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  • 专利说明
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    • 专利摘要:
    The present invention discloses a needle tip shielding device for protection of a needle tip of a needle. The needle tip shielding device comprises a fixing arrangement having a proximal side and a distal side, which fixing arrangement is comprising at least one engaging element, which engaging element is resilient and resiliency striving from a compressed state towards an expanded state, in which expanded state the shortest distance between a point of said engaging element and the central axis of said needle tip shielding device is longer than the shortest distance between said central axis and any other point of said needle tip shielding device, A catheter instrument comprising the needle tip shielding device and a method for manufacturing is also disclosed.
    公开号:SE1250423A1
    申请号:SE1250423
    申请日:2012-04-27
    公开日:2013-10-28
    发明作者:Lennart Holm；Robert Domonkos
    申请人:Vigmed Ab；
    IPC主号:
    专利说明:

    TECHNICAL FIELD The present invention relates to a squeegee tip protection device and a detachable coupling mounting device, in particular a detachable coupling to a catheter hub of a catheter instrument.
    BACKGROUND The clinical use of a pointed hollow needle mounted inside an elastic catheter is a choice in the medical field for the insertion of a catheter. In such a medical instrument, the catheter tube is placed olt around the needle in such a way as to allow the needle to slide and slide along the length of the catheter tube. Before use, the tip of the needle is slightly projecting through the opening of the catheter tube to allow simple penetration conditions through the skin. Upon puncture of the skin and insertion of the needle, the distal spirit of the catheter tube is simultaneously brought into place within the desired body cavity of the patient, such as the inside of a blood vessel, for example a yen. The squeegee has then fulfilled its task of assisting the insertion catheter and is retracted by being pulled backwards through the catheter. Upon release of the squeegee, the catheter is in its intended mode of operation which extends over a long period of time and includes, for example, periodic administration or infusion of fluids or medications in liquid form, collection of blood samples and the like.
    An unprotected release needle, however, poses a serious throat risk due to the fact that it may be contaminated with, for example, infectious agents such as Ilan & frail patient's blood or other body fluids, in combination with the needle tip's inherent ability to penetrate skin. Consequently, the medical staff handling the open needle may acquire the corresponding disease, such as HIV or hepatitis, if it is accidentally brought into contact with the skin. In order to circumvent or alleviate the throat risks associated with, among other things, such an open needle, great efforts have been made to develop needle tip protection with a special focus on automatic variants of a type referred to as "idiotic things".
    The automatic needle tip protection of catheter instruments used for the insertion of a catheter tube requires devices for immobilizing the needle tip protection relative to the catheter hub during the retraction of the needle from the catheter through the catheter hub. When the needle tip guard is disengaged from the catheter hub, in its state where it protects the needle tip, these immobilization devices are deactivated, whereby the needle tip guard assembly can be removed from the catheter hub-catheter assembly. WO2011129753 describes a teddy bear tip cover which is partially cut through with slots to allow compression of the cover when placed in the teddy bear coupling. The protection is thus releasably held in the nal hub by a normal force in combination with inherent friction. The slits can extend substantially in the longitudinal direction of the cover, from the rear side to the front side.
    Disadvantages of such a device for immobilization include a relatively large variation in it had to be required to disconnect the protection from the catheter hub, which may compromise its intended function and safety. In this case, the large variability is mainly due to the combination of a relatively large connecting surface area between the cover and the catheter hub and the production-related variability of the inner diameter of the catheter hub and the outer diameter of the cover.
    US6616630 B1 discloses a safety IV catheter which includes an elastic spring clip for protection. When the squeegee is in the forward position, the presence of the squeegee forces parts of the spring clip into a position where its parts laser towards the inside of the catheter hub, whereby the movement of the spring clip relative to the catheter hub is prevented. When the squeegee is pulled back to a point where the tip passes these parts, the spring clip snaps into a position in which it blocks access to the squeegee tip. At the same time, the part of the spring clip that previously loads to the inside of the catheter hub snaps out of its position, whereby movement of the spring clip relative to the catheter hub can occur.
    For various reasons, including practical, economical and technical shells, the spring clip described above, and similar marketed variants, are today out of necessity made of metal and with catheter hubs of a plastic material. Disadvantages of a combination of these materials in this application include the release of, for example, microscopic plastic chips and metal particles from the metal spring clip scraping against the inside of the plastic catheter hub when the former is ejected from the latter upon retraction of the squeegee. These chips and particles can be easily flushed into the blood of a patient during normal use of the corresponding catheter, and thus pose a serious throat risk to the same.
    GB2451153A frail Poly Medicure Ltd describes a protection which can receive a squeegee between opposite shafts attached to its hash and which is capable of being affected by the squeegee. The caftans can move between an expanded layer in which they interact with an obstacle inside the catheter hub. The caftans allow relative movement of the squeegee towards the base when it is expanded, and can close around a squeegee tip as it passes the caftans, and are released from the obstacle in the catheter hub when collapsed.
    US5135504A describes a protection which may be made of a plastic material. The presence of the squeegee hails the spirit of protection flattened out and thus remains inside the catheter hub through, for example, a hallarring which is held tat dari until the squeegee pulls back from the catheter. The function of the needle tip guard described in GB2451153A and US5135504A relies on the presence of one or more obstacles, such as protrusions or grooves, on the inside of the catheter hub to hold the guards in place until the needle is retracted from the coupling. Disadvantages of the need for such barriers include the need to use specially designed catheter hubs which are more expensive and difficult to manufacture in comparison with simpler catheter hubs.
    Salunda is a needle tip protection device with improved device for reversible spatial immobilization of the same relative to the catheter hub desired.
    SUMMARY An object of the present invention, taking into account the disadvantages mentioned above, is to provide a needle tip protection device which can be connected in a detachable manner to a standard catheter hub.
    Another object of the present invention is to provide a needle tip protection device which can be manufactured at a low cost.
    Another object of the present invention is to provide a needle tip protection device which can be manufactured at a low cost and which is connected on a removable salt to a standard catheter hub.
    Another object of the present invention is to provide a needle tip protection device which can be connected in a releasable manner to a catheter hub, with a slight variation in the force required for release over a series of individual devices.
    These and other objects, which will become apparent from the following description, have now been achieved by a needle tip protection device for protecting the tip of a squeegee, which includes a mounting device having a proximal side and a distal side, the mounting device comprising at least one coupling element, where the coupling element is elastic and fluttering strives to give frail a compressed state to an expanded state, in which expanded state the shortest distance between a point of said coupling element and the central axis of said needle tip protection device is longer than the shortest distance between said central axis and any other point of said needle tip protection device.
