Rapid tendon and rotator cuff grasping stitching instrument under arthroscope

Abstract

The invention discloses a rapid arthroscopic tendon and rotator cuff grasping stitching instrument, which comprises an opening and closing assembly, a needle threading assembly, a suture needle, a suture needle and a suture needle fixing assembly, and is characterized in that the opening and closing assembly is internally provided with a needle threading assembly; the needle threading assembly comprises a needle body, a needle support, a needle threading connecting rod, a telescopic rod, a telescopic rack, a needle threading gear, a rotary needle seat, a needle threading rack, a needle threading grip and a rack groove; the lower end of the needle body is fixedly connected with a rotary needle seat; the lower end of the rotary needle base is rotationally connected with the needle support; the lower end of the needle holder is rotationally connected with the connecting rod; the other end of the connecting rod is rotationally connected; the rear end of the telescopic rod is provided with a telescopic rack meshed with the lower end of the needle-threading gear; the upper end of the needle threading gear is meshed with the needle threading rack; the rear end of the needle threading rack is vertically connected with the needle threading grip; the rack groove is rotationally connected with the opening-closing assembly. Threads on the two sides penetrate out at a time for traction suture, and the tedious process of repeated needle threading operation due to the fact that threading is needed on the two sides for tendon suture is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of arthroscopic surgical instruments, and in particular relates to a quick arthroscopic tendon and rotator cuff grasping and suturing device. Background Art

[0002] With the advancement of medical technology, arthroscopic surgery has been widely used in the treatment of shoulder joint diseases. Shoulder joint diseases such as rotator cuff injury are common sports injuries and degenerative diseases in the elderly. Traditional open surgery for rotator cuff injury has disadvantages such as large trauma, long recovery time, and many postoperative complications. Arthroscopic surgery has many advantages such as small trauma, clear vision, and fast postoperative recovery. It has become the mainstream surgical method for treating shoulder joint diseases such as rotator cuff injury.

[0003] When performing rotator cuff repair and other operations under arthroscopy, the tendon needs to be grasped and sutured accurately. Since the anatomical structure of the rotator cuff tendon is relatively complex, and there are many important blood vessels, nerves and other structures around it, unstable grasping of the tendon during surgery may cause secondary tendon injury, affecting the surgical effect and the patient's prognosis.

[0004] In the existing technology, the process of threading the needle often requires the use of multiple tools, an assistant holding a microscope for monitoring, and the surgeon grasps the rotator cuff tissue with a tissue grasper in one hand and sutures with a suture hook in the other hand. The commonly used suture hook requires PDS line guidance, multiple line grasping, cumbersome operation, and the possibility of line derailment. At the same time, traditional suturing instruments can only insert one line at a time, and tendon suturing usually requires threading on both sides for traction suturing, which requires repeated needle threading operations. This not only increases the time cost of the operation, but also affects the quality of the operation to a certain extent.

[0005] Therefore, in view of the above-mentioned problems in the prior art, the present invention provides a quick arthroscopic tendon and rotator cuff grasping and suturing device. Summary of the invention

[0006] In order to solve the above technical problems, the present invention designs a quick arthroscopic tendon and rotator cuff grasping suture device, which pulls the patient's tendon by setting a grasping component to ensure the stability of the operation. At the same time, an opening and closing component is set at the bottom to control the distance between the two needle-threading plates at the bottom according to the needs of the operation, and cooperates with the threading component in the threading plate to pull the threads on both sides at one time for traction and suturing, thereby improving the efficiency of surgical suturing, enhancing the stability of grasping and suturing, and adapting to different surgical scenarios;

[0007] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: a quick arthroscopic tendon and rotator cuff grasping suture device, comprising: a support component, a grasping component, an opening and closing component, and a needle threading component;

[0008] The upper end of the support assembly is provided with a gripping assembly, and the lower end is provided with an opening and closing assembly; a needle threading assembly is provided inside the opening and closing assembly;

