An inside-out meniscus suture device

Abstract

The present invention relates to the technical field of medical devices, and particularly relates to an inside-out meniscus suture device, which includes a limiting steel plate, a needle, a suture, a handle and an insertion sleeve. A guiding groove is provided on one side of the limiting steel plate, and an intercepting net is fixedly arranged on the port of the limiting steel plate. An insertion sleeve is provided on the right side of the handle, a needle is arranged inside the insertion sleeve, a suture is arranged on the needle, and a metal elastic sheet is arranged on the outer wall of the tip of each needle. By adjusting the cooperation among the lead screw, the sliding plate and the stabilizing box, the distance between the two insertion sleeves is further adjusted to meet the needs of different meniscus wounds, and the synchronous puncture of the two insertion sleeves is also realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an inside-out meniscus suture device. Background Art

[0002] The meniscus is a medial and lateral semi-circular bone on the tibial articular surface. Its edge part is thicker and is tightly connected to the joint capsule. The central part is thin and in a free state. Except for the edge part that can repair itself after injury, the meniscus cannot repair itself after rupture. After meniscectomy, the synovium can regenerate a thin and narrow fibrocartilaginous meniscus. The normal meniscus has the function of increasing the depression of the tibial condyle and padding the medial and lateral condyles of the femur, so as to increase the stability of the joint and play a role in buffering shock. Meniscus injuries are relatively common in clinical practice. For injuries in the avascular area, meniscectomy or shaping is often performed. For injuries in the vascular area, meniscus suture is preferably performed. The meniscus suture methods include suture from outside to inside, suture from inside to outside, and all-inside suture.

[0003] During the use of the existing meniscus suture device, generally only one needle can be punctured at a time. When puncturing the needle again, the doctor needs to adjust the position of the puncture needle, which is very inconvenient to operate and has low puncture efficiency. When the suture cannula is inserted into the joint and the needle and suture are passed through the meniscus to the steel plate (safety incision), at this time, the suture cannula needs to be removed. Since the suture cannula is generally relatively long, the suture is easily pulled out during the removal process, resulting in the inability of the subsequent sutures to tie knots with each other, affecting the suture efficiency.

[0004] Therefore, the present invention provides an inside-out meniscus suture device to solve the above problems. Summary of the Invention

[0005] In view of the above situation, to overcome the deficiencies of the prior art, the present invention provides an inside-out meniscus suture device, which effectively solves the problem that the suture is easily pulled out during the removal of the existing suture cannula, affecting the ability of the sutures to tie knots with each other.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] An inside-out meniscus suture device includes a limit steel plate, a needle, a suture, a handle, and an insertion cannula. A guide groove is provided on one side of the limit steel plate, and an interception net is fixedly provided at the port of the limit steel plate. An insertion cannula is provided on the right side of the handle. The insertion cannula is internally provided with a needle, and a suture is provided on the needle. A metal elastic sheet is provided on the outer wall of the tip of each needle.

[0008] Preferably, two inlet sleeves are provided on the right side of the handle. A limiting hole is respectively opened on each inlet sleeve. A needle is respectively arranged inside each inlet sleeve. A suture located inside the limiting hole is fixedly connected between the left ends of the two needles.

[0009] Preferably, a hidden groove is opened on the outer wall of the tip of the needle, and a metal elastic sheet is installed inside the hidden groove.

[0010] Preferably, a fixed shaft is fixedly connected to the right end of the handle. Adjusting lead screws are respectively rotatably connected to both sides of the fixed shaft. A positioning disk is fixedly connected to the right end of the fixed shaft. Two sliding holes are opened on the positioning disk. A sliding plate is respectively slidably connected inside each sliding hole. Each sliding plate is respectively threadedly connected to the corresponding adjusting lead screw. A stabilizing box is respectively installed at the right ends of the two sliding plates.

[0011] Preferably, a manual ring is rotatably connected between the handle and the positioning disk. A driving gear ring is fixedly connected inside the manual ring. A bevel gear meshing with the driving gear ring is respectively fixedly connected to the top end of each adjusting lead screw. A friction ring is fixedly connected to the outer end of the manual ring.

