Anastomotic reinforcement and repair patch

Abstract

The present disclosure provides an anastomotic reinforcement patch, comprising: a backing, end caps, a patch, suture lines, and traction lines. The backing has a first surface and a second surface facing away from each other in the thickness direction, and the backing is configured as an arc-shaped structure. A first end and a second end with opposite directions are provided in the extending direction of the arc-shaped structure, and the backing is used for assembling an arc-shaped stapler; the patch has an arc-shaped structure, is disposed on the first surface, and is detachably connected to the backing; the end caps are disposed on the first surface of the backing and are used for restricting the connection between the anastomotic reinforcement patch and the arc-shaped stapler; the suture lines are disposed on the backing and are used for suturing the backing to the patch and the end caps, and the suture lines are arranged as a closed loop on the backing; the traction lines are sleeved on the suture lines near the second end, and when an external force acts on the traction lines, the traction lines are dragged to drive the separation of the suture lines from the backing.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular, to an anastomotic stoma reinforcement and repair patch. Background Art

[0002] The application of staplers has greatly promoted the development of modern surgery and minimally invasive surgery, and has milestone significance. A stapler can staple tissues with staples while cutting, and is widely used for cutting, suturing or anastomosing organ tissues such as the intestine, stomach, lung, and pancreas. However, simply using rigid staples cannot completely avoid leakage and bleeding of the anastomotic stoma 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 stoma tearing. To solve the above problems, an anastomotic stoma reinforcement and repair patch can be used in combination with a stapler, so that while the stapler cuts and closes the wound surface, the reinforcement and repair 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. However, in clinical practice, due to the narrow surgical space in certain specific parts, such as the pelvic cavity, ordinary staplers cannot reach the affected area to perform anastomotic repair on patients. Therefore, an arc stapler is also required in clinical practice. Summary of the Invention

[0003] The purpose of the present disclosure is to provide an anastomotic stoma reinforcement and repair patch for the technical problems in the related art. The specific solutions are as follows:

[0004] An embodiment of the present disclosure provides an anastomotic stoma reinforcement and repair patch, including: a backing having a first surface and a second surface facing away from each other in the thickness direction, the backing being configured as an arc structure, and having a first end and a second end with opposite directions in the extending direction of the arc structure, the backing being used for assembling the anastomosis mechanism of an arc stapler; a repair patch disposed on the first surface and detachably connected to the backing, having an arc structure matching the backing; an end cap disposed on the first surface of the backing, the arc end of the end cap being connected to the first end, the end cap being used for restricting the connection between the anastomotic stoma reinforcement and repair patch and the arc stapler; a suture disposed on the backing for connecting the backing to the repair patch and the end cap, the suture being disposed on the backing as a closed loop; and a traction wire sleeved on the suture near the second end, and under the action of an external force, dragging the traction wire to drive the suture to separate from the backing.

[0005] In some embodiments, the radius length of the inner arc of the patch is r, and the value range of r is 15 mm - 40 mm; the width of the patch is w, and the value range of w is 5 mm - 20 mm; the central angle of the arc-shaped structure is θ, and the value range of θ is 80° - 180°.

[0006] In some embodiments, the suture includes: a first suture 311 that passes through the patch and the backing multiple times, exposing a double-stranded wire on the first side of the backing and the patch, the double-stranded wire sleeve forming a noose structure, and exposing a single-stranded wire on the second side of the backing; and a second suture that passes through the noose structure multiple times, and the second suture separates from the first suture 311 under the action of an external force.

[0007] In some embodiments, the traction wire is connected to the second suture, and the second suture is separated from the first suture 311 by dragging the traction wire under the action of an external force.

[0008] In some embodiments, at least a part of the structure where the traction wire is connected to the suture is configured as a traction loop, and the traction loop sleeves the second suture.

[0009] In some embodiments, 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 relatively independent. The traction wire is dragged under the action of an external force to convert the patch and the backing from the first state to the second state.

[0010] In some embodiments, the patch extends along the bending direction of the backing, and at least a part of the patch is received inside the end cap.

[0011] In some embodiments, the backing includes: a first arc-shaped structure that bends counterclockwise on the first side of the backing; and a second arc-shaped structure that bends clockwise on the first side of the backing, wherein the first arc-shaped structure and the second arc-shaped structure are configured as a symmetric structure on the first side of the backing.

