Bendable full-suture meniscus suture device

Abstract

The utility model discloses a bendable full-suture meniscus suturing device, and aims to provide the bendable full-suture meniscus suturing device which is provided with a part capable of directly knowing the rotation condition of a cam. The handle main body is provided with a cavity and a control hole, and is provided with a hollow pipe, a control block, a manual handle and a cam, a suture line is arranged on a line belt of the control block, a needle head is movably connected with a pushing needle, the cam comprises a large-diameter disc and a small-diameter disc, the large-diameter disc is sleeved with a first rack, the upper end of the manual handle penetrates through the control hole to be arranged outside the handle main body, and the small-diameter disc is sleeved with a second rack. The gear at the lower end is meshed with the first rack, and the large-diameter disc and the gear are detachably connected with the handle body. The beneficial effects of the utility model are that: the purpose of installing a part capable of directly knowing the rotation condition of the cam can be achieved; the purpose of installing a structure for limiting the pushing structure can be achieved; the pushing work of the first wire belt or the second wire belt can be manually controlled conveniently; and the two ends of the key can be stably limited inside and outside the control cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of meniscus suturing, in particular to a bendable full-suture meniscus suturing device. Background Art

[0002] The meniscus is one of the important structures of the knee joint. It is two semilunar fibrocartilages located between the femoral condyle and the tibial plateau. Its cross section is triangular, thick outside and thin inside, slightly concave on the upper side to match the femoral condyle, and flat on the lower side to connect with the tibial plateau. This structure just makes the femoral condyle form a deeper depression on the tibial plateau, thereby increasing the stability of the spherical femoral condyle and tibial plateau.

[0003] In daily life, the human body may cause damage to the meniscus due to excessive use of the meniscus. Except for the edge part which can repair itself after damage, the meniscus cannot repair itself after a rupture, so surgical treatment is required. The meniscus suture device is a commonly used medical device in meniscus surgery. The meniscus suture device can affect the therapeutic effect of the surgery and is extremely important.

[0004] The general meniscus suturing device needs to be manually controlled by the doctor. If there are no precise visiting and limiting components during the manual control of the operation, the meniscus suturing device may not be used accurately, which may hinder the operation.

[0005] Chinese patent authorization announcement number: CN115429352A, authorization announcement date December 6, 2022, discloses a bendable full-suture meniscus suture kit, including a handle body, the handle body is provided with a cavity and a socket, the handle body is installed with an empty tube, a button and a control block, the empty tube is placed at the front end of the handle body, the empty tube is connected with the cavity, the control block is placed in the cavity, a control cavity is provided in the control block, the control cavity is provided with a perforation 1, a perforation 2 and a button hole, the perforation 1, the perforation 2 and the button hole are all connected with the control cavity, one end of the button is placed outside the handle body, and the other end of the button is placed through the socket and the button hole In the control cavity, the button is movably connected with the control block, and the control cavity is equipped with a first line belt, a second line belt and a push needle, a first suture is installed on the first line belt, a second suture is installed on the second line belt, the first suture is connected to the second suture, the first line belt and the second line belt are both placed at the second perforation, the empty tube is connected with the second perforation, the position of the push needle corresponds to the position of the button, a needle is installed at one end of the push needle, the needle is movably connected with the push needle, the position of the first line belt corresponds to the position of the needle in front and back, the position of the second line belt corresponds to the position of the first line belt in top and bottom, and the other end of the push needle is movably connected with the handle body. The shortcoming of this technical solution is that when performing surgery, the manual handle at the rear lower end of the handle body is manually controlled directly to move the manual handle backwards, so that under the control of the manual handle, the cam in the handle body is manually rotated, thereby driving the movement of the push needle touched by the cam. The rotation data of the cam here directly affects the moving distance of the push needle, which directly affects the effect of the operation. However, the handle body is not equipped with a component that can directly limit the cam, which means that the rotation of the cam is carried out in the subconscious of the controller of the handle body. In this way, the smooth progress of the operation may be affected due to unclear rotation of the cam.

[0006] In summary, a structure having components that can clearly detect the rotation status of the cam can be installed. Utility Model Content

[0007] The utility model aims to overcome the shortcoming that the prior art can only perform one operation and cannot understand the rotation of the cam, and provides a bendable full-suture meniscus suturing device equipped with a component that can directly understand the rotation of the cam.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A bendable full-suture meniscus suturing device comprises a handle body, the handle body is provided with a cavity and a control opening, the control opening is connected with the cavity, a hollow tube, a control block, a manual handle and a cam are installed on the handle body, the hollow tube is placed at the front end of the handle body, the hollow tube is connected with the cavity, the control block and the cam are both placed in the cavity, a thread belt and a push needle are installed on the control block, a suture is installed on the thread belt, the position of the suture corresponds to the position of the hollow tube, a needle is installed at the front end of the push needle, the needle and the push needle are movable The manual handle is placed at the control opening, the upper end of the manual handle passes through the control opening and is placed outside the handle body, a gear is installed on the lower end of the manual handle, the gear is meshed with the rack, and the large diameter disk and the gear are detachably connected to the handle body.

