• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    suction retractor, the present invention provides a suction retractor, consisting of a continuous flexible dam, forming a closed loop of any shape, and which has one or more internal openings inside the closed loop, so that suction can be applied inside of the continuous dam. the suction retractor may further include a suction tube defining a suction channel, the suction tube is fitted or fitable to the continuous dam and, when fitted, the suction channel extends with one or more inlets. these inlets can open to a continuous channel, extending along the interior of the closed loop. preferably, the continuous dam is flat, or substantially flat, and comprises a first compact configuration for insertion and a second configuration open for spacing. the suction retractor of the present invention finds application in a single incision and in conventional laparoscopic surgery.
    公开号:BR112012028854B1
    申请号:R112012028854-7
    申请日:2011-05-13
    公开日:2021-08-10
    发明作者:Philip Gan
    申请人:Livac Pty Ltd；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention relates to a suction retractor, a method of surgery using a suction retractor, a method of manufacturing a suction retractor and a kit comprising a suction retractor. In particular, but not exclusively, the present invention relates to a suction retractor comprising a continuous flexible dam, having one or more inlets within a dam, through which suction can be applied. BACKGROUND OF THE INVENTION
    [002] Surgical procedures routinely require the use of mechanical retractors to move parts of the body, tissue and/or an organ during the course of surgery. These mechanical departures require a lot of skill to not cause trauma. Additionally, surgery is often performed in an enclosed space, which can become cluttered with such retractors.
    [003] The difficulty in using mechanical retractors can be illustrated briefly by examining an upper gastrointestinal surgery. Traditionally, the operation of abdominal organs requires a "laparotomy", which is a wide incision through the abdominal wall. One of the greatest advances in abdominal surgery over the past two decades has been laparoscopic surgery, which advantageously requires minimal access and thus avoids the extent of trauma and scarring associated with a large incision. Laparoscopic surgery can be performed by passing through multiple openings made with small incisions, or by using Single Incision Laparoscopic Surgery (SILS), which uses only a single incision and a single opening. SILS advocates expound on its advantages, such as reducing pain, trauma and scarring. Achieving proper fabric clearance in SILS has proven to be a significant technical hurdle, as the retractors used in the SILS opening limit the access of other instruments through such opening. Retraction suturing techniques are time-consuming and traumatic, whereas insertion of a retractor through a separate opening is not truly single-incision laparoscopic surgery. Therefore, there is a clear need for alternative retractors. PURPOSE OF THE INVENTION
    [004] It is the purpose of the present invention to solve and/or alleviate one or more of the above-mentioned drawbacks of the state of the art and/or provide the consumer with a useful or commercial choice.
    [005] It is still the preferred objective to provide a retractor that uses suction to remove one or more parts of the body, tissue, organ or any other part of the human body. Additional goals will be evidenced from the description that follows. BRIEF PRESENTATION OF THE INVENTION
    [006] The present invention is largely directed to providing a suction retractor, as well as a method of surgery using a suction retractor, a method for manufacturing a suction retractor, and a kit comprising a suction retractor.
    [007] The present invention provides a novel and inventive retractor that simplifies many surgical procedures and can reduce trauma and scarring from surgical procedures such as the aforementioned upper gastrointestinal surgery.
    [008] The simplification of the many surgical methods that is preferably achieved by the suction retractor and its methods is a significant advance. Some of these advantages are related to safety by reducing the risk of surgical error and promoting the uptake of less traumatic surgical methods.
    [009] The present invention is also of great commercial advantage, as the suction retractor can be disposable, thus eliminating the cost and effort required with its sterilization and cleaning.
    [010] In a first aspect, although this need not be the only, or even the broadest aspect, the invention presents a retractor with suction, comprising: a continuous flexible dam forming a closed loop of any shape and presenting one or more entrances, such inlets opening into the closed loop so that suction can be applied to one or more inlets and into the continuous dam.
    [011] The suction retractor may also comprise a suction tube having a suction channel, the suction tube fitted or fitable to the continuous dam and, once fitted, the suction channel remains continuous to one or more inlets.
    [012] In a second aspect, the invention provides a method of retracting one or more parts of the body, tissue, organ or any other part of the human body, using the retractor of the first aspect.
    [013] In a third aspect, the invention provides a method of retracting one or more parts of the body, tissue, organ or any other part of the human body, including the application of suction through a retractor, the retractor comprising one or more inlets defined in the continuous flexible dam, the continuous dam forming a closed loop of any shape and the entrances opening within the closed loop, to thereby form a seal in one or more parts of the body, tissue, organ or any other part of the human body and allow the removal of one or more parts of the body, tissue, organ or any other part of the human body.
    [014] The method of the second aspect may also include the step of applying suction through a suction tube fitted to the continuous dam, characterized in that the suction tube has a continuous suction channel to one or more inlets.
    [015] In a fourth aspect, the invention presents a method of manufacturing a retractor with suction, including the formation of a continuous flexible dam forming a closed loop of any shape and having one or more inlets opening inside the closed loop to thereby produce the retractor with suction. The method of the fourth aspect may also include forming or fitting a suction tube having a suction channel such that the suction channel and one or more inlets are continuous.
    [016] In a fifth aspect, the invention presents a system to move away parts of the body, tissue, organ and/or any other part of the human body, comprising: the continuous flexible dam forming a closed loop of any shape and presenting one or more inlets through which suction can be applied, the inlets opening into the closed loop; and a suction tube having a suction channel, the suction tube fitted or fitable to the continuous dam, characterized in that, when fitted, the suction channel remains continuous to one or more inlets. The system according to the fifth aspect may also comprise apparatus for applying suction through the suction tube and one or more inlets.
    [017] In a sixth aspect, the invention provides a kit to move away parts of the body, tissue, organ and/or any other part of the human body comprising: a continuous flexible dam forming a closed loop of any shape and having one or more entrances through which suction can be applied to one or more inlets opening into the closed loop; and a suction tube having a suction channel, the suction tube fitted or fitable to the continuous dam, characterized in that when fitted to the suction channel it remains continuous to one or more inlets.
    [018] The kit, according to the sixth aspect, may also comprise an apparatus for applying suction through the suction tube and one or more inlets.
    [019] The kit, according to the sixth aspect, may also comprise the instructions for use. According to any of the above aspects, entrances can extend into the interior area. According to any of the above aspects, the entrance may have a recess.
    [020] According to any of the above aspects, the inputs can open to a continuous channel existing outside the interior of the closed loop. According to any of the above aspects, the continuous channel may comprise an open channel. In accordance with any of the above aspects, the continuous channel may comprise a plurality of fenestrations.
