Anastomosis reinforcement patch and surgical device

Abstract

The present invention provides an anastomotic reinforcement patch and a surgical device. The anastomotic reinforcement patch includes: a biological material membrane, which includes a main body portion and an extension portion extending outward from the main body portion, and an incision is provided at one end of the biological material membrane; and a backing, which is detachably connected to the biological material membrane, and a cap portion is provided at one end of the backing, and the cap portion has a receiving space for receiving the extension portion.

Description

Technical Field

[0001] The present disclosure relates to the field of medical devices, and particularly to an anastomotic reinforcement patch and a surgical device. Background Art

[0002] The application of staplers can greatly promote the development of modern surgery and minimally invasive surgery, which is of milestone significance. A stapler can staple tissues with staples while cutting, and is widely used for cutting, suturing or anastomosing visceral tissues such as the intestine, stomach, lung, and pancreas. However, simply using hard stapling with staples cannot completely avoid tissue defects, leakage, and bleeding at the anastomotic site, which may lead to problems such as infection, stenosis, and scarring. Once complications such as anastomotic leakage, bleeding, stenosis, infection, and adhesion occur, secondary surgery may be required to solve them, which seriously affects the quality of life of patients, and even endangers their lives, causing serious economic and psychological burdens to patients.

[0003] In order to reduce postoperative complications, existing methods use staplers with biomaterial membranes. A layer of absorbable biomaterial membrane is assembled on both the cartridge and the anvil surface of the stapler. While completing stapling and cutting, the biomaterial membrane is fixed on the anastomotic site to protect fragile tissues from being torn by staples, or to seal the gaps between bare staples and tissues or blood vessels, thereby strengthening the anastomotic site and reducing the risk of complications such as anastomotic leakage and bleeding. The biomaterial membrane is a sheet structure made of a biodegradable biomaterial, and the biodegradable biomaterial can be a polymer material or an animal-derived tissue material. Preferably, the biodegradable biomaterial can be an animal-derived tissue material that has been treated to remove immunogens, such as submucosal materials, preferably small intestinal submucosal materials, bladder submucosal materials; or for example, visceral envelopes, preferably pericardium.

[0004] However, in the existing method, the anastomotic reinforcement patch needs to be assembled into the cartridge part and the anvil part of the stapler cartridge assembly. Usually, wires are used to detachably connect the reinforcement patch and the backing, and then they are assembled together into the cartridge part and the anvil part. However, since the reinforcement patch is usually made of a flexible material, during the assembly process of the reinforcement patch, due to the operation reasons of the operator and the structural reasons between the reinforcement patch and the backing, problems such as the reinforcement patch not being assembled to the predetermined position of the backing, or the reinforcement patch protruding from the structural gap of the backing often occur.

[0005] In addition, after the reinforcement patch is fixed to the tissue to be treated, the backing can be removed by removing the wires to release the fixation between the reinforcement patch and the backing. However, using wires to fix the biomaterial layer and the backing makes the structure of the reinforcement patch complex, and special placement and fixation are required to cooperate with the stapler operation to ensure that the wires will not knot or become chaotic, which increases the process steps in the production process of the product and affects the production efficiency and the yield of the product.

[0006] In addition, since the staples need to completely cover the area where the reinforcement patch contacts the tissue, the total length of the staples along the anastomotic opening for reinforcement needs to be greater than the length of the patch. In other words, the length of the distal end of the anastomotic line is greater than the length of the cutting line. However, in the structure of the existing reinforcement patch, there is a high possibility that the cutting knife cannot cut off the patch, and other cutting tools need to be used to complete the cutting, which increases the operational complexity.

[0007] Therefore, it is necessary to propose an anastomotic opening reinforcement patch with an improved structure to more effectively cooperate with the stapler for the above operations to solve the above problems. Summary of the Invention

[0008] The first aspect of the present disclosure provides an anastomotic opening reinforcement patch configured to be used in cooperation with the cartridge assembly and / or anvil assembly of a stapler. The anastomotic opening reinforcement patch includes:

[0009] A biomaterial membrane including a main body portion and an extension portion extending outward from the main body portion, and a cut is provided at one end of the biomaterial membrane; and

[0010] A backing detachably connected to the biomaterial membrane, and a cap portion is provided at one end of the backing, and the cap portion has a receiving space for receiving the extension portion.

[0011] In some embodiments, when the anastomotic opening reinforcement patch is used in cooperation with the cartridge assembly of the stapler, at least a part of the extension portion is inserted into the cap portion, and the biomaterial membrane and the backing are detachably sutured by a wire to form a first socket structure, and the first socket structure is sleeved on the cartridge assembly of the stapler to form the anastomotic opening reinforcement patch in the first use state.