[0010] This design allows a cavity and a control opening to be opened on the handle body, so that the control opening is connected to the cavity. At the same time, an empty tube, a control block, a manual handle and a cam can be installed on the handle body, so that the empty tube is placed at the front end of the handle body and is connected to the cavity, and the control block and the cam can be placed in the cavity. Of course, the control block here is equipped with a wire belt and a pushing needle, and the wire belt is installed with sutures. The position of the sutures is front and back corresponding to the position of the empty tube, and a needle is installed at the front end of the pushing needle, and the needle is movably connected to the pushing needle. The wire belt matches the needle, so the parts connection of the device (for suturing surgery) is done well. The cam here includes a large-diameter disk and a small-diameter disk. The large-diameter disk is not only connected to the small-diameter disk, but also the diameter of the large-diameter disk is larger than the diameter of the small-diameter disk, that is, the two ends of the cam result are different arc shapes, and a rack is mounted on the large-diameter disk. The manual handle is placed at the control opening, and the upper end of the manual handle passes through the control opening and is placed outside the handle body, and a gear is installed on the lower end, and the gear is meshed with the rack. If the manual handle is connected, the manual handle can be directly controlled at the upper end outside the handle body to rotate, and the gear at the lower end of the manual handle can be driven to rotate under the control of the manual handle to control the meshing rack to drive the large diameter disk to rotate. Of course, the large diameter disk and the gear here are both detachably connected to the handle body, which is a connection method that allows the manual handle to control and drive the large diameter disk to rotate. The small diameter disk will also rotate around the connection between the large diameter disk and the handle body under the rotation of the large diameter disk. Then, the outer edge of the large diameter disk and the outer edge of the small diameter disk will cyclically touch the rear end of the push needle, so that the push needle will move, thereby controlling the movement of the needle, and then controlling the needle to perform surgery. The rotation of the gear here is regular, and the manual handle rotates a certain angle to represent the rotation angle of the gear. At the same time, the gear and the rack are meshed. Generally speaking, the meshing gear and rack will produce sound when they rotate, so that it can be confirmed that the work of the gear is going smoothly. In this way, the purpose of installing a component that can directly understand the rotation status of the cam is achieved by coordinating the controlled rotation angle of the manual handle with the regular rotation of the gear.

[0011] Preferably, the small diameter disk is provided with a rack 2, the cross-sectional shapes of the rack 1 and the rack 2 are both trapezoidal, and the rear end of the push needle is provided with a wear-resistant block, which is connected to the push needle. In this design, the rack 2 is provided on the small diameter disk, and the cross-sectional shapes of the rack 1 and the rack 2 are both trapezoidal, and the rear end of the push needle is provided with a wear-resistant block, so that the wear-resistant block can first contact the rack 2 and the rack 1, so that when the large diameter disk rotates and drives the small diameter disk to rotate, the rack 2 and the rack 1 can cyclically contact the wear-resistant block, and the wear-resistant block can control the push needle to move, and when the rack 1 contacts the wear-resistant block, the push needle moves forward smoothly to drive the needle forward to perform the operation, and then when the large diameter disk rotates, the push needle can be stably moved backward, that is, the needle moves backward smoothly, and the forward and backward movement of the needle is stably carried out under the contact between the two racks and the wear-resistant block of the rack 2 and the rack 1.

[0012] Preferably, a rolling shaft 1 is installed on the gear, a display ring 38 and two control rolling bearings are installed on the handle body, the two control rolling bearings are respectively placed on the left and right ends of the gear, the control rolling bearing includes a control outer ring and a control inner ring, the control outer ring is connected to the handle body, one end of the rolling shaft 1 is connected to a control inner ring, the other end of the rolling shaft 1 passes through another control inner ring and is connected to the display ring, the manual handle is connected to the gear through the rolling shaft 1, a rolling shaft 2 is installed on the large diameter disk, the position of the rolling shaft 2 corresponds to the position of the wear-resistant block in front and back, miniature rolling bearings are installed at both ends of the rolling shaft 2, and the rolling shaft 2 is connected to the handle body through the miniature rolling bearings. In this design, by installing a rolling shaft 1 on the gear, and installing a display ring and two control rolling bearings on the handle body, the two control rolling bearings are placed at the left and right ends of the gear respectively, so that the control outer ring of the control rolling bearing can be connected to the handle body, one end of the rolling shaft 1 is connected to a control inner ring, and the other end can be connected to the display ring through another control inner ring, and the manual handle is connected to the gear through the rolling shaft 1, so the manual handle can be directly controlled to rotate under the limiting effect of the gear, and the gear can also be driven to rotate. The gear rotation (rotation angle) here can be clearly seen at the end of the rolling shaft 1 at the display ring. The large diameter disk is installed with a rolling shaft 2, and the position of the rolling shaft 2 corresponds to the position of the wear-resistant block. Both ends of the rolling shaft 2 are installed with micro rolling bearings. The rolling shaft 2 is connected to the handle body through the micro rolling bearing, that is, the rolling shaft 2 is connected to the handle body through the micro rolling bearing. Under the rotation of the gear, the meshing rack 1 can smoothly drive the rotation of the large diameter disk, and the rolling shaft 2 rotates smoothly under the support of the handle body.