    [021] According to any of the above aspects, the continuous channel can be connected to a central support.
    [022] The center support can be connected to one or more radial supports. The center support can be fenestrated.
    [023] Radial supports can be fenestrated. According to any of the above aspects, a protector can act as inputs. According to any of the above aspects, when the suction tube is fitted to the continuous dam, the suction tube can be disposed laterally to the continuous dam.
    [024] When the suction tube is arranged laterally, the continuous dam and the suction tube can be arranged flat or substantially flat. The flat or substantially flat arrangement may suitably allow conformational adaptation to the parts of the body, tissue, organ or any other part of the human body with which contact is made.
    [025] The continuous dam, according to any of the above aspects, can be flat or substantially flat.
    [026] According to any of the above aspects, the flexibility of the continuous dam allows the dam to conformationally adapt to the parts of the body, tissue, organ or any other part of the human body with which contact is made.
    [027] The continuous flexible dam, according to any of the above aspects, can comprise a first compact configuration for insertion and a second open configuration for retraction. Flexible continuous dam, according to any of the above aspects, can transition from the compact configuration to the open configuration through folding and unfolding, rolling and unrolling, collapsing and/or opening. The transition can be manipulated by an opening mechanism operatively coupled to the retractor. The retractor, in accordance with any of the above aspects, may comprise one or more tilting members. The tilting member can be a rod. The rod can span the continuous dam.
    [028] The continuous dam, according to any of the above aspects, can be malleable. The continuous dam, according to any of the above aspects, can have a format memory. The continuous dam, according to any of the above aspects, may be inflatable. The continuous inflatable dam may comprise an inflatable tube.
    [029] The continuous dam, according to any of the above aspects, may comprise first and second opposite walls.
    [030] The first and second walls can be partially separated by the continuous channel.
    [031] The first and/or second walls can be internally angled.
    [032] The first and/or second walls can be externally angled.
    [033] The first and/or second walls may be conical.
    [034] The first and/or second walls may comprise one or more support elements.
    [035] The support elements can be placed with the fenestrations in the continuous channel. The continuous dam, according to any of the above aspects, may comprise a perforated membrane.
    [036] The perforated membrane may comprise a central hole. The perforated membrane can cover at least a part of an area defined by the walls of the dam.
    [037] The retractor, according to any of the above aspects, may comprise one or more projections that can be grasped and manipulated in order to secondarily retract or reposition the tissue, organ and/or any other part of the human body. In accordance with any of the above aspects, the continuous channel may comprise an opening to an area defined by the first and second walls of the dam.
    [038] According to any of the above aspects, the first and/or second walls may comprise a convex outer surface.
    [039] The first and/or second walls may comprise a chamfer.
    [040] The first and/or second walls can comprise tips of progressive heights or in layers.
    [041] The first and/or second walls may comprise one or more edges. Edges can be flexible. Edges can be rigid.
    [042] Edges can be soft. Edges can be equipped with turrets. In a preferred embodiment, the first and/or second walls may comprise an outer flexible edge.
    [043] In another preferred embodiment, the first and/or second walls may comprise an inner edge equipped with turrets. In yet another preferred embodiment, the first and/or second walls may comprise an outer flexible edge and an inner edge equipped with turrets. In accordance with any of the above aspects, the continuous channel may comprise a trough or groove.
    [044] According to any of the above aspects, the gutter or groove may have a C shape.
    [045] According to any of the above aspects, the continuous channel may comprise a concave surface. In accordance with any of the above aspects, the continuous dam may be circular, amorphous, triangular or shaped to fit the parts of the body, tissue, organ and/or any other part of the human body to be removed.
    [046] According to any of the above aspects, a spacer can be presented inside the continuous dam.
    [047] The spacer may comprise a plurality of spacer brackets.
    [048] Spacing brackets can be radial or concentric.
    [049] Spacing brackets can be parallel. Spacing brackets can be transverse.
    [050] The spacer can comprise a web. The web can be positioned above and/or below the inlet or continuous channel.
    [051] According to any of the above aspects, the suction applied to the internal area is sufficient to effectively maintain or secure a part of the body, tissue, organ or any other part of the human body to another part of the body, tissue, organ or any other part of the human body through retractor. This way of maintaining or securing also acts preferentially on parts of the body, tissue, organ or any other part of the human body when moved through other parts of the body, tissue or organ.
    [052] Additional features of the present invention will become apparent from the detailed description below.
    [053] In this specification, the terms "comprises", "comprising", "included" and "including", or similar terms, are intended to mean a non-exclusive inclusion, such that a method, system or apparatus comprising a list of elements not only includes these elements, but may also include other unlisted elements. BRIEF DESCRIPTION OF THE DRAWINGS
    [054] In order for the present invention to be easily understood and put into practice, reference will now be made to the attached figures, characterized in that numerical references are used to refer to its elements, and characterized by: - FIG. 1A(i) is a schematic diagram of a suction retractor in accordance with a first embodiment of the invention; FIGS. 1A(ii), 1B, 1C, 1D, 1E(i), 1E(ii), 1F(i), 1F(ii), 1G(i)„1G(ii), 1H(i), 1 H(ii), 1 I(i), 1 I(ii), 1 J(i), 1 J(ii), 1 K, 1 L(i), 1 L(ii), 1 M(i) and 1M(ii) are schematic diagrams of the suction retractor, in accordance with other embodiments of the invention; - FIG. 2 is a schematic diagram showing a cross-sectional view of the retractor with suction, according to an embodiment of the invention; - FIGS. 3A and 3B show embodiments of the method of surgery according to the invention; - FIGS. 4A and 4B are schematic diagrams showing embodiments of the retractor manufacturing method in accordance with the invention; - FIGS. 5A and 5B are schematic diagrams showing embodiments of the kit in accordance with the invention; - FIGS. 6A, 6B and 6C are schematic diagrams showing cross-sectional views of the retractor with suction according to the first embodiment in USE; - FIGS. 7A, 7B, 8,9, 9A, 9B, 10, 11A, 11B, 12A, 12B, 12C and 12D show other embodiments of the suction retractor according to the invention. DETAILED DESCRIPTION OF THE INVENTION
    [055] The invention relates, at least in part, to a retractor that uses suction to remove parts of the body, organ, tissue and/or any other part of the human body.
    [056] The present inventor has provided an inventive and new retractor that simplifies many surgical methods.
