Liver wound hemostasis net bag for operation

Abstract

The utility model discloses a liver wound hemostasis net bag for an operation, which comprises a net bag body, the net bag body is composed of net bag line bodies and hemostasis sponge pieces, the net bag line bodies are interwoven to form a plurality of net holes, the hemostasis sponge pieces are arranged at cross points of at least part of two adjacent net bag line bodies, and the hemostasis sponge pieces are of a spongy porous structure; the tightening line comprises a flexible sleeve and a line body, the flexible sleeve is arranged at a part of a net bag opening of the net bag body in a bending deformation mode, the line body extends out of the flexible sleeve to the two ends of the flexible sleeve, and the line body is configured to tighten the net bag opening and enable the flexible sleeve to be synchronously bent and deformed when the two ends of the line body are connected. The hemostasis net bag has the advantages of being easy to operate, safe, effective, good in hemostasis effect and the like, and damage and function influence of residual liver tissue in an operation can be reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a hemostatic net bag for liver wounds used in surgery. Background Art

[0002] At present, surgery is still an important treatment for patients with liver tumors to achieve long-term survival. However, due to the numerous vascular systems, rich blood supply, and complex anatomical structure of the liver, liver surgery is difficult and has a high risk of intraoperative bleeding. If intraoperative bleeding is not handled properly or controlled in time, it will cause hemodynamic instability in the body in a short period of time, increase the amount of blood transfusion during surgery, and even passively change the surgical method. This will not only increase the risk of complications such as postoperative massive bleeding and infection, but in severe cases may endanger the patient's life.

[0003] Therefore, when performing right posterior lobectomy and left lateral lobectomy, it is necessary to protect the remaining normal liver tissue and function to the maximum extent, simplify the surgical operation, shorten the operation time, reduce the need for hemostasis by suturing during the operation, and at the same time allow the liver to regenerate its normal structure and achieve the effect of shaping and functional recovery. So far, there is no safe and effective surgical device that can reduce the impact of liver damage and function during the operation and achieve wound shaping and liver hemostasis. Utility Model Content

[0004] The utility model aims to provide a hemostatic net bag for liver wounds used in surgery, so as to solve the problems of poor liver wound shaping and poor hemostatic effect during surgery.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A hemostatic net bag for liver wounds used in surgery, comprising:

[0007] The net bag body is composed of a net bag line body and a hemostatic sponge sheet, wherein the net bag line bodies are interwoven to form a plurality of meshes, and the hemostatic sponge sheet is arranged at the intersection of at least two adjacent net bag line bodies, and the hemostatic sponge sheet is a sponge-like porous structure; and

[0008] The tightening line includes a flexible sleeve and a line body. The flexible sleeve is bendably and deformably arranged at a part of the net bag opening of the net bag body. The line body extends from the inside of the flexible sleeve to both ends. The line body is configured to tighten the net bag opening and cause the flexible sleeve to bend and deform synchronously when both ends are connected.

[0009] Furthermore, the single pore diameter of the sponge-like porous structure is 5 μm-7 μm.

[0010] Furthermore, the thickness of the hemostatic sponge sheet is 300 μm-500 μm.

[0011] Further, the mesh holes include a plurality of limiting holes for limiting the flexible sleeve, and the plurality of limiting holes are arranged along the mesh opening of the mesh bag;

[0012] The wire body extending out of the wire body of the mesh bag also passes through the limiting holes.

[0013] Further, the first end of the wire body extending out of the flexible sleeve includes a plurality of surrounding structures;

[0014] The second end of the wire body extending out of the flexible sleeve can be wound around any of the surrounding structures;

[0015] Wherein, when the wire body tightens the mesh opening, a part of the surrounding structure is always located outside the flexible sleeve.

[0016] Further, the surrounding structure is in a water droplet shape, and the first end of the water droplet shape gradually narrows towards the direction of the flexible sleeve, and the second end of the water droplet shape extends outwards away from the axis of the flexible sleeve;

[0017] The first ends of the surrounding structures are concentrated at one place.

[0018] Advantages of the present utility model:

[0019] The mesh bag body is used to cover the residual liver. The hemostatic sponge sheet can stop bleeding at the obvious active bleeding sites of the residual liver tissue wound surface, contribute to the wound surface recovery, and prevent tissue adhesion during the recovery process. The flexible sleeve of the tightening wire is limited at the mesh opening of the mesh bag, and excessive displacement of the hemostatic mesh bag relative to the liver will not occur during tightening. In addition, the flexible sleeve is not completely looped around the mesh opening. When the two ends of the wire body are connected, the mesh opening can be tightened more tightly. This hemostatic mesh bag has the advantages of simple operation, safety and effectiveness, good hemostatic effect, etc., and can minimize the damage and functional impact on the residual liver tissue during the operation. Description of the drawings

