Abdominal cavity suture needle assembly and suture method thereof

Abstract

The invention discloses an abdominal cavity suture needle assembly and a suture method thereof.The suture needle assembly comprises a suture needle (10), the suture needle (10) comprises a needle head (11) and a needle body (12) connected with the needle head (11), a penetrating hole (123) is formed in the end, away from the needle head (11), of the needle body (12), an expansion body (13) is further arranged on the needle body (12), and when the suture needle (10) punctures an abdominal cavity tissue (200), the expansion body (13) expands the penetrating hole (123); the expansion body (13) can be switched between a contraction position where the expansion body (13) is contacted with a tissue piercing port to contract and an expansion position where the expansion body (13) is arranged in the tissue to expand; the sewing thread (20) is matched with the penetrating hole (123); wherein the sewing needles (10) are sequentially arranged at intervals along the two sides or the circumferential edge of the abdominal cavity notch (210), and the sewing threads (20) sequentially penetrate through the sewing needles (10) located on the two sides or the circumferential edge of the abdominal cavity notch (210).

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to an abdominal suture needle assembly and its suturing method. Background Technology

[0002] The existing abdominal suture needle 100' structure, such as Figure 1 As shown, the suture includes a needle 10' and a suture 20' connected to it. The abdominal cavity defect is sutured using a needle holder. However, this type of suture has the following drawbacks: First, during laparoscopic surgery, laparoscopic instruments enter the abdominal cavity through a puncture port. The abdominal cavity is dome-shaped due to inflation, and the operating port and suture angle limit the surgeon's ability to smoothly insert and exit the needle through both sides of the tissue defect. Furthermore, due to high tension, tissue edema, or scarring at the defect, the suture may tear when tightened, causing tissue tearing and suturing failure. Second, the needle holder is difficult to keep parallel to the suture plane, especially when suturing lateral or deep defects, easily leading to "needle deviation" or "tissue avulsion." To complete the suture, the puncture port position needs to be adjusted or a special curved instrument used, which may increase the complexity of the procedure. Secondly, if a hernia hook suture is used, the suture penetrates the abdominal wall, increasing the risk of infection. Furthermore, relying on knotted sutures for tension fixation carries the risk of the suture cutting through tissue, causing tearing and suture failure. Additionally, high incision tension and difficulty in knotting within the cavity can lead to inadequate tissue apposition, affecting tissue healing. Laparoscopic knotting relies on laparoscopic instruments, which, compared to manual knotting in open surgery, results in poorer control of knot tension, lower knotting efficiency, and less stability. The risks of this procedure include: insecure knots may lead to suture loosening and re-separation of the defect, especially when using absorbable sutures, where early tension maintenance depends on knot quality. Furthermore, for complex defects (such as those involving multiple layers of peritoneum, fascia, and muscle), laparoscopic layered suturing is challenging, requiring precise control of each layer's apposition; otherwise, it may lead to disordered healing layers. Finally, the difficulty of suturing scar tissue is significant. Defect edges are often composed of scarred tissue, which is hard, has poor blood supply, and is prone to tearing during suturing. It also has weak healing ability, requiring denser suturing or the use of patches for reinforcement. However, scar tissue cannot withstand sufficient suture tension, which may lead to suture cutting into the tissue or premature detachment. While these problems can be addressed by adding a patch, patch fixation itself presents operational challenges. The patch and autologous tissue must be sutured together to evenly cover the defect edges and securely fixed. However, during laparoscopic procedures, excessively large or unevenly distributed sutures can cause patch displacement, curling, or even seroma formation. This not only weakens the patch's repair effect on the defect but may also lead to complications such as infection. Currently, there is an urgent need for an abdominal suture needle assembly and its suturing method to address these issues in the repair of abdominal wall defects. Summary of the Invention

[0003] This solution addresses the problems and needs raised above by proposing an abdominal suture needle assembly and its suturing method. Due to the adoption of the following technical features, it can achieve the above-mentioned technical objectives and bring about several other technical effects.

[0004] One object of the present invention is to provide an abdominal suture needle assembly, comprising:

[0005] A suture needle includes a needle tip and a needle body connected thereto. The needle body has a penetration hole at one end away from the needle tip. An expansion body is also provided on the needle body. During the process of the suture needle puncturing abdominal tissue, the expansion body can switch between a contracted position that contracts when in contact with the tissue insertion port and an expanded position that expands when embedded inside the tissue.