[0013] Preferably, a handle is installed at the left end of the handle body, the position of the control opening corresponds to the position of the handle in the front and back direction, the handle and the manual handle are both placed at the lower end of the handle body, the handle is connected to the handle body, and the connection between the handle and the handle body forms an obtuse angle β. This design is to install the handle at the left end of the handle body, and the position of the control opening corresponds to the position of the handle in the front and back direction, that is, the position of the manual handle corresponds to the position of the handle in the front and back direction, and the handle is connected to the handle body, and the connection between the handle and the handle body forms an obtuse angle β, so that the palm can hold the handle body to operate the manual handle.

[0014] Preferably, a control cavity is provided in the control block, and a perforation 1 and a perforation 2 are provided on the control cavity, and the perforation 1 and the perforation 2 are both connected to the control cavity, the perforation 2 is placed at the front end of the control block, and the perforation 1 is placed at the rear end of the control block, the thread belt includes thread belt 1 and thread belt 2, the thread belt 1, thread belt 2 and the push needle are all placed in the control cavity, the suture includes suture 1 and suture 2, one end of the suture 1 is connected to thread belt 1, one end of the suture 2 is connected to thread belt 2, the other end of the suture 1 is connected to the other end of the suture 2, the thread belt 1 and the thread belt 2 are both placed at the position of perforation 2, the empty tube is connected to perforation 2, the position of the thread belt 1 corresponds front to back to the position of the needle, and the position of the thread belt 2 corresponds top to bottom to the position of the thread belt 1. In this way, a control cavity can be provided in the control block. The perforation 1 and the perforation 2 on the control block are both connected to the control cavity. The perforation 2 is placed at the front end of the control block, so that the empty tube can be connected to the perforation 2. The perforation 1 can be placed at the rear end of the control block. Of course, the thread belt 1, the thread belt 2 and the push needle are all placed in the control cavity. One end of the suture 1 is connected to the thread belt 1, one end of the suture 2 is connected to the thread belt 2, and the other end of the suture 1 is connected to the other end of the suture 2. Moreover, the thread belt 1 and the thread belt 2 are both placed at the position of the perforation 2. The position of the thread belt 1 is consistent with the position of the needle. The positions correspond front to back, and the position of the second suture corresponds up to and down to the position of the first suture. Therefore, the first suture can be moved under the drive of the needle to perform the operation. When the needle is pushed back, the first and second sutures are tightened under the drive of the needle to form a suture ball. The suture ball of the first suture and the suture ball of the second suture can limit the first and second sutures to the torn part of the meniscus and will not slip into the eye of the needle. Finally, the second suture can be tightened to suture the torn part of the meniscus. The suture of the torn meniscus is completed by removing the excess sutures.

[0015] Preferably, a limiting ring is installed on the control block, the limiting ring is placed in the control cavity, the limiting ring is placed between the second perforation and the button hole, the limiting ring matches the second line belt, the control cavity includes the first control cavity and the second control cavity, the first control cavity is connected to the second control cavity, the first perforation is connected to the first control cavity, the second perforation is connected to the second control cavity, the button hole is placed at the connection between the first control cavity and the second control cavity, and the diameter of the second control cavity is greater than the diameter of the first control cavity. In this way, the limiting ring in the control cavity of the control block can be designed so that when the second line belt is placed in the control cavity, one end of the second line belt is placed inside and outside the control cavity, and the other end of the second line belt is sleeved in the limiting ring. The limiting effect of the limiting ring not only confirms the position of the other end of the second line belt, but also allows the second line belt to be limited by the control block, reducing the probability of the second line belt shaking and leaving the control block, so that the push needle can smoothly align with the second line belt, and push the second line belt after contacting the second line belt, so that the meniscus suturing work can be carried out smoothly. The control cavity allows the push needle to move forward, thereby pushing the thread belt 1 at the control cavity 2 back, allowing the needle head movably connected to the end of the push needle to rise, and after being limited by the button, the needle head is aligned with the thread belt 2, and then the push needle is controlled to move forward. The needle head pushes the alignment thread belt 2 forward and then backs off, thereby completing the placement of thread belts 1 and 2 at the meniscus tear to form a thread ball, and then controlling suture 2 to complete the suturing work. The button hole here is placed at the connection between the control cavity 1 and the control cavity 2, and the diameter of the control cavity 2 is larger than the diameter of the control cavity 1, so that the control of the button can smoothly complete the selective limiting of the push needle, and avoid the situation where the thread belts 1 and 2 move and return to the control cavity 1, and the suturing work cannot be carried out.

