Novel surgical wire passing device

Abstract

The application provides a novel surgical thread passing device which solves the problem that the thread passing device is inconvenient to guide multiple groups of suture threads, and comprises two thread passing device bodies, the thread passing device bodies are respectively connected with thread passing rods, the thread passing rods are provided with offset portions which are bent relative to the thread passing rods at the end of the thread passing rods, the offset portions of the thread passing device bodies are opposite in bending direction, the end of the offset portions is provided with a thread clamping assembly which is used for clamping multiple groups of suture threads, and the thread passing device bodies are provided with linkage assemblies which drive the thread clamping assembly to open and close. The application has the advantages of convenient threading and stable structure.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a novel surgical suture device. Background Technology

[0002] Surgical sutures are special threads used in surgical procedures or trauma treatment for ligation and suturing to stop bleeding and for tissue repair. They are divided into absorbable and non-absorbable sutures. Suturing is essential for both repair and reconstruction after tissue incision, making it a fundamental surgical technique. Depending on the situation, various suturing methods can be used, such as interrupted sutures and continuous sutures; tension-reducing sutures to strengthen the closure of each layer of the incision; and purse-string sutures to bury the stump after appendectomy and close perforated intestines. Suturing should be performed with precise and accurate alignment layer by layer. Superficial sutures should not be left untreated, as this can lead to blood and fluid accumulation, hindering healing and causing infection. After skin suturing, the area should be slightly raised, and the ligatures should be appropriately tight. Suture density should be determined based on factors such as location, tension, and aesthetics; the size and quality of the surgery should not be judged solely by the number of sutures. During surgery, sutures are often used to thread tissue, but conventional threading devices cannot meet the needs of threading multiple sets of sutures. Furthermore, suture slippage can occur during threading.

[0003] To address the shortcomings of existing technologies, people have conducted long-term research and proposed various solutions. For example, Chinese patent literature discloses a suture passer for posterior cruciate ligament reconstruction surgery [202022494798.3], which includes an operating handle, a suture passer fixed to one side of the operating handle, a suture passer sleeve fixed to the front end of the operating handle, the suture passer sleeve being coaxially arranged with the operating handle, a suture pusher inserted into the suture passer sleeve, the suture pusher being connected to a pushing mechanism disposed in the operating handle, the suture pusher extending or retracting from the suture passer sleeve under the pushing and pulling action of the pushing mechanism, and the front end of the suture pusher bending towards the pushing mechanism side of the suture passer sleeve after extending from the suture passer sleeve.

[0004] The above solution has solved the problem of sutures falling off during traction to some extent, but it still has many shortcomings, such as the inconvenience of puncturing multiple sets of sutures. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a novel surgical suture-passing device that is reasonably designed and facilitates the puncture of multiple sets of sutures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This novel surgical suture guiding device includes two suture guiding bodies, each connected to a suture guiding rod. The ends of the suture guiding rods have offset portions that bend relative to the suture guiding rods. The bending directions of the offset portions of the suture guiding bodies are opposite. A suture clamping assembly for holding multiple sets of sutures is installed at the end of the offset portion. A linkage component is provided within the suture guiding body to drive the opening and closing of the suture clamping assembly. The suture clamping assembly within the offset portion of the suture guiding body can hold multiple sets of sutures, and the equipped linkage component allows the operator to control its opening and closing, achieving tissue threading.

[0007] In the aforementioned novel surgical suture guiding device, the suture guide rod is rotatably mounted at the end of the suture guide body. An adjustment component is provided between the suture guide rod and the suture guide body to limit the circumferential angle of the offset portion relative to the central axis of the suture guide rod. The suture guide rod is connected to the suture guide body via a detachable component. Appropriate specifications of the suture guide rod and its clamping component can be selected according to actual needs to meet the suture traction requirements of different surgeries.