    [057] There are many advantages associated with the present invention, including being compatible with true SILS, as well as its speed and simplicity of use.
    [058] Additionally, the suction retractor, which can advantageously be used to remove any parts of the body, tissue, organ or any other part of the human body, has an additional advantage, as its suction can be less traumatic than traditional manipulators mechanics.
    [059] The suction retractor allows the necessary force to be more evenly distributed around the surface of the body parts, tissue, organ and/or any other part of the human body to be removed and thus minimize the risk of trauma.
    [060] The suction retractor of the invention can still be disposable and cheap to manufacture. The present inventor provides a new retractor designed to retract an organ during surgery, with special application in single incision or conventional laparoscopic surgery. The new retractor of the invention comprises a dam, on which the suction force is applied.
    [061] In one application, the dam is placed between the viscera (nominally diaphragm and liver), suction is applied, and the apposition of the viscera is thus maintained.
    [062] It should be noted that, in the case of the diaphragm and liver, the dam is only used to maintain the normal anatomical relationship between these viscera, whereas normally the liver would fall out of the diaphragm under the influence of gravity in laparoscopic surgery.
    [063] The inventor warns that the suction retractor of the invention may not be strong enough in cases where a large force has to be applied to achieve the required spacing. In situations like this, where there are adhesions under the liver or very large organs, which are in the minority, they are best treated with traditional mechanical retraction. As used herein, "flexible" means the ability to be pliable. As will be elucidated below, the flexibility of the retractor of the invention means that the retractor can transition from a first compact configuration to a second open configuration.
    [064] FIG. 1A(i) shows an embodiment of the suction retractor 100 in accordance with the invention. The suction retractor (100) comprises a continuous weir (110) having an inlet (120) through which suction is applied from the suction tube (130). The inlet (120) comprises an opening or orifice within the inner area (150) from the suction channel, comprised in a suction tube (130). As will be explained below, a shield (191) can partially function as an inlet (120), so that the suction does not aspirate material such as body parts, organ or any other part of the human body to be moved, into one or more entries (120). In another embodiment, the inlet (120) may be recessed within the dam (110) to prevent material from being sucked into the inlet (120).
    [065] FIG. 1A(ii) shows another embodiment of the suction retractor (100), in which the inlet (120) opens to a continuous channel (121) through which suction can be applied. The structure of the continuous channel (121) is discussed in detail below with reference to FIG. two.
    [066] As shown in FIGS. 1A(i) and 1A(ii), the continuous dam (110) forms a loop (111) that surrounds and defines an internal area (150). Using the retractor (100), suction can be applied into the inner area (150).
    [067] As will be understood, the suction applied to the inner area (150) is sufficient to effectively maintain or secure the body parts, tissue, organ or any other part of the human body to other parts of the body, tissue, organ or any another part of the human body through the retractor (100). This way of maintaining or securing also acts preferentially on parts of the body, tissue, organ or any other part of the human body when moved through other parts of the body, tissue or organ.
    [068] In the embodiment shown in FIG. 1A(i), the inlet (120) does not extend into the inner area (150). In other embodiments, the entrance (120) extends to the interior area (150).
    [069] The suction retractor (100) may also comprise a flexible suction tube (130) having a suction channel (140). As shown in FIG. 1A(i) and FIG. 1A(ii), the suction channel (140) remains continuous with the inlet (120) and the continuous channel (121), respectively. The suction tube (130) also comprises a proximal tube opening (131) which can be fitted to an apparatus for applying suction through the suction channel (140).
    [070] In another embodiment, the suction tube (130) is detachably engageable to the continuous dam (110). This allows the suction tube (130) to be removed and fitted as needed.
    [071] The continuous dam (110) is flat or substantially flat. As can be seen from FIGS. 6A-6C, the flat or substantially flat shape allows the continuous dam (110) to be positioned or pressed between two adjacent and/or confined body parts, tissues, organs and/or any other body part. The flexible, flat or substantially flat arrangement allows for appropriate conformational adaptation to the parts of the body, tissue, organ or any other part of the human body to be moved away.
    [072] To allow the positioning of the continuous dam (110), the suction tube (130) can be arranged laterally on the continuous dam (110). This lateral arrangement results in a retractor (100) with a flat or substantially flat shape, as shown in the embodiments illustrated in FIGS. 1A(i), 1A(ii), 18, 1C, 1D and 1E(i) and 1E(ii).
    [073] The dam (110) of the retractor 100 shown in FIGS. 1A(i) and 1A(ii) is null. Based on the teachings of the present description, an expert is able to readily select other suitable shapes for the dam (110). For example, FIGS. 1B and 1C show embodiments in which the dam (110) is amorphous and triangular, respectively. Other shapes suitable for the dam (110) include rectangular, square, pentagonal, and hexagonal. The dam can be formed to fit particular parts of the body, tissue, organ and/or any other part of the human body to be removed.
    [074] FIG. 1D shows another embodiment of the retractor (100) comprising a membrane (114). The membrane (114) comprises multiple perforations and has a central hole (116). To avoid overloading, not all perforations (115) are labeled in FIG. 1D. The perforated membrane extends over at least a portion of the inner area (150) defined by walls (112), (113) (see Figure 2 and also the description below).
    [075] The perforated membrane (115) is preferably thinner than the dam (110).
    [076] FIG. 1E(i) shows a top view of another embodiment of retractor (100). The retractor (100) shown in FIGS. 1E(i) and 1E(ii) comprise a fenestrated continuous channel (121). By fenestrated is meant a series of fenestrations, or openings, or windows (121a), present along the length or continuous channel (121). In other embodiments, for example those shown in FIGS. 1A(ii), 1B, 1C, 1D and FIG. 2, the continuous channel (121) is open. In the embodiment shown in FIG. 1E, the continuous channel (121) is connected to a central support (125), which in turn is connected to one or more radial supports (126). Both the center support (125) and the radial supports (126) are fenestrated to provide suction in the inner area (150). The supports (125), (126) divide the inner area (150) into sections.
    [077] In the embodiment shown in FIGS. 1E(i) and 1E(ii), the proximal sections of the continuous channel (121), that is, those sections (121-1) and (121-2) extending from the inlet (120) to the first radial support (126 ), are closed. the distal sections of the continuous channel (121), that is, those sections (121-3) and (121-4) extending between the radial supports (126); and those end sections (121-5) and (121-6) extending between the radial supports (126) and the central support opposite the inlet (120); comprises a fenestrated channel (121). In other embodiments, the distal sections (121-3), (121-4), (121-5) and (121-6) are open and comprise a gutter or groove (122), having no fenestrations (121a). In still other embodiments, the entire continuous channel (121) is fenestrated.