[0016] Preferably, a connecting shaft 1 and a barb are installed on the needle, a working rolling bearing and a connecting shaft 2 are installed on the pushing needle, the working rolling bearing is placed at the connection between the needle and the pushing needle, the working rolling bearing includes a working inner ring and a working outer ring, the pushing needle is connected to the working outer ring, the needle is connected to the working inner ring, a compression spring is installed on the connecting shaft 2, the connecting shaft 1 is connected to the connecting shaft 2 through the compression spring, the barb is connected to the needle, and the connection between the barb and the needle forms an acute angle α. In this design, the connection can be made by using a compression spring through the connection shaft 1 installed on the needle and the connection shaft 2 installed on the push needle. Not only that, a working rolling bearing is installed at the connection between the needle and the push needle, the push needle is connected to the working outer ring of the working rolling bearing, and the needle is connected to the working inner ring of the working rolling bearing. Then, when the needle and the push needle are not limited, the needle can automatically tilt up under the elastic effect of the compression spring, and when the needle and the push needle are limited, the needle can be pressed to move downward, so that the needle can selectively align with the line belt 1 or the line belt 2, so as to push the line belt 1 or the line belt 2 to the torn meniscus for suturing. The needle can be used to push against the first or second thread belt to push it. When the first or second thread belt reaches the torn meniscus and then moves back, the barb installed on the needle can pull the suture on the first or second thread belt to form a thread ball, which is limited to the torn meniscus to prevent the first or second thread belt from slipping into the needle eye. In this way, the suturing work of the meniscus can proceed smoothly.

[0017] Preferably, the control block is provided with a button hole, the button hole is connected with the control cavity, the right end of the handle body is provided with a jack, a button is installed at the jack, a limit plate, a soft module and a connecting rod are installed on the button, the upper end of the button passes through the button hole and is placed outside the control block, the limit plate is placed at the upper end of the button, the diameter of the limit plate is larger than the diameter of the button hole, the soft module is placed at the lower end of the button, the position of the soft module corresponds to the position of the push pin, springs are installed at both ends of the connecting rod, the connecting rod is connected with the control block through the spring, and the push pin is placed between the two springs. In this design, the button hole is connected with the control cavity by setting a button hole on the control block, and the right end of the handle body is provided with a jack, a button is installed at the jack, a limit plate, a soft module and a connecting rod are installed on the button, the limit plate is placed at the upper end of the button, and the diameter of the limit plate is larger than the diameter of the button hole, which not only facilitates the up and down movement control of the button, but also prevents the end outside the handle body from moving into the handle body when the button moves. The soft module is placed at the lower end of the button, and the position of the soft module corresponds to the position of the push pin. When the button moves, the friction damage to the push pin caused by the button in the handle body touching the push pin when it moves down can be reduced, which is convenient for the maintenance of the push pin and the button and can be used for a long time. The connecting rod installed on the button can not only limit the button to prevent it from leaving the control cavity when it moves up and down. Springs can also be installed on both ends of the connecting rod. When the button is not controlled, the elastic effect of the spring can make the end of the button in the control cavity move down. When the button moves down, it can be in a position that can block the movement of the push pin, which is convenient for the button to limit the push pin.

[0018] The beneficial effects of the utility model are: it can achieve the purpose of installing a component that can directly understand the rotation status of the cam; it can achieve the purpose of installing a structure that has a limiting effect on the pushing structure; it is convenient to manually control the pushing work of the wire band one or the wire band two; and it can allow the two ends of the button to be stably limited inside and outside the control cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 yes Figure 1 The enlarged cross-sectional view at A in the middle;

[0021] Figure 3 yes Figure 1 The enlarged cross-sectional view at B in the middle;

[0022] Figure 4 This is a schematic diagram of a working state of the button of the utility model;

[0023] Figure 5 This is another schematic diagram of the working state of the button of the utility model;

[0024] Figure 6 yes Figure 5 Schematic diagram of the structure of the cross section at CC;

[0025] Figure 7 yes Figure 5 The enlarged cross-sectional view at D in the middle;

[0026] Figure 8 It is a connection diagram of the cam of the utility model;

[0027] Fig. 9 It is a connection schematic diagram of the gears of the utility model.