[0008] In the aforementioned novel surgical suture guiding device, the detachable component includes a disassembly / assembly hole located at the end of the suture guide body for inserting the suture guide rod. The disassembly / assembly hole contains locking grooves distributed on both sides of the suture guide rod. A locking block is slidably installed within the locking grooves. A locking handle is rotatably installed inside the suture guide body. The locking handle has a toggle part extending to the outside of the suture guide body and a rotating part rotatably installed inside the suture guide body. An elastic element is provided between the rotating part and the suture guide body. The rotating part has a reset block that presses against the end of the locking block. A guide slope between the reset block and the locking block guides the locking blocks closer together. The adjustment component includes adjustment grooves distributed circumferentially outward along the suture guide rod. The adjustment grooves allow the locking blocks to be inserted, and interlocking adjustment teeth are provided between the adjustment grooves and the locking blocks. A guide arc surface is provided on the side of the locking block opposite to the disassembly / assembly port, guiding the suture guide rod to insert between the locking blocks. The detachable component connects the linkage component and the suture clamping component, exhibiting good locking stability and ensuring smooth transmission of push-pull torque.

[0009] In the aforementioned novel surgical suture guiding device, the suture clamping assembly includes a suture needle body telescopically mounted inside the offset section. The side of the suture needle body is provided with several suture clamping grooves radially inclined relative to the suture needle body, arranged along the axial direction of the suture needle body. The suture needle body is connected to a pull rod made of a tough material, which passes through the suture guide rod. The pull rod is drivenly connected to a linkage assembly. The suture needle body in the suture clamping assembly telescopically extends and retracts within the offset section. The range of motion is adjusted by the linkage assembly, thereby controlling the opening and closing of the suture clamping grooves at different positions, enabling complex suture threading operations.

[0010] In the aforementioned novel surgical suture guiding device, the linkage assembly includes a linkage disc rotatably mounted within the suture guide body, with an elastic element positioned between the linkage disc and the suture guide body. The linkage disc is connected to a linkage handle extending to the outside of the suture guide body. The linkage disc meshes with a linkage gear rotatably mounted within the suture guide body, which in turn meshes with a linkage rack. The linkage rack is equipped with a locking assembly for connecting a pull rod, and a limiting assembly for adjusting the sliding range of the linkage rack is positioned between the linkage rack and the suture guide body. Moving the linkage handle moves the pull rod, and the limiting assembly adjusts the range of motion of the pull rod.

[0011] In the aforementioned novel surgical suture guiding device, the snap-fit ​​assembly includes a pair of snap-fit ​​blocks mounted at the ends of a linkage rack. The snap-fit ​​blocks are made of elastic material and separate under elastic force. A retaining sleeve is slidably fitted on the outer side of each snap-fit ​​block to keep them clamped and fitted together. A snap-fit ​​groove is provided between the snap-fit ​​blocks. A snap-fit ​​ball is provided at the end of the pull rod for clamping and fixing within the snap-fit ​​groove. The retaining sleeve is slidably connected to the linkage rack via a retaining rod. An elastic element is provided between the linkage rack and the retaining rod. The retaining rod has a retaining protrusion extending to the outer side of the suture guide body. After the snap-fit ​​blocks are clamped, the snap-fit ​​grooves between them provide a good clamping and fixing effect on the snap-fit ​​ball, while not affecting the rotation adjustment of the suture guide rod's circumferential angle.

[0012] In the aforementioned novel surgical suture guiding device, the limiting component includes a first limiting protrusion disposed on the side of the linkage gear. A limiting handwheel, whose center engages with the linkage gear, is rotatably mounted on the outer side of the suture guide body. A second limiting protrusion is disposed on the side of the limiting handwheel opposite to the linkage gear. A limiting groove is formed on the side of the suture guide body for the first and second limiting protrusions to insert and slide. Several corresponding limiting protrusions and limiting grooves are disposed between the inner side of the limiting handwheel and the suture guide body. An elastic element is disposed inside the suture guide body to press and clamp the limiting handwheel against the suture guide body. The limiting component restricts the rotation range of the linkage gear through the limiting handwheel and also has a self-locking structure.