    Further features of the invention and its embodiments are set out in the appended claims.
    BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects, features and advantages of which the invention is capable of will be apparent and illustrated by the following description of non-limiting embodiments of the present invention, taken in conjunction with the accompanying drawings, in which 4 Figs. A and 1B are side views of a needle tip protection device according to the invention, with mounting device comprising baked stretching coupling elements, each with a projection for contact with the inside of a catheter hub, and with baked stretching first stabilizing elements and forward stretching resilient arms, according to a embodiment; Fig. 2 is a perspective view from the rear side of the squeegee tip guard according to Fig. 1, showing a mounting device with a hollow interior and a centrally positioned second stabilizing element with a sloping surface leading to a central hall, for the squeegee shaft to pass genome, according to one embodiment; Fig. 3 is a view from the rear of the squeegee tip guard of Figs. 1 and 2, according to one embodiment; Figs. 4A and 4B are a complete side view (A) and an enlarged side view (B) of a needle tip protection device with a coupling member having a protrusion having inclined proximal and distal surfaces mounted in a catheter hub, where the protrusion makes an impression in the catheter hub, according to one embodiment; Figs. 5A, 5B and 5C are enlarged side views of the needle tip protection device with a coupling member having a projection with inclined surfaces at its proximal end and at its distal end (A), only at its distal end (B) and only at its proximal spirit (C), according to an embodiment; Fig. 6 is the complete view of the squeegee tip protection device of Fig. 5A, according to one embodiment; Figs. 7A and 7B are perspective views from the back / side of a part of a needle tip protection device showing a coupling element in expanded state (A) and in compressed state (B), according to an embodiment; Fig. 8 is a perspective view of the back / side of a needle tip protection device with three coupling elements, three first stabilizing elements and a second stabilizing element comprising a circular hall, mounted in a catheter hub, according to an embodiment; Figs. 9A and 9B are side views of a squeegee tip guard device according to the invention, showing a squeegee comprising a restrictor extending through a second stabilizing element with its tip past the front part of two resilient arms (A), and in a rear bearing wherein the restrictor further prevents movement backward relative to the device and wherein the tip is protected from inadvertent contact with the resilient arms, according to one embodiment; and Fig. is a side view of a catheter instrument of the invention in assembled condition, showing a needle tip protection device with two resilient arms and a mounting device within a catheter hub, a squeegee with a connecting device extending through the needle tip guard, the catheter hub and a catheter , according to one embodiment.
    DETAILED DESCRIPTION OF THE EMBODIMENTS Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, for the purpose of those skilled in the art to practice the invention. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this description will be thorough and complete, and fully convey the scope of the invention to those skilled in the art. The embodiments do not limit the invention, but the invention is limited only by the appended claims. Furthermore, the terminology used in the detailed description of the particular embodiments illustrated by the accompanying drawings is not intended to be limiting of the invention.
    Embodiments of the present invention will now be described below with reference to Figures 1 to 10. References to various parts of the drawings are shown by numerals according to the table below. number part 500Monteringsanordning 501Proximala side 502Distala side 511Forsta stabilizing elements 512Andra stabilizing elements 521Forsta interior 522Andra interior 531Forsta outer surface 532Andra outer surface 533Tredje outer surface 5Kopplingselement 541Utsprang 600Fjadrande arm 7Nal 711Nalspets 712Begransare 713Anslutningsanordning 8Kateterhub 8Kateter 1000Skyddsanordning for needle tip A catheter instrument according to the present invention essentially comprises a needle 710 with a needle tip 711 at the distal end thereof, a needle tip protection device 1000 6 comprising a new and inventive mounting device 500, and a catheter hub 810 with a catheter 820 extending therefrom.
    In the ready layer, i.e. in assembled condition, and before its use for the insertion of a catheter 820, the following features of catheter instruments are valid: (i) The taper tip protection device 1000, in whole or at least a part thereof, is in the inner space of the catheter hub 810. (ii) The mien 710 may but need not be attached to the connector device 713 at the proximal end thereof, which connector device 713 may and is usually disassembled and connected to the proximal side of the catheter hub 810. (iii) The mien 710 extends in the longitudinal direction , i.e. in a direction from the proximal spirit to the distal spirit of said catheter instrument, it may substantially coincide with the central axis of the needle tip protection device 1000, the catheter hub 810 and the catheter 820. (iv) The needle tip 711 is unprotected and projecting past the distal the catheter 820, wherein the penetration of skin and the placement of the distal spirit of catheter 820 in a body cavity is possible. iggjord. (v) One or more elastic coupling members 540, which may typically be rectangular or rod-shaped and extend substantially parallel to the central axis and from the proximal side 501 or distal side 502 of the mounting device 500, are in contact with the inner surface of the catheter hub 810 , wherein the protective device for the needle tip 1000 is demountable. (vi) The shaft of the squeegee 710 may be slidably engaged with the squeegee tip guard device, such as a resilient arm 600 or other such prior art luminaire devices, which are thereby deactivated from protecting the squeegee tip 711.
    When in the ready layer, i.e. in the assembled condition, the catheter instrument may be used by a user, such as a scooter or other medical personnel, to insert the catheter 820 in accordance with the following sequential steps: (i) Penetration of the skin of a patient using the needle tip 711 , followed by insertion of the catheter 820 said that its distal opening is located in the desired body cavity, such as the inside of a yen. (ii) Attaching the catheter hub 810 to the skin of the patient on a set electron in the art, such as with medical tape or the like. (iii) Coupling from the connecting device 713, followed by retraction of the squeegee 710 by pulling the squeegee 710 backward until the squeegee tip 1000 guard is disconnected from the catheter hub 810, wherein the squeegee tip guard, such as a resilient arm 600 or other devices of choice squeegee tip protection device 1000 protects squeegee tip 711.
    After disconnecting the needle tip protection device 1000 from the catheter hub 810, the catheter instrument is in a disassembled condition. In the disassembled state, the squeegee tip protection device 1000 protects the squeegee tip 711 from accidental contact. Both the needle 710 and the needle tip protector 1000 are thus separated from both the catheter hub 87 and the catheter 820. The former unit is usually discarded securely, while the latter is usually used to administer drugs or to take a blood sample from a patient.