[0006] A suture thread that is adapted to the through-hole;

[0007] The suture needles are arranged at intervals along both sides or the circumferential edge of the abdominal cavity notch, and the sutures are sequentially threaded through the suture needles located on both sides or the circumferential edge of the abdominal cavity notch.

[0008] The needle and the suture are both made of tissue-absorbable material.

[0009] In addition, the abdominal suture needle assembly and suturing method according to the present invention may also have the following technical features:

[0010] In one example of the invention, the needle body includes a main body and a movable part rotatably connected to it in the circumferential direction, wherein the needle tip is formed at the end of the main body away from the movable part, and the through hole is formed at the end of the movable part opposite to the main body.

[0011] In one example of the present invention, a rotating hole is provided on one of the main body and the movable part, and a rotating body is formed on the other part to engage with and be adapted to the rotating hole, and the rotating body can rotate in the circumferential direction within the rotating cavity.

[0012] In one example of the present invention, the rotating body is provided with a deformation groove, and when the rotating body is adapted to the rotating cavity, the rotating body adapts to the rotating cavity by deformation.

[0013] In one example of the present invention, the suture includes a suture body and barbs, the barbs being arranged at least at intervals along the extension direction of the suture body and forming an acute angle with the suture body;

[0014] Wherein, the suture can only move along a first direction where the suture body and the barb form an obtuse angle under the action of the barb, and the through hole can be limited between two adjacent barbs.

[0015] In one example of the invention, the barbs are spaced apart along the circumferential direction of the line body.

[0016] In one example of the present invention, the expansion body includes: a flexible filament, one end of which is fixedly connected to the needle body, and the other end of which extends toward the end of the needle body where the through hole is provided, and forms an acute angle with the needle body;

[0017] The flexible filament can switch between a contracted position where it deforms and contracts upon contact with the port into which it is inserted into the tissue, and an expanded position where it expands and unfolds within the tissue.

[0018] In one example of the present invention, a plurality of barbs are further provided on the flexible filament, spaced apart along the length of the flexible filament, and each barb forms an acute angle with the free end direction of the flexible filament.

[0019] Another object of the present invention is to provide a suturing method for the abdominal suture needle assembly as described above, comprising the following steps:

[0020] S10: Multiple needles are sequentially threaded through the seam;

[0021] S20: The needles are inserted alternately along the two sides of the abdominal cavity notch using a needle holder, and the needles on each side of the abdominal cavity notch are arranged at intervals along the edge; wherein, during the insertion of the needles into the tissue, the expansion body can contract upon contact with the insertion port of the tissue and expand upon being embedded inside the tissue to pull the tissue and fix the needles within the tissue.

[0022] S30: Pull the suture along the first direction of the suture to bring the needles on both sides of the abdominal cavity opening closer together, thereby closing the abdominal cavity opening.

[0023] Another object of the present invention is to provide a suturing method for the abdominal suture needle assembly as described above, comprising the following steps:

[0024] W10: Multiple needles are sequentially threaded through the suture line;

[0025] W20: Insert the suture needle sequentially and at intervals along the circumferential edge of the abdominal cavity opening using a needle holder; wherein, during the insertion of the suture needle into the tissue, the expansion body can contract upon contact with the insertion port of the tissue and expand upon being embedded inside the tissue to pull the tissue and fix the suture needle within the tissue;

[0026] W30: Pull the suture along the first direction of the suture to bring the needles located around the abdominal cavity opening closer together, thereby closing the abdominal cavity opening.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The suture needle assembly in this invention can be inserted into the tissue position by the suture needle according to the tissue condition, reducing the cutting of the tissue by traditional sutures, thereby reducing the risk of tissue tearing during suture suturing;

[0029] 2. This invention, by directly inserting the suture needle into the tissue and relying on the expansion body to fix it within the tissue, greatly reduces the difficulty of operation, simplifies the operation process, and improves safety compared with traditional sutures.

[0030] 3. The structure of the relative rotation of the movable part of the needle body relative to the main body in this invention allows the fixing direction of the needle to be adjusted by rotating according to the direction of force, thereby reducing improper traction on the tissue;

[0031] 4. When using the patch for fixation, it reduces the difficulty of suturing, fixes the patch more evenly, and the sutures can make the patch fit the abdominal wall more closely.

