Anastomotic reinforcement and repair patch

Abstract

The present disclosure provides an anastomotic reinforcement patch, comprising: a backing, a patch, and a suture. The backing has a first end and a second end opposite in direction in the length direction, the first end is provided with an end cap, and a suture limiting structure is provided on the second end. The suture limiting structure includes an opening and / or a slot for limiting the suture. The backing has a first surface and a second surface facing away from each other in the thickness direction; the patch is disposed on the first surface, and the patch is located between the end cap and the opening or the slot, and the patch is detachably connected to the backing; the suture includes a suture segment and a traction segment. The suture segment is used for suturing the patch and the backing, and the traction segment passes through the opening and / or the side slot. Wherein, the traction segment is pulled under an external force to separate the suture segment from the patch and the backing, so that the patch is separated from the backing.

Description

Technical Field

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

[0002] The application of staplers has greatly promoted the development of modern and minimally invasive surgery, and 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 stapling with rigid staples cannot completely avoid leakage and bleeding of the anastomotic tissue. This is because the staples are of a rigid structure and cannot fully match the flexibility of soft tissues, resulting in leakage and bleeding at the staple holes. In addition, due to differences in the properties of soft tissues in different regions, some soft tissues such as the lung have low strength, and there may be a risk of anastomotic tear. To solve the above problems, an anastomotic reinforcement patch can be used in combination with a stapler, so that while the stapler cuts and closes the wound surface, the reinforcement patch is fixed to the wound surface to block the staple holes of the staples and improve the strength of the wound surface, thereby avoiding leakage and bleeding of the wound surface.

[0003] However, due to the operation reasons of the operator and the high degree of freedom of the traction section, there is a risk of entanglement between the suture and the stapler or the anastomotic reinforcement patch itself during the installation process, which may make it difficult to separate the patch and the backing during the surgical operation and affect the surgical process. Summary of the Invention

[0004] The purpose of the present disclosure is to provide an anastomotic reinforcement patch for solving the technical problems in the related art. The specific solution is as follows:

[0005] An embodiment of the present disclosure provides an anastomotic reinforcement patch, including: a backing, the backing having a first end and a second end opposite in the length direction, the backing having a first surface and a second surface facing away from each other in the thickness direction; a patch, disposed on the first surface, the patch being detachably connected to the backing; and a suture, the suture including a suture section and a traction section, at least a part of the suture section being sutured to the patch and the backing to detachably connect the patch to the backing, the traction section being pulled under an external force to separate at least a part of the suture section from the patch and the backing to separate the patch from the backing, wherein a suture limiting structure is provided at the second end of the backing, and the traction section passes through the suture limiting structure such that a part of the traction section is located on the first surface side of the backing and another part of the traction section is located on the second surface side of the backing.

[0006] In some embodiments, the patch has a first state in which at least a part of the patch is connected to the backing, and a second state in which the patch is separated from the backing. The free end of the traction section is pulled to convert the patch from the first state to the second state with respect to the backing.

[0007] In some embodiments, the limiting structure includes an opening and / or a slot.

[0008] In some embodiments, the traction section can extend in the length direction of the backing and pass through the opening and / or the slot.

[0009] In some embodiments, the slot includes: a side slot provided at the second end of the backing, the length extension direction of the side slot being parallel to or obliquely intersecting with the width direction of the backing; a longitudinal slot provided at the second end of the backing, the length extension direction of the longitudinal slot being the same as the length direction of the backing.

[0010] In some embodiments, the traction section can pass through the opening or the slot from the first surface of the backing and extend to the second surface of the backing, and the free end of the traction section extends in the direction of the second end on the second surface.

[0011] In some embodiments, the traction section can pass through the opening or the slot from the second surface of the backing and extend to the first surface of the backing, and the free end of the traction section extends in the direction of the second end of the backing on the first surface.

[0012] In some embodiments, the limiting structure includes: an opening slot, which includes an opening and a slot extending from the opening to the edge away from the first end in the direction of the second end.

[0013] In some embodiments, the suture includes at least two sutures, and the free ends of the traction sections of the at least two sutures are connected to each other.

[0014] In some embodiments, the anastomotic stoma reinforcement patch further includes: an end cap provided at the first end of the backing for accommodating the end of the stapler.