    According to one embodiment, the catheter instrument may be provided with connection device 713. Connection device 713 may be of standard type, such as Luer-Lok®, Luer-Slip® and various types of bayonet sockets or the like which are electronics in the art, for connection to catheter hub 810. The connecting device 713 may usually comprise further means for connecting the distal spirit of, for example, a syringe to the proximal spirit thereof. Connecting device 713 may be mechanically and hermetically fixed as is known in the art, as cast or glued, around the rear end of the squeegee 710, thereby allowing fluid passage in both directions, from the rear end of the squeegee 710 to and through the squeegee tip 711 of the squeegee 710. Preferably, the connection device 713 is vented so that no gas or fluid, such as blood or any other body fluid, can pass.
    According to one embodiment, the catheter hub 810 may be provided with additional devices and the like to facilitate its placement and optimize its use, such as valiant in the art. For example, it may be provided with valves, gaskets, fasteners, blood residue drying devices of the squeegee 710, and the like.
    According to one embodiment, the squeegee 710 may be provided with a restrictor 712, which prevents it from being retracted beyond a certain point, i.e. in a direction frail the distal spirit towards the proximal spirit, relative to the protective device for the squeegee tip 1000. Thus, the squeegee 712 allows movement baked by the squeegee 710 until a squeegee tip guard device, such as a resilient arm 600, protects the squeegee tip 711. Upon further retraction, the squeegee 710 interacts with the squeegee tip guard 1000, or any part thereof such as a second stabilizing member 512, using the limiter 712. Backward movement even longer baked by the squeegee 710 with a lazy force relative to the catheter hub 810, results in a conversion frail mounted state to disassembled state. The restrictor 712 may be, for example, a hollow or radially expanding region of the shaft of the squeegee 710, or the like which increases the effective diameter of the shaft at an area so that it cannot pass, for example, a slide through which the rest of the shaft may pass. Further examples of such a limiter 712 include a butt weld, which may be water away from the point of contact of, for example, the resilient arm 600 on the needle 710. Examples of other possible expansion regions 305 include a crease or other protruding distortion which is optional in the art.
    The needle tip protection device 1000 of the present invention substantially comprises a mounting device 500 having a proximal side 501 and a distal side 502. The mounting device 500 comprises substantially at least one coupling element 540, such as two or three coupling elements 540, which may be evenly distributed around the outer periphery of mounting device 500 for obtaining a stable and uniform connection to the inside of the catheter hub 810. Mounting device 500 may also comprise four or more, such as four, six, seven or eight coupling elements 540, preferably evenly distributed around the outer periphery of the mounting device 500. Each coupling element 540 can be elastic, and thus resilient struts a compressed state against an expanded state. In the expanded state, the shortest distance between an outer point of a coupling element 540 and the central axis of the needle tip protection device 1000 is longer than the shortest distance between the central axis and any other point of the needle tip protection device 1000. In this way, the protection device is for the needle tip 1000, the hall is in place, i.e., prevented from longitudinal movement relative to the catheter hub 810, through a contact point or contact surface between the inside of the catheter hub 810 and an outer point or surface of each coupling member 540.
    According to one embodiment, the mounting device 500 may be shaped as a circular door or warp cut cone or cylinder. A circular outer surface is particularly preferred because most standard catheter hubs 810 have a circular interior surface on which mounting device 500 can be mounted in the mounted condition. The proximal side 501 and the distal side 502 may be circular and have the same diameter in the range of 3 to 6 mm, preferably 3.9 to 4.3 mm, and even more preferably 4.1 to 4.15 mm, to fit de fiesta standard catheter hubs 810.
    Needle tip protection devices are herein exemplified by one or more protective resilient arms 600. Other needle tip protection devices are, however, well known in the art and may be applied to the needle tip protection device 1000 of the invention. A resilient arm 600, having the protective function or condition of a resting or active needle tip 711, may extend from the distal side of the mounting device 500. The resilient arm 600 may have a relaxed state, i.e., a resting state in which it, or any part, or extending the drive shaft, coincides with the central axis of the squeegee 710. In the disassembled condition, the squeegee tip 711 may then be in direct contact with, or at least project toward, the resilient arm 600, thereby being protected by the same. The resilient arm 600 usually struts against its resting edge at all times, but can be prevented from reaching it by, for example, the shaft of the needle 710.
    According to one embodiment, the needle tip protection device 1000 may include a resilient arm 600 adapted to protect or clamp the needle tip 711. The resilient arm 600 may extend from the distal side of the mounting device 500, e.g., in the same forward direction as the longitudinal direction. of the squeegee 710 in assembled condition. The resilient arm 600 may have a rest condition, from which it may be forced to give free passage in an axial direction of the mounting device 500. The shaft of the squeegee 710 may, for example, have contact with the resilient arm 600 to give free passage, the squeegee 710 can be moved back and forth in a longitudinal direction relative to the protective device for the teddy bear tip 1000. In the resting state, or in a state between the resting state and the state in which it has been forced out of the resting state by e.g. the shaft of the squeegee 710, any straight imaginary line protruding in the longitudinal direction of the axial direction of the mounting device 500 through a passage between the proximal side 501 and the distal side 502 may coincide with the resilient arm 600.