[0012] In some embodiments, the suture is a closed loop and extends along the edges of the first arc-shaped structure and the second arc-shaped structure, and two of the sutures cross on the axis of symmetry of the first arc-shaped structure and the second arc-shaped structure.

[0013] In some embodiments, the traction wire sleeves two of the sutures, and the traction wire is dragged under the action of an external force to separate the two sutures from the backing simultaneously.

[0014] The above solution of the embodiments of the present disclosure has at least the following beneficial effects compared with the related art:

[0015] The present disclosure provides an anastomotic stoma reinforcement and repair patch, including a backing with an arc structure, a repair patch matching the shape of the arc-structured backing, suture lines, and traction lines. The suture lines are arranged in a closed loop on the backing, and the traction lines are sleeved on the suture lines. Under the action of an external force, dragging the traction lines can drive the separation of the suture lines from the backing. When an arc-shaped stapler is applied in clinical operations, after the anastomotic stoma reinforcement and repair patch is sleeved on the stapler, only by dragging the traction lines, the annular closed suture lines can be separated from the backing, which is convenient for doctors to control the anastomotic stoma reinforcement and repair patch and improves the accuracy and timeliness of the operation.

[0016] 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

[0017] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure and 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, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts. In the drawings:

[0018] Figure 1 is a schematic structural view of an anastomotic stoma reinforcement and repair patch shown according to an exemplary embodiment.

[0019] Figure 2 is a schematic structural view of a backing shown according to an exemplary embodiment.

[0020] Figure 3 is a schematic structural view of a repair patch shown according to an exemplary embodiment.

[0021] Figure 4 is a schematic structural view of suture lines shown according to an exemplary embodiment.

[0022] Figure 5 is a schematic structural view of another unfolded anastomotic stoma reinforcement and repair patch shown according to an exemplary embodiment.

[0023] Figure 6 is a schematic structural view of another unfolded anastomotic stoma reinforcement and repair patch shown according to an exemplary embodiment.

[0024] Figure 7 is according to Figure 5 shown is a schematic structural view of another folded anastomotic stoma reinforcement and repair patch.

[0025] Reference numerals:

[0026] Backing 100, first end 101, second end 102, end cap 103, first arcuate structure 110, second arcuate structure 120;

[0027] Patch 200, cutting guide groove 201, first patch 210, second patch 220;

[0028] Suture 310, first suture 311, second suture 312, traction line 320, traction ring 321. Detailed implementation manners

[0029] 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 the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present disclosure.

[0030] 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.

[0031] 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.

[0032] It should be understood that the term " / and" 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.

[0033] 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.

[0034] 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 can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can 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.

[0035] Depending on the context, the words "if" or "when" as used herein can be interpreted as "when...", "while...", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrases "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detecting (stated condition or event)", or "in response to detecting (stated condition or event)".

[0036] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the commodity or device comprising said element.

[0037] In the related art, an anastomotic reinforcement patch includes: a backing, a patch, and a suture. The suture connects the backing and the patch together, making the backing and the patch an integral whole, and the two sutures have long traction segments. During use, the patch is installed on the stapler, and then the front part of the stapler is inserted into the body cavity to reach the lesion. The jaws of the stapler are closed to clamp the tissue to be anastomosed. Then, the traction segment is pulled, so that the patch is completely separated from the backing. Since the suture and the backing have a fixed connection point at the front end, the backing is pulled backward by the suture at this time. Next, the stapler is fired to cut the tissue by the stapler and form an anastomotic opening; while forming the anastomotic opening, the stapler fixes the patch to the anastomotic opening and cuts it into two parts. Then, the jaws of the stapler are loosened, and then the stapler is withdrawn from the patient's body, and the traction segment is continuously pulled to remove the backing. Thus, the operation is completed, and the purpose of repairing the anastomotic opening by the patch is achieved.

[0038] Common laparoscopic staplers are mainly used for surgeries in the abdominal cavity. The stapler enters the abdominal cavity through a trocar to reach the lesion. The front end of this type of stapler has a linear structure. However, due to the narrow surgical space in certain specific parts, such as in the rectal tumor surgery in the pelvis, although a linear stapler can enter the pelvis, because its cutting line is linear, it cannot reach deep into the pelvic floor to cut the tumor. For such surgeries, especially for low rectal tumor surgeries, an arc-shaped stapler is used to remove the lesion, and when using a stapler, there is a risk of bleeding at the staple holes of the anastomotic opening and loose suturing of the anastomotic opening.