[0012] In some embodiments, it further includes:

[0013] When the anastomotic opening reinforcement patch is used in cooperation with the anvil assembly of the stapler, at least a part of the extension portion is inserted into the cap portion, and the biomaterial membrane and the backing are detachably sutured by a wire to form a second socket structure, and the second socket structure is sleeved on the anvil assembly of the stapler to form the anastomotic opening reinforcement patch in the second use state.

[0014] In some embodiments, the depth of the receiving space of the cap portion is less than or equal to the length of the extension portion in the length direction of the biomaterial membrane.

[0015] In some embodiments, the extension portion is formed by extending outward from a part of the first end of the main body portion.

[0016] In some embodiments, the incision is provided on the extension part and partially on the main body part;

[0017] The incision is used to cooperate with the cutting component of the stapler so that the position reached by the front end of the cutting component coincides with the preset cutting position.

[0018] In some embodiments, a guiding port is provided at the second end of the main body part opposite to the first end.

[0019] In some embodiments, the center line of the guiding port in the length direction of the biomaterial membrane coincides with the center line of the incision in the length direction of the biomaterial membrane.

[0020] The second aspect of the present disclosure provides a surgical device, and the surgical device includes:

[0021] A stapler, which includes a cartridge assembly and an anvil assembly; and

[0022] The anastomotic stoma reinforcement and repair patch described in the first aspect of the present disclosure, which is used in cooperation with the stapler.

[0023] In some embodiments, it further includes:

[0024] When the anastomotic stoma reinforcement and repair patch is used in cooperation with the cartridge assembly of the stapler, at least a part of the extension part is inserted into the cap part, and the biomaterial membrane and the backing are detachably sutured by a wire to form a first socket structure, and the first socket structure is sleeved on the cartridge assembly of the stapler to form the anastomotic stoma reinforcement and repair patch in the first use state; and / or

[0025] When the anastomotic stoma reinforcement and repair patch is used in cooperation with the anvil assembly of the stapler, at least a part of the extension part is inserted into the cap part, and the biomaterial membrane and the backing are detachably sutured by a wire to form a second socket structure, and the second socket structure is sleeved on the anvil assembly of the stapler to form the anastomotic stoma reinforcement and repair patch in the second use state.

[0026] In some embodiments, it further includes:

[0027] The depth of the receiving space of the cap part is less than or equal to the length of the extension part in the length direction of the biomaterial membrane.

[0028] Compared with the related art, the present disclosure has at least the following technical effects:

[0029] Compared with the prior art, for the anastomotic stoma reinforcement and repair patch of the present invention, by providing an extension portion on the biological material membrane and providing a receiving space for receiving the extension portion on the backing, at least a part of the extension portion of the biological material membrane can be inserted and received in the cap portion of the backing to form a socket structure, which can effectively avoid problems such as the biological material membrane not being assembled to the predetermined position of the backing or the biological material membrane protruding from the structural gap in the backing, and can also directly perform reinforcement, repair, and anastomosis of the anastomotic stoma after cutting; by providing a cut on the biological material membrane, the cutting position of the cutting assembly of the stapler during cutting treatment of the tissue to be treated is restricted through the cut, so that the position reached by the first end of the cutting assembly (i.e., the front end that first contacts the tissue to be treated during use) coincides with the preset cutting position, which can ensure that the cutting assembly completely cuts the reinforcement and repair patch and can also ensure the complete anastomosis of the anastomotic stoma, without the need to use an additional cutting tool, thereby improving the operation convenience.

[0030] In addition, by providing a guiding port on the reinforcement and repair patch, the shearing force of the cutting assembly during cutting the repair patch can be reduced, and the risk of adverse cutting caused by the curling of the repair patch can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 Schematic diagram of the three-dimensional structure of an example of the anastomotic stoma reinforcement and repair patch provided by the present disclosure;

[0033] Figure 2 For Figure 1 exploded view of the three-dimensional structure of an example of the anastomotic stoma reinforcement and repair patch;

[0034] Figure 3 For Figure 1 exploded view of the three-dimensional structure of an application example of the anastomotic stoma reinforcement and repair patch;

[0035] Figure 4 For Figure 1 schematic diagram of another example of the anastomotic stoma reinforcement and repair patch;

[0036] Figure 5 Solid diagram of the three-dimensional structure of another example of the anastomotic stoma reinforcement and repair patch provided by the present disclosure;

[0037] Figure 6 For Figure 5Exploded view of the three-dimensional structure of the anastomotic stoma reinforcement and repair patch;