[0020] Figure 1 is a schematic structural diagram of the hemostatic mesh bag for liver wound surface in this embodiment;

[0021] Figure 2 is a schematic structural diagram of the tightening wire;

[0022] Figure 3 is a partial enlarged view of the mesh opening of the mesh bag body;

[0023] Figure 4 is a schematic structural diagram when the surrounding structure extends out of the flexible sleeve. Detailed implementation manners

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] This embodiment provides a hemostatic net bag for liver wounds during surgery. Figure 1 Schematic diagram of the structure of the hemostatic net bag for liver wounds provided in this embodiment. Figure 1 As shown, the hemostatic net bag for liver wounds used in surgery includes a net bag body 1 and a tightening line 2.

[0029] The net bag body 1 has a bag cavity and forms a net bag opening at one end. The net bag body 1 is composed of a net bag line body 11 and a hemostatic sponge sheet 12, wherein the net bag line bodies 11 are interwoven to form a plurality of mesh holes 110, and at least some of the intersections of two adjacent net bag line bodies 11 are provided with hemostatic sponge sheets 12, and the hemostatic sponge sheets 12 are sponge-like porous structures.

[0030] In this embodiment, the net bag line body 11 includes a warp part and a weft part, each warp part is arranged at intervals along the circumferential direction of the net bag, each weft part is arranged at intervals along the axial direction of the net bag, and the warp part and the weft part are interwoven.

[0031] Preferably, the warp part includes 20 warps, and the weft part includes 15 wefts, one of the warps is defined as the first one, and they are numbered in sequence in a clockwise direction, and the intersections of the odd-numbered warps and each weft can be provided with a hemostatic sponge sheet 12. Of course, a hemostatic sponge sheet 12 can also be provided at all intersections of each warp and each weft.

[0032] In this embodiment, the hemostatic sponge sheet 12 is a quadrilateral, and the area of ​​the quadrilateral is much smaller than the area of ​​a single mesh 110. Of course, the shape of the hemostatic sponge sheet 12 can also be circular, elliptical, triangular, etc.

[0033] The hemostatic sponge sheet 12 is a sponge-like porous structure and can be used to absorb bleeding from liver wounds during surgery.

[0034] Figure 2 It is a structural schematic diagram of the tightening line 2, which includes a flexible sleeve 21 and a line body 22. The flexible sleeve 21 is bendably and deformably arranged at a part of the net bag opening of the net bag body 1, and the line body 22 extends from the inside of the flexible sleeve 21 to both ends. The line body 22 is configured to tighten the net bag opening and cause the flexible sleeve 21 to bend and deform synchronously when both ends are connected.

[0035] The liver wound hemostatic net bag for surgery provided in this embodiment, the net bag body 1 is used to cover the residual liver, and the hemostatic sponge sheet 12 stops bleeding at the obvious active bleeding site of the residual liver tissue wound, which is helpful for wound recovery and prevents tissue adhesion during the recovery process. The flexible sleeve 21 of the tightening line 2 is limited at the net bag mouth, and will not cause excessive displacement of the hemostatic net bag relative to the liver when tightened. In addition, the flexible sleeve 21 is not completely arranged around the net bag mouth. When the two ends of the line body 22 are connected, the net bag mouth can be contracted tighter. The hemostatic net bag has the advantages of simple operation, safety and effectiveness, good hemostatic effect, etc., and can minimize the damage and functional impact of the residual liver tissue during surgery.

[0036] Furthermore, the hemostatic sponge sheet 12 is made of TEMPO oxidized cellulose nanofiber material, which has good mechanical properties and can be completely gelled and diluted before being absorbed by the human body, thereby reducing postoperative operations.

[0037] Furthermore, the single pore diameter of the sponge-like porous structure is 5 μm-7 μm, which can effectively reduce the occurrence of postoperative adhesion.

[0038] Furthermore, the thickness of the hemostatic sponge sheet 12 is 300μm - 500μm. Within this range, the occurrence of postoperative adhesions can be further effectively reduced.

[0039] Furthermore, Figure 3 is an enlarged view of a part of the mouth of the mesh bag body 1. Combining Figures 1-3 , the mesh holes 110 include a plurality of limiting holes 1101 for limiting the flexible sleeve 21, and the plurality of limiting holes 1101 are arranged along the mouth of the mesh bag.

[0040] In addition, the wire body 22 extending out of the mesh bag wire body 11 also passes through the limiting holes 1101.

[0041] It can be understood that the limiting holes 1101 are also formed by the interweaving of the mesh bag wire body 11. The aperture of the limiting holes 1101 is slightly larger than the outer diameter of the flexible sleeve 21, so that the flexible sleeve 21 passes through the limiting holes and is wrapped by the mesh bag wire body 11.

