CN115869029B - Meniscus stitching instrument - Google Patents

Abstract

The present invention relates to a meniscus suture device, comprising a handle, wherein a telescopic slot is provided on the handle, and a movable body is movably arranged in the telescopic slot, and a suture nail is arranged at one end of the movable body facing the telescopic slot opening, and a first adjustment mechanism is arranged on the handle to drive the movable body to move in the telescopic slot with the suture nail. The present invention improves the structure of the existing meniscus suture device, and the improved meniscus suture device can retract the suture nail in the handle, so that during the movement, the suture nail can be prevented from falling off and the user can be avoided from being hurt during the movement, and the structural design of the present invention is reasonable, and the suture nail can be easily pushed out of the handle.

Description

A meniscus suture device

Technical Field

The invention relates to the technical field of medical devices, and in particular to a meniscus suturing device.

Background technique

The meniscus is a semi-lunar shaped bone on the inner and outer sides of the tibial joint. The meniscus is fibrocartilaginous, with thicker edges that are tightly connected to the joint capsule, and a thinner center that is free. Only the edges of the meniscus can repair themselves after damage, but the meniscus cannot repair itself after a rupture.

When the damaged meniscus occurs in the outer red zone (blood supply zone) or the edge zone where the red and white meet, meniscus suture can be used for treatment to facilitate the self-repair of the torn meniscus. When performing a meniscus suture, a meniscus suture device is required. The suture needle on the meniscus suture device can puncture and fix a fixed anchor on the meniscus with one puncture. The two fixed anchors on the suture line are respectively passed through the two sides of the meniscus tear. After the two ends of the suture line are fixed to the two sides of the meniscus tear through the fixed anchors, the suture line is tightened and knotted, and then the excess suture line is cut off with a thread cutter to complete the suture of the meniscus. If the tear is too large, multiple stitches need to be sutured repeatedly.

Meniscus suturing is currently the most ideal surgical method for treating meniscus injuries. Existing meniscus suture devices still have many shortcomings in actual use, such as: (1) the suture staples are prone to failure in being pushed out; (2) the suture staples are prone to falling off during transportation, storage, and the initial stage of surgical preparation. In order to solve the above problems, the present invention proposes a meniscus suture device.

Summary of the invention

(1) Technical issues to be solved

The purpose of the present invention is to overcome the deficiencies of the prior art, meet practical needs, and provide a meniscus suture device to solve the above technical problems.

(2) Technical solution

In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

A meniscus suturing device comprises a handle, wherein a telescopic slot is provided on the handle, and a moving body is movably arranged in the telescopic slot, a suture nail is arranged at one end of the moving body facing the opening of the telescopic slot, and a first adjusting mechanism is arranged on the handle to drive the moving body to move in the telescopic slot with the suture nail.

Furthermore, the first adjustment mechanism includes a first threaded rod and a threaded groove, the first threaded rod is threadedly inserted in the threaded groove, and the threaded groove is provided on the movable body, the first threaded rod is movably inserted on the handle, and one end of the first threaded rod outside the threaded groove is connected to a screwing disk.

Furthermore, a limiting mechanism is arranged in the telescopic slot, and the limiting mechanism includes a limiting slide slot and a limiting block, the limiting slide slot is opened on the mobile body, the limiting block is slidably arranged in the limiting slide slot, and the limiting block is fixedly connected to the side wall of the telescopic slot.

Furthermore, a second adjustment mechanism is provided on the handle, and the second adjustment mechanism includes a second threaded rod and a threaded hole, one end of the second threaded rod is fixedly connected to the side wall of the movable body, and the other end of the second threaded rod is fixedly connected to a guide reset member, and the free end of the guide reset member is fixedly connected to the side wall of the telescopic slot, the threaded hole is opened on the first gear, and the second threaded rod is threadedly inserted in the threaded hole, a support assembly is provided on the side wall of the first gear, and the first gear is meshed with the second gear, and the second gear is fixedly sleeved outside the first threaded rod.