    According to one embodiment, the squeegee tip protection device 1000 may comprise a resilient arm 600, adapted to protect or clamp the squeegee tip 711, and the squeegee 710 may be provided with a limiter 712, to prevent movement backwards relative to the squeegee tip 1000 protection device beyond a certain point. When a squeegee 710 has been retracted to a point where the pivot 712 reaches the point of contact of the resilient arm 600, the latter may bend slightly to add easy passage of the former at a slight fling of the retraction force. If the limiter 712 is of a particular type and is coated on the needle 710 so that the resilient arm does not come into contact with any area of increased effective diameter, the resilient arm need not bend slightly. Further retraction of the squeegee 710, to a point where the squeegee tip 711 passes the point of contact of the resilient arm 600, results in the former no longer being in a forward position and the latter straining against its normal resting position, which is such that part of the the resilient arm 600, or an extension thereof, is in front of the squeegee tip 711. The rest position of the resilient arm 600 is such that the squeegee tip 711 may, preferably, always extend, in the longitudinal direction of the squeegee 710, up to a point on the surface of the spring the arm 600 regardless of the degree of rotation of the squeegee 710 about its longitudinal axis. The squeegee tip 103 is thus clamped and protected by the resilient arm 600. When retracted beyond this point, the squeegee 710 cannot be pushed in the longitudinal direction again without being obstructed by the resilient arm 600, or an extension thereof. Thus, if a user attempts to push the squeegee 710 forward, the squeegee tip 711 may penetrate slightly into a resilient arm 600 of plastic or polymer. Any longer retraction of the squeegee 710, to the point where the crimper 712 reaches the mounting device 500, or flake portion thereof as a second stabilizing member 512 comprising a slat extending longitudinally adapted to surround the shaft of the squeegee 710, resulting in the corpse 710 interacts with, i.e. gets stuck in, the needle tip guard 1000, such as in the tail of the second stabilizing member 512. Further increase in the retraction force of the needle 710 results in the needle tip guard 1000 being disconnected from the catheter hub 810, i.e. in the transition frail the assembled condition to the disassembled condition. The squeegee 710 is thus released from the catheter hub 810 together with the squeegee tip protection device 1000, which effectively clamps the squeegee tip 711 and protects a user from accidental contact with it. The force required to disconnect the needle tip protection device 1000 from the catheter hub 810 depends mainly on the design of the mounting device 500. For example, an increase in the number of coupling elements 540 thereof increases this force. An increase in the elastic force against an expanded state of these, or an increase in the friction of the contact surface or against the inside of the catheter hub 810, also increases this force. One skilled in the art is aware of how the mounting device 500 may be designed by changing properties of its coupling member 540 to provide a desired force for transition from the mounted state to the disassembled state. Preferably, this force is such that the needle tip protection device 1000 is not disconnected from the catheter hub 810 when the needle 710 is retracted until the restrictor 712 reaches the mounting device 500. However, the needle tip protection device 1000 is preferably easily disconnected when the restrictor 712 is attached to the mounting device 500. , for example, a mild jerk back. When the squeegee tip 1010 and the needle tip guard 1000 have been released from the catheter hub 810, or when the squeegee tip guard 1000 is mounted within the catheter hub 810 and the squeegee tip 711 is clamped by the resilient arm 600, or an extension thereof, the squeegee 710 can be pushed forward so that the strainer 712 is moved forward a distance ph 0 to 2 mm, such as 0 to 0.5 mm, from the leading edge of the mounting device 500, below which the needle tip 711 can slide on the surface of the resilient arm 600 until it coincides with e.g. horns thereof or penetrates something dari.
    According to one embodiment, the protection device for teddy bear tip 1000 may comprise one. two, three or more coupling elements 540, and at least one adjacent first inner space 521. The coupling elements 540 may be elastic, whereby the resilient struts from a compressed state to an expanded state. In the assembled state, the coupling elements reside in a state between the compressed and the expanded state, whereby they are in contact with the inner surface of the catheter hub 810 with a force. The protection device for teddy bear tip 1000 is thereby the hallway therein, i.e. a constant spatial relationship between the protection device for teddy bear tip 1000 and the catheter hub 810 is provided. A first inner space 521 may be located between the central axis of the needle tip protection device 1000 and the coupling member 540. A portion of the outer surface of any first inner space 521 is substantially adjacent to the corresponding coupling member 540. Relative movement of the coupling member 540 from the expanded state to the compressed state is thereby made possible. A plurality of coupling elements 540 may be evenly distributed over the periphery of the mounting device 500, each coupling element 540 being in contact with the inner surface of the catheter hub 810 with substantially the same had. Each coupling member 540 adapted so that it can be moved in a direction perpendicular to the axial stretching of the needle tip protection device 1000, from the compressed to the expanded state or vice versa, unless prevented by the inner surface of the catheter hub 810 from reaching it completely. expanded state. An adjacent first inner space 521 enables the coupling member 540 to reach a compressed state without any mechanical obstruction in any part of the needle tip protection device 1000. Thus, the needle tip protection device 1000 may be mounted in the catheter hub 810 when all of its coupling member 540 is in a compressed state or compressed condition. near the compressed state, followed by an expansion to the expanded state therein to contact the inner surface of the catheter hub 810 with a force. A plurality of coupling elements 540 may have a common first inner space 521 or separate inner spaces 521.
    According to one embodiment, the mounting device 500 for the squeegee tip protection device 1000 may be hollow. Thus, the coupling elements 540 may have a common first inner space 521 represented by this hollow portion. Advantages of such a durable mounting device 500 include reduced production cost due to a smaller need for material compared to a needle tip protection device 1000 with a tighter mounting device 500. When provided with one or more first stabilizing elements 511 and a second stabilizing element 512 , the mounting device 500 may be provided with one or more reinforcing elements, such as the selection edge within the technical field, which connects the former to the latter. Such reinforcing elements will provide the first stabilizing element 511 with further resistance to forces from, for example, the catheter hub 810. Thus, the first stabilizing element 511 need not be as thick as in the case without such reinforcing elements.
    According to one embodiment, one or more, preferably all, of any of the coupling elements 540 may comprise a projection 541 projecting in a direction substantially perpendicular to the central axis of the taper tip protection device 1000. In the mounted condition, a third outer surface 533 at this, 541 protrudes into contact with the inner surface of the catheter hub 810. The third outer surface 533 may be provided with means for increasing the friction against the catheter hub 810, whereby the protection device for the needle tip 1000 is held more securely therein. Examples of such devices include grooves or any other suitable deviation from a flat surface. As a result, the outer surface 533 can be, for example, etched or blasted.
    According to one embodiment, the projection 541 may be circular or elliptical. The point of contact or surface of the catheter hub 810 is preferably located at or near the center of such a circular or elliptical projection. The projection 541 may have at least one sloping spirit to allow the needle tip protection device 1000 to be conveniently mounted in, and / or retracted from, the catheter hub 810. For example, the spirit as dr 12 may be mounted in the same direction as the proximal side. 501, be sloping to allow smooth retraction. The spirit, which is water in the same direction as the distal side 502, may be sloping to allow easy mounting of the needle tip protection device 1000 from the proximal side of the catheter hub 810.
    According to one embodiment, the mounting device 500 may comprise at least one, such as, for example, two or preferably three, first stabilizing elements 511. Sac: Lana first stabilizing elements 511 may usually be shaped as curved discs, with a thickness of 0.5 to 2 mm, about 0.8 mm, with a first outer surface 531 and a hook adapted to fit the adjacent inner surface of the catheter hub 810 in the assembled condition. They may be thicker than the corresponding coupling elements 540, since they can preferably not be bent as easily by an externally applied force. Their longitudinal extent may be substantially parallel to the central axis. They may extend from the proximal side 501 or the distal side 502 of the mounting device 500. Advantages of such first stabilizing elements 511 include minimizing the risk of the needle tip protection device 1000 wobbling in the catheter hub 810, i.e. minimizing the risk of movement resulting in the central axis of the needle tip protection device 1000 does not coincide with the central axis of the catheter hub 810. Additional advantages include minimizing the risk of incorrect mounting of the needle tip protection device 1000 in the catheter hub 810 in such a manner that the central axis of the needle tip protection device 1000 does not coincide with the central axis of the catheter hub 810. Such wobbling or improper mounting may jeopardize the intended function of the coupling member 540. Thus, the first stabilizing members 511 stabilize the needle tip protector 1000 in the catheter hub 810 by cooperating with the inner surface of the catheter hub 810. through the central axis of the needle tip protection device 1000 is kept in a substantially coincident relationship with the central axis of the catheter hub 810, in particular a tubular catheter hub 810.