[0013] In the aforementioned novel surgical suture device, the suture clamping assembly includes a suture-passing block telescopically mounted inside the offset section. A suture-passing gripper is rotatably connected to the end of the suture-passing block. The gripper has a separation protrusion extending into the interior of the suture-passing block. A separation push block is slidably mounted inside the suture-passing block. A separation arc surface is provided between the push block and the separation protrusion to guide the separation protrusion closer together. An elastic element is provided between the push block and the suture-passing block. Another suture clamping assembly holds the suture via the gripper for delicate surgical procedures.

[0014] In the aforementioned novel surgical suture guiding device, the suture guide body includes symmetrically assembled outer shells connected by embedded splicing components. Sealing components are provided at the seams of the outer shells. The suture guide body has a gripping part with through holes and an extension part connected to the suture guide rod. The outer shells are connected by splicing, facilitating assembly and maintenance while ensuring a smooth outer surface at the joints of the suture guide body.

[0015] In the aforementioned novel surgical suture guiding device, the embedded splicing assembly includes a splicing groove located on the inner side of the outer shell edge, and a splicing buckle located on the inner side of another outer shell edge, which inserts into the splicing groove. Threaded components are provided between the outer shells. The sealing assembly includes a sealing strip located on the inner side of the outer shell edge, and a sealing film covers the outer side of the suture guide body. The embedded splicing assembly and the sealing assembly work together to ensure that the suture guide body has good sealing performance and structural stability.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the two suture guide bodies work together, and the suture clamping assembly opens and closes through the linkage component, which can realize the clamping and traction of multiple sets of sutures; the orientation of the suture guide rod and the offset part at its end can be adjusted as needed to adapt to the suture threading requirements of different surgeries; the suture clamping assembly is optional, which facilitates the pulling of sutures and the performance of complex surgical operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of the wire guide of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of another wire guide body of the present invention;

[0020] Figure 4 This is a schematic diagram of the outer shell of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the detachable component of the present invention;

[0023] Figure 7 This is a partial schematic diagram of the adjustment component of the present invention;

[0024] Figure 8 This is a partial cross-sectional view of the limiting component of the present invention;

[0025] Figure 9 This is a schematic diagram of the wire clamping assembly according to Embodiment 1 of the present invention;

[0026] Figure 10This is a schematic diagram of the wire clamping assembly according to Embodiment 2 of the present invention;

[0027] In the diagram, the following components are included: main body 1, outer shell 11, gripping part 12, extension part 13, splicing groove 14, splicing buckle 15, sealing strip 16, sealing film 17, wire guide rod 2, offset part 21, disassembly hole 22, locking groove 23, locking block 24, locking handle 25, toggle part 26, rotating part 27, reset block 28, guide slope 29, wire clamping assembly 3, wire guide needle body 31, wire clamping groove 32, pulling rod 33, wire guide claw 35, separation protrusion 36, separation push block 37, and separation mechanism. 38. Arc surface 4. Linkage component 4. Linkage disc 41. Linkage handle 42. Linkage gear 43. Linkage rack 44. Snap-fit ​​component 5. Snap-fit ​​block 51. Converging sleeve 52. Snap-fit ​​groove 53. Snap-fit ​​ball 54. Converging rod 55. Converging protrusion 56. Limiting component 6. First limiting protrusion 61. Limiting handwheel 62. Second limiting protrusion 63. Limiting slide 64. Limiting protrusion 65. Limiting groove 66. Adjusting component 7. Adjusting groove 71. Adjusting tooth 72. Guide arc surface 73. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] like Figure 1-9 As shown, this novel surgical suture guiding device includes two suture guide bodies 1, each connected to a suture guide rod 2. Each suture guide rod 2 has an offset portion 21 at its end, bent in opposite directions. A clamping assembly 3 for holding multiple sets of sutures is installed at the end of the offset portion 21. A linkage assembly 4 is provided inside the suture guide body 1 to open and close the clamping assembly 3. When the suture guide rod 2 of the suture guide body 1 is threaded, the offset portion 21 at its end is offset to the left or right. The clamping assembly 3 inside can clamp multiple sets of sutures at once. The operator opens and closes the clamping assembly 3 by using the linkage assembly 4 inside the suture guide body 1, thus controlling the release and retraction of the sutures.