[0015] The above solutions of the embodiments of the present disclosure have at least the following beneficial effects compared with the related art:

[0016] The back of the anastomosis reinforcement patch provided by the present disclosure is provided with openings and / or side slots, which can limit the freedom degree of the traction section of the suture. In practical applications, doctors can externally pull the free end of the traction section passing through the openings and / or side slots to separate the suture section from the patch and the back, so as to separate the patch from the back. The back with openings and / or side slots provided by the present disclosure facilitates doctors to control the anastomosis reinforcement patch, improving the accuracy and timeliness of the operation.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Brief Description of the Drawings

[0018] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings in the following description are only 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. In the drawings:

[0019] Figure 1 is a schematic structural view of an anastomosis reinforcement patch shown according to the related art.

[0020] Figure 2 is a schematic structural view of an anastomosis reinforcement patch with an opening structure shown according to an exemplary embodiment.

[0021] Figure 3 is a schematic structural view of the first side of an anastomosis reinforcement patch with an opening structure and the free ends of two traction sections connected shown according to an exemplary embodiment.

[0022] Figure 4 is a schematic structural view of the second side of an anastomosis reinforcement patch with an opening structure and the free ends of two traction sections connected shown according to an exemplary embodiment.

[0023] Figure 5 is a schematic structural view of the first side of an anastomosis reinforcement patch with a side slot structure shown according to an exemplary embodiment.

[0024] Figure 6 is a schematic structural view of the second side of an anastomosis reinforcement patch with a side slot structure shown according to an exemplary embodiment.

[0025] Figure 7 is a schematic structural view of the first side of an anastomosis reinforcement patch with an opening slot structure shown according to an exemplary embodiment.

[0026] Reference numerals:

[0027] Backing 100’, repair patch 200’, suture 300’;

[0028] Backing 100, opening 101, side slot 102, opening slot 103, first end 110, end cap 111, second end 120;

[0029] Repair patch 200, cutter guiding groove 201, suture 300, suture segment 310, traction segment 320, free end 321. Detailed implementation manners

[0030] 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. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0031] 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, and other quantifiers are similar thereto.

[0032] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe..., these... should not be limited to these terms. These terms are only used to distinguish.... For example, without departing from the scope of the embodiments of the present disclosure, the first... may also be referred to as the second..., and similarly, the second... may also be referred to as the first.... In addition, the terms “first”, “second”, “third”, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] It should be understood that the term “and / or” used herein is only a description of the association 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. The singular forms “a”, “the” and “said” are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0034] It can be further understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0035] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Depending on the context, the words "if" and "when" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrases "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0037] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a commodity or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the commodity or device comprising said element.

[0038] In the related art, as Figure 1 shown, the anastomotic reinforcement patch includes: a backing 100', a patch 200' and two sutures 300'.

[0039] Two sutures 300' connect the backing 100' and the patch 200' together, making the backing 100' and the patch 200' an integral whole, and the two sutures 300' have relatively long traction segments. During use, the patch 200' is installed on the stapler, and then the stapler enters the body through the trocar and reaches the lesion. The stapler jaws are closed to clamp the tissue to be anastomosed. Then, the traction segment is pulled, so that the patch 200' is completely separated from the backing 100'. Since the suture 300' and the backing 100' have a fixed connection point at the front end, at this time, the backing 100' is pulled backward by the suture 300'. Next, the stapler is fired to cut the tissue with the stapler and form an anastomotic opening; while forming the anastomotic opening, the stapler fixes the patch 200' to the anastomotic opening and cuts it into two parts. Then, the stapler jaws are loosened, and then the stapler is withdrawn from the patient's body, and the traction segment is continuously pulled to remove the backing 100'. Thus, the operation is completed, and the purpose of repairing the anastomotic opening with the patch 200' is achieved.

[0040] However, due to the excessive length of the traction segment, during the installation process, the suture 300' may be entangled with the stapler or with the patch for reinforcing the anastomotic opening itself, resulting in the premature detachment or difficult detachment of the patch 200' from the backing 100', which affects the surgical process.

[0041] In view of this, the optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0042] The present disclosure provides a patch for reinforcing an anastomotic opening, including: a backing 100, a patch 200, and a suture 300.