[0028] In the figure: 1. handle body, 2. empty tube, 3. push needle, 4. thread belt one, 5. suture one, 6. jack, 7. button, 8. control block, 9. perforation one, 10. perforation two, 11. button hole, 12. control cavity, 13. thread belt two, 14. suture two, 15. limit ring, 16. connecting rod, 17. spring, 18. needle, 19. working rolling bearing, 20. connecting shaft one, 21. connecting shaft two, 22. compression spring, 23. handle, 24. manual handle, 25. wear-resistant block, 26. large diameter disk, 27. barb, 28. limit disk, 29. soft module, 30. control opening, 31. gear, 32. rolling shaft one, 33. small diameter disk, 34. rolling shaft two, 35. rack one, 36. rack two, 37. control rolling bearing, 38. display ring. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 , Figure 3 , Figure 7 and Figure 8In the embodiment shown, a bendable full-suture meniscus suturing device includes a handle body 1, the handle body 1 is provided with a cavity and a control opening 30, the control opening 30 is connected to the cavity, an empty tube 2, a control block 8, a manual handle 24 and a cam are installed on the handle body 1, the empty tube 2 is placed at the front end of the handle body 1, the empty tube 2 is connected to the cavity, the control block 8 and the cam are both placed in the cavity, a thread belt and a push needle 3 are installed on the control block 8, a suture is installed on the thread belt, and the position of the suture corresponds to the position of the empty tube 2 in front and back, a needle 18 is installed at the front end of the push needle 3, the needle 18 is movably connected to the push needle 3, and the thread belt is provided with a suture. The belt matches the needle head 18, and the position of the rear end of the push needle 3 corresponds to the position of the cam in front and back. The cam includes a large diameter disk 26 and a small diameter disk 33. The large diameter disk 26 is connected to the small diameter disk 33. The diameter of the large diameter disk 26 is larger than the diameter of the small diameter disk 33. The large diameter disk 26 is equipped with a rack 1 35. The manual handle 24 is placed at the control opening 30. The upper end of the manual handle 24 passes through the control opening 30 and is placed outside the handle body 1. The lower end of the manual handle 24 is equipped with a gear 31, which meshes with the rack 1 35. The large diameter disk 26 and the gear 31 are both detachably connected to the handle body 1. The small diameter disk 33 is equipped with a rack 2 36. The cross-sectional shape of the rack 1 35 and the cross-sectional shape of the rack 2 36 are both trapezoidal. The rear end of the push needle 3 is equipped with a wear-resistant block 25, which is connected to the push needle 3.

[0031] like Figure 1 , Figure 8 and Fig. 9 As shown, a rolling shaft 1 32 is installed on the gear 31, a display ring 38 and two control rolling bearings 37 are installed on the handle body 1, and the two control rolling bearings 37 are respectively placed on the left and right ends of the gear 31, and the control rolling bearing 37 includes a control outer ring and a control inner ring, and the control outer ring is connected to the handle body 1, one end of the rolling shaft 1 32 is connected to a control inner ring, and the other end of the rolling shaft 1 32 passes through the other control inner ring and is connected to the display ring 38, the manual handle 24 is connected to the gear 31 through the rolling shaft 1 32, and a rolling shaft 2 34 is installed on the large diameter disk 26, and the position of the rolling shaft 2 34 corresponds to the position of the wear-resistant block 25 in front and back, and miniature rolling bearings are installed at both ends of the rolling shaft 2 34, and the rolling shaft 2 34 is connected to the handle body 1 through the miniature rolling bearings.

[0032] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8As shown, a handle 23 is installed at the left end of the handle body 1, and the position of the control opening 30 corresponds to the position of the handle 23 in front and back. The handle 23 and the manual handle 24 are both placed at the lower end of the handle body 1, and the handle 23 is connected to the handle body 1, and the connection between the handle 23 and the handle body 1 forms an obtuse angle β. A control chamber 12 is provided in the control block 8, and a perforation 19 and a perforation 2 10 are provided on the control chamber 12, and the perforation 19 and the perforation 2 10 are both connected to the control chamber 12, and the perforation 2 10 is placed at the front end of the control block 8, and the perforation 19 is placed at the rear end of the control block 8. The thread belt includes a thread belt 1 4 and a thread belt 2 13, and the thread belt 1 4, the thread belt 2 13 and the push needle 3 are all placed in the control chamber 12. The suture includes a suture 1 5 and a suture 2 14, one end of the suture 1 5 is connected to the thread belt 1 4, one end of the suture 2 14 is connected to the thread belt 2 13, and the other end of the suture 1 5 is connected to the other end of the suture 2 14, and the thread belt 1 4 and the thread belt 2 13 are both placed at the position of the perforation 2 10, and the empty tube 2 is connected to the perforation 2 10, and the position of the thread belt 1 4 corresponds front to back to the position of the needle 18, and the position of the thread belt 2 13 corresponds top to bottom to the position of the thread belt 1 4. A limit ring 15 is installed on the control block 8, and the limit ring 15 is placed in the control cavity 12. The limit ring 15 is placed between the second perforation 10 and the button hole 11. The limit ring 15 matches the second line belt 13. The control cavity 12 includes a control cavity one and a control cavity two. The control cavity one is connected to the control cavity two. The perforation one 9 is connected to the control cavity one, and the perforation two 10 is connected to the control cavity two. The button hole 11 is placed at the connection between the control cavity one and the control cavity two. The diameter of the control cavity two is larger than the diameter of the control cavity one.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, a connecting shaft 1 20 and a barb 27 are installed on the needle 18, a working rolling bearing 19 and a connecting shaft 21 are installed on the pushing needle 3, the working rolling bearing 19 is placed at the connection between the needle 18 and the pushing needle 3, the working rolling bearing 19 includes a working inner ring and a working outer ring, the pushing needle 3 is connected to the working outer ring, the needle 18 is connected to the working inner ring, a compression spring 22 is installed on the connecting shaft 21, the connecting shaft 1 20 is connected to the connecting shaft 2 21 through the compression spring 22, the barb 27 is connected to the needle 18, and the connection between the barb 27 and the needle 18 forms an acute angle α. A button hole 11 is provided on the control block 8, and the button hole 11 is connected with the control cavity 12. A socket 6 is provided at the right end of the handle body 1, and a button 7 is installed at the socket 6. A limit plate 28, a soft module 29 and a connecting rod 16 are installed on the button 7. The upper end of the button 7 passes through the button hole 11 and is placed outside the control block 8. The limit plate 28 is placed at the upper end of the button 7. The diameter of the limit plate 28 is larger than the diameter of the button hole 11. The soft module 29 is placed at the lower end of the button 7. The position of the soft module 29 corresponds to the position of the push pin 3. Springs 17 are installed at both ends of the connecting rod 16. The connecting rod 16 is connected to the control block 8 through the spring 17, and the push pin 3 is placed between the two springs 17.