[0009] The needle threading assembly includes a needle body, a needle holder, a needle threading connecting rod, a telescopic rod, a telescopic rack, a needle threading gear, a rotating needle seat, a needle threading rack, a needle threading handle, and a rack groove; the lower end of the needle body is fixedly connected to the rotating needle seat; the rotating needle seat is slidably connected to the opening and closing assembly, and the lower end is rotatably connected to the needle holder; the lower end of the needle holder is rotatably connected to one end of the connecting rod; the other end of the connecting rod is rotatably connected to the telescopic rod; a telescopic rack is provided at the rear end of the telescopic rod to mesh with the lower end of the needle threading gear; the needle threading gear is rotatably connected to the opening and closing assembly, and the upper end is meshed with the needle threading rack; the needle threading rack is slidably connected to the rack groove, and the rear end is vertically connected to the needle threading handle; the rack groove is rotatably connected to the opening and closing assembly;

[0010] Furthermore, a wire hanging groove is provided at the upper end of the needle body;

[0011] Furthermore, a limiting shaft is provided on one side of the rotating needle seat;

[0012] Furthermore, the support assembly includes a support handle, a support sleeve, and a control rod; the rear end of the support sleeve is vertically connected to the handle; control rods are symmetrically arranged at both ends of the middle of the handle; the left side of the control rod is rotatably connected to the needle threading handle, and the right side is rotatably connected to the grabbing assembly;

[0013] Furthermore, the grabbing assembly includes a clamping plate, a rotating sleeve, a clamping gear, a needle threading groove, a clamping shaft, a clamping rack, and a clamping handle; an annular needle threading groove is arranged at the front end of the clamping plate, and a rotating sleeve is arranged at the rear end to be rotatably connected to the clamping shaft; both ends of the clamping shaft are fixedly connected to the two side walls of the top of the front end of the support sleeve; a clamping gear is arranged in the middle of the rotating sleeve; a clamping rack is arranged at the upper end of the clamping gear; the rear end of the clamping rack penetrates the support sleeve and is vertically connected to the clamping handle;

[0014] Furthermore, the opening and closing assembly includes a needle plate, an opening and closing shaft, an opening and closing worm wheel, an opening and closing worm, an opening and closing gear, an opening and closing rod, and an opening and closing knob; the opening and closing shafts are symmetrically arranged on both sides of the bottom of the front end of the support sleeve; the opening and closing shaft is fixedly connected to the opening and closing gear, and the lower end of the opening and closing shaft on one side is fixedly connected to the opening and closing worm wheel; the upper side of the opening and closing gear is fixedly connected to one end of the needle plate; an opening and closing worm is arranged on one side of the opening and closing worm wheel; an opening and closing rod is arranged at the rear end of the opening and closing worm to penetrate the support sleeve; an opening and closing knob is arranged at the rear end of the opening and closing rod;

[0015] Furthermore, a groove is provided in the middle of the front end of the needle-threading plate to provide a spiral groove for sliding connection with the limiting shaft;

[0016] Furthermore, the needle threading connecting rod vertically connects the needle support and the telescopic rack so that the needle threading connecting rod slides in the needle threading plate, and the active part of the needle threading connecting rod is set as a triangular cavity;

[0017] Furthermore, a cavity is provided at the upper end of the needle threading plate so that the needle threading rack can rotate inside;

[0018] Furthermore, torsion springs are provided at both ends of the control rod where they are rotatably connected to the needle threading handle and the clamping handle.

[0019] The beneficial effects of the present invention are:

[0020] The present invention uses the threading assembly in the threading board to thread the threads on both sides at one time for pulling and suturing, avoiding the tedious process of repeated needle threading operations due to the need for threading on both sides for tendon suturing, greatly shortening the time spent on needle threading during surgery, effectively improving the overall surgical efficiency, allowing the surgeon to more conveniently complete a series of operations such as grasping, threading and suturing, reducing the number of operating steps and the reliance on human cooperation, and further improving the surgical efficiency;

[0021] At the same time, the grasping component can accurately pull and grasp the patient's tendon, and can better maintain the grasping state, avoiding secondary tendon injury caused by unstable grasping during the operation, ensuring the stability of tendon handling during the operation, which is conducive to improving the surgical effect and the patient's prognosis;

[0022] Finally, the opening and closing component makes it possible to control the distance between the two needle plates below according to the actual needs of the operation. It can flexibly respond to different requirements for tendon suture position, spacing, etc. in different surgical scenarios, and better adapt to diverse surgical conditions such as different patients and different types of rotator cuff injuries, thereby improving the versatility and practicality of the suture device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0024] Figure 1 It is a schematic diagram of the overall structure of a quick arthroscopic tendon and rotator cuff grasping and suturing device;