    According to one embodiment, the needle tip protection device 1000 includes a second stabilizing member 512. The second stabilizing member 512 may be located at the center of the mounting device 500 and provided with a passage from the proximal side 501 to the distal side 502. It stabilizes the longitudinal movement of the needle 710, i.e. in a direction along the central axis of the needle tip protection device 1000 and relatively the same. The central axis of the squeegee 710 is thus always substantially parallel to the central axis of the squeegee tip protection device 1000. The passage from the proximal side 501 to the distal side 502 has a second inner space 522, which is covered by the inner surface of the second stabilizing member 512, through which the squeegee 710 extends and moves in a longitudinal direction. The inner surface is thus slidably engaged with the inner surface of the second stabilizing element 512. The inner surface may comprise one or more contact surfaces or one or more contact points which are in contact with the shaft of the squeegee 710. A suitable second inner space 522 may be a circular slide with a diameter equal to or slightly less than the outer diameter of the 710 shaft of the squeegee. Preferably, the contact surface of the tail is arranged so that a maximum contact with the shaft of the squeegee is achieved without preventing the squeegee 710 from sliding through the guard tip for the squeegee tip 1000. The stretching of such a haul in the longitudinal direction may be sufficiently stabilized longitudinally relative the protective device for teddy bear tip 1000. A suitable combination of the stretching of such a hall in the longitudinal direction and its diameter is the choice of the person skilled in the art.
    According to one embodiment, the proximal side of the second stabilizing member 501 may be provided with a recess. Since the mouth of the passage, such as a hall, is provided at the bottom of the depression. The depression then preferably has sloping surfaces, such as that a cone-shaped depression is formed. The depression of this soft on the proximal side of the second stabilizing element 512 can guide the needle 710 through the passage during mounting of the needle tip protection device 1000 on the needle 710.
    According to one embodiment, the distal side of the second stabilizing element 501 may be provided with a recess. Then the mouth of the passage, for example a hall, is arranged at the bottom of the depression. The depression then preferably has inclined surfaces, such as that a cone-shaped depression is formed. This type of recess on the distal side of the second stabilizing element 512 can guide the needle 710 through the passage during mounting of the needle tip protection device 1000 on the needle 710.
    According to one embodiment, the distal side 502 may be provided with a cone-shaped elevation which forms part of the second stabilizing element 512, through which the passage from the proximal side 501 to the distal side 502, for example a hall, extends. The effective length of the passage is thereby increased which, for example, allows better control of the needle 710 without having to increase the area of the outer surface of the mounting device 500, which is adjacent to the inner surface of the catheter hub 810. In addition, the conical surface may be provided with devices is known in the art, such as a circular scraper, which removes remnants of, for example, blood from the needle 710 when it is withdrawn.
    According to one embodiment, the protection device for teddy bear tip 1000 may comprise at least one, such as e.g. three, first stabilizing elements 511, at least one, such as e.g. three, coupling element 540, and a second stabilizing element 512. The latter may comprise a longitudinal hall through which the squeegee 710 may extend. The combination of three first stabilizing elements 511 and three coupling elements 540, all of which are continuously and evenly distributed, provides a particularly advantageous protection device for the needle tip 1000 due to their direct or indirect interaction with each other in assembled condition. This combination is furthermore a preferred combination which requires the least number of each of the first stabilizing elements 511 and coupling elements 540.
    The various parts of the mounting device 500, their function and interaction with each other and other parts of the catheter instrument, are described above and are illustrated in the accompanying Figures. The following is an alternative description of the mounting device 500 for the person skilled in the art to understand how the terminology used can be interpreted for the practical implementation of the invention.
    According to one embodiment, the mounting device 500 may comprise a circular disc having a front side corresponding to the distal side 502, and having a rear side facing in the same direction as the proximal side 501. The circular disc comprises a central cylinder or a cone-shaped object, corresponding to the second stabilizing element 512, which extends in a longitudinal direction, i.e. in a direction perpendicular to the plane of the circular disc. The central cylinder or cone-shaped object has a distal spirit, which may be located at or in front of the front of the circular disc, and a proximal spirit, which may be located at or proximal to the rear side of the circular disc. The central cylinder or cone-shaped object may comprise a central circular hall or other lamp space with a central axis extending in the longitudinal direction from the distal spirit towards the proximal spirit thereof, to allow forward and reciprocating movement along this central axis of a squeegee 710 by sliding its shaft. At least one, such as both, of the proximal spirit and the distal spirit of the central cylinder or cone-shaped object preferably extends beyond the rear side and the front side, respectively, of the circular disk. The standing area of the central circular hail is thus unmarked and the support of the sliding needle 710 is improved in comparison with, in the case of, for example, a haul at the center of the circular disc. Elastic flaps, corresponding to the coupling elements 540, may extend backwards in a longitudinal direction from the rear of the circular disc at or near the periphery thereof, i.e. at a point at or near the circumference of the circular disc. The outer surface of the flaps, i.e. the surface facing away from the central axis and radially outwards from the circular SKI VAN, may substantially coincide with the circular area defined by the longitudinal projection of the circumference of the circular disc. The longitudinal projection of the circumference of the circular disk may be in the form of a flange. extending parallel to the central axis of the circular tail. The elastic flaps and the flange from which the elastic flaps have been cut out can extend outwards or food. Once the elastic flaps and flange extend proximally, the insertion of the needle tip protection device 1000 into the catheter hub 810 may be omitted, and when the elastic flaps and flange extend distally, the retraction of the needle tip protection device 1000 from the catheter hub 810 may be omitted. Each of these tabs may be provided with an extension corresponding to the projection 541 located at the outer surface thereof. This extension extends radially outwards from the flange. Thus, this extension can extend beyond this circular area in a direction perpendicular to the central axis. The elastic flaps can be forced against a compressed state, for example through the inside of a catheter hub 810, so that the outermost point of a extension at its outer surface substantially coincides with the circular area defined by the longitudinal projection of the circumference of the circular disc. in this way a stabilized fit between the needle tip protection device 1000 and the catheter hub can be obtained, as the elastic flaps, with radial extensions, can compensate for irregularities on the inside of the catheter hub 810, and further allow more than three extensions while maintaining a stabilized fit in the catheter hub. at the same time increased holding force. The flange, in accordance with the above, can be described as a substantially rigid mechanical support member, corresponding to the first stabilizing member 511, which extends rearwardly - or forwardly, in accordance with the above - longitudinally from the back of the circular disc at or near the periphery. of the same, i.e. at a point at or near the circumference of the circular disk. The outer surface of these elements, i.e. the surface which is water away from the central axis, may substantially coincide with the circular area defined by the longitudinal projection of the circumference of the circular disk. The supporting elements and the elastic flaps can thus be evenly spatially arranged in relation to the circular disc. They are preferably arranged symmetrically in relation to each other, with a separating distance of, for example, 0.1 to 3 mm between each other to enable correct function. Such a symmetrical relationship results in optimum stability and control of the pull-out force which is applied to remove the needle tip protection device 1000, which includes a mounting device 500, for example a catheter hub 810, as compared to any other asymmetric relationship.