[0043] As Figure 2 shown, the backing 100 has a first end 110 and a second end 120 with opposite directions in the length direction. A end cap 111 is provided on the first end 110. The end cap 111 has at least a unilateral opening facing the direction of the second end 120. The end cap 111 is used to accommodate the end of the stapler, so that the end of the stapler abuts against the end cap 111 and is wrapped within the end cap 111, avoiding the direct contact between the end of the stapler and human tissues; at the same time, avoiding the curling of the patch 200 when the stapler enters the trocar.

[0044] Preferably, the end cap 111 is detachably connected to the backing 100, and a part of the suture 300 is used as the fixing means for the end cap 111 and the backing 100. When the free end of the suture 300 is pulled, after the patch 200 is separated from the backing 100, the suture connection structure between the end cap 111 and the backing 100 is disassembled to release the end of the stapler. The suture 300 is sutured to the end cap 111 in a detachable manner, and the suturing method can be the same as the suturing method at the patch 200.

[0045] A suture limiting structure is provided on the second end 120 of the backing 100. The limiting structure includes an opening 101 and / or a slot. For example, the slot can be a side slot 102. At least a part of the suture 300 passes through the opening 101 and / or the side slot 102 to prevent the suture 300 from being entangled with the stapler or the anastomotic reinforcement patch, which may cause the patch 200 to be detached from the backing 100 prematurely or difficult to detach, thus preventing normal repair from being completed.

[0046] In some embodiments, the backing 100 has a first surface and a second surface that face away from each other in the thickness direction. The patch 200 is disposed on the first surface. Among them, the patch 200 is located between the end cap 111 and the suture limiting structure, and the patch 200 is detachably connected to the backing 100.

[0047] It should be noted that for laparoscopic staplers, using an anastomotic reinforcement patch with an end cap 111 helps the stapler with the patch 200 to smoothly enter the body cavity through the puncture instrument. For linear staplers used in open surgery, an anastomotic reinforcement patch without an end cap 111 can also be used. This is because for open surgery, there is a large operating space and it does not pass through the trocar, so the risk of the reinforcement patch curling is relatively low, and an anastomotic reinforcement patch without an end cap 111 can be used.

[0048] When the anastomotic reinforcement patch is sleeved on the stapler and the stapler with the patch 200 is inserted into the human body cavity, the patch 200 is used to repair the anastomotic site to protect the fragile tissue from being torn, thereby strengthening the anastomotic site and reducing the risks such as anastomotic bleeding, air leakage, and fluid leakage.

[0049] In some embodiments, the suture 300 includes a suture segment 310 and a traction segment 320. At least a part of the suture segment 310 is used to suture the patch 200 to the backing 100, so that the patch 200 is detachably connected to the backing 100. The traction segment 320 extends from the suture segment 310 towards the second end 120 and passes through the opening 101 and / or the side slot 102. By pulling the free end 321 of the traction segment 320 under an external force, at least a part of the suture segment 310 can be separated from the patch 200 and the backing 100. Further, the backing 100 can be separated from the patch 200.

[0050] Specifically, a repair patch 200 is disposed on the first surface of the backing 100. The suture segment 310 sutures the repair patch 200 and the backing 100 in a detachable manner, so that the repair patch 200 and the backing 100 are connected in a detachable manner. An end cap 111 is disposed at the first end 110 of the backing 100 for receiving the end of the stapler. Preferably, at least a part of the repair patch 200 can be received.

[0051] Preferably, one end of the suture 300 is sutured to the backing in a non-detachable manner, so as to remain connected to the backing 100 after the suture segment 310 is detached, thereby pulling the backing 100 from the body cavity to the outside of the body. Preferably, if the suture 300 is completely separated from the backing 100, the backing 100 can be taken out of the body through other medical devices, such as medical forceps or clips.

[0052] Preferably, at least a part of the suture segment 310 is connected to the end cap 111, and at least a part of the repair patch 200 extends into the end cap 111 for guiding the stapler into the end cap 111. Among them, the suture segment 310 of the suture 300 detachably disposes the end cap 111 on the backing 100. When the suture 300 is detached, the suture connection between the end cap 111 and the backing 100 can be loosened, thereby releasing the sleeved end of the stapler.

[0053] Further, the traction segment 320 extends from the suture segment 310 towards the second end 120 and passes through the opening 101 and / or the side slot 102. By pulling the traction segment 320 under an external force, the suture segment 310 can be separated from the backing 100, and further, the repair patch 200 and the backing 100 can be separated.