    [078] FIG. 1E(ii) shows a sectional perspective view of the retractor (100) shown in FIG. E(i), in which supports (125), (126) are omitted. The sectional view shows the first and second walls (112), (113) comprising an outer edge (193) and an inner edge (193a). The outer edge (193) is flexible to adapt to the parts of the body, tissue or organ to be contacted and on which a seal is to be made. The inner edge (193) is equipped with turrets and stiffer to provide support for the dam (110) while gripping the body parts, tissue or organ to be contacted. The turret-equipped edge (193a) comprises a series of turrets or spaced teeth (193b) which are separated by a series of valleys (193c).
    [079] As will be elucidated below with reference to FIGS. 7 and 9, the spacer (190) can be inserted into the inner area (150) to assist in keeping the parts on opposite sides of the continuous dam (110) separate.
    [080] The spacer (190) can be of any suitable shape and material. The spacer (190) may comprise a foam material or a mesh material.
    [081] Preferably, the spacer (190) is a mesh. As will be described below, the spacer (190) may comprise a plurality of radial or concentric spacing supports (194), one or more parallel spacing supports (195) and/or one or more transverse spacing supports (96).
    [082] FIGS. 1 F(i) and 1 F(ii) show top and perspective views, respectively, of another embodiment of the retractor (100) comprising the tilting member (127). For reasons of simplicity, channel (121) has been omitted from FIG. 1F(ii).
    [083] In the embodiment shown in FIGS. 1F(i) and 1F(ii), the tilting member (127) is a rod (127a) that extends across the continuous dam (110) and provides a bias from the compact configuration to the open configuration. The polarization allows a good change (round trip) from the compact configuration to the configuration. Based on the teachings of the present description, a skilled person is easily able to select other suitable tilt members (127). In other embodiments, retractor 100 comprises a plurality of tilting members.
    [084] FIGs. 1 G(i) and 1G(ii) show top and perspective views, respectively, of yet another embodiment of the retractor (100), comprising internally angled or V-shaped walls (112), (113) which angled inwards towards the inner area (150). Internally angled walls (112), (113) improve conformational fit with the body parts, tissue or organ to be contacted and can improve and/or reinforce the seal.
    [085] FIGS. 1H(i) and 1H(ii) show top and perspective views, respectively, of a further embodiment, in which the retractor (100) comprises reinforcing members (126) positioned in the channel (121). The reinforcing members (126) are substantially stiffer than the continuous dam (110) and will maintain an open configuration under a compressive force that would collapse the channel (121). Strengthening members can be placed along with the plurality of openings or fenestrations (124). Strengthening members can prevent loss of suction if walls (112), (113) disassemble.
    [086] The realization of the retractor (100) illustrated in the top and perspective views of FIGS. 11(i) and 1F(ii), respectively, have externally angled walls (112), (113), that is, angled outward from the internal area (150), and which can create a cup-like suction in order to increase suction. Advantageously, due to the externally angled walls (112), (113), the contact surface increases and the sealing can be improved. Accordingly, suitable for any embodiment of the retractor 100, to improve the seal, the walls (112), (113) can be tapered. The improved sealing effect of the tapered walls (112), (113) will be particularly apparent with the internally and externally angled walls (112), (113) such as the embodiments shown in FIGS. 1G and 11.
    [087] FIGS. 1J(i) and 1J(ii) show top and perspective views, respectively, of an embodiment of the retractor (100), which transitions to an opening configuration by being inflated from its collapsed configuration. Inflation and deflation take place through an inflation tube (135), which has an inflation channel (145) and opens inside the inflation inlet (136) in the dam (110). The inflatable retractor (100) would advantageously present good contact surface and conformation with the sealing surface. An inflatable retractor would also provide a relatively soft contact surface to reduce or limit any damage to body parts, tissue, organ or any other part of the human body contacted by the inflatable retractor (1100).
    [088] FIG. 1K shows an embodiment of the retractor (100), which comprises a projection (129) that can be captured and manipulated in order to secondarily retract or reposition tissue, organ and/or any other part of the human body.
    [089] In the embodiment shown in FIG. 1K, the projection (129) is a guide (129a) extends from the dam (110) and is located distally to the suction tube (130).
    [090] In other embodiments, the retractor (100) may comprise a plurality of projections (129) positioned at various locations on the dam (110).
    [091] As shown in FIG. 2, the continuous dam (110) comprises a first wall (112) and a second wall (113) which are joined and opposed to each other. The walls (112) and (113) join substantially in the middle of the dam (110), that is, in the realizations of the retractor (100), comprising the central channel (121), the walls (112), (113) they are partially separated by the continuous channel (121). In the realization of the retractor (100) shown in FIG. 2, the first and second walls (112), (113) comprise a semi-spherical cross-section and comprise a curved or convex outer surface, having no edges and thus minimizing the risks of the retractor (100), not causing any internal damage. Based on the teachings of the present description, a skilled person is easily able to select alternative cross sections for the walls (112), (113). For example, the walls (112), (113) may comprise a chamfer (180), see FIG. 7B, or it may comprise tips of progressive height or layered.
    [092] Additionally, as described above with reference to Figures 1E(i) and 1E(ii) and below, with reference to Figures 11A and 11B, the walls (112), (113) may comprise an edge (193) and/or an inner edge (193a). In other embodiments, the outer surface of the walls (112), (113) is not curved and instead are smooth or flat. Smooth surfaces can contain edges or corners, or it can contain tapered edges. Based on the teachings of the present description a skilled person is readily able to choose a suitable shape for the walls (112), (113).
    [093] In the embodiment shown in FIG. 2, the continuous channel (121) is a C-shaped trough or groove (122) comprising a concave surface (123). In other embodiments, channel (121) may contain another shape, such as a V shape. An expert is easily able to select an alternative shape for channel (121).
    [094] As shown in FIG. 2, to generate suction in the inner area (150), the retractor (100) comprises an opening (124) in the continuous channel (121) which opens outwardly from the inner area (150).
    [095] In the embodiment shown in FIGS. 1A(ii) and FIG. 2, a single opening (124) runs the length of the continuous channel (121). In the embodiment shown in FIG. 1E(i) and 1E(ii), the retractor (100) comprises a plurality of fenestrations (121a) which extend only a portion of the length of the continuous channel (121).
    [096] Each fenestration (121a) has its own opening (124a). The plurality of fenestrations (121a) associated with the openings (124a) may be spaced equidistantly and intermittently along the length of the fenestrated continuous channel (121) so as to still obtain a suction.