[0038] Figure 7 is Figure 5 Schematic diagram of the three-dimensional structure of another application example of the anastomotic stoma reinforcement and repair patch;

[0039] Figure 8 is Figure 5 Schematic diagram of another example of the anastomotic stoma reinforcement and repair patch;

[0040] Figure 9 Schematic diagram of the three-dimensional structure of yet another application example of the anastomotic stoma reinforcement and repair patch provided by the present disclosure. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0042] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "the" and "said" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0043] It should be understood that the term " / and" used herein is only a description of the associated relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0044] It should also be noted that the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or device. Without further limitation, the element defined by the statement "including one" does not exclude the existence of another identical element in the commodity or device including the element.

[0045] The present disclosure provides an anastomotic reinforcement patch configured to be used in cooperation with a cartridge assembly and / or an anvil assembly of a stapler. The anastomotic reinforcement patch includes: a biomaterial membrane including a main body portion and an extension portion extending outward from the main body portion, with an incision provided at one end of the biomaterial membrane; and a backing detachably connected to the biomaterial membrane, with a cap portion provided at one end of the backing, the cap portion having a receiving space for receiving the extension portion.

[0046] By using the anastomotic reinforcement patch provided by the present disclosure, an extension portion is provided on the biomaterial membrane, and a receiving space for receiving the extension portion is provided on the backing. At least a part of the extension portion of the biomaterial membrane can be inserted into and received in the cap portion of the backing to form a socket structure, which can effectively avoid problems such as incorrect operation or assembly misalignment where the biomaterial membrane is not assembled to the predetermined position on the backing or the biomaterial membrane protrudes from the structural gap in the backing. It can also directly perform reinforcement repair and anastomosis of the anastomotic stoma after cutting; by providing an incision on the biomaterial membrane, the cutting position of the cutting assembly of the stapler when cutting the tissue to be treated is restricted by the incision, so that the position reached by the first end (i.e., the front end that first contacts the tissue to be treated during use) of the cutting assembly coincides with the preset cutting position, which can ensure that the cutting assembly completely cuts the reinforcement patch and at the same time ensure complete anastomosis of the anastomotic stoma, without the need to use additional cutting tools, thereby improving the operation convenience.

[0047] In addition, by providing a guiding opening on the reinforcement patch, the shearing force of the cutting assembly when cutting the repair patch can be reduced, and the risk of the repair patch curling and causing unfavorable cutting can be avoided.

[0048] It should be noted that the anastomotic reinforcement patch of the present invention has a wide range of applications and is particularly suitable for the application scenarios of staplers that place and fix the reinforcement patch at a specified position, such as the application scenarios of cutting, suturing or anastomosing visceral tissues such as the intestine, stomach, lung, and pancreas. The optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0049] Embodiment 1

[0050] In order to further optimize the structure of the anastomotic reinforcement patch and accurately assist the stapler in performing operations such as cutting the tissue to be treated and anastomosing the anastomotic stoma, the structures of the components in the anastomotic reinforcement patch are improved, so that accurate positioning cutting can be achieved during operations such as cutting and anastomosing by the stapler, effectively avoiding various problems such as the anastomotic stoma not closing or being torn after anastomosis, the reinforcement patch not being assembled to the predetermined position on the backing, or the reinforcement patch protruding from the structural gap in the backing, and being unable to cut the repair patch during cutting, etc., thereby enabling more effective anastomosis of the anastomotic stoma. The improved structure of the present invention will be specifically described below.

[0051] Figure 1 Schematic three - dimensional structure diagram of an example of the anastomotic reinforcement patch provided by the present disclosure.

[0052] As Figure 1 shown, the present disclosure provides an anastomotic reinforcement patch 10. The anastomotic reinforcement patch 10 (in this embodiment, also referred to as the first anastomotic reinforcement patch 10) includes a first biomaterial film 11 and a first backing 13 detachably connected to the first biomaterial film 11.

[0053] Specifically, the first biomaterial film 11 and the first backing 13 are preferably detachably connected by a wire 60. Specifically, the two side edges in the width direction of the first biomaterial film 11 and the two side edges in the width direction of the first backing 13 are detachably connected along the length direction of the first biomaterial film 11 by the wire 60. See Figure 1 .

[0054] Optionally, the first biomaterial film 11 is used for various clinical soft tissue repair surgeries, etc. For example, when using a stapler to process the tissue to be treated, when using staples for suturing, the first biomaterial film 11 detaches from the first backing 11 and the second backing 21 respectively to fix and repair the anastomotic opening of the tissue to be treated. The first biomaterial film 11 can achieve in - vivo degradation and tissue regeneration, can effectively reinforce and repair the anastomotic opening, and can play a role in protecting the tissue from being torn by staples.