[0042] The wire body 22 extending out of the mesh bag wire body 11 also passes through the limiting holes 1101. In other words, the limiting holes 1101 arranged along the mouth of the mesh bag limit both the flexible sleeve 21 and the wire body 22 at the same time.

[0043] Continue to participate Figure 2 , the first end of the wire body 22 extending out of the flexible sleeve 21 includes a plurality of surrounding structures 221. The second end of the wire body 22 extending out of the flexible sleeve 21 can be wound around any of the surrounding structures 221, thereby completing the knotting of the wire body 22.

[0044] In addition, when the wire body 22 tightens the mouth of the mesh bag, a part of the surrounding structure 221 is always located outside the flexible sleeve 21. It can be understood that the surrounding structure 221 can be bent and deformed, but it can never be completely contracted into the flexible sleeve 21, that is, there is always a certain gap left, which is conducive to the wire body 22 passing through it to complete the knotting.

[0045] Figure 4 is a schematic structural view when the surrounding structure 221 extends out of the flexible sleeve 21. The surrounding structure 221 is in a water droplet shape, and the first end of the water droplet shape gradually narrows towards the direction of the flexible sleeve 21, and the second end of the water droplet shape extends outward away from the axis of the flexible sleeve 21; the first ends of the surrounding structures 221 are concentrated in one place. It can be understood that the narrow end of the surrounding structure 221 faces the flexible sleeve 21, and the wide end of the surrounding structure 221 faces away from the flexible sleeve 21 and extends outward, which can prevent it from extending into the flexible sleeve 21 during the process of stretching the wire body 22, and the concentration of the narrow ends of the surrounding structures 221 in one place is beneficial to improving the tensile strength of the wire body 22.

[0046] Furthermore, the first end of the surrounding structure 221 can extend deep into the flexible sleeve 21. Therefore, when the wire body 22 is pulled, the shape and size of the surrounding structure 221 can be tightened, so that the hemostatic net pocket will not overly interfere with the remaining internal organs.

[0047] The working principle of the surgical liver wound hemostatic net pocket provided in this embodiment is as follows: during the operation, the mouth of the net pocket of the hemostatic net pocket is aligned with the liver, and the liver is gradually sleeved in. When the liver touches or is about to touch the bottom of the hemostatic net pocket, it is no longer sleeved in. The second end of the wire body 22 is pulled to tighten the mouth of the net pocket, and then the second end of the wire body 22 is wound around several surrounding structures 221 and tied to complete the operation.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A hemostatic net bag for liver wounds used in surgery, characterized in that: include: A net bag body (1) is composed of a net bag line body (11) and a hemostatic sponge sheet (12), wherein the net bag line bodies (11) are interwoven to form a plurality of mesh holes (110), and the hemostatic sponge sheet (12) is provided at the intersection of at least some adjacent two net bag line bodies (11), and the hemostatic sponge sheet (12) is a sponge-like porous structure; and The tightening wire (2) comprises a flexible sleeve (21) and a wire body (22), wherein the flexible sleeve (21) is disposed at a portion of a net bag opening of the net bag body (1) in a bendable and deformable manner, and the wire body (22) extends from the interior of the flexible sleeve (21) to both ends, and the wire body (22) is configured to tighten the net bag opening and cause the flexible sleeve (21) to bend and deform synchronously when both ends are connected.

2. The hemostatic net bag for liver wounds used in surgery according to claim 1, characterized in that: The single pore diameter of the sponge-like porous structure is 5 μm-7 μm.

3. The hemostatic net bag for liver wounds used in surgery according to claim 2, characterized in that: The thickness of the hemostatic sponge sheet (12) is 300 μm-500 μm.

4. The hemostatic net bag for liver wounds used in surgery according to claim 1, characterized in that: The mesh (110) comprises a plurality of limiting holes (1101) for limiting the position of the flexible sleeve (21), and the plurality of limiting holes (1101) are arranged along the opening of the net bag; The line body (22) extending from the net bag line body (11) is also passed through the limiting hole (1101).

5. The hemostatic net bag for liver wounds used in surgery according to claim 4, characterized in that: The first end of the wire body (22) extending out of the flexible sleeve (21) comprises a plurality of surrounding structures (221); The second end of the wire body (22) extending out of the flexible sleeve (21) can be wound around any of the surrounding structures (221); Wherein, when the wire body (22) tightens the net bag opening, a portion of the surrounding structure (221) is always located outside the flexible sleeve (21).

6. The hemostatic net bag for liver wounds used in surgery according to claim 5, characterized in that: The enclosing structure (221) is in a teardrop shape, and the first end of the teardrop shape gradually narrows in the direction toward the flexible sleeve (21), and the second end of the teardrop shape extends outward in a direction away from the axis of the flexible sleeve (21); The first ends of the enclosing structures (221) are concentrated at one point.

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