[0031] Specifically, the wire guide rod 2 is rotatably mounted at the end of the wire guide body 1. An adjustment assembly 7, which limits the circumferential angle of the offset portion 21 relative to the central axis of the wire guide rod 2, is provided between the wire guide rod 2 and the wire guide body 1. The wire guide rod 2 is connected to the wire guide body 1 via a detachable assembly. The wire guide rod 2 can rotate relative to the wire guide body 1 to further adjust the orientation angle of the offset portion 21. The adjustment assembly 7 tightens and fixes the wire guide rod 2. The detachable assembly is used for disassembling and replacing the wire guide rod 2 and its clamping assembly 3, and is linked to the adjustment assembly 7.

[0032] Specifically, the detachable component includes a disassembly hole 22 located at the end of the wire guide body 1 for inserting the wire guide rod 2. The disassembly hole 22 contains locking grooves 23 distributed on both sides of the wire guide rod 2. A locking block 24 is slidably installed within the locking grooves 23. A locking handle 25 is rotatably installed inside the wire guide body 1. The locking handle 25 has a toggle portion 26 extending to the outside of the wire guide body 1 and a rotating portion 27 rotatably installed inside the wire guide body 1. An elastic element is provided between the rotating portion 27 and the wire guide body 1. The rotating part 27 has a reset block 28 that presses against the end of the locking block 24. A guide slope 29 between the reset block 28 and the locking block 24 guides the locking blocks 24 closer together. The adjusting assembly 7 includes adjusting grooves 71 distributed outwards along the circumference of the cable guide 2. The adjusting grooves 71 allow the locking blocks 24 to be inserted, and adjusting teeth 72 mesh between the adjusting grooves 71 and the locking blocks 24. A guide arc surface 73 is provided on the side of the locking block 24 opposite to the disassembly / removal port, guiding the cable guide 2 to be inserted between the locking blocks 24. When the operator presses the actuating part 26 of the locking handle 25, its rotating part 27 drives the reset block 28 to rotate. During the upward movement of the reset block 28, the guide slope 29 guides the locking blocks 24 away from each other, widening the distance between the locking blocks 24 for insertion of the cable guide 2. The locking blocks 24 apply a clamping force to the cable guide 2 under the action of corresponding elastic elements. The adjusting teeth 72 are positioned between the locking block 24 and the wire guide rod 2 and mesh with each other to prevent the wire guide rod 2 from rotating.

[0033] Furthermore, the suture clamping assembly 3 includes a thread guide needle body 31 telescopically installed inside the offset part 21. The side of the thread guide needle body 31 is provided with several thread clamping grooves 32 radially inclined relative to the thread guide needle body 31. The thread clamping grooves 32 are arranged axially along the thread guide needle body 31. The thread guide needle body 31 is connected to a pull rod 33 made of a tough material that passes through the thread guide rod 2. The pull rod 33 is connected to the linkage assembly 4 for transmission. Driven by the linkage assembly 4, the thread guide needle body 31 retracts into the offset part 21, and its thread clamping grooves 32 also retract into the thread guide rod 2. The suture thread passing through the thread clamping grooves 32 is pressed and fixed to the thread guide needle body 31. The thread clamping grooves 32 at different positions cooperate with the linkage assembly 4 to achieve grouping and release of the suture thread.

[0034] Furthermore, the linkage component 4 includes a linkage disc 41 rotatably mounted inside the wire guide body 1, with an elastic element provided between the linkage disc 41 and the wire guide body 1. The linkage disc 41 is connected to a linkage handle 42 extending to the outside of the wire guide body 1. The linkage disc 41 meshes with a linkage gear 43 rotatably mounted inside the wire guide body 1, and the linkage gear 43 meshes with a linkage rack 44. The linkage rack 44 is provided with a locking component 5 for connecting the pull rod 33, and a limiting component 6 for adjusting the sliding range of the linkage rack 44 is provided between the linkage rack 44 and the wire guide body 1. When the operator holds the wire guide body 1 and presses the linkage handle 42, the linkage disc 41 rotates accordingly, driving the linkage gear 43 to mesh and rotate. The linkage rack 44 slides, driving the pull rod 33 to extend and retract.