[0032] 5. Compared with hernia hook sutures, it reduces the amount of sutures penetrating the abdominal wall, lowers the risk of infection, reduces the need for knotting within the cavity, improves efficiency, and provides stable suture fixation without relying on knotting.

[0033] The preferred embodiments of the invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the invention. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. The drawings are merely illustrative of some embodiments of the present invention and are not intended to limit the scope of the present invention to all embodiments.

[0035] Figure 1 This is a schematic diagram of the structure of a suture needle in the prior art according to an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of an abdominal suture needle assembly according to one embodiment of the present invention;

[0037] Figure 3 An exploded view of a suture needle according to one embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of an abdominal suture needle assembly according to another embodiment of the present invention;

[0039] Figure 5 An exploded view of a suture needle according to another embodiment of the present invention;

[0040] Figure 6This is a schematic diagram of the abdominal suture needle assembly according to an embodiment of the present invention, illustrating one suturing method on tissue.

[0041] Figure 7 This is a schematic diagram of another suturing method on tissue for an abdominal suture needle assembly according to an embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the abdominal suture needle assembly according to an embodiment of the present invention, showing another suturing method on tissue.

[0043] Figure 9 This is a schematic diagram of the abdominal suture needle assembly according to an embodiment of the present invention, illustrating another suturing method on tissue.

[0044] Figure 10 The clamping structure of the front end of the clamp according to an embodiment of the present invention.

[0045] List of reference numerals in the attached diagram:

[0046] Needle holder 300;

[0047] Clamping body 310;

[0048] First clamping groove 311;

[0049] First hemispherical cavity 312;

[0050] 320 active bodies;

[0051] Second clamping groove 321;

[0052] Second hemispherical cavity 322;

[0053] Cavity 301;

[0054] 100mm suture needle;

[0055] 10' stitches;

[0056] 20' stitches;

[0057] 200 abdominal tissues;

[0058] Abdominal cavity notch 210;

[0059] Suture needle assembly 100;

[0060] 10 stitches;

[0061] Needle 11;

[0062] Needle body 12;

[0063] Main body 121;

[0064] Activities Department 122;

[0065] Through hole 123;

[0066] 124mm bore;

[0067] First hole structure 1241;

[0068] Second hole structure 1242;

[0069] 125-degree turn;

[0070] First shaft 1251;

[0071] Second shaft 1252;

[0072] Expansion body 13;

[0073] Flexible filament 131;

[0074] 20 stitches;

[0075] Line body 21;

[0076] barbed body 22;

[0077] Patch 30;

[0078] First direction X;

[0079] Second direction Y. Detailed Implementation

[0080] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0081] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0082] An abdominal suture needle assembly 100 according to a first aspect of the present invention, such as Figures 2 to 5 As shown, it includes:

[0083] The suture needle 10 includes a needle tip 11 and a needle body 12 connected thereto. The needle body 12 has a penetration hole 123 at one end away from the needle tip 11. An expansion body 13 is also provided on the needle body 12. During the process of the suture needle 10 puncturing the abdominal tissue 200, the expansion body 13 can switch between a contracted position that contracts when in contact with the tissue insertion port and an expanded position that expands when embedded inside the tissue.

[0084] The sewing thread 20 is adapted to the through hole 123;

[0085] The suture needles 10 are arranged sequentially at intervals along both sides or the circumferential edge of the abdominal cavity notch 210, and the sutures 20 are alternately threaded through the suture needles 10 located on both sides or the circumferential edge of the abdominal cavity notch 210.

[0086] The needle 10 and the suture 20 are both made of tissue-absorbable materials. For example, the materials used to make the needle 10 and the suture 20 are composite materials such as poly(p-dioxanone) (PPDO), copolymers of glycolide and ε-caprolactone, and poly(p-dioxanone) containing triclosan.

[0087] When the abdominal cavity notch 210 is a long and narrow notch, the specific method of using the abdominal cavity suture needle assembly 100 is as follows: multiple suture needles 10 are sequentially inserted through the suture 20; the suture needles 10 are sequentially and alternately inserted along both sides of the abdominal cavity notch 210, and the suture needles 10 on each side of the abdominal cavity notch 210 are arranged at intervals along the edge; wherein, during the process of the suture needles 10 piercing the tissue, the expansion body 13 can contract upon contact with the port of insertion into the tissue and expand upon being embedded inside the tissue to fix the suture needles 10 within the tissue; the suture 20 is pulled along the first direction X of the suture 20 to cause the suture needles 10 located on both sides of the abdominal cavity notch 210 to contract, thereby closing the abdominal cavity notch 210.