    [097] The opening (124) allows suction applied through the continuous channel (121) to form a seal between the two internal structures, which press the retractor with suction (110) between them. Once the seal has been formed, the internal structures can be pulled apart.
    [098] In the embodiments shown in FIGS. 1D, 1E(i) and 1E(ii), the suction of body parts, tissue, organ or any other part of the human body is applied through multiple perforations (115) and multiple openings (124a), respectively. The continuous dam (110) shown in FIGS. 1A(i), 1A(ii) and 1D, has a diameter of 50mm, with an appropriate range of 30 - 80mm to allow its pediatric application in "very large" patients. The continuous dam (110) shown in FIG. 1B has a longer extension of 60mm and a shorter extension of 40mm. The length of the sides of the dam (110) shown in FIG. 1C is 50mm. The walls (112) and (113) are each 3mm thick, comprising a combined thickness of 6mm. A suitable variation for the thickness of the walls (112) and (113) is 3mm - 6mm.
    [099] The perforated membrane (114) has a thickness of 4mm. A suitable variation for the perforated membrane (114) thickness is 3mm - 6mm. The perforations (115) have a diameter of 4mm. A suitable variation for the diameter of perforations (115) is 2mm - 5mm. Hole 116 has a diameter of 10 mm. A suitable variation for hole 116 diameter is 2mm - 30mm. The continuous channel (121) has a diameter of 2mm. A suitable variation for the diameter of the continuous channel (121) is 1mm - 3mm. The opening (124) is 2mm wide.
    [100] A suitable range for the aperture (124) is 1 - 3mm. The suction tube (130) has a diameter of 5mm and the suction channel (140) has a diameter of 3mm. Suitable ranges for the diameter of the suction tube and suction channel (140) are 4mm - 7mm and 3mm - 5mm, respectively. The suction tube has a length of 50cm. The length can be adapted to a particular surgical technique and is likely to be in the range of 10cm - 3 meters. [096]
    [101] Based on the teachings of the present description, an expert is readily able to select appropriate values for the dimensions discussed above. You should also understand that the dimensions included herein are indicative only and the invention is not so limited.
    [102] As mentioned above, in order to be inserted through a tract in laparoscopic surgery, the retractor (100) is preferably flexible and/or detachable.
    [103] As a result of this flexibility and/or collapsibility, the retractor (100) may have a first compact configuration for insertion and a second open configuration for contraction.
    [104] To transition between the compact configuration and the open configuration, the retractor (100) can be folded and unfolded, rolled and unrolled, and/or disassembled and released. Preferably, the transition is reversible.
    [105] Figure 1L(i) shows an embodiment of the retractor (100) in placing, by coupling, an opening mechanism (not shown) to the retractor (100). The opening mechanism can act on the tilting member (127). From the present teaching, an expert is easily able to select a suitable opening mechanism.
    [106] In addition to being malleable, retractor 100 may also have a shape memory. This shape memory allows the retractor to return to its original and intended shape after being compressed, for example, to fit through a surgical opening or to be positioned for retraction.
    [107] To achieve the desired level of malleability, the dam (100) is provided with a suitable medical grade biocompatible synthetic material, such as soft and/or malleable silicones and/or plastics. As will be discussed below, malleability allows the retractor (100) to be folded into a compact size to allow insertion through a surgical opening. The malleability also helps the retractor (100) to adapt to the shape of the parts of the body, tissue, organ and/or any other part of the human body to be removed. This feature of the invention advantageously improves applied suction. [102] FIG. 1M(i) shows yet another embodiment of the retractor (100) of the invention, in which the spacer (190) is in the form of a web. In FIG. 1M(i), the web is located on one side, ie below, or in use on the bottom surface of the continuous channel (121). In FIG. 1M(ii), the web is placed on both sides, that is, above and below, or in use on the lower surface and the upper surface of the continuous channel (121). The web, like other spacers (190), is useful to prevent matter from being drawn into the inlet (120) or channel (121).
    [108] The retractor (100) can also be used in conventional surgical techniques. In these techniques, there is no requirement for the retractor (100) to be inserted through a surgical opening and, in such cases, the retractor (100) can be as large a size as required to retract the body parts, tissue, organ and /or any other human body part of interest. The retractor (100) can be used to move away parts of the body, tissue, organ or any other part of the human body. For example, the retractor (100) can be used to retract either the right or left lobes, or the liver during SILS, or any suitable body part, tissue, organ, or any other part of the human body.
    [109] As noted above, the invention also provides a method (200) of retracting one or more parts of the body, tissue, organ or any other part of the human body using the retractor (100). According to an embodiment of the method (200) shown in FIG. 3A, in step (210), suction is applied through the retractor (100) to form a seal of one or more parts of the body, tissue, organ or any other part of the human body by allowing the removal of one or more parts of the human body. body, tissue, organ or any other part of the human body. Before applying suction, the retractor (100) is positioned on or pressed between the parts of the body, tissue, organ or any other part of the human body to be removed and another structure, so that adequate suction and vacuum can be created in order to facilitate removals. The other structure can be other parts of the body, tissue, organ and/or any other part of the human body.
    [110] As shown in FIG. 3B, the method (200) may also include the step of applying suction through a suction tube (130) fitted to the continuous dam (110), characterized in that the suction tube (130) has a continuous suction channel (140) to the entrances (120). The invention also provides a method (300) of manufacturing the suction retractor (100).
    [111] As shown in FIG. 4A, the method (300) includes the step (310) of forming a continuous dam (110), showing one or more inlets (120) to then produce the suction retractor (100). The continuous dam formed may also define the continuous channel (121).
    [112] FIG. 4B shows another embodiment of method (300), including the next step (320) of forming or fitting a suction tube (130), a suction channel (140) being shown, so that the suction channel (140) and one or more inputs (120) are continuous. FIG. 5A shows a kit (400) according to an embodiment of the invention which comprises a retractor (100) comprising a continuous dam (110) and a suction tube (130).
    [113] The suction tube (130) can be fitted to the continuous dam (110) by joining the distal tube opening (132) to the dam opening (117) so that the suction channel (140) be continuous to the input (120) and/or to the continuous channel (121).
    [114] Another embodiment of the kit (400) according to the invention is shown in FIG. 5B which includes a suction apparatus (160) for applying suction through the suction channel (140). The suction tube (130) is connected to the apparatus (130) by joining the opening of the proximal tube (131) to the opening of the suction apparatus (161).