    According to one embodiment, the protection device for teddy bear tip 1000 may be made of a plastic material. Preferably, the plastic material has a suitable combination, for its intended function, of tenacity, rigidity, fatigue resistance, elasticity and creep deformation resistance. The choice of a suitable plastic material can easily be made by a person skilled in the art. One skilled in the art can also perform standard experiments to screen a range of plastic materials, whereby a suitable plastic material can be selected on the basis of the results of such an experiment. A suitable plastic material has a high resistance to creep deformation, ie it has a lawful tendency to slowly move or deform permanently under the influence of a applied external pressure. Thus, a catheter instrument of the present invention, which includes, for example, coupling elements 540 with protrusions 541, can be stored in the mounted reed layer for a long time without extensive creep deformation of the protrusion 541, which would otherwise make the taper tip 1000 more prone to involuntarily disengage frail. a catheter hub 810. Furthermore, a lamp plastic material has a lamp elasticity and large three-dimensional memory to allow coupling elements 540 to maintain sift expanded condition and retain the taper tip 1000 device in catheter hub 810 even after prolonged storage during which coupling elements 540 have been forced out. this laze. In addition, the durability of the plastic material is preferably such that the teddy bear tip 711 can penetrate something into, but not through, the same. Advantages of a plastic tip device for teddy bear tip 1000 include a greatly reduced tendency of, in relation to metal, the release of, for example, microscopic plastic chips when scraping the plastic catheter hub 810 when protective device for teddy bear tip 1000, or a corresponding device, is discharged from the former upon retraction. nal 710. Consequently, the tendency for the formation of the scrap soil, which can result in leakage through the impacted cash register, is greatly reduced. Consequently, a plastic needle tip protection device may be color-coded or transparent, depending on its specific application.
    According to one embodiment, the protection device for teddy bear tip 1000 may be a monolithic or homogeneous injection molded protection device for teddy bear tip 1000 made of a molded plastic material. Due to the specific configuration of the various parts of the squeegee tip protection device 1000 according to the embodiments of the present invention, the squeegee tip protection device 1000 can be molded, as injection molded, into a homogeneous, i.e. monolithic, piece and / or an integrated unit, without spruce surfaces between the different parts of it. Advantages of a monolithic protection device for teddy bear tip 1000 include a lower production cost in relation to other devices made of more than one part that must be mounted.
    According to one embodiment, the needle tip protection device 1000 may be made of a thermoplastic polymer comprising crystalline and amorphous alternating regions. When the taper tip protection device 1000 is made of a thermoplastic polymer comprising crystalline and amorphous alternating regions, the teddy bear tip protection device 1000 will have improved storage capacity, thanks to the excellent structural memory of these polymers. The amorphous regions contribute with elasticity and the crystalline regions contribute with strength and stiffness, which makes the Ora tip device 1000 excellent for storage in a stretched state with a minimal loss of elasticity.
    According to one embodiment, the needle tip protection device 1000 may be made of a plastic material selected from the group consisting of POM, PBTP, PMMA, ABS, SAN, ASA, PS, SB, LCP, PA, PSU, PEI, PC, PPO, and / or PPO / SB. These polymers specifically have the advantages of the above, without necessarily being thermoplastic polymers with crystalline and amorphous alternating regions.
    According to one embodiment, the needle tip protection device 1000 may be made of a thermoplastic elastomer selected from the group consisting of a block copolymer of styrene, a polyolefinic blend, an elastomeric alloy, a thermoplastic polyurethane, a thermoplastic copolyester, and / or a thermoplastic polyamide. Also, these polymers specifically have the advantages as above.
    According to one embodiment, the squeegee tip protection device 1000 may be made of a plastic material selected from the group consisting of Styroflex®, Kraton®, Pellethane®, Pebax®, Arnitel®, Hytrel®, Dryflex®, Santoprene®, Geolast®, Sarlink®, Forprene®, Alcryn®, and / or Evoprene®, of the same shell as above.
    According to one embodiment, the taper tip 1000 protection device may be made of a plastic material selected from the group consisting of medical grade liquid crystal polymer, for example Vectra® LCP, polyethylene, and / or ultra high molecular weight polyethylene. of the same distinction as above.
    According to one embodiment, the taper tip 1000 protection device may be made of polysulfone, polyoxymethylene or polycarbonate.
