an upper wall; a collapsible collector hanging from the top wall at a first open end of the collector; and a first closed loop element hanging from the collapsible collector at a second open end of the collector; the first module defining a first chamber; a second integrated module comprising: a second element including a fastening part to cooperate with the coupling formation of the first element to secure the deflection coupling formation outwardly, the second element including a frangible part to release the fastening effect when the frangible part is broken; and a third integrated module comprising: a sealing support wall and a sealing membrane hanging from the sealing support wall, the sealing support wall and the sealing membrane defining a sealing chamber in which a compressible device is arranged. elasticly; the third module being located in "an operating position at least partially within the first chamber of the first module with the sealing support wall arranged close to the upper wall; where the first, second and third modules are fixable to each other for form a device assembly.
    [30]
    30. Device according to claim 29, CHARACTERIZED by the fact that the second element is generally closed-loop in shape, and defines a skirt profile around the first module.
    [31]
    31. Device according to claim 30, CHARACTERIZED by the fact that at least a part of the upper wall of the first module is received in a respective opening of the second element.
    [32]
    32. Device according to claim 29, CHARACTERIZED by the fact that the sealing support wall carries at least one door to control fluid flow into and / or out of the sealing chamber.
    [33]
    33. Device, according to claim 32, CHARACTERIZED by the fact that at least one door comprises a chimney that extends through an opening in the upper wall, and at least a second door communicates with a space 35 between the sealing support wall and the upper wall.
    [34]
    34. Device according to claim 29, CHARACTERIZED by the fact that the upper wall of the first module and the sealing support wall of the third module together define a flat ventilation channel communicating with the first. chamber around at least a part of the periphery of the sealing support wall.
    [35]
    35. The device according to claim 34, CHARACTERIZED by the fact that - additionally comprising at least one porous element for flatus arranged in the flat ventilation channel, the at least one porous element for flatus being at least one selected from one deodorizing filter and a phase separator.
    [36]
    36. Device according to claim 29, CHARACTERIZED by the fact that it additionally comprises at least one selected from: (i) a coupling to retain the third module in the operating position with respect to 10 to the first module; (ii) a coupling provided between the second module and at least one of the first and third modules, to retain the modules in the assembled condition.
    [37]
    37. Method of preparing a controlled discharge ostomy device to fit a stoma, the device having one side facing the body facing a stoma in use, and the device comprising: a sealing support wall; · A flexible sealing membrane sealed to the support wall to define a sealing chamber; an elastic device arranged inside the sealing chamber and configured to generate, in response to compression of the elastic device on the side facing the body, an elastic return force to propel the sealing membrane in a direction facing the side facing the body for an implemented sealing state; and at least one port communicating with the sealing chamber to allow the transfer of inflation fluid with respect to the sealing chamber, said at least one port defining a fluid flow property to produce a dynamic damping characteristic for changes in the volume of the sealing chamber; the method CHARACTERIZED by the fact that it comprises the step of displacing the seal against the return force of the elastic device, to place the seal membrane in an unimplemented seal state ready for the device to be fitted 30 in a stoma, in that in the unimplemented sealing state the elastic device is substantially compressed, and the sealing membrane is displaced to a substantially non-operative position, from which the sealing membrane progressively advances in the direction of the sealing state implemented by the force of elastic return dampened by the dynamic damping characteristic.
    类似技术:
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    同族专利:
    公开号 | 公开日
    US8845606B2|2014-09-30|
    AU2016225932A1|2016-09-29|
    EP2475340A4|2017-08-09|
    JP2013504380A|2013-02-07|
    KR20180099932A|2018-09-05|
    US9943436B2|2018-04-17|
    AU2010292291B2|2016-06-09|
    IL218556D0|2012-05-31|
    CA2984082A1|2011-03-17|
    CA2772527A1|2011-03-17|
    US20120179124A1|2012-07-12|
    KR101925739B1|2018-12-05|
    CN102596114A|2012-07-18|
    US20180235802A1|2018-08-23|
    KR20170034448A|2017-03-28|
    CN102596114B|2014-10-22|
    US11076978B2|2021-08-03|
    EP2475340B1|2019-11-13|
    CA2984082C|2019-07-30|
    CA2772527C|2017-12-12|
    US20140364823A1|2014-12-11|
    RU2012114098A|2013-10-20|
    KR101765350B1|2017-08-07|
    AU2010292291A1|2012-04-19|
    AU2016225932B2|2018-11-08|
    KR20120099642A|2012-09-11|
    WO2011031822A1|2011-03-17|
    JP5738866B2|2015-06-24|
    MX2012002720A|2012-04-19|
    EP2475340A1|2012-07-18|
    IN2012DN01988A|2015-07-24|
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    法律状态:
    2020-09-29| B11A| Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing|
    2020-12-08| B11Y| Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]|
    2021-11-23| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    US27635209P| true| 2009-09-11|2009-09-11|
    US61/276,352|2009-09-11|
    PCT/US2010/048211|WO2011031822A1|2009-09-11|2010-09-09|Controlled discharge ostomy appliance and shield therefor|
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