Furthermore, the support assembly includes a fixing ring, a limiting ring and a fixing rod, the fixing ring is fixedly connected to the side wall of the first gear, an annular groove is provided on the fixing ring, a limiting ring is movably sleeved in the annular groove, a fixing rod is fixedly connected to the outer ring wall of the limiting ring, and the fixing rod is fixedly connected to the side wall of the telescopic groove.

Furthermore, the guide reset member includes a guide reset rod, a guide reset cylinder and a guide reset spring, the guide reset rod is movably inserted in the guide reset cylinder, the guide reset spring is externally wound and connected with the guide reset rod, and one end of the guide reset spring is fixedly connected to the side wall of the guide reset rod, and the other end of the guide reset spring is fixedly connected to the outer side wall of the guide reset cylinder.

Furthermore, a limiting mechanism is provided on the handle, and the limiting mechanism includes a limiting plate and a limiting groove. There are two limiting plates, and the two limiting plates are fixedly mounted outside the first threaded rod. The two limiting plates are movably arranged in the limiting grooves, and the two limiting grooves are respectively opened on the inner side wall of the telescopic groove and the outer side wall of the handle, wherein the sides of the two limiting plates close to each other are in contact with the side walls of the two limiting grooves.

Furthermore, a locking mechanism is provided on the handle, and the locking mechanism includes a limit rod and a support spring. The limit rod is movably inserted on the limit plate, and the support spring is wound and connected to the outside of the limit rod, and the two ends of the support spring are respectively fixedly connected to the side wall of the limit rod and the side wall of the limit plate, the limit rod is movably inserted in the limit groove, and the limit groove is opened on the handle, and the end of the limit rod located outside the limit groove is fixedly connected with an elastic ring.

Furthermore, a measuring mechanism is provided on the handle, and the measuring mechanism includes a first sensing contact and a second sensing contact, the first sensing contact and the second sensing contact are abutted against each other, and the first sensing contact is embedded in the limiting plate, and one end of the second sensing contact away from the first sensing contact is fixedly connected to one end of a connecting member, and the other end of the connecting member is fixedly connected to a display, and the display is embedded in the handle.

Furthermore, a conduction mechanism is provided in the first adjustment mechanism, and the conduction mechanism includes a No. 1 slot and a connecting spring, the No. 1 slot is opened on the twisting disk, the first threaded rod is movably inserted in the No. 1 slot, one end of the connecting spring is fixedly connected to the first threaded rod, and the other end of the connecting spring is fixedly connected to the side wall of the No. 2 slot, the No. 2 slot is opened on the side wall of the No. 1 slot, the side wall of the No. 1 slot is fixedly connected with a second electrode contact, and the first threaded rod is fixedly connected with a first electrode contact matching the second electrode contact.

(3) Beneficial effects:

The present invention improves the existing meniscus suture device structure. The improved meniscus suture device can retract the suture nails in the handle, so that during the movement, the suture nails can be prevented from falling and the user can be avoided from being injured during movement. In addition, the present invention has a reasonable structural design and can easily push the suture nails out of the handle.

The present invention provides a first adjustment mechanism, which is used to adjust the process of the suture staple extending into or out of the telescopic slot. The first adjustment mechanism has a reasonable structural design, which can achieve the effect of convenient operation during the adjustment process, and at the same time, improve the effect of accurate operation, ensuring that the suture staple can be extended into or out of the telescopic slot in a timely manner under the adjustment of the first adjustment mechanism.

The present invention provides a limiting mechanism, which is used to limit the movement of the mobile body. By adjusting the limit of the mobile body, it can ensure that the mobile body can enter and exit the telescopic slot in the horizontal direction, and at the same time, it can also position the position of the suture nail. Specifically, during the process of suture nail movement and suturing, medical errors caused by misoperation can be avoided under the role of positioning.

The present invention provides a second adjustment mechanism, which is used to assist the first adjustment mechanism, so as to achieve a more efficient effect on the insertion or extension of the suture staples, and ensure that when the cooperation between the first threaded rod and the threaded groove cannot adjust the movable body, the suture staples can still be moved to the suture position through the action of the second adjustment mechanism, thereby achieving a treatment effect.