[0035] In addition, the snap-fit ​​assembly 5 includes a pair of snap-fit ​​blocks 51 installed at the ends of the linkage rack 44. The snap-fit ​​blocks 51 are made of elastic material and can separate from each other under the action of elastic force. A retaining sleeve 52 is slidably sleeved on the outer side of the snap-fit ​​blocks 51 to keep the snap-fit ​​blocks 51 clamped and attached to each other. A snap-fit ​​groove 53 is left between the snap-fit ​​blocks 51. A snap-fit ​​ball 54 for clamping and fixing in the snap-fit ​​groove 53 is provided at the end of the pull rod 33. The retaining sleeve 52 is slidably connected to the linkage rack 44 through a retaining rod 55. An elastic element is provided between the linkage rack 44 and the retaining rod 55. The retaining rod 55 has a retaining protrusion 56 extending to the outer side of the wire guide body 1. When the snap-fit ​​blocks 51 in the snap-fit ​​assembly 5 are in a separated state, the retaining sleeve 52 moves forward under the action of the elastic element, so that the snap-fit ​​groove 53 snaps and fixes the snap-fit ​​ball 54, realizing the connection between the snap-fit ​​blocks 51 and the pull rod 33.

[0036] Meanwhile, the limiting component 6 includes a first limiting protrusion 61 disposed on the side of the linkage gear 43. A limiting handwheel 62, whose center is engaged with the linkage gear 43, is rotatably mounted on the outer side of the wire guide body 1. A second limiting protrusion 63 is disposed on the side of the limiting handwheel 62 opposite to the linkage gear 43. A limiting groove 64 is opened on the side of the wire guide body 1 for the first limiting protrusion 61 and the second limiting protrusion 63 to be inserted and slid. A plurality of corresponding limiting protrusions 65 and limiting grooves 66 are disposed between the inner side of the limiting handwheel 62 and the wire guide body 1. An elastic element is disposed inside the wire guide body 1 to press the limiting handwheel 62 against the wire guide body 1. The first limiting protrusion 61 and the second limiting protrusion 63 slide along the same trajectory. The limiting protrusions 65 and the limiting grooves 66 are interlocked to keep the limiting handwheel 62 fixed, and its second limiting protrusion 63 is fixed accordingly, thereby limiting the circumferential rotation range of the linkage gear 43 where the first limiting protrusion 61 is located.

[0037] As can be seen, the cable guide body 1 includes symmetrically assembled outer shells 11, which are connected by embedded splicing components. Sealing components are provided at the seams of the outer shells 11. The cable guide body 1 has a gripping part 12 with a through hole and an extension part 13 connected to the cable guide rod 2. The outer shells 11 are symmetrically assembled, and the embedded splicing components at their interfaces prevent any obvious protrusion on the outer side. The sealing components on the inner side further seal the seams.

[0038] Clearly, the embedded splicing assembly includes a splicing groove 14 located on the inner side of the edge of the outer casing 11, and a splicing buckle 15 located on the inner side of the edge of another outer casing 11, which is inserted into the splicing groove 14. Threaded parts are provided between the outer casings 11. The sealing assembly includes a sealing strip 16 located on the inner side of the edge of the outer casing 11, and a sealing film 17 covering the outer side of the cable guide body 1. The splicing groove 14 and the splicing buckle 15 correspond one-to-one, and the sealing strip 16 and the sealing film 17 completely cover the seams of the outer casings 11.