[0088] When the abdominal cavity notch 210 is a circular notch, the specific method of using the abdominal cavity suture needle assembly 100 is as follows: multiple suture needles 10 are sequentially inserted through the suture 20; the suture needles 10 are sequentially inserted at intervals along the circumferential edge of the abdominal cavity notch 210; wherein, during the process of the suture needle 10 piercing the tissue, the expansion body 13 can contract upon contact with the port of insertion into the tissue and expand upon being embedded inside the tissue to pull the tissue and fix the suture needle 10 within the tissue; the suture 20 is pulled along the first direction X of the suture 20 so that the suture needles 10 located around the abdominal cavity notch 210 move closer to each other, thereby closing the abdominal cavity notch 210.

[0089] The suture needle assembly 100 in the abdominal cavity suture needle assembly 100 can be inserted into the tissue position through the suture needle 10 according to the tissue condition, reducing the cutting of the tissue by the traditional suture 20, thereby reducing the risk of tissue suture tearing; the abdominal cavity suture needle assembly 100 directly inserts the suture needle 10 into the tissue and relies on the expansion body 13 to fix it in the tissue, which greatly reduces the operation difficulty, simplifies the operation process, and improves safety compared with traditional sutures; compared with the suturing of hernia hook needles, the abdominal cavity suture needle assembly 100 reduces the suture 20 to penetrate the abdominal wall for suturing, reduces the risk of infection, reduces the operation of knotting in the cavity, improves efficiency, and the suture fixation is stable and does not rely on knotting fixation.

[0090] In one example of the present invention, the needle body 12 includes a main body 121 and a movable part 122 that is rotatably connected to it in the circumferential direction, wherein the needle tip 11 is formed at one end of the main body 121 away from the movable part 122, and the through hole 123 is formed at one end of the movable part 122 opposite to the main body 121.

[0091] Specifically, the needle body 12 includes a main body 121 and a movable part 122, and the movable part 122 is capable of circumferential rotation relative to the main body 121, thereby adjusting the overall fixed direction of the needle body 12. It can be understood that the movable part 122 is located on the outside of the tissue, while the main body 121 is inserted into the inside of the tissue, so that the tissue will not be damaged when the movable part 122 rotates circumferentially.

[0092] In other words, the structure of the relative rotation of the movable part 122 of the needle body 12 with respect to the main body 121 allows the fixed direction of the suture needle 10 to be adjusted by rotating with the direction of force, thereby reducing improper traction on the tissue.

[0093] In one example of the present invention, one of the main body 121 and the movable part 122 is provided with a rotating hole 124, and the other is provided with a rotating body 125 that is engaged and adapted to the rotating hole 124, and the rotating body 125 can rotate in the circumferential direction within the rotating cavity 124.

[0094] For example, a rotating hole 124 is provided in the circumferential direction of the main body 121, and a rotating body 125 is formed on the movable part 122 that is engaged and adapted to the rotating hole 124.

[0095] For example, a rotating hole 124 is provided in the circumferential direction of the movable part 122, and a rotating body 125 is formed on the main body 121 to engage and match the rotating hole 124.

[0096] Both of the above connection methods can enable the movable part 122 to rotate relative to the main body 121 in the circumferential direction, thereby achieving the adjustment of the fixed direction of the needle body 12.

[0097] In one example of the present invention, such as Figures 2-5 As shown, the rotating body 125 is provided with a deformation groove 1251. When the rotating body 125 is adapted to the rotating cavity 124, the rotating body 125 adapts to the rotating cavity 124 by deformation.

[0098] For example, such as Figure 2 and Figure 3 As shown, the rotating cavity 124 is a spherical cavity, while the rotating body 125 is a spherical solid. The rotating cavity 124 has an opening 1241 that communicates with the cavity, while the rotating body 125 has a deformation groove 1251. The width of the deformation groove 1251 gradually increases from the side away from the rotating cavity 124 to the side closer to the rotating cavity 124, so that the deformation amount at the end closer to the rotating cavity 124 is larger than that at the end away from the rotating cavity 124. During the process of the rotating body 125 and the rotating cavity 124 fitting together, the deformation groove 1251 of the rotating body 125 is first pressed by external force to gradually reduce the closing size of its open end. Then, the smaller rotating body 125 is pressed against the open end of the rotating cavity 124. After the rotating body 125 enters the rotating cavity 124, the deformation groove 1251 is released and gradually opens, so that the rotating body 125 can fit into the rotating cavity 124. Because the rotating body 125 has a spherical structure, the movable part 122 can rotate circumferentially relative to the main body 121.