[0039] In view of this, the optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0040] An anastomotic reinforcement patch 200 provided by an embodiment of the present disclosure includes: a backing 100, an end cap 103, a patch 200, a suture 310, and a traction line 320.

[0041] The backing 100 has a first surface and a second surface that face away from each other in the thickness direction. The backing 100 is configured as an arc-shaped structure. As Figure 1 shown, a first end 101 and a second end 102 with opposite directions are provided in the extending direction of the arc-shaped structure. The backing 100 is used to assemble the anastomotic mechanism of the arc-shaped stapler.

[0042] The patch 200 is disposed on the first surface and is detachably connected to the backing 100, and has an arc-shaped structure matching the backing 100.

[0043] When 200 sets of anastomotic reinforcement patches 200 are sleeved on an arc stapler for clinical practice, the arc stapler with the patch 200 is inserted into the human body cavity. The arc-shaped patch 200 applied to the arc stapler can repair the anastomotic opening in a narrow space to protect fragile tissues from being torn, thereby strengthening the anastomotic opening and reducing the risks of anastomotic bleeding, exudation, etc.

[0044] The end cap 103 is arranged on the first surface of the backing 100. The arc end of the end cap 103 is fixedly connected to the first end 101 of the backing 100. The end cap 103 can be folded so that the end cap 103 coincides with the backing 100. The end cap 103 is used to limit the connection between the anastomotic reinforcement patch 200 and the arc stapler.

[0045] Specifically, at least part of the end cap 103 is fixedly connected to the end of the backing 100. The end cap 103 sleeves the arc stapler and wraps the end of the arc stapler to prevent the end of the arc stapler from directly contacting human tissues.

[0046] The suture 310 is arranged on the backing 100 and is used to connect the backing 100 to the patch 200 and the end cap 103. As Figure 2 shown, the suture 310 is arranged as a closed loop on the backing 100.

[0047] In some embodiments, at least part of the suture 310 is connected to the end cap 103 to prevent a gap between the end cap 103 and the patch 200 from exposing the stapler. Among them, the suture 310 detachably connects the end cap 103 and the patch 200 to the backing 100.

[0048] Specifically, the end cap 103 and the backing 100 have an unfolded state and a folded state. As Figure 1 、 Figure 2 shown, when the suture 310 does not stitch the end cap 103 to the backing 100, the end cap 103 and the backing 100 are in the unfolded state. At this time, the end of the end cap 103 is connected to the first section of the backing 100, and the end cap 103 and the backing 100 are complementary; when the suture 310 stitches the end cap 103 to the backing 100, part of the end cap 103 coincides with the first end 101 of the backing 100. At this time, the end cap 103 and the backing 100 are in the folded state.

[0049] The end cap 103 has at least a unilateral opening facing the second end 102. The end cap 103 is used to accommodate the end of the arc stapler, so that the end of the arc stapler abuts against the end cap 103 and is wrapped within the end cap 103, preventing the end of the arc stapler from directly contacting human tissues; at the same time, it avoids the patch 200 from curling when the arc stapler operates in a narrow space due to touching the inner cavity wall of the body.

[0050] It should be noted that using a patch for anastomotic reinforcement with an end cap 103 helps to accurately fix the position of the patch 200 and prevent the patch 200 from curling. For staplers used in open surgeries with more sufficient operating space, patches for anastomotic reinforcement without an end cap 103 can also be used. This is because for open surgeries, with a large operating space, patches for anastomotic reinforcement with or without an end cap 103 can be used.

[0051] In some embodiments, the patch 200 extends along the bending direction of the backing 100, and at least a part of the patch 200 is received inside the end cap 103.

[0052] Specifically, the patch 200 is disposed on the first surface of the backing 100. The suture 310 is used to sew the patch 200 to the backing 100, making the patch 200 and the backing 100 detachably connected. The first end 101 of the backing 100 is provided with an end cap 103 for receiving at least a part of the patch 200.

[0053] In some embodiments, one end of the suture 310 is non - detachably sewn to the backing, and is still connected to the backing 100 after the suture 310 is detached, so as to pull the backing 100 out of the body cavity to the outside of the body. If the suture 310 is completely separated from the backing 100, other medical devices, such as medical forceps or clips, can be used to take the backing 100 out of the body.