[0054] It can be understood that since the suture 300 connecting the backing 100, the repair patch 200 and the end cap 111 is the same suture 300, according to the description of the above embodiments, by pulling the free end 321 of the traction segment 320 under an external force, the suture segment 310 can be separated from the backing 100, and further, the backing 100, the repair patch 200 and the end cap 111 can be separated.

[0055] In some embodiments, the repair patch 200 and the backing 100 have a first state and a second state.

[0056] Specifically, when the repair patch 200 and the backing 100 are in the first state, at least a part of the repair patch 200 is connected to the backing 100. At this time, the anastomotic orifice reinforcement repair patch is sleeved on the stapler or at least a part of the stapler is wrapped.

[0057] When the patch 200 and the backing 100 are in the second state, the patch 200 and the backing 100 are separated from each other, and the anastomosis reinforcement patch is repaired to the affected area of the patient. The backing 100 and the stapler can be withdrawn from the patient's body.

[0058] When the patch 200 and the backing 100 are in the first state, by applying an external force to pull the free end 321 of the traction section 320, the connection state of the patch 200 and the backing 100 can be changed from the first state to the second state.

[0059] In some embodiments, the slotted openings include: side slotted openings 102 and / or longitudinal slotted openings.

[0060] The side slotted openings 102 are disposed at the second end 120 of the backing 100, and the length extension direction of the side slotted openings 102 is parallel to or obliquely intersects with the width direction of the backing 100; the longitudinal slotted openings are disposed at the second end 120 of the backing 100, and the length extension direction of the longitudinal slotted openings is the same as the length direction of the backing 100.

[0061] In some embodiments, the free end 321 of the traction section 320 extends outward from the first surface of the backing 100 and passes through the opening 101 and / or the side slotted openings 102.

[0062] As Figure 2 shown, an opening 101 is provided on the second end 120 of the backing 100. The free end 321 of the traction section 320 passes through the opening 101 and extends towards the edge of the second end 120. The setting of the opening 101 restricts the movement freedom of the suture 300 to a certain extent, avoiding the suture 300 being wound around the stapler or the anastomosis reinforcement patch, resulting in the premature detachment or difficult detachment of the patch 200 from the backing 100 and unable to complete normal repair.

[0063] In practical applications, a doctor can apply a pulling force to the free end 321 of the traction section 320, thereby changing the connection state of the patch 200 and the backing 100 from the first state to the second state.

[0064] In some embodiments, as Figure 3As shown, two sets of suture lines 300 are provided on the patch 200. The free ends 321 of the two traction segments 320 of the two sets of suture lines 300 are exposed from the first surface of the backing 100. The two free ends 321 extend respectively to the two side edges of the backing 100 and pass through the opening 101 on the second surface. The setting of the opening 101 restricts the movement freedom of the suture line 300 to a certain extent. And in this embodiment, the free ends 321 of the traction segments 320 can be left on the second surface of the backing 100. When separating the suture line 300 from the backing 100 and the patch 100, it can avoid the suture line 300 from being entangled with the stapler or the anastomosis reinforcement patch, resulting in the premature separation or difficult separation of the patch 200 from the backing 100 and unable to complete normal repair.

[0065] In some embodiments, the suture line 300 includes at least two suture lines 300, and the free ends 321 of the traction segments 320 of the at least two suture lines 300 are connected to each other.

[0066] As Figure 3 、 Figure 4 As shown, the free ends 321 of the traction segments 320 of the two suture lines 300 are connected. The connection method can be knot fixation or any other connection method that can connect the two suture lines 300. The two connected knots have the same force tendency. Pulling any one of the knots can convert the backing 100 and the patch 200 from the first state to the second state.

[0067] It should be specifically noted that when pulling the two interconnected suture lines 300, the pulling forces received by the two suture lines 300 are basically the same. This is because when usually pulling the traction segment 320, although the traction segments 320 on both sides are pulled simultaneously but each is independently stressed. Due to the different lengths of the traction segments 320 on the inner and outer arcs, the disassembly speeds are also different, which is likely to cause uneven stress on both sides of the patch. And through the two interconnected suture lines 300, the traction segments 320 on both sides can be stressed simultaneously. Although the disassembly speeds of the traction segments 320 on both sides of the patch 200 are different, the traction line 320 on the side with a faster disassembly speed can compensate for the traction segment 320 on the side with a slower disassembly speed, so as to realize that the two traction segments 320 are pulled simultaneously and the stress is uniform. Therefore, when pulling the suture line 300, the stability of the connection between the patch 200 and the anastomosis can be ensured, and the accurate positioning of the patch 200 on the stapler can be avoided from being affected due to uneven stress during suture removal.