[0099] For example, such as Figure 4 and Figure 5 As shown, the rotating cavity 124 is a columnar structure, which is a chamber formed on the main body 121 and has an open end. Engagement holes 1241 communicating with the rotating cavity 124 are spaced apart along the circumferential direction of the rotating cavity 124. For example, there are two engagement holes 1241, evenly spaced along the circumferential direction of the rotating cavity 124. The rotating body 125 is also a columnar structure, and a deformation groove 1251 is formed on the rotating body 125. The width of the deformation groove 1251 gradually increases from the side away from the rotating cavity 124 to the side closer to the rotating cavity 124, so that the deformation at the end closer to the rotating cavity 124 is larger than that at the end away from the rotating cavity 124. One end of the rotating body 125 has a snap-fit ​​protrusion 1252. For example, there are two snap-fit ​​protrusions 1252, which are evenly spaced along the circumferential direction of the rotating body 125. During the process of the rotating body 125 adapting to the rotating cavity 124, the deformation groove 1251 of the rotating body 125 is first pressed by external force to gradually reduce the closing size of its open end. Then, the smaller rotating body 125 is pressed against the open end of the rotating cavity 124. After the rotating body 125 enters the rotating cavity 124, the rotating body 125 moves along the length of the rotating cavity 125 until it reaches the snap-fit ​​hole 1241. The deformation groove 1251 is released and gradually opens, so that the snap-fit ​​protrusion 1252 of the rotating body 125 can adapt to the snap-fit ​​hole 1241 of the rotating cavity 124. Since the snap-fit ​​hole 1241 is opened along the circumferential direction of the rotating cavity 124, the movable part 122 can rotate circumferentially relative to the main body 121.

[0100] It should be noted that each snap-fit ​​hole 1241 is an elongated hole, which is distributed along the circumferential direction of the rotating cavity 124, so that the snap-fit ​​protrusion 1252 can move within the snap-fit ​​hole 1241 along the circumferential direction.

[0101] In one example of the present invention, the suture 20 includes a suture body 21 and barbs 22, the barbs 22 being arranged at least at intervals along the extension direction of the suture body 21 and forming an acute angle with the suture body 21.

[0102] Wherein, the suture 20 can only move along the first direction X, which forms an obtuse angle between the suture body 21 and the barb 22, under the action of the barb 22, and the through hole 123 can be limited between two adjacent barbs 22.

[0103] In other words, the first direction X is the direction in which the suture body 21 can form an obtuse angle with the barb 22, and the suture 20 can only move along the first direction X. Once the suture 20 is moved from the second direction Y, which is opposite to the first direction X, the barb 22 will abut against the insertion hole 123, thereby limiting the movement of the suture body 21. When suturing the wound, the above structure can position the closure position of the wound and prevent the suture 20 from moving in the opposite direction and causing secondary damage to the abdominal cavity incision 210.

[0104] In one example of the present invention, the barbs 22 are spaced apart along the circumferential direction of the line body 21;

[0105] For example, barbs 22 are symmetrically arranged on both sides of the central axis of the line body 21, with barbs 22 spaced apart on each side, and the barbs 22 have the same tilt direction and tilt angle as the line body 21.

[0106] By arranging barbs 22 at intervals in the circumferential direction of the thread body 21, the reliability of the barbs 22 in limiting the needle 10 can be greatly improved.

[0107] In one example of the present invention, the expansion body 13 includes: a flexible filament 131, one end of which is fixedly connected to the needle body 12, and the other end of which extends toward the end of the needle body 12 where a through hole 123 is provided, and forms an acute angle with the needle body 12.

[0108] The flexible filament 131 can switch between a contracted position where it deforms and contracts upon contact with the port into which it is inserted into the tissue and an expanded position where it unfolds and expands inside the tissue.