The limiting mechanism in the present invention can limit the first threaded rod. Specifically, the limiting mechanism can limit the first threaded rod to only have the ability to rotate but not to move in the horizontal direction.

The locking mechanism in the present invention is used to achieve position-limited locking of the suture staple. Specifically, after the position of the suture staple is adjusted, the locking mechanism is provided in the present invention to prevent the suture staple from moving relative to the handle.

A measuring mechanism is provided in the present invention, and the measuring mechanism is provided to monitor the adjustment distance of the suture staple. Specifically, the rotation distance of the limit plate is transmitted to the display through the combined structure of the first sensing contact, the second sensing contact and the connecting piece, so that the precise movement distance of the suture staple can be obtained by reading and calculating on the display.

A conduction mechanism is provided in the present invention, and the conduction mechanism is provided for realizing the control of the display. Through the setting of the conduction mechanism, the display can be automatically regulated, which can not only achieve the effect of energy saving and consumption reduction, but also improve the degree of automation of the equipment. Specifically, when the elastic ring is hung on the twisting disk, the pulling force will cause the twisting disk to move in the direction of the handle, so that the first electrode contact piece and the second electrode contact piece will be connected in series circuit, the display will be powered on, and it will start to work during the rotation of the limit plate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an embodiment of a meniscus suture device according to the present invention;

FIG2 is a schematic structural diagram of a second adjustment mechanism of the meniscus suture device of the present invention;

FIG3 is an enlarged schematic diagram of the structure A in FIG2 of the meniscus suture device of the present invention;

FIG4 is a schematic diagram of the locking mechanism structure of the meniscus suture device of the present invention;

FIG. 5 is a schematic diagram of the structure of the measuring mechanism in the meniscus suture device of the present invention.

The reference numerals are as follows:

Handle 1, telescopic slot 2, moving body 3, suture nail 4, limiting mechanism 5, limiting slide slot 51, limiting block 52, first adjusting mechanism 6, first threaded rod 61, threaded slot 62, twisting disk 63, second adjusting mechanism 7, second threaded rod 71, threaded hole 72, first gear 73, second gear 74, fixing ring 75, limiting ring 76, fixing rod 77, guide reset member 78, guide reset rod 781, guide reset cylinder 782, guide reset spring 783, limiting mechanism 8, limiting plate 81, limiting slot 82, locking mechanism 9, limiting rod 91, supporting spring 92, elastic ring 93, limiting slot 94, measuring mechanism 10, first induction contact 101, second induction contact 102, connecting member 103, display 104, conduction mechanism 11, No. 1 slot 111, connecting spring 112, No. 2 slot 113, first electrode contact sheet 114, second electrode contact sheet 115.

Detailed ways

The present invention is further described below in conjunction with Figures 1-5 and embodiments:

A meniscus suture device comprises a handle 1, a telescopic slot 2 is provided on the handle 1, a moving body 3 is movably provided in the telescopic slot 2, a suture nail 4 is provided at one end of the moving body 3 facing the telescopic slot 2, and a first adjustment mechanism 6 is provided on the handle 1 to drive the moving body 3 to move with the suture nail 4 in the telescopic slot 2. The present invention improves the structure of the existing meniscus suture device. The improved meniscus suture device can retract the suture nail 4 in the handle 1, so that during the movement, the suture nail 4 can be prevented from falling off and the user can be avoided from being hurt during the movement. In addition, the structural design of the present invention is reasonable, and the suture nail 4 can be easily pushed out of the handle 1.

In this embodiment, the first adjusting mechanism 6 includes a first threaded rod 61 and a threaded groove 62. The first threaded rod 61 is threadedly inserted in the threaded groove 62, and the threaded groove 62 is provided on the movable body 3. The first threaded rod 61 is movably inserted in the handle 1, and one end of the first threaded rod 61 outside the threaded groove 62 is connected to a screwing disk 63. The first adjusting mechanism 6 is provided in the present invention. The setting of the first adjusting mechanism 6 is used to adjust the process of the suture staple 4 extending into or out of the telescopic slot 2. The structural design of the first adjusting mechanism 6 is reasonable, which can achieve the effect of convenient operation during the adjustment process, and at the same time, can improve the effect of accurate operation, thereby ensuring that the suture staple 4 can be timely extended into or out of the telescopic slot 2 under the adjustment of the first adjusting mechanism 6.