[0012] Preferably, a sliding ring is respectively sleeved on each inlet sleeve. A push block located inside the limiting hole is respectively fixedly connected to the inside of each sliding ring. A push rod is respectively fixedly connected to the right end of each push block. An annular groove is respectively opened at the left end of each sliding ring. A sliding rod is respectively slidably connected inside each annular groove. A round block is respectively fixedly connected to the left end of each sliding rod. A positioning block is respectively fixedly connected to the left end of each round block. A fixing rod is respectively fixedly connected to each positioning block. A positioning sleeve is sleeved between the two fixing rods.

[0013] Preferably, a push shaft is slidably connected inside the handle. The positioning sleeve is connected to the right end of the push shaft. A rectangular hole is opened on the handle. A moving block located inside the rectangular hole is fixedly connected to the left end of the push shaft. A return spring is fixedly connected to the right end of the moving block.

[0014] Preferably, a screw is respectively threadedly connected to each stabilizing box.

[0015] Preferably, patterns and a plugging block are provided on the handle.

[0016] Preferably, a guiding block is respectively fixedly connected to the left end of each needle.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By adjusting the coordinated use among the lead screw, the sliding plate, and the stabilizing box, the distance between the two inlet sleeves is adjusted to meet the requirements of different meniscus wounds, and the synchronous puncture of the two inlet sleeves is also achieved.

[0019] 2. Through the coordinated use among the inlet sleeve, the needle, the retaining rod, the intercepting net, and the guiding groove, the suture will not be pulled out, and the suture has the advantages of small trauma and quick recovery, improving the suture efficiency and reducing the pain of the patient.

[0020] 3. Manually control the moving speed and distance of the needle, thereby controlling the puncture force and angle, and two sutures can also be punctured simultaneously, reducing the pain of the patient to a certain extent and improving the suture efficiency of the meniscus. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of the present invention Figure 1 ;

[0022] Figure 2 is a three-dimensional schematic diagram of the present invention Figure 2 ;

[0023] Figure 3 is a three-dimensional schematic diagram of the present invention Figure 3 ;

[0024] Figure 4 is a schematic diagram of the structure of the inlet sleeve of the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the sliding ring of the present invention;

[0026] Figure 6 is a three-dimensional schematic diagram of the cross-section of the needle of the present invention;

[0027] Figure 7 is a three-dimensional schematic diagram of the cross-section of the handle of the present invention;

[0028] Figure 8 is a schematic diagram of the cooperation between the driving gear ring and the bevel gear of the present invention;

[0029] Figure 9 is a schematic diagram of the structure of the needle of the present invention;

[0030] Figure 10 is a schematic diagram of the structure of the stabilizing box of the present invention;

[0031] Figure 11 is of the present invention Figure 5 The enlarged schematic diagram at A in.

[0032] Markings in the figure: 2. Limiting steel plate; 3. Guide groove; 4. Intercepting net; 5. Handle; 6. Inlet sleeve; 7. Limiting hole; 8. Needle; 9. Fixed shaft; 10. Adjusting screw; 11. Positioning plate; 12. Sliding hole; 13. Sliding plate; 14. Stabilizing box; 15. Manual ring; 16. Driving gear ring; 17. Bevel gear; 18. Friction ring; 19. Sliding ring; 20. Push block; 21. Push rod; 22. Annular groove; 23. Sliding rod; 24. Round block; 25. Positioning block; 26. Fixed rod; 27. Positioning sleeve; 28. Push shaft; 29. ​​Rectangular hole; 30. Moving block; 31. Reset spring; 32. Screw; 33. Texture; 34. Blocking block; 35. Guide block; 36. Suture; 37. Hidden groove; 38. Metal shrapnel. DETAILED DESCRIPTION

[0033] The following will refer to Figures 1 to 11 Various embodiments of the present invention are described in detail.