[0109] In other words, the flexible filament 131 is in an unfolded state when not subjected to external force. When the suture needle 10 pierces the tissue, it enters the tissue along with the flexible filament 131. The flexible filament 131 is compressed and deformed at the piercing point. After the flexible filament 131 enters the tissue, it expands and abuts against the lower end of the tissue under the action of elastic recovery force, thereby fixing the suture needle 10 in the tissue. The expansion body 13 can stably fix the suture needle 10 in the tissue through its own expansion and contraction deformation, thereby improving the reliability of the suture needle 10 fixation.

[0110] Preferably, the expander 13 is made of a tissue-absorbable material. For example, the material of the expander 13 is a composite material such as poly(p-dioxanone) (PPDO), a copolymer of glycolide and ε-caprolactone, or a poly(p-dioxanone) containing triclosan.

[0111] In one example of the present invention, the flexible filaments 131 include a plurality of filaments and are spaced apart along the circumferential direction of the needle body 12; by providing a plurality of flexible filaments 131, the stability and reliability of the suture needle 10 in the tissue can be further improved.

[0112] In one example of the present invention, a plurality of barbs 1311 are also provided on the flexible filament 131 and are spaced apart along the length direction of the flexible filament 131, and each barb forms an acute angle with the free end direction of the flexible filament.

[0113] By setting the barb 1311, the expansion body 13 can effectively pull the tissue after entering the tissue, making it difficult to pull out of the tissue, which greatly improves the reliability and stability of the needle body 12 in the tissue.

[0114] In one example of the present invention, it further includes: a patch 30 disposed at the lower end of the abdominal cavity notch 210, through which the suture needle 10 passes;

[0115] To avoid the risk of insufficient holding force of scar tissue on suture 20, which could lead to suture 20 cutting the tissue or premature detachment, a patch 30 is added. The abdominal wall defect is repaired by combining the patch 30 with the autologous tissue. The patch 30 is sutured to the autologous tissue, and the suture needle 10 is used to evenly cover the edge of the defect and fix it firmly. In addition, when adding the patch 30, attention should be paid to the suture spacing in this application when fixing the patch 30 under laparoscopy. This makes it easy to control the suture spacing, avoiding the possibility that the patch 30 may shift, curl, or form a seroma if it is too large or unevenly distributed, which greatly reduces the collaborative challenges brought about by the fixation of the patch 30.

[0116] According to a second aspect of the present invention, a suturing method for the abdominal suture needle assembly 100 as described above, such as... Figures 6 to 7 As shown, it includes the following steps:

[0117] S10: Multiple needles 10 are sequentially threaded through the suture 20;

[0118] S20: The needles 10 are inserted alternately along both sides of the abdominal cavity notch 210 by the needle holder 300, and the needles 10 on each side of the abdominal cavity notch 210 are arranged at intervals along the edge; wherein, during the process of the needles 10 piercing the tissue, the expansion body 13 can contract upon contact with the port of insertion into the tissue and expand upon being embedded inside the tissue to pull the tissue and fix the needles 10 within the tissue;

[0119] S30: Pull the suture 20 along the first direction of the suture 20 so that the suture needles 10 located on both sides of the abdominal cavity opening 210 come together, thereby closing the abdominal cavity opening.

[0120] In this suturing method, the suture needle assembly 100 can be inserted into the tissue position through the suture needle 10 according to the tissue condition, reducing the cutting of the tissue by the traditional suture 20, thereby reducing the risk of tissue suture tearing;

[0121] This suturing method, by directly inserting the needle 10 into the tissue and fixing it within the tissue using the expansion body 13, significantly reduces operational difficulty, simplifies the procedure, and improves safety compared to traditional sutures. The relative rotational structure of the movable part 122 of the needle body 12 relative to the main body 121 allows the fixing direction of the needle 10 to be adjusted by rotating according to the direction of force, reducing undue traction on the tissue. When used in conjunction with patch 30 fixation, this method reduces suturing difficulty, provides more even fixation of the patch 30, and allows the suture 20 to better adhere the patch 30 to the abdominal wall. Compared to hernia hook suturing, this method reduces the need for the suture 20 to penetrate the abdominal wall, lowering the risk of infection, reducing the need for knotting within the cavity, improving efficiency, and ensuring stable fixation without relying on knotting.

[0122] In one example of the present invention, such as Figure 7 As shown, the projection of a suture needle 10 located on one side of the abdominal cavity notch 210 onto the other side of the abdominal cavity notch 210 is located between two adjacent suture needles 10 on that side.