[0054] In some embodiments, at least a part of the suture 310 is connected to the end cap 103, and at least a part of the patch 200 extends into the end cap 103, which is used to guide the arc stapler into the end cap 103. Among them, the suture 310 detachably sets the end cap 103 on the backing 100. When the suture 310 is detached, the suture connection between the end cap 103 and the backing 100 can be loosened, thereby releasing the socketed end of the arc stapler.

[0055] In some embodiments, the anastomotic reinforcement patch 200 further includes a traction line 320. The traction line 320 is sleeved on the suture line 310 near the second end 102. Under the action of an external force, dragging the traction line 320 can drive the suture line 310 to separate from the backing 100.

[0056] Specifically, under the action of an external force, pulling the traction line 320 can cause the suture line 310 to disengage from the backing 100. Further, it can cause the end cap 103 to be converted from a folded state to an unfolded state, and the patch 200 to separate from the backing 100. At this time, the patch 200 and the end cap 103 are in an unfolded state, the patch 200 and the backing 100 are relatively independent, and the anastomotic reinforcement patch 200 is repaired to the affected area of the patient, and the backing 100 and the arc stapler can be withdrawn from the patient's body.

[0057] In some embodiments, as Figure 3 shown, both sides of the curved patch 200 in the bending extension direction have the same center of circle and central angle. In practical applications, in order to make the patch 200 have a higher matching degree with the arc stapler, the parameters of the patch 200 are now defined.

[0058] Specifically, the centers of the two arcs on the patch 200 are named (a, b) in space. Based on the center of the circle, the radius length of the inner arc of the patch 200 is r, r = 15 mm - 40 mm; the width of the patch 200 is w, w = 5 mm - 20 mm; the central angle of the arc structure is θ, θ = 80° - 180°; for example, the central angle θ can be 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160° or 170°. Under this definition, the patch 200 can meet the fitting accuracy standards with the arc stapler in multiple usage scenarios, facilitating the doctor's control of the anastomotic reinforcement patch 200 in clinical practice and improving the accuracy and timeliness of the operation.

[0059] In some embodiments, the suture line 310 includes: a first suture line 311 and a second suture line 312.

[0060] The first suture line 311 passes through the patch 200 and the backing 100 multiple times. As Figure 4 shown, the first suture line 311 exposes multiple double-strand wire sleeves on the first side of the backing 100 and the patch 200. A noose structure is formed between the double-strand wire sleeves, and multiple single-strand wires are exposed on the second side of the backing 100. The second suture line 312 passes through the noose structure multiple times. When the second suture line 312 is pulled, the noose structure can be untied. After the locking sleeve structure is untied, the first suture line 311 and the second suture line 312 are separated.

[0061] Specifically, when the patch 200 and the backing 100 are in the first state, when the free end of the traction section of the second suture 312 is pulled by an external force, the second suture 312 disengages from the noose structure. At the same time, the noose structure of the first suture 311 is disassembled. The connection state between the patch 200 and the backing 100 is converted from the first state to the second state, that is, the backing 100 and the patch 200 are separated.

[0062] In some embodiments, the traction line 320 is connected to the second suture 312. Dragging the traction line 320 under an external force can separate the second suture 312 from the first suture 311. As Figure 1 shown, at least a part of the traction line 320 connected to the suture 310 is configured as a traction loop 321, and the traction loop 321 sleeves the second suture 312.

[0063] In some embodiments, the patch 200 and the backing 100 have a first state in which at least a part is connected, and a second state in which the patch 200 and the backing 100 are relatively independent. An external force drags the traction line 320 to convert the connection state between the patch 200 and the backing 100 from the first state to the second state.

[0064] Specifically, when the patch 200 and the backing 100 are in the first state, at least a part of the patch 200 and the backing 100 are connected. At this time, the anastomotic orifice reinforcement patch 200 is sleeved on the arc stapler or at least partially wraps the arc stapler.

[0065] When the patch 200 and the backing 100 are in the second state, the patch 200 and the backing 100 are relatively independent. The anastomotic orifice reinforcement patch 200 is repaired to the patient's affected area, and the backing 100 and the arc stapler can be withdrawn from the patient's body.

[0066] When the patch 200 and the backing 100 are in the first state, pulling the traction line 320 under an external force can convert the connection state between the patch 200 and the backing 100 from the first state to the second state.

[0067] In some embodiments, the backing 100 includes: a first arc structure 110 and a second arc structure 120.