[0025] Figure 2 The schematic diagram of the clamping plate structure of a quick arthroscopic tendon and rotator cuff grasping and suturing device;

[0026] Figure 3 An exploded view of a quick arthroscopic tendon and rotator cuff grasping stapler;

[0027] Figure 4 It is a cross-sectional view of the front end structure of a quick arthroscopic tendon and rotator cuff grasping suture device;

[0028] Figure 5 It is a cross-sectional view of the rear end structure of a quick arthroscopic tendon and rotator cuff grasping suture device;

[0029] Figure 6 It is a schematic diagram of the local structure of a quick arthroscopic tendon and rotator cuff grasping and suturing device A;

[0030] Figure 7 It is a cross-sectional view of the needle board of a quick arthroscopic tendon and rotator cuff grasping suture device;

[0031] Figure 8 The schematic diagram of the needle structure of a quick arthroscopic tendon and rotator cuff grasping suture device;

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1-support assembly, 101-support handle, 102-support sleeve, 103-control rod, 2-gripping assembly, 201-clamping plate, 202-rotating sleeve, 203-clamping gear, 204-needle slot, 205-clamping shaft, 206-clamping rack, 207-clamping handle, 3-opening and closing assembly, 301-needle plate, 302-opening and closing shaft, 303-opening and closing worm gear, 304-opening Worm, 305-opening and closing gear, 306-opening and closing rod, 307-opening and closing knob, 4-needle threading assembly, 401-needle body, 402-needle support, 403-needle threading connecting rod, 404-telescopic rod, 405-telescopic rack, 406-needle threading gear, 407-rotating needle seat, 408-needle threading rack, 409-needle threading handle, 410-rack groove, 411-limiting shaft, 412-hanging groove. DETAILED DESCRIPTION

[0034] The present invention discloses a quick arthroscopic tendon and rotator cuff grasping suture device, comprising: a support component 1, a grasping component 2, an opening and closing component 3, and a needle threading component 4; the grasping component 2 is arranged at the upper end of the support component 1, and the opening and closing component 3 is arranged at the lower end; the needle threading component 4 is arranged inside the opening and closing component 3; the needle threading component 4 comprises a needle body 401, a needle support 402, a needle threading connecting rod 403, a telescopic rod 404, a telescopic rack 405, a needle threading gear 406, a rotating needle seat 407, a needle threading rack 408, a needle threading grip 409, and a rack groove 410; the lower end of the needle body 401 is fixedly connected to the rotating needle seat 407; the rotating needle seat 407 is slidably connected to the The opening and closing component 3 is rotatably connected to the needle holder 402 at the lower end; the lower end of the needle holder 402 is rotatably connected to one end of the connecting rod; the other end of the connecting rod is rotatably connected to the telescopic rod 404; a telescopic rack 405 is provided at the rear end of the telescopic rod 404 to mesh with the lower end of the needle threading gear 406; the needle threading gear 406 is rotatably connected to the opening and closing component 3, and the upper end is meshed with the needle threading rack 408; the needle threading rack 408 is slidably connected to the rack groove 410, and the rear end is vertically connected to the needle threading handle 409; the rack groove 410 is rotatably connected to the opening and closing component 3; the threads on both sides are passed through at one time for traction suturing, avoiding the tedious process of repeated needle threading operations due to the need to thread on both sides for tendon suturing.

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1

[0037] like Figure 1 , 3 As shown in 4-8, the upper end of the support component 1 is provided with a gripping component 2, and the lower end is provided with an opening and closing component 3; the opening and closing component 3 is provided with a needle threading component 4 inside; the needle threading component 4 includes a needle body 401, a needle holder 402, a needle threading connecting rod 403, a telescopic rod 404, a telescopic rack 405, a needle threading gear 406, a rotating needle seat 407, a needle threading rack 408, a needle threading handle 409, and a rack groove 410; the lower end of the needle body 401 is fixedly connected to the rotating needle seat 407; the rotating needle seat 407 is slidably connected to the opening and closing component 3, and the lower end is rotatably connected to the needle holder 402; The lower end of the needle holder 402 is rotatably connected to one end of the connecting rod; the other end of the connecting rod is rotatably connected to the telescopic rod 404; the rear end of the telescopic rod 404 is provided with a telescopic rack 405 that meshes with the lower end of the needle threading gear 406; the needle threading gear 406 is rotatably connected to the opening and closing component 3, and the upper end is engaged with the needle threading rack 408; the needle threading rack 408 is slidably connected to the rack groove 410, and the rear end is vertically connected to the needle threading handle 409; the rack groove 410 is rotatably connected to the opening and closing component 3; the upper end of the needle body 401 is provided with a hanging groove 412; a limit shaft 411 is provided on one side of the rotating needle seat 407;