    [115] Suction can be applied continuously, or, once a seal is achieved, suction can be discontinued or only applied intermittently. Suction apparatus (160) may be any conventional electronic suction device suitable for applying suction through a tube, such as suction tube (130). In one embodiment, the suction apparatus (160) is a conventional 'suction wall' device, through which variable suction pressure can be applied and adjusted by a lever. In another embodiment, the suction apparatus (160) may be an electronic suction device which is capable of monitoring and maintaining the degree of applied suction force in accordance with predetermined settings. [111]
    [116] In yet another embodiment, the suction apparatus (160) may be a syringe, which is withdrawn to apply suction and generate a seal, using a latch or 3 types of cap to maintain the suction force, albeit in In tests to date, this has been shown to be ineffective in maintaining tissue apposition. Kit (400) may also comprise one or more laparoscopic openings (173). In order that the invention may be easily understood and put into practice, a non-limiting example is provided below. EXAMPLES EXAMPLE 1 LiVAC - Liver Vacuum Retraction (Liver Vacuum Retraction).
    [117] Although not limited to it, the method of the invention will be further explained with reference to retracting the liver to expose the organs below it during laparoscopic surgery. Moving the liver upwards is necessary in operations performed on the stomach or gallbladder. The removal is necessary to have access to these organs. When using the new suction retractor (100) of the invention, this technique is called LiVAC or Liver Vacuum Refraction. Laparoscopic surgery and open surgery require applying force against the lower surface of the liver to lift it. In laparoscopic surgery, a unique area or opening is created for inserting the retractor and maintaining the retractor. The retractor (100) and method (200) of the invention provide a means of retracting the liver using suction between the upper surface of the liver and the diaphragm. As shown in FIG. 6A, the dam (110) can be positioned between the diaphragm (70) and the liver (171), and then suction is applied through the tube (130), so that the liver (171) and the diaphragm ( 170) are held together in apposition and then apart. The lateral attachment pieces from the left lobe of the liver to the diaphragm can be split to reduce opposition forces against the suction retractor.
    [118] In the embodiment shown in FIG. 6A, the dam (110) is inserted through the laparoscopic opening (173), which is positioned through a surgical incision (172) made in the patient's abdomen (174). The dam (100) is compacted and inserted through an opening 173 or through an incision (172), with the tube then brought back through a channel or connection in the opening (173). Tube (130) is also partially inserted through opening (173).
    [119] Advantageously, the suction retractor (100) is not only compatible with Single Incision Laparoscopic Surgery (SILS) techniques, but also greatly simplifies SILS. As shown in FIG. 6A, the suction tube (130) is suitably restricted to allow it to pass through the opening (173), while leaving most of the opening ring (173) vacant to receive other laparoscopic instruments. In this way, the retractor (100) does not take up space, competing against other laparoscopy instruments also inserted through the opening (173).
    [120] FIG. 6B shows an embodiment in which the suction tube (130) is integral with the surgical opening (173).
    [121] FIG. 6C shows that the retractor 100 of the invention is also compatible with a modified SILS technique, in which, in addition to the opening (173), a hollow needle or trocar (175) is inserted through the patient's abdomen (174). The hollow needle or trocar can be fitted to the suction tube (130) through the proximal opening (131). In this modified SILS technique, the suction tubing (130) stays for a shorter time inside the abdomen, with only a small incision being added to accommodate the needle or trocar (175). The retractor (100) can be used to retract both the left and right lobes of the liver. EXAMPLE 2 Acetal prototype
    [122] Initial testing was performed using a retractor (100) made of a rigid, acetal ring similar to that depicted in FIG. 7A. The test was performed by placing the retractor (100) between two halves of a liver. As shown in FIG. 9A, acetal prototype of the retractor (100) comprises an inlet (120).
    [123] A spacer 190 comprising a wire mesh disk placed in the middle of the continuous dam (110) acetal, aiding in splitting the liver into two parts, thus maximizing the surface of the liver area exposed to vacuum, see spacer ( 190) shown in FIG. 9B. This proved to be successful. The force acting on the enlargement of the liver surface by the vacuum means that the edges of the acetal ring were causing impressions and tissue damage to the liver surface.
    [124] A bevel (180) has been inserted into the walls (112), (113) to reduce this damage. FIG. 7A shows the acetal prototype of retractor 100 and FIG. 7B shows the cross-sectional shape change with the addition of the chamfer (180). This had very little effect on the suction results as the retractor (100) still maintained a seal in the liver. The test then began using a spacer (190) comprising one or more low-density foams as a means of liver separation, instead of the spacer wire mesh (190). A variety of foam materials as well as foam shapes were tested. A variation is shown in FIG. 8, in which the spacer (190) is a disc-shaped foam placed on the inner surface (150) with a cutout in the opening (120) and a central hole.
    [125] It was concluded that there are no foams used as effectively as the wire mesh inserted into the spacer (190) as the liver compressed the material when under vacuum and was also sucked into the inlet (120). A needle valve (not shown) was fitted to the suction apparatus (160) to vary the flow rate and it was found that, once the initial suction was created, the retractor (100) only once failed when the flow was almost zero. The decrease in flow rate before the initial seal is created only to prolong the time taken to create a vacuum. The acetal retractor (100) was then produced to have a channel or a notch (121) across half of the inner face, see FIG. 9A. The section directly in front of the inlet (120) was then covered with a shield (191), comprising a thin tape (see FIG. 9B). Shield (191) prevented the liver from blocking entry (120).
    [126] The results were also enhanced by having a vacuum void exposed within the notch channel (121). An additional standoff (100) was created to contain edges (192) of progressive height on the contact surfaces of the dam (110) (not shown). It has been hypothesized that a seal can be created over the outermost edge, so if a part of the seal fails, such as the liver peeling under gravity, it would be resealed on the next edge. It was concluded that this solution was not successful, since the initial sealing was always made on the innermost edge. The addition of fenestrations (121a) by a variety of means, such as tying the edges and inserting brass tubes (not shown) into the channel (121), appeared to create a slightly more directional flow of air through the vacuum, the The overall effect was, however, minimal. The role of the spacer wire mesh (190) was then further investigated using substitutes such as sink drains and fiberglass mesh, see FIGS. 10A and 10B. Effects on the liver surface over time were then observed. It was determined that minor liver damage, in the form of bruises, such as bruises, and surface impressions, which quickly disappeared, were not of major concern in the project. More serious damage such as blisters and tears were avoided. It was observed that it was not necessarily the surface separation that caused damage, but the distance that the liver must move in empty spaces. The effect of an edge (193) on the walls (112), (113) was then tested, see FIGS. 11A and 11B. It was found that there is a polarization on the contact surface, this being at the inner boundary of the walls (112), (113) or the dam (110), so wide edges (193) do not act as sealing faces. The edge (193) in this realization was formed from silicone and, therefore, was malleable and proved to be more compatible with a slightly irregular surface, generating a better sealing quality compared to the previous test, using hard parts. It was also observed that the elevation of the dam's contact face (110), from the spacer (190), increased the vacuum effect, since this was exposing the liver surface to a larger vacuum area. EXAMPLE 3 Rapid prototyping - Prototypes 1, 2, 3 and 4
    [127] The results of four prototypes, 1, 2, 3, 4 shown in FIGS. 12A, 12B, 12C and 12D, respectively, to create a seal for the liver will be discussed below.