    Smooth shapes in contact with two bodies, such as a protection device for teddy bear tip mounted in a catheter hub. can result in a significant attraction between these bodies, especially if the contact area is large and if they are compressed. The underlying cause of this type of attraction includes intermolecular attraction between the molecules of the two bodies, in which molecular van der Waals interactions and surface tension of the two bodies are important factors. The formation of covalent bonds between interacting surfaces can also contribute to the attraction. Such formation of covalent formations, and other types of attraction between two surfaces, can also occur in radiation treatment, such as radiation treatment of, for example, catheter instruments to sterilize them. This type of attraction can become noticeable when the protection device for the needle tip, or part of it, is about to be released from, for example, a catheter hub. The force required to release the protective device for the teddy bear tip, or part thereof, frail the hub is then considerably higher than expected. This effect, which may be referred to as the "attraction effect", may even compromise the intended function of the needle tip protection device if one relies on, for example, an automatic release of a part of the device, such as a flattened arm or the like, from a part of catheter hub. According to one embodiment, the part in contact or the entire protective device for the needle tip 1000 and the catheter hub 810 of the catheter instrument may be made of two different polymeric materials or plastic materials. Protective device for teddy bear tip 1000 is kept in contact with catheter hub 810 in mounted condition via at least one spruce surface between protective device for teddy bear tip 1000 and catheter hub 810. If this spruce surface consists, in whole or in part, of two different materials, disadvantages related to the attraction effect are minimized. For example, the plastic or polymeric material of the taper tip 1000 protection device may be polyoxymethylene (POM), polybutylene terephthalate (PBTP) or polysulfone (PSU), or any other material such as the edge of the technology area having similar luminescent properties. Accordingly, the plastic or polymeric material of the needle tip protection device 1000 may differ from the material of the catheter hub 810 to minimize the attraction effect. A majority of standard catheter hubs 810 are made of at least one polymer made from substituted or unsubstituted ethylene by a polymerization reaction in which the double bond in said ethane is converted to a single bond, for example polypropylene, polyethylene, or a propylene / ethylene copolymers. Thus, POM, PBTP, PSU or polycarbonate, or any other material such as edge in the prior art with similar luminescent properties, which are not the same as the material of the catheter hub 810, can be advantageously used as the material for a generally suitable taper tip 1000.
    According to one embodiment, the spruce surface between the needle tip protection device 1000 and the catheter hub 810 may be provided with an anti-adhesive agent. If the spruce surface is made of the same kind of plastic or polymeric material of the needle tip protection device 1000 and the catheter hub 810, inconveniences related to the attraction effect can be minimized by the use of such an anti-adhesive agent. Basically, a suitable anti-adhesive agent is a fine-grained, semi-solid, amorphous material or liquid which is made of one or more materials which are all different from the two spruce surfaces of the needle tip protection device 1000 and the catheter hub 810. is preferably a non-lubricant, or has only weak lubricating properties. to minimize the risk of unwanted disconnection of the needle tip protection device 1000 from the catheter hub 810. It is preferably of a medically accepted type and quality with legal toxicity. Examples of suitable anti-adhesive agents include polysaccharides, non-toxic salts such as magnesium or calcium carbonate or the like. Additional examples include the usual pharmaceutically acceptable carrier or excipient, which can be readily selected by one skilled in the art for this application.
    According to one embodiment, the catheter instrument may be fabricated by mounting the needle tip protection device 1000 in the catheter hub 810, for example, by pushing the needle tip protection device 1000 into the catheter hub 810 in a direction from the proximal vein toward the distal spirit of the catheter hub 810. already be mounted in the needle tip protection device 1000 when mounted in the catheter hub 810.
    According to one embodiment, the needle 710 may be mounted in the catheter hub 810 through the successive steps: a) Insertion of the needle 710, with the needle tip 711 first, in a direction from the proximal side 501 to the distal side 502 through the second stabilizing member 512; b) Providing the limiter 712 on the shaft of the needle 710 by, for example, lightly pressing on the shaft or providing a butt weld thereon. This sequence of steps is used to advantage of the needle tip protection device 1000, such as the needle tip protection device 1000 described in embodiments, whereby the shaft of the needle 710 can be reached to provide the limiter 712 when the former is mounted on the latter.
    According to one embodiment, the needle 710 may be mounted in the catheter hub 810 by the successive steps of: a) providing limiter 712 on the shaft of the needle 710 by, for example, lightly pressing on the shaft or providing a butt weld darpa; b) Inserting the squeegee 710, with the rear side of the squeegee 710 first, in a direction away from the distal side 502 toward the proximal side 501 through the second stabilizing member 512. Step b) may optionally be followed by mounting the connecting device 713 at the rear spirit of the squeegee 710. This step arrangement can be advantageously used for the protection device for the squeegee tip 1000, the shaft of the squeegee 710 not being able to be provided for providing the limiter 712 when the former is mounted in the latter.
    In the claims, the term "comprising" does not mean excluding the presence of other elements or steps. In addition, even if individually listed, a plurality of sets, elements or method steps can be implemented by, for example, an individual unit or therapist. In addition, although individual functions may be included in different hay, these may be advantageously combined, and the inclusion in different claims does not mean that a combination of functions is not possible and / or advantageous. In addition, singular references do not exclude a plurality. The terms "one", "one", "first", "other" and others. does not preclude a plurality. Reference numerals in the claims are provided for illustrative purposes only and are not to be construed as limiting the scope of the claims for any salt.
    权利要求:
    Claims (15)
    [1] 1. A catheter instrument comprising a needle (710) having a needle tip (711) at thedistal end thereof, a needle tip shielding device (1000), a catheter hub (810) having a catheter (820) extending from the distal end thereof, wherein: said catheter instrument has an assembled state, in which said needle (710) isextending in a direction from the proximal end to the distal end of said catheterinstrument essentially coinciding With the central axis of said needle tip shieldingdevice (1000), said catheter hub (810) and said catheter (820), and in whichassembled state said needle tip (711) is exposed and protruding past the distal endof said catheter (820), for enabling penetration of skin and placement of said distalend of said catheter (820) in a body cavity; said catheter instrument has a disassembled state, in which said needle tipshielding device (1000) is protecting said needle tip (711) from accidental contact,and in Which both of said needle (710) and said needle tip shielding device (1000)is separated from both of said catheter hub (810) and said catheter (820); said needle tip shielding device (1000) is comprising a fixing arrangement (500)with a proximal side (501) and a distal side (502), which fixing arrangement (500)is comprising at least one engaging element (540) extending essentially parallelwith said central axis from said proximal side (501) or said distal side (502),which engaging element (540) is resilient and resiliently striving from acompressed state towards an expanded state, such that it is Contacting the innersurface of said catheter hub (810) with a force in said assembled state forproviding a constant spatial relationship between said needle tip shielding device(1000) and said catheter hub (810) in said assembled state; and said needle tip shielding device (1000) is comprising at least one resilient arm(600) extending from the distal side of said engaging element (540), whichresilient arm (600), or a part thereof, coincides with the central axis of said needle (710) in said disassembled state. 24
    [2] 2. Catheter instrument according to claim 1, wherein said fixing arrangement (500)comprises at least one first stabilizing element (51 l), at least one first interior space (521) and at least one second stabilizing element (512); said first stabilizing element (511) comprises a first outer surface (531), said firstouter surface (531) having essentially the same shape as an adj acent part of theinner surface of said catheter hub (810) in said assembled state, for stabilizing saidneedle tip shielding device (1000) in said catheter hub (810), said first interior space (521) is located between the central axis of said needle tipshielding device (1000) and said engaging element (540) and adj acent to saidengaging element (540), for enabling relative movement of said engaging element(540) from said expanded state to said compressed state; said second stabilizing element (512) comprises a second interior space (522),which second interior space (522) is encompassing the shaft of said needle (710),said second stabilizing element (512) having one or several contact points or oneor several contact surfaces, or a mixture of at least one contact point and at leastone contact surface, which points or surfaces are slidingly engaged With the shaftof said needle (710), for stabilizing movement of said needle (710) in a directionalong the central axis of said needle tip shielding device (1000) and relative said needle tip shielding device (1000).