[0055] It should be noted that in the present invention, the first biomaterial film is, for example, an in - vivo degradable polymer material or an in - vivo degradable biomaterial. The polymer materials include, for example, polypropylene, polylactic acid (PLA), polyglycolic acid (PGA), or polylactic - glycolic acid (PLGA), etc.

[0056] Figure 2 For Figure 1 an example of an exploded three - dimensional structure of the anastomotic reinforcement patch.

[0057] As Figure 2 shown, the first biomaterial film 11 includes a first main body portion 111 and a first extension portion 113 extending outward from the main body portion 111. One end of the first biomaterial film 11 is provided with a first incision 115. Among them, the first main body portion 111 is generally strip - shaped, and the orthographic projection on a plane parallel to the horizontal plane is generally rectangular, but is not limited thereto. In other examples, the above orthographic projection can also be a chamfered rectangle or other polygonal shapes. The above is only described as an optional example and should not be construed as a limitation to the present invention.

[0058] It should be noted that in the present invention, one end of a component or part on the left side of the attached drawing plane is referred to as the first end, one end of the component or part on the right side of the attached drawing plane (i.e., the end opposite to the first end) is referred to as the second end, the upper side of the attached drawing plane is referred to as the upper side, and the lower side of the attached drawing plane is referred to as the lower side.

[0059] Specifically, a first extension portion 113 is provided at the first end of the first main body portion 111, that is, the first extension portion 113 is formed by extending outward from a part (in this example, the central part) of the first end of the first main body portion 111. More specifically, the first extension portion 113 inclines outward from the first main body portion 111. For example, as Figure 2 shown, it inclines downward to the left.

[0060] It should be noted that in other examples, the first inclined portion 111 may also be on the same horizontal plane as the first main body portion 111. In addition, there is no particular limitation on the shape of the first extension portion, as long as the shape is easy to plug and unplug. The above is only described as an optional example and should not be construed as a limitation to the present invention.

[0061] In Figure 2 the shown example, the first cut 115 is provided in the first extension portion 113 and partially in the first main body portion 111, and the first cut 115 is provided along the length direction of the first main body portion 111. As can be seen from Figure 2 , the first extension portion 113 is divided into two parts by the first cut 115.

[0062] Furthermore, one end of the first backing 13 is provided with a first cap portion 130, and the first cap portion 130 has a receiving space S1 for receiving the first extension portion 113.

[0063] Optionally, the depth d1 of the receiving space S1 of the first cap portion 130 is less than or equal to the length c of the first extension portion 113 in the length direction of the first biomaterial diaphragm 11. See Figure 2 .

[0064] Preferably, the depth d1 of the receiving space S1 of the first cap portion 130 is less than or equal to 1 / 2 of the length c of the first extension portion 113 in the length direction of the first biomaterial diaphragm 11.

[0065] It should be noted that the above is only described as an optional example and should not be construed as a limitation to the present invention.

[0066] Figure 3 For Figure 1 a three-dimensional structural exploded view of an application example of an anastomosis reinforcement and repair patch. Figure 3The situation of the anastomotic reinforcement patch of the present invention cooperating with the cartridge assembly of the stapler is shown. The improved structure of the anastomotic reinforcement patch of the present invention will be further described below in conjunction with Figure 3 application examples.

[0067] Refer to Figure 1 and Figure 3 , when the first anastomotic reinforcement patch 10 is used in cooperation with the cartridge assembly 20 of the stapler 200, at least a part of the first extension portion 113 is inserted into the first cap portion 130, and the first biomaterial film 11 and the first backing 13 are detachably sutured by a wire 60 to form a first socket structure, and the first socket structure is sleeved on the cartridge assembly 30 of the stapler 200 to form the first anastomotic reinforcement patch in the first use state.

[0068] Specifically, by providing the first cap portion 130 on the first backing 13 and setting the depth of the accommodation space S1 of the first cap portion 130, at least a part of the first extension portion 113 is inserted into the first cap portion 130, that is, the structure of using the first cap portion 130 to accommodate the first extension portion 113 can effectively ensure that the first biomaterial film is inserted into the first cap portion.

[0069] Furthermore, by inserting a part of the first extension portion 113 into the first cap portion 130 and detachably suturing the first biomaterial film 11 and the first backing 13 by a wire 60 to form a first socket structure, it can more effectively ensure that the first biomaterial film is inserted into the first cap portion, and further more effectively avoid problems such as the biomaterial film not being assembled to the predetermined position of the backing or the biomaterial film protruding from the structural gap of the backing, and can also directly perform anastomotic reinforcement repair and anastomosis after cutting.