[0034] A meniscus suturing device from inside to outside, such as Figures 1 - 5 As shown, it includes a limiting steel plate 2, a needle 8, a suture thread 36, a handle 5 and an inlet sleeve 6. The limiting steel plate 2 is an arc-shaped structure. A guide groove 3 is provided on one side of the limiting steel plate 2. The inner rear end of the guide groove 3 is a curved oblique arc surface. An interception net 4 is fixedly provided on the end of the guide groove 3 of the limiting steel plate 2. The interception net 4 is arranged in an arc shape. The interception net 4 selects an existing suitable mesh structure. Two inlet sleeves 6 are arranged on the right side of the handle 5. A limiting hole 7 is respectively opened on each of the inlet sleeves 6. The limiting hole 7 is arranged in the left and right directions and is connected with the inside of the inlet sleeve 6. A needle 8 is detachably installed inside each of the inlet sleeves 6. The left ends of the two needles 8 are fixedly connected There is a suture 36 located inside the limiting hole 7, and the needle 8 and the suture 36 are selected from existing suitable devices. A hidden groove 37 is provided on the side wall of the tip of each needle 8, and the hidden groove 37 is arranged close to the tip of the needle 8. A metal spring 38 is fixedly installed on the right side of each hidden groove 37. The metal spring 38 is made of elastic metal, such as elastic titanium alloy. Here, a plurality of hidden grooves 37 and metal springs 38 can be arranged as needed. In actual use, the side wall of the tip of the needle 8 may not have a hidden groove 37, and the metal spring 38 can be directly fixed to the side wall of the tip of the needle 8. (It should be noted that all components on the device are made of existing suitable medical non-toxic materials).

[0035] like Figure 8 , Figure 10As shown, a fixed shaft 9 is fixedly connected to the right end of the handle 5. A connecting disc is fixedly connected to the right end of the handle 5, and the fixed shaft 9 is fixedly connected to the center of the right end of the connecting disc. Symmetrically arranged adjusting lead screws 10 are rotatably connected to both side surfaces of the fixed shaft 9, and the threads of the two adjusting lead screws 10 are arranged in opposite directions. A positioning disc 11 is fixedly connected to the right end of the fixed shaft 9, and there is a certain distance between the positioning disc 11 and the connecting disc. Two sliding holes 12 are formed in the positioning disc 11, and a sliding plate 13 is slidably connected to the inside of each sliding hole 12. Each sliding plate 13 is threadedly connected to the corresponding adjusting lead screw 10. Stable boxes 14 are fixedly installed at the right ends of the two sliding plates 13, and the stable boxes 14 are arranged on the right side of the positioning disc 11.

[0036] As Figure 8 shown, a manual ring 15 is rotatably connected inside the space between the handle 5 and the positioning disc 11. The manual ring 15 is rotatably connected to the positioning disc 11. A driving gear ring 16 is fixedly connected to the inside of the manual ring 15. A bevel gear 17 meshing with the driving gear ring 16 is coaxially and fixedly connected to the top end of each adjusting lead screw 10. A friction ring 18 is fixedly connected to the outer end of the manual ring 15;

[0037] The doctor first installs the suture 36 in the two limiting holes 7, then places the needle 8 into the two inlet sleeves 6. Press the left end of the metal elastic sheet 38 to move it into the corresponding hidden groove 37, so that the needle 8 is completely inserted into the inlet sleeve 6. Since the metal elastic sheet 38 has elasticity, one end of the metal elastic sheet 38 always abuts against the inner wall of the inlet sleeve 6 at this time. Rotate the friction ring 18, and the driving gear ring 16 meshes with the two bevel gears 17 and the adjusting lead screws 10 to rotate. The two sliding plates 13 drive the corresponding two inlet sleeves 6 to approach or move away from each other through the stable boxes 14 until they stop moving at a suitable position;

[0038] The doctor uses a surgical tool to make two surgical incisions at the knee position of the patient, places the limiting steel plate 2 through one of the surgical incisions to the edge side of the meniscus, and sets the interception net 4 close to the meniscus. The doctor inserts the two inlet sleeves 6 into the other surgical incision at the same time, observes the cracking condition of the meniscus through the micro camera and the display, and rotates the friction ring 18 according to the condition of the meniscus. The two bevel gears 17 drive their respective adjusting lead screws 10 to rotate. The two sliding plates 13 drive the two inlet sleeves 6 to approach each other through the corresponding stable boxes 14, thereby adjusting the distance between the two inlet sleeves 6, so that the crack on the meniscus is located between the two inlet sleeves 6. The right end faces of the two inlet sleeves 6 are in contact with the inner side surface of the meniscus. Then, push the two needles 8 to slide to the right. The tip of the needle 8 first inserts into the meniscus. Due to the extrusion of the meniscus, the metal elastic sheet 38 is always hidden in the hidden groove 37;