[0038] The support assembly 1 comprises a support handle 101, a support sleeve 102, and a control rod 103; the rear end of the support sleeve 102 is vertically connected to the handle; the control rods 103 are symmetrically arranged at both ends of the middle of the handle; the left side of the control rod 103 is rotatably connected to the needle threading handle 409, and the right side is rotatably connected to the grabbing assembly;

[0039] In this embodiment, the working principle of the needle threading assembly 4 is as follows: when the lower end of the needle threading handle 409 is pinched, the needle threading handle 409 rotates around the control rod 103, so that the upper end of the needle threading handle 409 pushes the needle threading rack 408 to slide in the rack groove 410, driving the needle threading gear 406 to rotate; when the needle threading gear 406 rotates, the telescopic rack 405 at the lower end drives the telescopic rod 404 to move, and the telescopic rod 404 pushes the needle holder 402 through the connecting rod, and the needle holder 402 drives the needle body 401 to rotate around the rotating needle seat 407 and move upward, and a thread hanging groove 412 is provided at the upper end of the needle body 401, and when the needle body 401 rotates to a suitable position, the thread can be hung on the needle;

[0040] In this embodiment, the needle threading rack 408 and the telescopic rack 405 are located on the same side and mesh with the telescopic rod 404;

[0041] During the needle threading process, the needle holder 402 is connected to the telescopic rack 405 through the needle threading connecting rod 403. The active part of the needle threading connecting rod 403 is set as a triangular cavity to ensure the stability of the needle holder 402 when sliding in the needle threading plate 301. The needle body 401 is connected to the opening and closing component 3 through the rotating needle seat 407. A limiting shaft 411 is set on one side of the rotating needle seat 407, which cooperates with the spiral groove in the middle of the front end of the needle threading plate 301, so that the movement of the needle body 401 in the needle threading plate 301 is more stable and accurate.

[0042] In this embodiment, through the cooperation between the limiting shaft 411 and the spiral groove at the front end of the needle threading plate 301, the movement trajectory of the needle body 401 in the needle threading plate 301 is more stable, which improves the accuracy of needle threading. At the same time, through rotational penetration, the needle body 401 can quickly penetrate the tendon tissue, and during the threading process, through the coordinated action of the needle support 402 and the needle threading connecting rod 403, the threading process is smoother, which greatly shortens the operation time and improves the operation efficiency.

[0043] Example 2

[0044] like Figure 1-5 As shown, the grabbing assembly includes a clamping plate 201, a rotating sleeve 202, a clamping gear 203, a needle threading groove 204, a clamping shaft 205, a clamping rack 206, and a clamping handle 207; the front end of the clamping plate 201 is provided with an annular needle threading groove 204, and the rear end is provided with a rotating sleeve 202 rotatably connected to the clamping shaft 205; both ends of the clamping shaft 205 are fixedly connected to the two side walls of the top front end of the support sleeve 102; the middle part of the rotating sleeve 202 is provided with a clamping gear 203; the upper end of the clamping gear 203 is provided with a clamping rack 206; the rear end of the clamping rack 206 penetrates the support sleeve 102 and is vertically connected to the clamping handle 207;

[0045] In this embodiment, the working principle of the grasping assembly is as follows: when the doctor holds and operates the clamping handle 207, the upper end of the clamping handle 207 moves backward, and the movement of the clamping handle 207 drives the clamping rack 206 to move synchronously. As the clamping rack 206 moves, the clamping gear 203 is driven to rotate. The rotation of the clamping gear 203 drives the rotating sleeve 202 to rotate around the clamping shaft 205, and then drives the clamping plate 201 connected thereto to rotate, thereby clamping the patient's tendon;

[0046] In this embodiment, the annular needle-threading groove 204 at the front end of the clamping plate 201 can be accurately aligned with the needle body 401, so that the needle body 401 can be accurately threaded out regardless of the angle to which the needle-threading plate 301 is rotated;

[0047] Furthermore, by providing the clamping handle 207 and the needle threading handle 409 on both sides of the control rod 103, the medical staff can quickly perform the needle threading operation after grasping the tendon, and can control the grasping and needle threading processes simultaneously with one hand, thereby improving the operation efficiency of the operation.