[0070] In addition, a first incision 115 is further provided on the first main body portion 111, and the first incision 115 is used in cooperation with the cutting assembly 50 of the stapler 200. By restricting the cutting position of the cutting assembly during cutting treatment of the tissue to be treated through the first incision 115, the position reached by the first end of the cutting assembly (i.e., the front end that first contacts the tissue to be treated during use) coincides with the preset cutting position, which can ensure that the cutting assembly completely cuts the reinforcement patch and can also ensure the complete anastomosis of the anastomotic opening, without the need to use an additional cutting tool, thereby improving the operation convenience.

[0071] Figure 4 For Figure 1 a schematic diagram of another example of the anastomotic reinforcement patch.

[0072] Figure 4 The example ofFigure 3 The difference from the example is that a first guiding opening 117 is provided at the second end of the first main body portion 111 of the first biomaterial diaphragm 11 opposite to the first end.

[0073] Specifically, the first guiding opening 117 is a through hole penetrating the first main body portion 111, and the center line of the first guiding opening 117 along the length direction of the first main body portion 111 coincides with the center line of the first incision 115 along the length direction of the first main body portion 111. The first guiding opening 117 is used to guide the cutting assembly of the stapler to perform a cutting operation, which can reduce the shearing force when the cutting assembly cuts the patch and avoid the risk of adverse cutting caused by the curling of the patch.

[0074] It should be noted that since Figure 4 the first backing in the example of Figure 1 is substantially the same as the structure of the first backing in

[0075] Example 2

[0076] Referring to Figures 5 to 9 will illustrate another example of the anastomosis reinforcement patch of the present invention.

[0077] It should be noted that in this embodiment, the anastomosis reinforcement patch (also referred to as the second anastomosis reinforcement patch 20 in this embodiment) is used in cooperation with the anvil assembly of the stapler.

[0078] Figure 5 is a three-dimensional structural solid diagram of another example of the anastomosis reinforcement patch provided by the present disclosure. Figure 6 is Figure 5 a three-dimensional structural exploded view of the anastomosis reinforcement patch of

[0079] As Figure 5 and Figure 6 shown, the second anastomosis reinforcement patch 20 includes a second biomaterial diaphragm 21 and a second backing 23, and the second backing 23 is detachably connected to the second biomaterial diaphragm 21.

[0080] Optionally, the second biomaterial diaphragm 21 and the second backing 23 are detachably connected by a wire 61. Specifically, the two side edges in the width direction of the second biomaterial diaphragm 21 and the two side edges in the width direction of the second backing 23 are detachably connected along the length direction of the second biomaterial diaphragm 21 by the wire 61.

[0081] Specifically, the second biomaterial membrane 21 includes a second main body portion 211 and second extension portions 213 extending outward from the second main body portion 211. The second extension portions 213 are divided into two parts by the second incision 215, that is, the second extension portions 213 are two protruding portions protruding outward from the second main body portion 213.

[0082] Further, one end (i.e., the first end) of the second backing 23 is provided with a second cap portion 230, and the second cap portion 230 has a receiving space S2 for receiving the second extension portion 213.

[0083] Optionally, the depth d2 of the receiving space S1 of the second cap portion 230 is less than or equal to the length c2 of the second extension portion 213 in the length direction of the second biomaterial membrane 11. Refer to Figure 6 .

[0084] Preferably, the depth d2 of the receiving space S1 of the second cap portion 230 is less than or equal to 1 / 2 of the length c2 of the second extension portion 213 in the length direction of the second biomaterial membrane 11.

[0085] During assembly and use, at least a part of the second extension portion 213 is inserted into the second cap portion 230, and the second biomaterial membrane 21 and the second backing 23 are detachably sutured by a wire 61 to form a second socket structure (refer to 7).

[0086] It should be noted that Figure 5 the second biomaterial membrane 21 and the second backing 23 in the illustrated example Figure 1 are substantially the same as the first biomaterial membrane 11 and the first backing 13 in the illustrated example, and the functions and preparation materials of the second biomaterial membrane 21 in this Embodiment 2 and the first biomaterial membrane 11 in Embodiment 1 are substantially the same. Therefore, the description of their same parts is omitted.

[0087] Figure 7 For Figure 5 a three-dimensional structural schematic diagram of another application example of the anastomotic stoma reinforcement and repair patch.

[0088] Figure 7 It shows the situation where the anastomotic stoma reinforcement and repair patch (i.e., the second anastomotic stoma reinforcement and repair patch) of the present invention is used in cooperation with the anvil assembly of the stapler.