[0039] When the two needles 8 pass through the interception net 4 and come into contact with the curved inclined arc surface of the guiding groove 3, the left end of the metal elastic sheet 38 will pop out from the inside of the hidden groove 37. Then, the two needles 8 will slide along the curved inclined arc surface towards the front end of the limit steel plate 2 and get closer. When the needles 8 move the suture 36 to an appropriate extent, the two metal elastic sheets 38 are completely inserted into the guiding groove 3, stopping the movement of the needles 8, and the doctor completes the puncture work of the two sutures 36;

[0040] When the two inlet cannulas 6 are slowly pulled outwards, due to the slight frictional force between the suture 36 and the inner wall of the inlet cannula 6, the inlet cannula 6 will drive the suture 36 to move outwards synchronously. The suture 36 will drive the two needles 8 to move synchronously. Since the metal elastic sheets 38 are in the unfolded state and the two metal elastic sheets 38 have hooked on the interception net 4, the suture 36 will no longer move, and the suture 36 will completely come out of the two inlet cannulas 6. Then, the doctor uses corresponding tools to remove the two needles 8, tie the two sutures 36 together, and suture the crack of the meniscus. After the suture is completed, the limit steel plate 2 can be taken out; By suturing the meniscus, it can help the patient recover its normal function, and the suture has the advantages of small trauma and quick recovery. Since the metal elastic sheets 38 are hooked on the interception net 4, the suture 36 will not be taken out with the withdrawal of the inlet cannula 6, improving the suture efficiency. The present invention can also adjust the distance between the two inlet cannulas 6 according to the situation of the meniscus, reduce the number of needle insertions, and reduce the pain of the patient.

[0041] As Figure 4 、 Figure 5 、 Figure 11 shown, each of the inlet cannulas 6 is sleeved with a sliding ring 19. A cross block is fixedly connected to the inside of each sliding ring 19. The cross block is slidably installed in the limit hole 7. The other end of the cross block is fixedly connected to a push block 20 located inside the inlet cannula 6. A push rod 21 is fixedly connected to the right end of each push block 20. The push rod 21 is arranged on the left side of the needle 8. An annular groove 22 is respectively formed on the left end surface of each sliding ring 19. A sliding rod 23 is slidably connected to the inside of each annular groove 22. A round block 24 is fixedly connected to the left end of each sliding rod 23. A positioning block 25 is fixedly connected to the left end of each round block 24. A transverse fixing rod 26 is fixedly connected to each positioning block 25. A positioning sleeve 27 is sleeved between the two fixing rods 26. The fixing rod 26 is slidably connected to the inside of the positioning sleeve 27.

[0042] As Figure 2 、 Figure 7As shown, an installation cavity is provided inside the handle 5. The push shaft 28 is slidably arranged inside the installation cavity. The push shaft 28 passes through the fixed shaft 9 and the positioning disc 11 and is fixedly connected to the positioning sleeve 27. A rectangular hole 29 communicating with the installation cavity is provided on the handle 5. A moving block 30 located inside the rectangular hole 29 is fixedly connected to the left end of the push shaft 28. A reset spring 31 is fixedly connected to the right end of the moving block 30. The reset spring 31 is sleeved on the push shaft 28, and the other end of the reset spring 31 is fixedly connected to the right end of the handle 5;

[0043] The doctor rotates the two inlet sleeves 6, and the sliding rod 23 slides along the annular groove 22, so that the two limiting holes 7 are arranged upward, driving the metal elastic sheet 38 to move into the hidden groove 37. The suture 36 is installed inside the limiting holes 7. The two needles 8 are respectively placed into the corresponding inlet sleeves 6 to complete the installation of the needles 8. Then the two inlet sleeves 6 are restored to the initial state, and the two limiting holes 7 correspond to each other; when it is necessary to adjust the distance between the two needles 8, the friction ring 18 is rotated to drive the gear ring 16 to engage the two bevel gears 17 and the adjusting screw rod 10 to rotate. The two sliding plates 13 drive the corresponding two inlet sleeves 6 to approach or move away from each other through the stable box 14. At the same time, the fixed rod 26 slides on the positioning sleeve 27 until the two inlet sleeves 6 are adjusted to the appropriate position and then stop moving. During the sliding process of the fixed rod 26 along the positioning sleeve 27, it plays a stabilizing role for the two inlet sleeves 6;

[0044] Then the doctor pushes the moving block 30 and the push shaft 28 to move to the right, and the reset spring 31 is compressed. At this time, the positioning sleeve 27, the fixed rod 26, the positioning block 25, the round block 24, the sliding rod 23, and the sliding ring 19 slide to the right synchronously. The two push blocks 20 push the tail ends of the needles 8 through the push rods 21. At this time, the tips of the two needles 8 first penetrate into the meniscus, thereby completing the puncture work of the meniscus. In this way, the moving speed and distance of the needles 8 can be manually controlled, and thus the puncture force and angle can be controlled. Two sutures 36 can also be punctured simultaneously, reducing the pain of the patient and improving the suture efficiency of the meniscus.