[0039] Example 2

[0040] like Figure 10 As shown, the structure, principle, and implementation steps of this embodiment are similar to those of Embodiment 1. The difference lies in that the suture clamping assembly 3 in this embodiment includes a suture guide block 34 that is telescopically installed inside the offset portion 21. A suture clamp 35 is rotatably connected to the end of the suture guide block 34. The suture clamp 35 has a separation protrusion 36 extending into the interior of the suture guide block 34. A separation push block 37 is slidably installed inside the suture guide block 34. A separation arc surface 38 is provided between the separation push block 37 and the separation protrusion 36 to guide the separation protrusion 36 to approach each other. An elastic element is provided between the separation push block 37 and the suture guide block 34. The suture clamp 35 replaces the suture needle body 31. As the suture guide block 34 extends and retracts, the suture clamp 35 can open and close to clamp the suture and other tissues. When the suture clamp 35 extends out of the offset portion 21, the internal elastic element pushes the suture clamp 35 to open.

[0041] In summary, the principle of this embodiment is as follows: a thread clamping component 3 is slidably installed inside the thread guide rod 2 connected to the thread guide body 1. As the linkage component 4 moves, the offset part 21 relative to the thread guide rod 2 extends and retracts, thereby clamping and fixing the suture thread at the end of the thread guide rod 2 for further threading operation.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0043] Although this article extensively uses the following components: main body 1, outer shell 11, gripping part 12, extension part 13, splicing groove 14, splicing buckle 15, sealing strip 16, sealing film 17, wire guide rod 2, offset part 21, disassembly hole 22, locking groove 23, locking block 24, locking handle 25, toggle part 26, rotating part 27, reset block 28, guide slope 29, wire clamping assembly 3, wire guide needle body 31, wire clamping groove 32, pull rod 33, wire guide claw 35, separation protrusion 36, separation push block 37, separation arc surface 38, etc. The terms used include: linkage component 4, linkage disc 41, linkage handle 42, linkage gear 43, linkage rack 44, locking component 5, locking block 51, constriction sleeve 52, locking groove 53, locking ball 54, constriction rod 55, constriction protrusion 56, limiting component 6, first limiting protrusion 61, limiting handwheel 62, second limiting protrusion 63, limiting slide groove 64, limiting protrusion 65, limiting groove 66, adjusting component 7, adjusting groove 71, adjusting tooth 72, guide arc surface 73, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A novel surgical suture guiding device, comprising two suture guiding bodies (1), each suture guiding body (1) being connected to a suture guiding rod (2), the ends of each suture guiding rod (2) having offset portions (21) bent relative to the suture guiding rod (2), the offset portions (21) of the two suture guiding bodies (1) having opposite bending directions, characterized in that, A clamping assembly (3) for clamping multiple sets of sutures is installed at the end of the offset part (21), and a linkage assembly (4) is provided inside the suture guide body (1); the suture guide rod (2) is rotatably installed at the end of the suture guide body (1), and an adjustment assembly (7) for limiting the circumferential angle of the offset part (21) relative to the central axis of the suture guide rod (2) is provided between the suture guide rod (2) and the suture guide body (1); the suture guide rod (2) is connected to the suture guide body (1) through a detachable assembly; the detachable assembly includes a suture guide assembly located at the end of the suture guide body (1) and for supplying... The wire guide rod (2) is inserted into a disassembly hole (22). The disassembly hole (22) contains locking grooves (23) distributed on both sides of the wire guide rod (2). A locking block (24) is slidably installed in the locking groove (23). A locking handle (25) is rotatably installed inside the wire guide body (1). The locking handle (25) has a toggle part (26) extending to the outside of the wire guide body (1) and a rotating part (27) rotatably installed inside the wire guide body (1). An elastic element is provided between the rotating part (27) and the wire guide body (1). The rotating part (27) has a reset block (28) that presses against the end of the locking block (24). There is a guide slope (29) between the reset block (28) and the locking block (24) to drive the locking block (24) closer to each other. The adjusting assembly (7) includes an adjusting groove (71) distributed circumferentially outward along the wire guide rod (2). The adjusting groove (71) is for the locking block (24) to be inserted, and there are intermeshing adjusting teeth (72) between the adjusting groove (71) and the locking block (24). A guide wire guide is provided on the side of the locking block (24) opposite to the disassembly port. The rod (2) is inserted into the guide arc surface (73) between the locking blocks (24); the wire clamping assembly (3) includes a wire guide needle body (31) telescopically installed inside the offset part (21). The side of the wire guide needle body (31) is provided with a plurality of wire clamping grooves (32) that are radially inclined relative to the wire guide needle body (31). The wire clamping grooves (32) are arranged along the axial direction of the wire guide needle body (31). The wire guide needle body (31) is connected to a pull rod (33) made of tough material that passes through the wire guide rod (2). The pull rod (33) is connected to the linkage assembly (4) for transmission.