[0048] Example 3

[0049] like Figure 1 , 3 -6, the opening and closing assembly 3 includes a needle plate 301, an opening and closing shaft 302, an opening and closing worm wheel 303, an opening and closing worm 304, an opening and closing gear 305, an opening and closing rod 306, and an opening and closing knob 307; the opening and closing shafts 302 are symmetrically arranged on both sides of the bottom of the front end of the support sleeve 102; the opening and closing shaft 302 is fixedly connected to the opening and closing gear 305, and the lower end of the opening and closing shaft 302 on one side is fixedly connected to the opening and closing worm wheel 303; the upper side of the opening and closing gear 305 is fixedly connected to one end of the needle plate 301; an opening and closing worm 304 is arranged on one side of the opening and closing worm wheel 303; an opening and closing worm 304 is arranged at the rear end of the opening and closing worm 304 The rod 306 penetrates the support sleeve 102; the opening and closing knob 307 is arranged at the rear end of the opening and closing rod 306; a groove is arranged in the middle of the front end of the needle threading plate 301 to provide a spiral groove for sliding connection with the limit shaft 411; the needle threading connecting rod 403 vertically connects the needle support 402 and the telescopic rack 405 so that they slide in the needle threading plate 301, and the movable part of the needle threading connecting rod 403 is arranged as a triangular cavity; the upper end of the needle threading plate 301 is arranged as a large cavity so that the needle threading rack 408 rotates inside; torsion springs are arranged at both ends of the control rod 103 for rotating connection with the needle threading handle 409 and the clamping handle 207;

[0050] In this embodiment, by rotating the opening and closing knob 307, the opening and closing knob 307 drives the opening and closing rod 306 to rotate, and the opening and closing rod 306 drives the opening and closing worm 304 to rotate; thereby driving the opening and closing worm wheel 303 to rotate, and when the opening and closing worm wheel 303 rotates, it drives the opening and closing shaft 302 connected thereto to rotate, and the rotation of the opening and closing shaft 302 drives the opening and closing gear 305 to rotate, and the rotation of the opening and closing gear 305 causes one end of the needle plate 301 to rotate around the opening and closing shaft 302, and at the same time, the needle plate 301 on the other side is driven to rotate through gear meshing, thereby realizing the opening and closing of the needle plates 301 on both sides;

[0051] In this embodiment, the opening and closing degree of the needle plate 301 can be precisely controlled through the opening and closing component 3. During the operation, when facing tendons and rotator cuff tissues of different thicknesses and different degrees of damage, the doctor can accurately adjust the opening and closing angles and positions of the needle plate 301 according to the actual situation, so that the needle body 401 can accurately reach the predetermined needle insertion position, ensuring that the needle insertion operation is accurate and correct, improving the accuracy of suturing, and helping to improve the quality of the operation.

[0052] In summary, the present invention uses the threading assembly in the threading board to thread the threads on both sides at one time for pulling and suturing, avoiding the tedious process of repeated needle threading operations due to the need to thread the threads on both sides for tendon suturing, greatly shortening the time spent on needle threading during surgery, effectively improving the overall surgical efficiency, allowing the surgeon to more conveniently complete a series of operations such as grasping, threading and suturing, reducing the operating steps and the reliance on human cooperation, and further improving the surgical efficiency;

[0053] At the same time, the grasping component can accurately pull and grasp the patient's tendon, and can better maintain the grasping state, avoiding secondary tendon injury caused by unstable grasping during the operation, ensuring the stability of tendon handling during the operation, which is conducive to improving the surgical effect and the patient's prognosis;