[0089] As Figure 7As shown, when the second anastomotic reinforcement patch 20 is used in cooperation with the anvil assembly 40 of the stapler 200, at least a part of the second extension portion 213 is inserted into the second cap portion 230, and the second biomaterial membrane 21 and the second backing 23 are detachably sutured by a wire 61 to form a second socket structure, and the second socket structure is sleeved on the anvil assembly 40 of the stapler 200 to form an anastomotic reinforcement patch in the second use state.

[0090] Through the above-mentioned second socket structure, it is possible to more effectively ensure that the second biomaterial membrane is inserted into the second cap portion, and further more effectively avoid misoperation problems or assembly misalignment problems such as the biological material membrane not being assembled to the predetermined position of the backing, or the biological material membrane protruding from the structural gap of the backing. It is also possible to directly perform reinforcement repair and anastomosis of the anastomotic stoma after cutting.

[0091] Optionally, the length a of the second incision 215 in the length direction of the second main body portion 211 is less than 1 / 2 of the length b of the second main body portion 211 in its length direction. For details, please refer to Figure 8 .

[0092] Preferably, the length a of the second incision 115 in the length direction of the second main body portion 211 is less than 1 / 2 of the length b of the second main body portion 211 in its length direction.

[0093] Through the setting of the second incision and its length, it is possible to further ensure that the cutting component completely cuts off the reinforcement patch, and at the same time ensure the complete anastomosis of the anastomotic stoma, without the need to use additional cutting tools, thereby improving the operation convenience.

[0094] Figure 8 For Figure 5 a schematic diagram of another example of the anastomotic reinforcement patch.

[0095] Figure 8 The example of Figure 5 differs from the example of

[0096] in that a second guiding port 217 is provided at the second end of the second main body portion 211 of the second biomaterial membrane 21 opposite to the first end.

[0097] Furthermore, the center line of the second guiding opening 217 along the length direction of the second main body portion 211 coincides with the center line of the second incision 215 along the length direction of the second main body portion 211. The second guiding opening 217 is used to guide the cutting assembly of the stapler to perform a cutting operation, which can further reduce the shearing force when the cutting assembly cuts the repair patch and avoid the risk of adverse cutting caused by the curling of the repair patch.

[0098] Embodiment 3

[0099] The present invention also provides a surgical device for cutting, anastomosing and other treatments on tissues to be treated. The following will refer to Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 9 to illustrate the surgical device of the present invention.

[0100] Specifically, the surgical device includes a stapler 200 and an anastomotic orifice reinforcement repair patch used in cooperation with the stapler 200. Among them, the stapler 200 includes a cartridge assembly 30 and an anvil assembly 40.

[0101] In the first embodiment, the anastomotic orifice reinforcement repair patch is the first anastomotic reinforcement repair patch 11 in Embodiment 1. That is, the anastomotic orifice reinforcement repair patch is only used for sleeving the cartridge assembly 30. For details, please refer to Figure 3 .

[0102] As Figure 3 shown, when the first anastomotic orifice reinforcement repair patch 11 is used in cooperation with the cartridge assembly 30 of the stapler 200, at least a part of the first extension portion 113 is inserted into the first cap portion 130, and the first biomaterial film 11 and the first backing 13 are detachably sutured by a wire 60 to form a first sleeved structure, and the first sleeved structure is sleeved on the cartridge assembly 30 of the stapler 200 to form an anastomotic orifice reinforcement repair patch in the first use state.

[0103] Optionally, the depth d1 of the receiving space S1 of the first cap portion 130 is less than or equal to the length c of the first extension portion 113 in the length direction of the first biomaterial film 11. For details, please refer to Figure 2 .

[0104] Preferably, the depth d1 of the receiving space S1 of the first cap portion 130 is less than or equal to 1 / 2 of the length c of the first extension portion 113 in the length direction of the first biomaterial film 11.

[0105] In addition, a first incision 115 is further provided on the first main body portion 111, and the first incision 115 is used for cooperation with the cutting assembly 50 of the stapler 200.

[0106] Specifically, the length of the first incision 115 in the length direction of the first main body 111 is less than 1 / 2 of the length of the first main body 111 in its length direction.

[0107] Preferably, the length of the first incision 115 in the length direction of the first main body 111 is less than 1 / 3 of the length of the first main body 111 in its length direction.