    [128] As shown in FIG. 12A, prototype 1 is circular and has a spacer (190) comprising a series of radial or concentric spacing supports (194), separated by radial or concentric splines (194a). The prototype 1 also comprises a central hole (116). Prototype 1 additionally has a flexible outer edge (193) and an inner edge with rigid towers (193a). FIG. 12B shows a prototype 2 circular and with rigid outer walls (112), (113), the spacer (190) comprising a series of parallel spacing brackets (195) with small (not visible) grooves along its length and with inlet (120) extending slightly over the outside of the dam (110). Spacing brackets (195) are graduated to allow maximum spacing in the center.
    [129] FIG. 12C shows a prototype 3 circular and with a spacer (190), comprising a series of parallel spacer brackets (195) with small (not visible) slots along its length and with inlet (120) extending slightly over the interior. of the dam (110). Prototype 3 also has a flexible outer edge (193) and an inner edge with rigid towers (193a).
    [130] FIG. 12D shows an elliptical prototype 4 with rigid walls (112), (113), a series of parallel spacing brackets (195) with small (not visible) grooves along its length and a transverse center spacing bracket (196) connected to parallel spacing brackets (195). The transverse center spacing bracket (196) is curved. The test was filmed and video stored. All prototypes created a liver seal, although the inlets for these fast prototypes projected well into the inner perimeter of the dam, leading to a tendency for tissue (liver) to be sucked into the inlet, thus preventing distribution. of suction inside the dam.
    [131] Future prototypes will have their entry(s) downgraded. The retractors (100) of prototypes 1 and 3 both have identical outer walls, with thin and flexible outer edge structures (193), with a stiffer inner edge with towers (93a). This flexible outer edge (193) followed the contours of the liver, with the stiffer towered inner edge (93a) providing support for the retractor (100).
    [132] Studies were performed with tubing (130) comprising both silicone and polytetrafluoroethylene (PTFE). Silicone tubing (130) appears to be the most suitable, as it is flexible, has minimal impact on the seal and contact surface of the model. Additionally, the flow rate of the 3mm ID tubing was sufficient and could be reduced if possible.
    [133] PTFE tubing (130) was not as effective, with its rigidity limiting placement options and impacting seal quality as it transferred forces to the suction ring. Suction piping was introduced in order to achieve the suction force within the inner limits of the dam. It has been observed that bodily tissues (eg, liver or diaphragm) tend to be drawn to the maximum point of suction force at the suction inlet (120). If this happens then suction is lost within the remainder of the dam boundaries, resulting in loss of apposition. A variety of strategies can be employed to prevent this from happening in order to avoid suction forces within the dam boundaries. Such strategies include a deep chute (122) on the inner perimeter of the dam and structures within that inner perimeter, such as one or more supports (125), (126) which can be fenestrated in continuity with the applied suction; a membrane (114) that can comprise multiple perforations (115) in continuity with the applied suction; one or more spacers (190) which may comprise one or more radial supports (194), parallel supports (195) and/or transverse supports (195); and/or a protector (191).
    [134] The challenge of upper gastrointestinal SILS is the exposure of organs under the liver without resorting to additional openings. The retractor (100) and method (200) of the invention provide a simpler means of retracting the liver upwards. Thus, although not limited to this, the retractor (100) and method (200) greatly simplifies upper gastrointestinal (GI) surgery, whether using true SILS or conventional laparoscopic multi-entry surgery. As well as the advantages of the invention elucidated above, it is clear that the retractor (100), method (200) and method (300) greatly simplify complicated surgical techniques and offer a speed of use not previously provided. As elucidated above, a variety of dam shapes and sizes can be used. Although not restricted to them, the prototype tested showed that the dam (110) comprising a ring is more stable. Advantageously, the retractor (100) can be used as a stand-alone device, or incorporated into a wide range of single-incision laparoscopic openings. The retractor (100) is conceived as being capable of being introduced directly into the peritoneal cavity, through a surgical incision, or conversely, in a foldable manner through the laparoscopic opening. In the latter embodiment, the dam would expand into its desired shape by memory or potentially inflatable structures.
    [135] The device can be provided for use through suction devices for standard operations, or through a stand-alone suction device designed to monitor and maintain suction within pre-determined settings. Throughout the specification, the aim has been to describe preferred embodiments of the invention, without limiting it to any specific embodiment or set of features. It will, therefore, be appreciated by those skilled in the art that, in light of the present description, various modifications and changes can be made to the particularly exemplified embodiments without departing from the scope of the present invention. All computer programs, algorithms, industrial, patent and scientific literature referred to are hereby incorporated by reference.
    权利要求:
    Claims (23)
    [0001]
    1) SUCTION RETRACTOR, said suction retractor (100) comprising: a continuous flexible dam (110) forming a closed circuit of any mold and defining one or more inputs (120), one of more inputs (120) which open to an interior of the closed circuit (111) and one or more inlets (120) opening to a continuous channel (121) extending through an interior of the closed circuit (111) so that suction can be applied across of one or more inlets (120) and within the continuous dam (110), the continuous dam (110) comprising first and second opposite walls (112, 113), the flexibility of the continuous dam (110) allowing the dam (110 ) adapts to a part of the body, tissue, organ or part of it to which contact is made, characterized by the suction retractor (100) comprising a protection (191) covering one or more inlets (120) in which the suction is applied to the interior is sufficient to effectively retain or fix a part of the body, acid, organ or part of it to another part of the body, tissue, organ or part of it through the ion-retracting suction (100).
    [0002]
    2) SUCTION ROCKER, according to claim 1, characterized in that the protection (191) is configured to prevent parts of the body from being pulled into one or more inlets.