2. The novel surgical suture device according to claim 1, characterized in that, The linkage component (4) includes a linkage disc (41) rotatably installed inside the wire guide body (1), and an elastic element is provided between the linkage disc (41) and the wire guide body (1). The linkage disc (41) is connected to a linkage handle (42) extending to the outside of the wire guide body (1). The linkage disc (41) meshes with a linkage gear (43) rotatably installed inside the wire guide body (1). The linkage gear (43) meshes with a linkage rack (44). A snap-fit ​​component (5) for connecting the pull rod (33) is provided on the linkage rack (44). A limiting component (6) for adjusting the sliding range of the linkage rack (44) is provided between the linkage rack (44) and the wire guide body (1).

3. The novel surgical suture device according to claim 2, characterized in that, The snap-fit ​​assembly (5) includes a pair of snap-fit ​​blocks (51) installed at the end of the linkage rack (44). The snap-fit ​​blocks (51) are made of elastic material and can separate from each other under the action of elastic force. A slidable sleeve (52) is provided on the outer side of the snap-fit ​​blocks (51) to keep the snap-fit ​​blocks (51) clamped and attached to each other. A snap-fit ​​groove (53) is left between the snap-fit ​​blocks (51). A snap-fit ​​ball (54) for clamping and fixing in the snap-fit ​​groove (53) is provided at the end of the pull rod (33). The slidable sleeve (52) is slidably connected to the linkage rack (44) through the slidable rod (55). An elastic element is provided between the linkage rack (44) and the slidable rod (55). The slidable rod (55) has a slidable protrusion (56) extending to the outside of the wire guide body (1).

4. The novel surgical suture device according to claim 3, characterized in that, The limiting component (6) includes a first limiting protrusion (61) provided on the side of the linkage gear (43). A limiting handwheel (62) with its center engaged with the linkage gear (43) is rotatably installed on the outside of the wire guide body (1). A second limiting protrusion (63) is provided on the side of the limiting handwheel (62) opposite to the linkage gear (43). A limiting groove (64) is opened on the side of the wire guide body (1) for the first limiting protrusion (61) and the second limiting protrusion (63) to be inserted and slid. A plurality of corresponding limiting protrusions (65) and limiting grooves (66) are provided between the inner side of the limiting handwheel (62) and the wire guide body (1). An elastic element is provided inside the wire guide body (1) to press the limiting handwheel (62) against the wire guide body (1).

5. The novel surgical suture device according to claim 1, characterized in that, The main body (1) of the wire guide includes a symmetrically assembled outer shell (11), the outer shells (11) are connected by an embedded splicing component, a sealing component is provided at the seam of the outer shell (11), the main body (1) of the wire guide has a gripping part (12) with a through hole and an extension part (13) connected to the wire guide rod (2).

6. The novel surgical suture device according to claim 5, characterized in that, The embedded splicing assembly includes a splicing groove (14) provided on the inner side of the edge of the outer shell (11), and a splicing buckle (15) inserted into the splicing groove (14) is provided on the inner side of the edge of another outer shell (11). Threaded parts are provided between the outer shells (11). The sealing assembly includes a sealing strip (16) provided on the inner side of the edge of the outer shell (11), and a sealing film (17) is covered on the outer side of the wire guide body (1).

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