[0108] The cutting position of the cutting assembly during cutting treatment of the tissue to be treated is restricted by the first incision 115, so that the position reached by the first end of the cutting assembly (i.e., the front end that first contacts the tissue to be treated during use) coincides with the preset cutting position, which can ensure that the cutting assembly completely cuts off the reinforcement patch and can also ensure the complete anastomosis of the anastomotic stoma, without the need to use an additional cutting tool, thereby improving the operation convenience.

[0109] It should be noted that since the structure of the first anastomotic reinforcement patch 11 in the first embodiment is substantially the same as that of the first anastomotic reinforcement patch 11 in Embodiment 1, the description of its same parts is omitted.

[0110] In the second embodiment, the anastomotic stoma reinforcement patch is the second anastomotic reinforcement patch 21 in Embodiment 2. That is, the anastomotic stoma reinforcement patch is only used for sleeving the anvil assembly 40. For details, please refer to Figure 7 .

[0111] As Figure 7 shown, when the second anastomotic stoma reinforcement patch 20 is used in cooperation with the anvil assembly 40 of the stapler 200, at least a part of the second extension portion 213 is inserted into the second cap portion 230, and the second biomaterial membrane 21 and the second backing 23 are detachably sutured by a wire 61 to form a second sleeved structure, and the second sleeved structure is sleeved on the anvil assembly 40 of the stapler 200 to form an anastomotic stoma reinforcement patch in the second use state.

[0112] It should be noted that since the structure of the second anastomotic stoma reinforcement patch 20 in the second embodiment is substantially the same as that of the second anastomotic reinforcement patch 21 in Embodiment 2, the description of its same parts is omitted.

[0113] In the third embodiment, the anastomotic stoma reinforcement patch includes the first anastomotic reinforcement patch 11 in Embodiment 1 and the second anastomotic reinforcement patch 21 in Embodiment 2. That is, the anastomotic stoma reinforcement patch is used for sleeving the cartridge assembly 30 and the anvil assembly 40. For details, please refer to Figure 9 .

[0114] As Figure 9As shown, when the first anastomotic stoma reinforcement patch 11 is used in cooperation with the cartridge assembly 30 of the stapler 200, and the second anastomotic stoma reinforcement patch 20 is used in cooperation with the anvil assembly 40 of the stapler 200, the first biomaterial film 11 and the first backing 13 are detachably sutured by a wire 60 to form a first socket structure. At the same time, the second biomaterial film 21 and the second backing 23 are detachably sutured by a wire 61 to form a second socket structure.

[0115] Specifically, at least a part of the first extension portion 113 is inserted into the first cap portion 130, and the first biomaterial film 11 and the first backing 13 are detachably sutured by a wire 60 to form a first socket structure. The first socket structure is sleeved on the cartridge assembly 30 of the stapler 200 to form an anastomotic stoma reinforcement patch in the first use state. Moreover, at least a part of the second extension portion 213 is inserted into the second cap portion 230, and the second biomaterial film 21 and the second backing 23 are detachably sutured by a wire 61 to form a second socket structure. The second socket structure is sleeved on the anvil assembly 40 of the stapler 200 to form an anastomotic stoma reinforcement patch in the second use state.

[0116] In this third embodiment, the second biomaterial film 21 is provided with a second incision 215 corresponding to the position of the first incision 115. By jointly cooperating with the cutting assembly of the stapler through the corresponding first incision and second incision to perform related operations, it can further ensure that the cutting assembly completely cuts off the reinforcement patch, and at the same time can ensure the complete anastomosis of the anastomotic stoma, without the need to use an additional cutting tool, thereby improving the operation convenience.

[0117] Regarding the lengths of the first incision 115 and the second incision 215, the length of the first incision 115 in the length direction of the first main body portion 111 is equal to the length of the second incision 215 in the length direction of the second main body portion 211.

[0118] Specifically, the length of the first incision 115 in the length direction of the first main body portion 111 is less than 1 / 2 of the length of the first main body portion 111 in its length direction.

[0119] Preferably, the length of the first incision 115 in the length direction of the first main body portion 111 is less than 1 / 3 of the length of the first main body portion 111 in its length direction.

[0120] In another embodiment, a first guiding opening 117 is provided at the second end of the first main body portion 111 opposite to the first end, and a second guiding opening 217 corresponding to the position of the first guiding opening 117 is provided on the second main body portion 211.

[0121] In this embodiment, the center line of the first guiding opening 117 in the length direction of the first biomaterial membrane 11 (i.e., the first main body portion 111) coincides with the center line of the first incision 115 in the length direction of the first biomaterial membrane (i.e., the first main body portion 111). Correspondingly, the center line of the second guiding opening 217 in the length direction of the second biomaterial membrane 21 (i.e., the second main body portion 211) coincides with the center line of the second incision 215 in the length direction of the second biomaterial membrane 21 (i.e., the second main body portion 211).