[0123] In other words, the positions of the suture needles 10 located on both sides of the abdominal cavity notch 210 are not in a one-to-one correspondence, but are arranged in a staggered manner. That is, the projection of a certain suture needle 10 on one side of the abdominal cavity notch 210 on the other side is located between two adjacent suture needles 10 on that side. This arrangement can improve the reliability and safety of suturing.

[0124] In one example of the present invention, such as Figure 8 As shown, in order to reduce tension, at least one suture needle 10 is arranged side by side at the suture needle 10 on each side of the abdominal cavity notch 210. At this time, the suture needle 10 is arranged sequentially on both sides of the abdominal cavity notch 210, and the suture 20 is tightened appropriately during the arrangement process.

[0125] It should be noted that the needle holder 300 is existing technology, such as... Figure 10 As shown, a clamping body 310 and a movable body 320 are provided at the front end of the needle holder 300. The movable body 320 is movably connected to the clamping body 310. A first clamping groove 311 is formed on the clamping body 310 along its length, and a second clamping groove 321 is formed on the movable body 320 along its length. The needle 10 is held in place by forming a clamping cavity by controlling the angle of movement of the movable body 320. The difference from the existing needle holder 300 is that the clamping opening at the front end of the needle holder 300 matches the outer contour of the needle 10, for example, as shown. Figure 2 , Figure 3 As shown, since the needle body 12 of the sewing needle 10 is provided with a rotating hole 24 and a rotating body 125 structure, its overall structure is roughly spherical. Therefore, a spherical cavity 301 is provided at the clamping opening to clamp the sewing needle 10. That is, a first hemispherical cavity 312 is provided on the clamping body 310, and a second hemispherical cavity 322 is formed on the movable body 320. When the clamping opening is in the clamping state, the first hemispherical cavity 312 and the second hemispherical cavity 322 together define the cavity 301 to clamp the sewing needle 10.

[0126] Of course, the structure at the reinforcement opening can also be other structures, such as the structure of the suture needle 10. Figure 4 and Figure 5 As shown, the structural outline of the cavity 301 is similar to that of... Figure 4 and Figure 5 The outer contour of the needle body 12 is consistent, so it will not be described again here.

[0127] According to a third aspect of the present invention, a suturing method for an abdominal suture needle assembly as described above, such as... Figure 9 As shown, it includes the following steps:

[0128] W10: Multiple needles 10 are sequentially threaded through the suture 20;

[0129] W20: Insert the suture needles 10 sequentially and at intervals along the circumferential edge of the abdominal cavity notch 210 using the needle holder 300; wherein, during the insertion of the suture needles 10 into the tissue, the expansion body 13 can contract upon contact with the insertion port of the tissue and expand upon being embedded inside the tissue to pull the tissue and fix the suture needles 10 within the tissue.

[0130] W30: Pull the suture 20 along the first direction of the suture 20 so that the suture needles 10 located around the abdominal cavity opening 210 come together, thereby closing the abdominal cavity opening 210.

[0131] In this suturing method, the suture needle assembly 100 can be inserted into the tissue position through the suture needle 10 according to the tissue condition, reducing the cutting of the tissue by the traditional suture 20, thereby reducing the risk of tissue tearing. This suturing method, by directly inserting the suture needle 10 into the tissue and relying on the expansion body 13 to fix it in the tissue, greatly reduces the difficulty of operation, simplifies the operation process, and improves safety compared with traditional sutures. The structure of the relative rotation of the movable part 122 of the needle body 12 relative to the main body 121 in this suturing method allows the fixing direction of the suture needle 10 to be adjusted by rotating according to the direction of force, reducing improper traction on the tissue. This suturing method reduces the difficulty of suturing when used with patch 30 fixation, fixes patch 30 more evenly, and the suture 20 can make patch 30 fit more tightly against the abdominal wall. Compared with hernia hook suturing, this suturing method reduces the penetration of the abdominal wall by the suture 20, reduces the risk of infection, reduces the operation of knotting in the cavity, improves efficiency, and the suturing fixation is stable and does not rely on knotting fixation.

[0132] The foregoing has described in detail, with reference to preferred embodiments, exemplary implementations of the abdominal suture needle assembly 100 and its suturing method proposed in this invention. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of this invention, and various combinations can be made to the various technical features and structures proposed in this invention without exceeding the protection scope of this invention, which is determined by the appended claims.