In this embodiment, a limiting mechanism 5 is provided in the telescopic slot 2, and the limiting mechanism 5 includes a limiting slide groove 51 and a limiting block 52. The limiting slide groove 51 is provided on the mobile body 3, and the limiting block 52 is slidably provided in the limiting slide groove 51, and the limiting block 52 is fixedly connected to the side wall of the telescopic slot 2. The limiting mechanism 5 is provided in the present invention, and the setting of the limiting mechanism 5 is used to achieve a limiting effect on the movement of the mobile body 3. By adjusting the limiting position of the mobile body 3, it can be ensured that the mobile body 3 can enter and exit the telescopic slot 2 in the horizontal direction, and at the same time, it can also play a role in positioning the position of the suture nail 4. Specifically, in the process of movement and suturing of the suture nail 4, medical errors caused by misoperation can be avoided under the role of positioning.

In this embodiment, a second adjustment mechanism 7 is provided on the handle 1, and the second adjustment mechanism 7 includes a second threaded rod 71 and a threaded hole 72. One end of the second threaded rod 71 is fixedly connected to the side wall of the mobile body 3, and the other end of the second threaded rod 71 is fixedly connected to a guide reset member 78, and the free end of the guide reset member 78 is fixedly connected to the side wall of the telescopic groove 2. The threaded hole 72 is provided on the first gear 73, and the second threaded rod 71 is threadedly inserted in the threaded hole 72. A supporting assembly is provided on the side wall of the first gear 73, and the first gear 73 is meshed with the second gear 74, and the second gear 74 is fixedly sleeved outside the first threaded rod 61. In the present invention, a second adjustment mechanism 7 is provided, and the second adjustment mechanism 7 is provided to assist the first adjustment mechanism 6, so that the insertion or extension of the suture nail 4 can be more efficiently achieved, and when the cooperation of the first threaded rod 61 and the threaded groove 62 cannot achieve adjustment of the mobile body 3, the suture nail 4 can still be moved to the suture position through the action of the second adjustment mechanism 7, so as to achieve a therapeutic effect.

In this embodiment, the support assembly includes a fixing ring 75, a limiting ring 76 and a fixing rod 77. The fixing ring 75 is fixedly connected to the side wall of the first gear 73. An annular groove is provided on the fixing ring 75. A limiting ring 76 is movably sleeved in the annular groove. A fixing rod 77 is fixedly connected to the outer ring wall of the limiting ring 76, and the fixing rod 77 is fixedly connected to the side wall of the telescopic slot 2.

In this embodiment, the guide reset member 78 includes a guide reset rod 781, a guide reset cylinder 782 and a guide reset spring 783. The guide reset rod 781 is movably inserted in the guide reset cylinder 782, and the guide reset spring 783 is externally wound and connected with the guide reset rod 781. One end of the guide reset spring 783 is fixedly connected to the side wall of the guide reset rod 781, and the other end of the guide reset spring 783 is fixedly connected to the outer wall of the guide reset cylinder 782.

In the present embodiment, a limiting mechanism 8 is provided on the handle 1, and the limiting mechanism 8 includes a limiting plate 81 and a limiting groove 82. There are two limiting plates 81, and the two limiting plates 81 are fixedly sleeved on the outside of the first threaded rod 61. The two limiting plates 81 are movably arranged in the limiting groove 82, and the two limiting grooves 82 are respectively opened on the inner wall of the telescopic slot 2 and the outer wall of the handle 1, wherein the sides of the two limiting plates 81 close to each other are abutted against the side walls of the two limiting grooves 82. The limiting mechanism 8 in the present invention, the setting of the limiting mechanism 8 can play a limiting role on the first threaded rod 61. Specifically, through the limitation of the limiting mechanism 8, it is ensured that the first threaded rod 61 only has the ability to rotate, and does not have the ability to move in the horizontal direction.