[0068] In some embodiments, side slots 102 are provided on the backing 100, as Figure 5As shown, the length extension direction of the side slot 102 is parallel to the width direction of the backing 100. The length of the side slot 102 is greater than 0.25 times the width of the backing 100 and less than 0.5 times the width of the backing 100. The width of the side slot 102 is greater than the wire width of the traction wire and less than 1.5 times the wire width of the traction wire. The free end 321 of the traction section 320 can pass through the side slot 102 to limit the position of the traction section 320, so that the free end 321 of the traction section 320 is exposed from the second surface of the backing 100, avoiding that when the suture 300 is separated from the backing 100, the free end 321 of the traction section 320 winds around the anastomosis reinforcement patch, causing the suture 300 to be separated from the backing 100 in advance or unable to be separated.

[0069] Figure 5 , Figure 6 As shown, the free end of the traction section 320 passes through the side slot 102 from the first surface of the backing 100 and extends to the second surface of the backing 100. The free end 321 of the traction section 320 extends towards the edge of the second end 120 on the second surface.

[0070] In practical applications, by pulling the free end 321 of the traction section 320 under the action of an external force, the suture section 310 can be separated from the backing 100, and the patch 200 can be separated from the backing 100.

[0071] It should be separately noted that the present disclosure does not limit the winding method of the free end 321 of the traction section 320. For example, Figure 2 , Figure 5 As shown, after the free end 321 of the traction section 320 passes through the opening 101 and / or the side slot 102 from the first surface of the backing 100 and is exposed on the second surface of the backing 100, it extends towards the edge of the second end 120 away from the first end 110.

[0072] For example, Figure 3 , Figure 4 As shown, the free end 321 of the traction section 320 can also wind from the first surface of the backing 100 to the second surface of the backing 100 and pass through the opening 101 from the second surface, and the free end 321 extends towards the second end 120 of the backing 100 on the first surface.

[0073] For any of the above winding methods, the free end 321 of the traction section 320 can be pulled under the action of an external force to separate the suture section 310 from the backing 100.

[0074] In some embodiments, an opening slot 103 is provided on the second end 120. For example, Figure 7As shown, an opening slot 103 may be provided on the second end 120. The slotting direction of the opening slot 103 extends from the opening 101 towards the edge of the second end 120 away from the first end 110.

[0075] Specifically, the free end 321 of the traction section 320 is exposed from the first surface and extends towards the edge of the second end 120. Further, an operator can drag the free end 321 of the traction section 320 so that the traction section 320 is snapped into the opening slot 103. The free end 321 of the traction section 320 snapped into the opening slot 103 is exposed from the second surface of the backing 100.

[0076] The provision of the opening slot 103 enables the free end 321 of the traction section 320 to be positioned without precisely passing through the opening 101. Instead, it only needs to slide into the opening slot 103 along the slotting gap of the opening slot 103 to complete the position limitation of the traction section 320. In practical applications, the assembly process of the traction section 320 and the opening slot 103 takes less time and is convenient to operate, which can save surgical time.

[0077] In some embodiments, a knife guiding slot 201 is provided on the repair patch 200. The knife guiding slot 201 extends along the length direction of the repair patch 200. The knife guiding slot 201 is generally strip-shaped and is approximately rectangular in the orthographic projection on a plane parallel to the horizontal plane, but is not limited thereto. In other examples, the above orthographic projection may 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.

[0078] The knife guiding slot 201 is used in cooperation with the cutting assembly of the stapler to limit the cutting position of the cutting assembly when cutting the tissue to be treated.

[0079] Specifically, after the repair patch 200 contacts the anastomotic stoma, the cutting assembly inside the stapler can cut the repair patch 200 into two parts along the extending direction of the knife guiding slot 201. The provision of the knife guiding slot 201 can ensure that the cutting assembly completely cuts off the repair patch 200, and at the same time can ensure that the repair patch 200 is completely anastomosed with the anastomotic stoma without using an additional cutting tool, thereby realizing the operation convenience in practical applications.