[0034] First, it will be confirmed whether the thread belt 1 4 and the thread belt 2 13 are installed on the handle body 1. Here, suture 1 5 is installed on thread belt 1 4, and suture 2 14 is installed on thread belt 2 13. One end of suture 1 5 is connected to the outer wall of thread belt 1 4, one end of suture 2 14 is connected to the outer wall of thread belt 2 13, and the other end of suture 1 5 is connected to suture 2 14. The other end of suture 2 14 is placed in the control cavity 12 in the control block 8, one end of thread belt 1 4 and one end of thread belt 2 13 are placed at the position of perforation 2 10, and the other end of thread belt 1 4 and the other end of thread belt 2 13 are placed in the control cavity 2 connected to perforation 2 10. A button 7 is installed at the connection between control cavity 1 and control cavity 2, and a needle 18 is installed at one end of the push needle 3. The position of the needle 18 corresponds to the position of thread belt 1 4. This is the initial state of the meniscus suture kit, which is ready for the suture operation.

[0035] Then, the palm controls the handle 23 at the rear lower end of the handle body 1 to stably control the handle body 1. Here, the connection between the handle 23 and the handle body 1 forms an obtuse angle β, which is convenient for the palm to control. Then, the finger controls the manual handle 24 at the rear lower end of the handle body 1 to move the manual handle 24 backward. The upper end of the manual handle 24 here is placed outside the handle body 1 through the control opening 30, and a gear 31 is installed on the lower end. A cam is also installed in the cavity. This cam includes a large diameter disk 26 and a small diameter disk 33. The diameter of the large diameter disk 26 is larger than the diameter of the small diameter disk 33. A rack 1 35 is mounted on the large diameter disk 26, and a rack 2 36 is mounted on the small diameter disk 33. The cross-sectional shape of the rack 1 35 and the cross-sectional shape of the rack 2 36 are both trapezoidal. The wear-resistant block 25 installed at the rear end of the push needle 3 can contact the rack 1 35 and the rack 2 36. Of course, in order to reduce the probability of the wear-resistant block 25 being inserted into the tooth groove of the small diameter disk 33 or the large diameter disk 26, a roller can be installed at the end of the wear-resistant block 25, so that the roller is connected to the wear-resistant block 25 through the rotating shaft. At the same time, the gear 31 is connected through the rolling shaft 1 32 and the control rolling bearing 37, and the large diameter disk 26 is connected through the rolling shaft 2 34 and the micro rolling bearing. In this way, the gear 31 and the cam can rotate stably under the support effect, so the upper end of the manual handle 24 can be directly controlled to rotate, thereby driving the rotation of the gear 31. With the cooperation of the meshing rack 1 35, the large diameter disk 26 can naturally be smoothly driven to rotate. Of course, the work of the manual handle 24 here is carried out under the limiting effect of the control opening 30, that is, the rotation of the large diameter disk 26 has upper and lower limits. In other words, the rack 2 36 on the small diameter disk 33 can be allowed to contact the wear-resistant block 25 at the beginning, and when the large diameter disk 26 is driven to rotate, the wear-resistant block 25 can be controlled to move until the large diameter disk 26 rotates to push the wear-resistant block 25 to a position where it cannot be pushed (generally opposite to the end of the small diameter disk 33). In this way, the wear-resistant block 25 can smoothly control the movement of the push needle 3. The needle 18 at one end of the pushing needle 3 here can push the wire belt 4 to move forward, allowing the wire belt 4 to pass through the empty tube 2 and be placed at the meniscus tear, and then the upper end of the manual handle 24 is rotated in the opposite direction, so that the pushing needle 3 can drive the wire belt 4 to move in the opposite direction, and the needle 18 can be retreated into the control chamber 2. A barb 27 is installed on the needle 18. When the needle 18 is retreated, the wire in the wire belt 4 will be hooked by the barb 27, so that the wire belt 4 is tightened by force to form a wire ball, which prevents the wire belt 4 from slipping into the needle eye. The connecting part of the control chamber 1 and the control chamber 2 has the end of the button 7, so the movement of the pushing needle 3 is limited.