[0045] As Figure 3 shown, a screw rod 32 is respectively threadedly connected to each stable box 14. A fastening rod is fixedly connected to the left end of each inlet sleeve 6. The fastening rod is inserted into the corresponding stable box 14. The screw rod 32 is rotated to fasten the fastening rod, improving the stability of the inlet sleeve 6 and also facilitating the disassembly of the inlet sleeve 6.

[0046] As Figure 2 shown, the handle 5 is provided with a texture 33 to increase the friction with the hand. A plug block 34 is threadedly installed at the left end of the handle 5. When it is necessary to replace the components inside the installation cavity, the plug block 34 is disassembled and then the components can be replaced.

[0047] As shown Figure 9 In the figure, a guide block 35 is fixedly connected to the left end of each needle 8. The guide block 35 is installed inside the corresponding limit hole 7, which can guide the needle 8.

[0048] The working principle of the present invention is as follows:

[0049] The doctor first installs the suture 36 inside the two limit holes 7, then places the needles 8 inside the two inlet sleeves 6, presses the left end of the metal elastic sheet 38 to move it into the corresponding hidden groove 37, so that the needles 8 are completely inserted into the inlet sleeves 6. Since the metal elastic sheet 38 has elasticity, one end of the metal elastic sheet 38 always abuts against the inner wall of the inlet sleeve 6 at this time. Rotate the friction ring 18, and the drive gear ring 16 meshes with the two bevel gears 17 and the adjusting screw rod 10 to rotate. The two sliding plates 13 drive the corresponding two inlet sleeves 6 to approach or move away from each other through the stable box 14 until they stop moving at an appropriate position. The doctor uses surgical tools to make two surgical incisions at the knee position of the patient, places the limit steel plate 2 through one of the surgical incisions to the edge side of the meniscus, and sets the interception net 4 close to the meniscus;

[0050] The doctor inserts the two inlet sleeves 6 into the other surgical incision at the same time, observes the cracking condition of the meniscus through the micro camera and the display, and rotates the friction ring 18 according to the condition of the meniscus. The two bevel gears 17 drive their respective adjusting screw rods 10 to rotate. The two sliding plates 13 drive the two inlet sleeves 6 to approach each other through the corresponding stable boxes 14, thereby adjusting the distance between the two inlet sleeves 6 so that the crack on the meniscus is located between the two inlet sleeves 6;

[0051] The doctor makes the right end faces of the two inlet sleeves 6 contact the inner side of the meniscus, pushes the moving block 30 and the push shaft 28 to move to the right, and the return spring 31 is compressed. At this time, the positioning sleeve 27, the fixing rod 26, the positioning block 25, the round block 24, the sliding rod 23, and the sliding ring 19 slide to the right synchronously. The two push blocks 20 push the tail end of the needle 8 to move through the push rod 21, and then push the two needles 8 to slide to the right. The tip of the needle 8 first inserts into the meniscus. Due to the extrusion of the meniscus, the metal elastic sheet 38 is always hidden inside the hidden groove 37;

[0052] When the two needles 8 pass through the interception net 4 and contact the curved inclined arc surface of the guide groove 3, the left end of the metal elastic sheet 38 will pop out from the hidden groove 37. Then the two needles 8 will slide and approach the front end of the limit steel plate 2 along the curved inclined arc surface. When the needles 8 move the suture 36 to an appropriate degree, the two metal elastic sheets 38 are completely inserted into the guide groove 3, and the movement of the needles 8 is stopped. The doctor completes the puncture work of the two sutures 36;