[0054] Finally, the opening and closing component 3 makes it possible to control the distance between the two needle plates 301 below according to the actual needs of the operation, and can flexibly respond to different requirements for tendon suture position, spacing, etc. in different surgical scenarios, and better adapt to diverse surgical conditions such as different patients and different types of rotator cuff injuries, thereby improving the versatility and practicality of the suture device.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A quick arthroscopic tendon and rotator cuff grasping suture device, characterized in that: Including: a supporting component, a grasping component, an opening and closing component, and a needle threading component; The upper end of the support assembly is provided with a gripping assembly, and the lower end is provided with an opening and closing assembly; a needle threading assembly is provided inside the opening and closing assembly; The needle threading assembly includes a needle body, a needle support, a needle threading connecting rod, a telescopic rod, a telescopic rack, a needle threading gear, a rotating needle seat, a needle threading rack, a needle threading handle, and a rack groove; the lower end of the needle body is fixedly connected to the rotating needle seat; the rotating needle seat is slidably connected to the opening and closing assembly, and the lower end is rotatably connected to the needle support; the lower end of the needle support is rotatably connected to one end of the connecting rod; the other end of the connecting rod is rotatably connected to the telescopic rod; a telescopic rack is provided at the rear end of the telescopic rod to mesh with the lower end of the needle threading gear; the needle threading gear is rotatably connected to the opening and closing assembly, and the upper end is meshed with the needle threading rack; the needle threading rack is slidably connected to the rack groove, and the rear end is vertically connected to the needle threading handle; the rack groove is rotatably connected to the opening and closing assembly.

2. A quick arthroscopic tendon and rotator cuff grasping suture device according to claim 1, characterized in that: A wire hanging groove is arranged on the upper end of the needle body.

3. A quick arthroscopic tendon and rotator cuff grasping suture device according to claim 1, characterized in that: A limiting shaft is arranged on one side of the rotating needle seat.

4. A quick arthroscopic tendon and rotator cuff grasping suture device according to claim 1, characterized in that: The support assembly includes a support handle, a support sleeve, and a control rod; the rear end of the support sleeve is vertically connected to the handle; control rods are symmetrically arranged at both ends of the middle part of the handle; the left side of the control rod is rotated to connect to the needle threading handle, and the right side is rotated to connect to the grabbing assembly.

5. A quick arthroscopic tendon and rotator cuff grasping and suturing device according to claim 1, characterized in that: The grabbing assembly includes a clamping plate, a rotating sleeve, a clamping gear, a needle threading groove, a clamping shaft, a clamping rack, and a clamping handle; an annular needle threading groove is arranged at the front end of the clamping plate, and a rotating sleeve is arranged at the rear end to be rotatably connected to the clamping shaft; both ends of the clamping shaft are fixedly connected to the two side walls of the top front end of the supporting sleeve; a clamping gear is arranged in the middle of the rotating sleeve; a clamping rack is arranged at the upper end of the clamping gear; the rear end of the clamping rack penetrates the supporting sleeve and is vertically connected to the clamping handle.

6. A quick arthroscopic tendon and rotator cuff grasping suture device according to claim 1, characterized in that: The opening and closing assembly includes a needle threading plate, an opening and closing shaft, an opening and closing worm wheel, an opening and closing worm, an opening and closing gear, an opening and closing rod, and an opening and closing knob; an opening and closing shaft is symmetrically arranged on both sides of the bottom front end of the support sleeve; the opening and closing shaft is fixedly connected to the opening and closing gear, and the lower end of the opening and closing shaft on one side is fixedly connected to the opening and closing worm wheel; the upper side of the opening and closing gear is fixedly connected to one end of the needle threading plate; an opening and closing worm is arranged on one side of the opening and closing worm wheel; an opening and closing rod is arranged at the rear end of the opening and closing worm to penetrate the support sleeve; an opening and closing knob is arranged at the rear end of the opening and closing rod.

7. A quick arthroscopic tendon and rotator cuff grasping and suturing device according to claim 6, characterized in that: A groove is provided in the middle of the front end of the needle-threading plate to arrange a spiral groove for sliding connection with the limiting shaft.

8. A quick arthroscopic tendon and rotator cuff grasping and suturing device according to claim 6, characterized in that: The needle threading connecting rod vertically connects the needle support and the telescopic rack so that the needle support and the telescopic rack can slide in the needle threading plate, and the active part of the needle threading connecting rod is arranged as a triangular cavity.

9. A quick arthroscopic tendon and rotator cuff grasping and suturing device according to claim 6, characterized in that: A cavity is arranged on the upper end of the needle threading plate so that the needle threading rack can rotate inside.

10. A quick arthroscopic tendon and rotator cuff grasping and suturing device according to claim 4, characterized in that: Torsion springs are arranged at the positions where the two ends of the control rod are rotatably connected to the needle threading handle and the clamping handle.

Images