    [0003]
    3) SUCTION ROCKER, according to claim 1 or 2, characterized in that it further comprises a suction tube (130) that defines a suction channel (140), the suction tube (130) fixed or attachable to the continuous dam (110) and when connected to the suction channel (140) continuous with one or more inlets (120).
    [0004]
    4) SUCTION ROCKER, according to any one of claims 1 to 3, characterized in that the continuous channel (121) comprises an open channel.
    [0005]
    5) SUCTION ROCKER, according to any one of claims 1 to 4, characterized in that the continuous channel (121) comprises a plurality of fenestrations (121a).
    [0006]
    6) SUCTION ROCKER, according to claim 3, characterized in that when the suction tube (130) is fixed to the continuous dam (110), the suction tube (130) is arranged laterally on the continuous dam (110 ).
    [0007]
    7) SUCTION ROCKER, according to any one of the preceding claims, characterized in that the continuous dam (110) is flat or substantially flat.
    [0008]
    8) SUCTION ROCKER, according to any preceding claim, characterized in that the continuous flexible dam (110) comprises a first compacted configuration for insertion and a second open configuration for retraction.
    [0009]
    9) SUCTION ROCKER, according to any preceding claim, characterized in that the continuous channel (140) comprises an opening in the inner area (150) defined by the first and second walls of the dam.
    [0010]
    10) SUCTION RETRACTOR, according to any one of the preceding claims, characterized in that the suction retractor (100) comprises a spacer inserted in the interior area to help keep the parts separate on opposite sides of the continuous dam.
    [0011]
    11) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, characterized in that it includes applying suction through a retractor (100), said retractor comprising one or more entrances defined in a continuous flexible dam (110) , the continuous dam forming a closed circuit (111) in any way and one or more inputs (112) that communicate with a channel that extends around the closed circuit (111), the channel configured to introduce suction in an internal area. surrounded and defined by an inner perimeter of the closed circuit (111), a protection disposed within the inner perimeter of the closed circuit at least covering or partially covering one or more inlets, so that suction can be applied through one or more inlets and in the interior area of the continuous flexible dam (110), the closed circuit (111) defining the first and second opposite faces extending over the interior area, the dam being sufficiently flexible. flexible (110) so that the first and second faces can bend, while the first and second faces simultaneously and conformationally fit into abutment of the face-to-face sealing coupling of the adjacent body tissue, wherein the one or more inlet is configured to introduce sufficient suction that, with the first and second faces, are in face-to-face sealing engagement with adjacent body tissue, the adjacent body tissue is pulled towards the interior area with the shield preventing the body tissue from adjacent is pulled into one or more inlets to form a seal to one or more body parts, tissue, organ or part thereof and away one or more body parts, tissues, organs or parts thereof.
    [0012]
    12) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 11, characterized in that it further includes the step of applying suction through a suction tube connected to the continuous dam (110) in which the suction tube defines a continuous suction channel with one or more inlets(120).
    [0013]
    13) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 12, characterized in that when the suction tube is attached to the continuous tube of the dam, the suction tube is arranged laterally in the continuous dam.
    [0014]
    14) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 13, characterized in that the continuous dam is flat or substantially flat and a continuous busbar and the suction tube are in a plan or substantially plan of arrangement.
    [0015]
    15) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 11, characterized in that the channel is continuous along an interior of the closed circuit.
    [0016]
    16) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claims 11 to 15, characterized in that the channel comprises an open channel.
    [0017]
    17) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claims 11 to 16, characterized in that the channel comprises a plurality of fenestrations.
    [0018]
    18) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 11, characterized in that the continuous flexible busbar comprises a first compacted configuration for insertion and a second open configuration for retraction, in that a shape memory allows the retractor to revert to the second open configuration after being compressed.
    [0019]
    19) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 11, characterized in that the suction retractor is a conventional or single laparoscopic incision suction retractor.
    [0020]
    20) METHOD FOR RETRACTING A PART OF THE BODY, TISSUE, ORGAN OR PART OF IT BY SUCTION, according to claim 11, characterized in that the circuit is closed with a cross-sectional profile comprising one or more lips.
    [0021]
    21) METHOD FOR MANUFACTURING A SUCTION ROCKER, said manufacturing method including forming a continuous flexible dam (110) which forms a closed circuit (111) of any shape and which defines one or more inlets (120) that open within the closed circuit (111) and opening into a continuous channel (121) extending throughout the interior of the closed circuit (111), wherein the continuous dam (110) comprises opposite first and second walls (112, 113), characterized by the formation of a shield (191) covering one or more inlets (120) to thus manufacture the suction retractor (100).
    [0022]
    22) METHOD FOR THE MANUFACTURING OF A SUCTION RETRACTOR, according to claim 21, characterized in that it forms a continuous flexible dam (110) that forms a closed circuit (111) of any form and defines one or more inputs (120) which communicate with a channel that extends over the closed circuit (111), the channel configured to introduce suction in an internal area surrounded and defined by an internal perimeter of the closed circuit, a protection disposed internally to the internal perimeter of the closed circuit at least covering or partially covering one or more inlets so that suction can be applied through one or more inlets and in the interior area of the continuous dam, the closed circuit (111) defining the opposite first and second faces extending over the area. interior, the dam being flexible enough so that the first and second faces can bend while the first and second faces simultaneously and conformationally fit together. position to the adjacent body tissue in the face-to-face sealing engagement, wherein the one or more inlet being configured to introduce sufficient suction that, with the first and second faces being in the face-to-face sealing engagement with adjacent body tissue, the tissue Adjacent body is drawn into the area with the shield, preventing tissue from the adjacent body from being pulled into one or more entrances.
    [0023]
    23) METHOD FOR THE MANUFACTURING OF A SUCTION REMOTE, according to claim 21, characterized in that it further includes the formation or fixation of a suction tube that defines a suction channel, so that the suction channel and one or more inlets are continuous, in which the suction tube is disposed laterally in the continuous dam.
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    法律状态:
    2017-12-26| B08F| Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]|Free format text: REFERENTE A 3A ANUIDADE. |
    2018-04-03| B08G| Application fees: restoration [chapter 8.7 patent gazette]|
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-12-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-15| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-10| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/05/2011, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |
    优先权:
    申请号 | 申请日 | 专利标题
    AU2010902064|2010-05-13|
    AU2010902064A|AU2010902064A0|2010-05-13|Suction retractor|
    PCT/AU2011/000567|WO2011140612A1|2010-05-13|2011-05-13|Suction retractor|
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