[0080] The openings and / or slots provided on the backing 100 of the anastomotic reinforcement patch effectively form a suture retaining structure, which is used to limit the position of the traction segment 320 of the suture 300 on the backing 100 and influence the direction of the traction segment 320, thereby minimizing the risk of suture 300 from being accidentally entangled. The suture retaining structure can include openings 101 and / or slots; further, the slots can include side slots 102 and / or longitudinal slots extending along the length of the backing 100. The side slots 102 extend parallel to or obliquely intersect the width of the backing 100.

[0081] The pulling section 320 of the suture 300 can pass through the suture limiting structure so that a portion of the pulling section 320 is located on the first side of the backing 100 and another portion of the pulling section 320 is located on the second side of the backing 100 .

[0082] Specifically, the pulling section 320 of the suture 300 can pass from the first side of the backing 100 through the opening 101 and / or the slot to the second side of the backing 102, thereby achieving the guiding function of the suture retaining structure. The pulling section 320 of the suture 300 can also pass from the second side of the backing 100 through the opening 101 and / or the slot to the first side of the backing 100, thereby achieving the guiding function of the suture retaining structure.

[0083] The biomaterial used in the patch 200 used in the anastomotic reinforcement patch product of this application is selected from a degradable polymer material or a degradable animal-derived biomaterial. Preferably, the degradable animal-derived biomaterial includes immunogen-removed dermal matrix, pericardium, peritoneum, bladder submucosa, or small intestinal submucosa, or a combination of these materials, such as a combination obtained by lamination, weaving, or inlaying. Preferably, it includes a decellularized small intestinal submucosa matrix material. The degradable polymer material can be selected from PGA, PLA, or PLGA, or a combination of these materials, such as a combination obtained by lamination, weaving, or inlaying.

[0084] The specific structure, working principle and beneficial effects of the anastomotic reinforcement patch provided by the embodiment of the present disclosure can refer to the anastomotic reinforcement patch described in any of the above embodiments, and will not be described in detail here.

[0085] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. References to the common and similar parts between the various embodiments will be sufficient. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, their descriptions are relatively simple; for relevant details, refer to the descriptions of the methods.

[0086] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit it; 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, characterized in that, Comprising: A backing, the backing having a first end and a second end opposite in direction in the length direction, the backing having a first surface and a second surface facing away from each other in the thickness direction; A patch, disposed on the first surface, the patch being detachably connected to the backing; And A suture, the suture including a suture segment and a traction segment, at least a part of the suture segment being sutured to the patch and the backing to detachably connect the patch to the backing, the traction segment being pulled under an external force to detach at least a part of the suture segment from the patch and the backing, so that the patch is separated from the backing, Wherein, a limiting structure of the suture is provided at the second end of the backing, the limiting structure including an opening and / or a slot; the traction segment can pass through the opening and / or the slot from the first surface of the backing and extend to the second surface of the backing, and the free end of the traction segment extends in the direction of the second end on the second surface; The suture includes at least two, and the free ends of the traction segments of at least two sutures are connected to each other.

2. The anastomotic stoma reinforcement patch according to claim 1, wherein The patch and the backing have a first state in which at least a part is connected, and a second state in which the patch and the backing are separated from each other, and the free end of the traction segment is pulled to convert the patch and the backing from the first state to the second state.

3. The anastomotic stoma reinforcement patch according to claim 1, wherein The traction segment can extend in the length direction of the backing and pass through the opening and / or the slot.

4. The anastomotic stoma reinforcement and repair patch according to claim 3, characterized in that, The slot includes: A side slot, disposed at the second end of the backing, the length extension direction of the side slot being parallel or obliquely intersecting with the width direction of the backing; and / or A longitudinal slot, disposed at the second end of the backing, the length extension direction of the longitudinal slot being the same as the length direction of the backing.

5. The anastomotic reinforcement patch according to claim 1, characterized in that, The limiting structure includes: An opening slot, the opening slot including an opening and a slot extending from the opening to the edge in the direction away from the first end at the second end.

6. The anastomotic stoma reinforcement and repair patch according to claim 1, characterized in that, Further comprising: An end cap, the end cap being disposed at the first end of the backing for accommodating the end of a stapler.

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