[0053] When the two inlet cannulas 6 are slowly pulled outwards, due to the slight frictional force between the suture 36 and the inner wall of the inlet cannula 6, the inlet cannula 6 will move outwards synchronously with the suture 36, and the suture 36 will move the two needles 8 synchronously. Since the metal shrapnel 38 is in the deployed state, the two metal shrapnels 38 will hook on the interception net 4, and the suture 36 will no longer move. The suture 36 will completely come out of the two inlet cannulas 6. Then the doctor uses the corresponding tool to remove the two needles 8, tie the two sutures 36 together, and suture the crack of the meniscus. After the suture is completed, the limiting steel plate 2 can be taken out, and the moving block 30 is loosened, and the return spring 31 drives the corresponding components to return to their original positions; By suturing the meniscus, it can help the patient restore its normal function, and the suture has the advantages of small trauma and quick recovery. Since the metal shrapnel 38 hooks on the interception net 4, the suture 36 will not be pulled out, improving the suture efficiency, and the distance between the two inlet cannulas 6 can also be adjusted according to the condition of the meniscus, reducing the pain of the patient.

[0054] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0055] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A meniscus suturing device from inside to outside, comprising a limit steel plate (2), a needle (8), a suture thread (36), a handle (5) and an inlet sleeve (6), characterized in that: A guide groove (3) is provided on one side of the limiting steel plate (2), an interception net (4) is fixedly provided on the end of the limiting steel plate (2), two inlet sleeves (6) are provided on the right side of the handle (5), each of the inlet sleeves (6) is provided with a limiting hole (7), each of the inlet sleeves (6) is provided with a needle (8) inside, each of the needles (8) is provided with a suture thread (36), and a metal spring (38) is provided on the outer wall of the tip of each needle (8); Each of the inlet sleeves (6) is sleeved with a sliding ring (19), each of the sliding rings (19) is fixedly connected to a push block (20) located inside the limiting hole (7), the right end of each of the push blocks (20) is fixedly connected to a push rod (21), the left end of each of the sliding rings (19) is provided with an annular groove (22), the inside of each of the annular grooves (22) is slidably connected to a sliding rod (23), the left end of each of the sliding rods (23) is fixedly connected to a round block (24), the left end of each of the round blocks (24) is fixedly connected to a positioning block (25), each of the positioning blocks (25) is fixedly connected to a fixing rod (26), and a positioning sleeve (27) is sleeved between the two fixing rods (26); A push shaft (28) is slidably connected inside the handle (5), the positioning sleeve (27) is connected to the right end of the push shaft (28), a rectangular hole (29) is provided on the handle (5), a moving block (30) located inside the rectangular hole (29) is fixedly connected to the left end of the push shaft (28), and a return spring (31) is fixedly connected to the right end of the moving block (30).

2. The inside-out meniscus suturing device according to claim 1, characterized in that: A suture thread (36) located inside the limiting hole (7) is fixedly connected between the left ends of the two needles (8).

3. The inside-out meniscus suturing device according to claim 1, characterized in that: A hidden groove (37) is provided on the outer wall of the tip of the needle (8), and a metal spring (38) is installed inside the hidden groove (37).

4. The inside-out meniscus suturing device according to claim 1, characterized in that: The right end of the handle (5) is fixedly connected to a fixed shaft (9), and the two sides of the fixed shaft (9) are rotatably connected to adjusting screw rods (10), and the right end of the fixed shaft (9) is fixedly connected to a positioning plate (11), and the positioning plate (11) is provided with two sliding holes (12), and each sliding hole (12) is slidably connected to a sliding plate (13), and each sliding plate (13) is threadedly connected to the corresponding adjusting screw rod (10), and the right ends of the two sliding plates (13) are respectively installed with stabilizing boxes (14).

5. The inside-out meniscus suturing device according to claim 4, characterized in that: A manual ring (15) is rotatably connected between the handle (5) and the positioning plate (11), a driving gear ring (16) is fixedly connected inside the manual ring (15), a bevel gear (17) meshing with the driving gear ring (16) is fixedly connected to the top end of each adjusting screw rod (10), and a friction ring (18) is fixedly connected to the outer end of the manual ring (15).

6. The inside-out meniscus suturing device according to claim 4, characterized in that: A screw rod (32) is threadedly connected to each of the stabilizing boxes (14).

7. The inside-out meniscus suturing device according to claim 1, characterized in that: The handle (5) is provided with patterns (33) and a blocking block (34).

8. The inside-out meniscus suturing device according to claim 1, characterized in that: The left end of each needle (8) is fixedly connected to a guide block (35).

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