[0122] It should be noted that the above is only for illustrative purposes as an optional example and should not be construed as a limitation on the present invention.

[0123] Compared with the prior art, the surgical device of the present invention can effectively avoid problems such as the failure operation problem or assembly misalignment problem that the biomaterial membrane is not assembled to the predetermined position of the backing or the biomaterial membrane protrudes from the structural gap in the backing by improving the structure of the anastomotic orifice reinforcement patch. It can also directly perform reinforcement repair and anastomosis of the anastomotic orifice after cutting; by restricting the cutting position of the cutting component of the stapler during cutting treatment of the tissue to be treated through the incision, the position reached by the first end (i.e., the front end that first contacts the tissue to be treated during use) of the cutting component coincides with the preset cutting position, which can ensure that the cutting component completely cuts off the reinforcement patch and at the same time ensure the complete anastomosis of the anastomotic orifice, without the need to use an additional cutting tool, thereby improving the operation convenience; by providing a guiding opening in the reinforcement patch, the shearing force of the cutting component when cutting the repair patch can be reduced, and the risk of adverse cutting caused by the curling of the repair patch can be avoided.

[0124] Finally, it should be noted that the embodiments in this specification are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the system or device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0125] The above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An anastomotic reinforcement patch configured to be used in cooperation with a staple cartridge assembly and / or an anvil assembly of a stapler, characterized in that, The anastomotic stoma reinforcement patch includes: a biomaterial membrane including a main body portion and an extension portion extending outward from the main body portion, with an incision provided at one end of the biomaterial membrane; the incision is provided in the extension portion and partially in the main body portion; the incision is used to cooperate with the cutting assembly of the stapler so that the position reached by the front end of the cutting assembly coincides with a preset cutting position; and a backing, detachably connected to the biomaterial membrane, with a cap portion provided at one end of the backing, and the cap portion having a receiving space for receiving the extension portion. Wherein, when the anastomotic stoma reinforcement patch is used in cooperation with the cartridge assembly and / or the anvil assembly of the stapler, at least a part of the extension portion is inserted into the cap portion.

2. The anastomotic reinforcement patch according to claim 1, wherein, The biomaterial membrane and the backing are detachably sutured by a wire to form a first socket structure, and the first socket structure is sleeved on the cartridge assembly of the stapler to form the anastomotic stoma reinforcement patch in the first use state.

3. The anastomotic reinforcement and repair patch according to claim 1, wherein, The biomaterial membrane and the backing are detachably sutured by a wire to form a second socket structure, and the second socket structure is sleeved on the anvil assembly of the stapler to form the anastomotic stoma reinforcement patch in the second use state.

4. The anastomotic reinforcement and repair patch according to claim 2 or 3, wherein, The depth of the receiving space of the cap portion is less than or equal to the length of the extension portion in the length direction of the biomaterial membrane.

5. The anastomotic reinforcement patch according to claim 1, wherein, The extension portion is formed by extending outward from a part of the first end of the main body portion.

6. The anastomotic reinforcement patch according to claim 5, wherein, A guiding port is provided at the second end of the main body portion opposite to the first end.

7. The anastomotic stoma reinforcement and repair patch according to claim 6, wherein, The center line of the guiding port in the length direction of the biomaterial membrane coincides with the center line of the incision in the length direction of the biomaterial membrane.

8. A surgical device, characterized in that, The surgical device includes: a stapler including a cartridge assembly and an anvil assembly; and the anastomotic stoma reinforcement patch according to claim 1, which is used in cooperation with the stapler.

9. The surgical device according to claim 8, wherein, Further includes: When the anastomotic stoma reinforcement patch is used in cooperation with the cartridge assembly of the stapler, at least a part of the extension portion is inserted into the cap portion, and the biomaterial membrane and the backing are detachably sutured by a wire to form a first socket structure, and the first socket structure is sleeved on the cartridge assembly of the stapler to form the anastomotic stoma reinforcement patch in the first use state; and / or when the anastomotic stoma reinforcement patch is used in cooperation with the anvil assembly of the stapler, at least a part of the extension portion is inserted into the cap portion, and the biomaterial membrane and the backing are detachably sutured by a wire to form a second socket structure, and the second socket structure is sleeved on the anvil assembly of the stapler to form the anastomotic stoma reinforcement patch in the second use state.

10. The surgical device according to claim 8, wherein, Further includes: The depth of the receiving space of the cap portion is less than or equal to the length of the extension portion in the length direction of the biomaterial membrane.

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