[0036] Then, pull the limit plate 28 installed at the end of the button 7 outside the jack 6 to move the end of the button 7 in the control cavity 12 toward the button hole 11. The end of the button 7 in the control cavity 12 is connected to the connecting rod 16, and the two ends of the connecting rod 16 are connected to the control block 8 through the spring 17. Then, the up and down movement of the button 7 is carried out stably. In the absence of the downward pressure of the button 7, the connecting shaft 21 installed on the push needle 3 and the connecting shaft 1 20 installed on the needle 18 are connected by a compression spring 22, and the push needle 3 is connected to the working outer ring of the working rolling bearing 19, and the needle 18 is connected to the working inner ring of the working rolling bearing 19. In this way, the needle 18 can be limited by the push needle 3 and work upward under the elastic effect of the compression spring 22 until it is blocked by the end of the button 7. Here, the end position of the wire band 2 13 can be placed near the end position of the button 7, so the needle 18 is aligned with the end of the wire band 2 13. Not only that, the wire band 2 13 is also mounted in the limiting ring 15 installed on the control block 8, so that the end position of the wire band 2 13 is stable here. Then control the manual handle 24 to push the push needle 3, let the needle head 18 hit the thread belt 2 13 and then push the thread belt 2 13 to another position of the meniscus tear, and then retract the push needle 3. The thread belt 1 4 and the thread belt 2 13 are placed at two positions of the meniscus tear. It is only necessary to control the suture 2 14 on the thread belt 2 13 to tighten the meniscus tear for suturing, and finally cut off the excess suture 2 14, and the operation is completed.

[0037] Under the cooperation of the gear 31 and the cam here, the movement of the needle 18 can be smoothly controlled, that is, the operation can be smoothly performed, and the purpose of installing a component that can directly understand the rotation of the cam is achieved. The rotation of the gear 31 here drives the rotation of the meshing rack 35. Generally speaking, the meshing will produce sound, so that the outside world can hear it. In addition, the display ring 38 can be marked, and the rolling shaft 32 set in the display ring 38 can also be marked with an arrow, so that the angle of rotation of the gear 31 can be clearly known under the arrow mark. In the meniscus suture kit, the wear-resistant block 25 can be selected to use stainless steel, which is not only wear-resistant and reduces wear, but also easy to replace. The soft module 29 can be selected from rubber. The soft rubber is not only cheap and durable, but also will not cause major damage to the push pin 3 when pressed to the push pin 3, which is convenient for the long-term use of the push pin 3 and the button 7.

Claims

1. A bendable full-suture meniscus suturing device, characterized in that: The invention comprises a handle body (1), the handle body (1) being provided with a cavity and a control opening (30), the control opening (30) being in communication with the cavity, the handle body (1) being provided with an empty tube (2), a control block (8), a manual handle (24) and a cam, the empty tube (2) being arranged at the front end of the handle body (1), the empty tube (2) being in communication with the cavity, the control block (8) and the cam being arranged in the cavity, the control block (8) being provided with a thread belt and a push needle (3), the thread belt being provided with a suture, the position of the suture being in front and back correspondence with the position of the empty tube (2), the front end of the push needle (3) being provided with a needle head (18), the needle head (18) being movably connected with the push needle (3), the thread belt being matched with the needle head (18), The position of the rear end of the push pin (3) corresponds to the position of the cam in front and back. The cam comprises a large diameter disk (26) and a small diameter disk (33). The large diameter disk (26) is connected to the small diameter disk (33). The diameter of the large diameter disk (26) is larger than the diameter of the small diameter disk (33). A rack (35) is mounted on the large diameter disk (26). The manual handle (24) is placed at the control opening (30). The upper end of the manual handle (24) passes through the control opening (30) and is placed outside the handle body (1). A gear (31) is mounted on the lower end of the manual handle (24). The gear (31) is meshed with the rack (35). The large diameter disk (26) and the gear (31) are both detachably connected to the handle body (1).

2. The bendable full-suture meniscus suturing device according to claim 1, characterized in that: The small diameter disk (33) is provided with a second rack (36), the cross-sectional shapes of the first rack (35) and the second rack (36) are both trapezoidal, and a wear-resistant block (25) is installed at the rear end of the push pin (3), and the wear-resistant block (25) is connected to the push pin (3).