[0068] As Figure 5As shown, the first arc-shaped structure 110 bends counterclockwise on the first surface of the backing 100; the second arc-shaped structure 120 bends clockwise on the first surface of the backing 100, wherein the first arc-shaped structure 110 and the second arc-shaped structure 120 are configured as a symmetric structure on the first surface of the backing 100.

[0069] A first repair patch 210 and a second repair patch 200 are respectively arranged on the first arc-shaped structure 110 and the second arc-shaped structure 120. The first repair patch 210 bends counterclockwise on the first surface of the backing 100; the second repair patch 200 bends clockwise on the first surface of the backing 100. The first repair patch 210 and the second repair patch 200 are configured as a symmetric structure on the first surface of the backing 100.

[0070] In clinical practice, the first arc-shaped structure 110 and the second arc-shaped structure 120 are respectively sleeved on two anastomosis forceps of an arc-shaped stapler. When the two anastomosis forceps are meshed, the backing 100 with the first arc-shaped structure 110 and the second arc-shaped structure 120 is folded in half along the symmetry axis, realizing the arc-shaped anastomotic orifice repair operation in a narrow space.

[0071] In some embodiments, the suture 310 is a closed loop and extends along the edges of the first arc-shaped structure 110 and the second arc-shaped structure 120. Two of the sutures 310 cross on the symmetry axis of the first arc-shaped structure 110 and the second arc-shaped structure 120. The traction wire 320 is sleeved on the two sutures 310 on the symmetry axis. Under an external force, the traction wire 320 is dragged to separate the two sutures 310 from the backing 100 simultaneously.

[0072] In some embodiments, two groups of the sutures 310 can be provided, as Figure 6 、 Figure 7 shown. The two groups of sutures 310 respectively extend along the edges of the first arc-shaped structure 110 and the second arc-shaped structure 120 to form two closed loop structures. The traction wire 320 is sleeved on one ends of the two sutures 310 on both sides of the symmetry axis away from the end cap 103. Under an external force, the traction wire 320 is dragged to separate the two sutures 310 from the backing 100 simultaneously.

[0073] Since the suture 310 is a closed loop, therefore, when the traction wire 320 is dragged under an external force, the two groups of closed-loop sutures 310 have the same force tendency, and pulling the traction section can convert the backing 100 and the repair patch 200 from the first state to the second state.

[0074] It should be separately noted that when the traction line 320 is pulled, due to the arrangement of the traction ring 321, the pulling forces on the two suture lines 310 are basically the same. This is because when the traction line 320 is usually pulled, although the traction lines 320 on both sides are pulled simultaneously, they are individually stressed. Since the lengths of the traction lines 320 located on the inner and outer arcs are different, the disassembly speeds are also different, which easily causes uneven stress on both sides of the patch. By arranging the traction ring 321, the traction lines 320 on both sides can be stressed simultaneously. Although the disassembly speeds of the traction lines 320 on both sides of the patch 200 are different, the traction lines 320 are sleeved with the traction ring 321, so that the traction line 320 on the side with a faster disassembly speed can compensate for the traction line 320 on the side with a slower disassembly speed, thereby realizing that the traction lines 320 are pulled simultaneously and the stress is uniform. Therefore, when the traction line 320 is pulled to drive the suture line 310 to separate from the backing 100, 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.

[0075] In some embodiments, a knife guiding groove is provided on the patch 200. The knife guiding groove extends along the length direction of the patch 200. The knife guiding groove is generally strip-shaped, and the orthographic projection on a plane parallel to the horizontal plane is generally rectangular in shape, 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.

[0076] The knife guiding groove 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, etc.

[0077] Specifically, after the patch 200 contacts the anastomosis, the cutting assembly inside the stapler can cut the patch 200 into two parts along the extending direction of the knife guiding groove. The arrangement of the knife guiding groove can ensure that the cutting assembly completely cuts off the patch 200, and at the same time can ensure that the patch 200 is completely anastomosed with the anastomosis, without the need to use an additional cutting tool, thereby realizing the operation convenience in practical applications.

[0078] In the present application, the biomaterials used in the anastomosis reinforcement patch product for the patch 200 are selected from biodegradable polymer materials or biodegradable animal-derived biomaterials. Preferably, the biodegradable animal-derived biomaterials include dermal matrix, pericardium, peritoneum, urinary bladder submucosa or small intestine submucosa that have been subjected to immunogen removal treatment, or a combination of these materials, such as a combination obtained by methods such as laminating, weaving, or inlaying. Preferably, it includes acellular small intestine submucosa matrix material. The biodegradable polymer material can be selected from PGA, PLA or PLGA, or a combination of these materials, such as a combination obtained by methods such as laminating, weaving, or inlaying.