    [3] 3. Catheter instrument according to claim l or 2, wherein said engaging element (540)comprises a protuberance (54l); said protuberance (541) is extending in a directionessentially perpendicular to the central axis of said needle tip shielding device (1000);and said protuberance (541) comprises a third outer surface (533) or contact point at itsdistal end which is contacting the inner surface of said catheter hub (810) With a force insaid assembled state, for providing a releasable connection between said engaging element (540) and said catheter hub (810).
    [4] 4. Catheter instrument according to any one of the preceding claims, wherein said needle (710) comprises a restrictor (712) for engagement With said second stabilizing element (512) upon maximal movement of said needle (710) relative said needle tipshielding device (1000) in a direction from the distal end towards the proximal end of said needle tip shielding device (1000).
    [5] 5. Catheter instrument according to any one of the preceding clairns, further comprisingconnecting means (713) at the proximal end of said needle (710) for connection to said catheter hub (810).
    [6] 6. Catheter instrument according to any one of the preceding claims, wherein saidneedle tip shielding device (1000) is kept in contact with said catheter hub (810) in saidassembled state via at least one interface surface between said needle tip shieldingdevice (1000) and said catheter hub (810), said at least one interface surface of saidneedle tip shielding device (1000) being fully or partly of a first polymeric material andsaid at least one interface surface of said catheter hub (810) being fully or partly of a second polymeric material.
    [7] 7. Catheter instrument according to any one of the preceding claims, wherein saidneedle tip shielding device (1000) is kept in contact with said catheter hub (810) in saidassembled state via at least said interface surface between said needle tip shieldingdevice (1000) and said catheter hub (810), said at least one interface surface cornprising an anti-adhesive agent between said at least one interface surface of said needle tip shielding device (1000) and said at least one interface surface of said catheter hub (810).
    [8] 8. A needle tip shielding device (1000) for protection of a needle tip (711) of a needle(710), comprising a fixing arrangement (500) having a proximal side (501) and a distalside (502), which fixing arrangement (500) is comprising at least one engaging element(540), which engaging element (540) is resilient and resiliently striving from acornpressed state towards an expanded state, in which expanded state the shortestdistance between a point of said engaging element (540) and the central axis of saidneedle tip shielding device (1000) is longer than the shortest distance between said central axis and any other point of said needle tip shielding device (1000). 26
    [9] 9. Needle tip shielding device (1000) according to claim 8, further comprising at leastone first stabilizing element (511), for stabilizing said needle tip shielding device (1000)in a catheter hub (810), and at least one second stabilizing element (512), for slidinglyengaging with the shaft of said needle (710), for stabilizing movement of said needle(710) in a direction along the central axis of said needle tip shielding device (1000) andrelative said needle tip shielding device (1000).
    [10] 10. Needle tip shielding device (1000) according to claim 9, wherein said secondstabilizing element (512) is provided With a hole extending in an axial direction of saidfixing arrangement (500), through which hole said needle (710) may slide in a directionalong the central axis of said needle tip shielding device (1000) and relative said needle tip shielding device (1000).
    [11] 11. Needle tip shielding device ( 1000) according to any one of claims 8 to 10,comprising a resilient arm (600) extending from the distal side of said fixingarrangement (5 00), wherein said resilient arm (600) has a resting state, from which itmay be forced to yield free passage in an axial direction of said fixing arrangement(500), said resilient arm (600) being adapted for protecting or clamping said needle tip(711), and wherein any straight imaginary line extending longitudinally in the axialdirection of said fixing arrangement (500), through a passage between said proximalside (501) and said distal side (502), coincides with said resilient arm (600), When said resilient arm (600) is in said resting state.
    [12] 12. Needle tip shielding device (1000) according to any one of claims 8 to 11, wherein said fixing arrangement (500) is shaped as a circular or distorted cut cone or cylinder.
    [13] 13. Needle tip shielding device (1000) according to any one of claims 8 to 12, whereinsaid needle tip shielding device (1000) is a monolithic or homogenous injection molded needle tip shielding device (1000) made of a molded plastic material. 27
    [14] 14. A method for the manufacture of a catheter instrument according to any one ofclaims 1 to 7, comprising the step of mounting said needle tip shielding device (1000) insaid catheter hub (810) by pressing said needle tip shielding device (1000) into saidcatheter hub (810) in a direction from the proximal end towards the distal end of said catheter hub (810).
    [15] 15. A method for the manufacture of a needle tip shielding device (1000) according toany one of claims 8 to 13, comprising the step of molding a p1astic or polymeric material.
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    同族专利:
    公开号 | 公开日
    SE537334C2|2015-04-07|
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    AU2013253019B2|2017-01-19|
    US10406327B2|2019-09-10|
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    AU2013253019A1|2014-10-30|
    BR112014026425B1|2021-07-20|
    CN104271186A|2015-01-07|
    IN2014MN02143A|2015-08-21|
    WO2013162461A1|2013-10-31|
    JP2015514543A|2015-05-21|
    US20150126931A1|2015-05-07|
    CN104271186B|2017-10-27|
    ES2784648T3|2020-09-29|
    BR112014026425A2|2017-06-27|
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    优先权:
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    SE1250423A|SE537334C2|2012-04-27|2012-04-27|Protective device for needle point and mounting device|SE1250423A| SE537334C2|2012-04-27|2012-04-27|Protective device for needle point and mounting device|
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    PCT/SE2013/050471| WO2013162461A1|2012-04-27|2013-04-26|Needle tip shielding device and fixing arrangement|
    EP13782410.8A| EP2841134B1|2012-04-27|2013-04-26|Needle tip shielding device and fixing arrangement|
    US14/397,114| US10406327B2|2012-04-27|2013-04-26|Needle tip shielding device and fixing arrangement|
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