3. The bendable full-suture meniscus suturing device according to claim 2, characterized in that: The gear (31) is mounted with a rolling shaft 1 (32). The handle body (1) is mounted with a display ring (38) and two control rolling bearings (37). The two control rolling bearings (37) are respectively arranged at the left and right ends of the gear (31). The control rolling bearing (37) comprises a control outer ring and a control inner ring. The control outer ring is connected to the handle body (1). One end of the rolling shaft 1 (32) is connected to one control inner ring. The other end of the rolling shaft 1 (32) passes through the other control inner ring and is connected to the display ring (38). The manual handle (24) is connected to the gear (31) via the rolling shaft 1 (32). The large diameter disk (26) is mounted with a rolling shaft 2 (34). The position of the rolling shaft 2 (34) corresponds to the position of the wear-resistant block (25) in front and back. Miniature rolling bearings are mounted at both ends of the rolling shaft 2 (34). The rolling shaft 2 (34) is connected to the handle body (1) via the miniature rolling bearings.

4. The bendable full-suture meniscus suturing device according to claim 1, characterized in that: A handle (23) is mounted on the left end of the handle body (1); the position of the control opening (30) corresponds to the position of the handle (23) in front and back; the handle (23) and the manual handle (24) are both disposed at the lower end of the handle body (1); the handle (23) is connected to the handle body (1); and the connection between the handle (23) and the handle body (1) forms an obtuse angle β.

5. The bendable full-suture meniscus suturing device according to claim 1, characterized in that: The control block (8) is provided with a control chamber (12), and the control chamber (12) is provided with a first perforation (9) and a second perforation (10), the first perforation (9) and the second perforation (10) are both in communication with the control chamber (12), the second perforation (10) is located at the front end of the control block (8), and the first perforation (9) is located at the rear end of the control block (8), the thread belt comprises a first thread belt (4) and a second thread belt (13), the first thread belt (4), the second thread belt (13) and the push needle (3) are all located in the control chamber (12), and the suture comprises a first suture (5) and a second suture (13). The second thread (14) is provided with one end of the first thread (5) connected to the first thread belt (4), one end of the second thread (14) connected to the second thread belt (13), the other end of the first thread (5) connected to the other end of the second thread (14), the first thread belt (4) and the second thread belt (13) are both placed at the position of the second perforation (10), the empty tube (2) is connected to the second perforation (10), the position of the first thread belt (4) corresponds to the position of the needle (18) in front and back, and the position of the second thread belt (13) corresponds to the position of the first thread belt (4) in top and bottom.

6. The bendable full-suture meniscus suturing device according to claim 5, characterized in that: A limit ring (15) is installed on the control block (8), the limit ring (15) is placed in the control cavity (12), the limit ring (15) is placed between the second perforation (10) and the button hole (11), the limit ring (15) matches the second line belt (13), the control cavity (12) comprises a first control cavity and a second control cavity, the first control cavity is connected to the second control cavity, the first perforation (9) is connected to the first control cavity, the second perforation (10) is connected to the second control cavity, the button hole (11) is placed at the connection between the first control cavity and the second control cavity, and the diameter of the second control cavity is larger than the diameter of the first control cavity.

7. The bendable full-suture meniscus suturing device according to claim 5, characterized in that: The needle (18) is provided with a connecting shaft 1 (20) and a barb (27), and the push needle (3) is provided with a working rolling bearing (19) and a connecting shaft 2 (21). The working rolling bearing (19) is arranged at the connection between the needle (18) and the push needle (3), and the working rolling bearing (19) comprises a working inner ring and a working outer ring. The push needle (3) is connected to the working outer ring, and the needle (18) is connected to the working inner ring. A compression spring (22) is provided on the connecting shaft 2 (21), and the connecting shaft 1 (20) is connected to the connecting shaft 2 (21) via the compression spring (22). The barb (27) is connected to the needle (18), and the connection between the barb (27) and the needle (18) forms an acute angle α.

8. The bendable full-suture meniscus suturing device according to claim 5, characterized in that: The control block (8) is provided with a button hole (11), the button hole (11) being communicated with the control chamber (12); the right end of the handle body (1) is provided with a socket (6), a button (7) is installed at the socket (6), a limit plate (28), a soft module (29) and a connecting rod (16) are installed on the button (7); the upper end of the button (7) passes through the button hole (11) and is placed outside the control block (8); the limit plate (28) is placed at the upper end of the button (7); the diameter of the limit plate (28) is larger than the diameter of the button hole (11); the soft module (29) is placed at the lower end of the button (7); the position of the soft module (29) corresponds to the position of the push pin (3) in upper and lower directions; springs (17) are installed at both ends of the connecting rod (16); the connecting rod (16) is connected to the control block (8) through the spring (17); and the push pin (3) is placed between the two springs (17).

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