Claims

1. An abdominal suture needle assembly, characterized in that, include: The suture needle (10) includes a needle tip (11) and a needle body (12) connected thereto. The needle body (12) has a penetration hole (123) at one end away from the needle tip (11). The needle body (12) is also provided with an expansion body (13). During the process of the suture needle (10) puncturing the abdominal tissue (200), the expansion body (13) can switch between a contracted position that contracts when in contact with the port of tissue insertion and an expanded position that expands when embedded inside the tissue. A suture (20) that is adapted to the through hole (123); The suture needles (10) are arranged sequentially at intervals along both sides or the circumferential edge of the abdominal cavity notch (210), and the sutures (20) are sequentially threaded through the suture needles (10) located on both sides or the circumferential edge of the abdominal cavity notch (210). The needle (10) and the suture (20) are both made of tissue-absorbable material.

2. The abdominal suture needle assembly according to claim 1, characterized in that, The needle body (12) includes a main body (121) and a movable part (122) that is rotatably connected to it in the circumferential direction. The needle tip (11) is formed at one end of the main body (121) away from the movable part (122), and the through hole (123) is opened at one end of the movable part (122) away from the main body (121).

3. The abdominal suture needle assembly according to claim 2, characterized in that, Of the main body (121) and the movable part (122), one has a rotating cavity (124) and the other has a rotating body (125) that engages with the rotating hole (124), and the rotating body (125) can rotate in the circumferential direction within the rotating cavity (124).

4. The abdominal suture needle assembly according to claim 3, characterized in that, The rotating body (125) is provided with a deformation groove (1251). When the rotating body (125) is adapted to the rotating cavity (124), the rotating body (125) adapts to the rotating cavity (124) through deformation.

5. The abdominal suture needle assembly according to claim 1, characterized in that, The suture (20) includes a suture body (21) and barbs (22), wherein the barbs (22) are arranged at least at intervals along the extension direction of the suture body (21) and form an acute angle with the suture body (21); The suture (20) can only move along the first direction (X) where the suture body (21) and the barb (22) form an obtuse angle under the action of the barb (22), and the through hole (123) can be confined between two adjacent barbs (22).

6. The abdominal suture needle assembly according to claim 5, characterized in that, The barbs (22) are spaced apart along the circumferential direction of the line body (21).

7. The abdominal suture needle assembly according to claim 1, characterized in that, The expansion body (13) includes: a flexible filament (131), one end of which is fixedly connected to the needle body (12), and the other end of which extends toward the end of the needle body (12) that is provided with a through hole (123) and forms an acute angle with the needle body (12); The flexible filament (131) can switch between a contracted position where it deforms and contracts upon contact with the port into which the tissue is inserted and an expanded position where it expands and unfolds within the tissue.

8. The abdominal suture needle assembly according to claim 7, characterized in that, The flexible filament (131) is also provided with a plurality of barbs (1311), which are spaced apart along the length of the flexible filament (131), and each barb (1311) forms an acute angle with the free end of the flexible filament (131).

9. A suturing method for an abdominal suture needle assembly as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S10: A plurality of needles (10) are sequentially threaded through the suture (20); S20: The suture needles (10) are inserted alternately along the two sides of the abdominal cavity notch (210) by the needle holder (300), and the suture needles (10) on each side of the abdominal cavity notch (210) are arranged at intervals along the edge; wherein, during the process of the suture needles (10) being inserted into the tissue, the expansion body (13) can contract upon contact with the port of insertion into the tissue and expand upon being embedded inside the tissue to pull the tissue and fix the suture needles (10) in the tissue; S30: Pull the suture (20) along the first direction of the suture (20) so that the suture needles (10) on both sides of the abdominal cavity opening (210) come together, thereby closing the abdominal cavity opening (210).

10. A suturing method for an abdominal suture needle assembly as described in any one of claims 1 to 8, characterized in that, Includes the following steps: W10: Multiple needles (10) are sequentially threaded through the suture (20); W20: Insert the suture needle (10) sequentially at intervals along the circumferential edge of the abdominal cavity notch (210) using the needle holder (300); wherein, during the insertion of the suture needle (10) into the tissue, the expansion body (13) is able to contract upon contact with the insertion port of the tissue and expand inside the tissue to pull the tissue and fix the suture needle (10) within the tissue; W30: Pull the suture (20) along the first direction of the suture (20) so that the suture needles (10) located around the abdominal cavity opening (210) come together, thereby closing the abdominal cavity opening (210).

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