[0079] For the specific structure, working principle, and beneficial effects of the anastomosis reinforcement patch 200 provided in the embodiments of the present disclosure, reference can be made to the anastomosis reinforcement patch 200 described in any of the above embodiments, and details will not be repeated here.

[0080] Finally, it should be noted that the embodiments in this specification are described in a progressive manner, and the key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and reference can be made to the description in the method part for relevant parts.

[0081] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than 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 described in the foregoing embodiments, or perform equivalent replacements for 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, having a first surface and a second surface facing away from each other in the thickness direction, the backing being configured as an arc-shaped structure, with a first end and a second end in opposite directions provided in the extending direction of the arc-shaped structure, the backing being used for assembling the anastomosis mechanism of an arc-shaped stapler; A repair patch, provided on the first surface and detachably connected to the backing, having an arc-shaped structure matching the backing; An end cap, provided on the first surface of the backing, the arc end of the end cap being connected to the first end, the end cap being used for restricting the connection between the anastomotic orifice reinforcement repair patch and the arc-shaped stapler; A suture, the suture being provided on the backing for connecting the backing to the repair patch and the end cap, the suture being arranged as a closed ring on the backing; And A traction wire, the traction wire being sleeved on the suture near the second end, and under the action of an external force, dragging the traction wire to drive the separation of the suture from the backing; Wherein, the end cap and the backing have a deployed state and a folded state. When the suture does not sew the end cap to the backing, the end cap and the backing are in the deployed state. At this time, the arc end of the end cap is connected to the first end of the backing, and the end cap and the backing do not overlap; when the suture sews the end cap to the backing, the first end of the end cap and the backing partially overlap. At this time, the end cap and the backing are in the folded state.

2. The anastomotic orifice reinforcement repair patch according to claim 1, wherein The radius length of the inner arc of the repair patch is r, and the value range of r is 15 mm - 40 mm; The width of the repair patch is w, and the value range of w is 5 mm - 20 mm; The central angle of the arc-shaped structure is θ, and the value range of θ is 80° - 180°.

3. The anastomotic orifice reinforcement repair patch according to claim 1, wherein The suture comprises: A first suture, the first suture passing through the repair patch and the backing multiple times, with double-strand wire sleeves exposed on the first surface of the backing and the repair patch, the double-strand wire sleeves forming a noose structure, and a single-strand wire exposed on the second surface of the backing; and A second suture, the second suture passing through the noose structure multiple times, and the second suture separates from the first suture under the action of an external force.

4. The anastomotic orifice reinforcement repair patch according to claim 3, wherein The traction wire is connected to the second suture, and under the action of an external force, dragging the traction wire separates the second suture from the first suture.

5. The anastomotic orifice reinforcement repair patch according to claim 4, wherein At least a part of the structure where the traction wire is connected to the suture is configured as a traction ring, and the traction ring is sleeved on the second suture.

6. The anastomotic orifice reinforcement repair patch according to claim 1, wherein The repair patch and the backing have a first state in which at least a part is connected, and a second state in which the repair patch and the backing are relatively independent. Under the action of an external force, dragging the traction wire converts the repair patch and the backing from the first state to the second state.

7. The anastomotic reinforcement patch according to claim 1, wherein the patch extends along the bending direction of the backing, and at least part of the patch is received inside the end cap.

8. The anastomotic reinforcement and repair patch according to claim 1, wherein The backing includes: a first arcuate structure that bends counterclockwise on the first surface of the backing; and a second arcuate structure that bends clockwise on the first surface of the backing, wherein the first arcuate structure and the second arcuate structure are configured as a symmetric structure on the first surface of the backing.

9. The anastomotic reinforcement patch according to claim 8, wherein the suture is a closed loop and extends along the edges of the first arcuate structure and the second arcuate structure, and the axis of symmetry of the first arcuate structure and the second arcuate structure crosses the suture at the first end and the second end.

10. The anastomotic reinforcement patch according to claim 9, wherein the traction wire is sleeved on the suture, and the traction wire is dragged under an external force to separate the suture from the backing.

Images