In this embodiment, a locking mechanism 9 is provided on the handle 1, and the locking mechanism 9 includes a limiting rod 91 and a supporting spring 92. The limiting rod 91 is movably inserted in the limiting plate 81, and the supporting spring 92 is wound and connected to the outside of the limiting rod 91, and the two ends of the supporting spring 92 are respectively fixedly connected to the side walls of the limiting rod 91 and the side walls of the limiting plate 81, the limiting rod 91 is movably inserted in the limiting groove 94, and the limiting groove 94 is provided on the handle 1, and the end of the limiting rod 91 located outside the limiting groove 94 is fixedly connected with an elastic ring 93. The locking mechanism 9 in the present invention is provided for realizing the limiting locking of the position of the suture staple 4. Specifically, after the position of the suture staple 4 is adjusted, in order to prevent the suture staple 4 from moving relative to the handle 1, the locking mechanism 9 is provided in the present invention.

In this embodiment, a measuring mechanism 10 is provided on the handle 1, and the measuring mechanism 10 includes a first sensing contact 101 and a second sensing contact 102. The first sensing contact 101 and the second sensing contact 102 are abutted against each other, and the first sensing contact 101 is embedded in the limiting plate 81, and one end of the second sensing contact 102 away from the first sensing contact 101 is fixedly connected to one end of a connecting member 103, and the other end of the connecting member 103 is fixedly connected to a display 104, and the display 104 is embedded in the handle 1. In the present invention, a measuring mechanism 10 is provided, and the setting of the measuring mechanism 10 is used to monitor the adjustment distance of the suture staple 4. Specifically, the rotation distance of the limiting plate 81 will be transmitted to the display 104 through the combined structure of the first sensing contact 101, the second sensing contact 102 and the connecting member 103, so that the precise movement distance of the suture staple 4 can be obtained by reading and calculating the display 104.

In this embodiment, a conducting mechanism 11 is provided in the first adjusting mechanism 6, and the conducting mechanism 11 includes a No. 1 slot 111 and a connecting spring 112. The No. 1 slot 111 is provided on the twisting disk 63, and the first threaded rod 61 is movably inserted in the No. 1 slot 111. One end of the connecting spring 112 is fixedly connected to the first threaded rod 61, and the other end of the connecting spring 112 is fixedly connected to the side wall of the No. 2 slot 113. The No. 2 slot 113 is provided on the side wall of the No. 1 slot 111. The side wall of the No. 1 slot 111 is fixedly connected with a second electrode contact 115, and the first threaded rod 61 is fixedly connected with a first electrode contact 115 matching the second electrode contact 115. The electrode contact piece 114 and the conducting mechanism 11 are provided in the present invention. The conducting mechanism 11 is provided to realize the control of the display 104. Through the setting of the conducting mechanism 11, the display 104 can be automatically regulated, so that energy saving and consumption reduction can be achieved and the degree of automation of the equipment can be improved. Specifically, when the elastic ring 93 is hung on the screwing disk 63, the pulling force will cause the screwing disk 63 to move in the direction of the handle 1, so that the first electrode contact piece 114 and the second electrode contact piece 115 are connected in series circuit, and the display 104 is powered on and starts to work during the rotation of the limit plate 81.

Beneficial effects of the present invention:

The present invention improves the existing meniscus suture device structure. The improved meniscus suture device can retract the suture nail 4 into the handle 1, so that during the movement, the suture nail 4 can be prevented from falling and the user can be avoided from being injured during movement. In addition, the structural design of the present invention is reasonable, and the suture nail 4 can be easily pushed out of the handle 1.

The present invention provides a first adjustment mechanism 6, which is used to adjust the process of the suture staple 4 extending into or out of the telescopic slot 2. The first adjustment mechanism 6 has a reasonable structural design, which can achieve the effect of convenient operation during the adjustment process, and at the same time, improve the effect of accurate operation, ensuring that the suture staple 4 can be extended into or out of the telescopic slot 2 in a timely manner under the adjustment of the first adjustment mechanism 6.

The present invention provides a limiting mechanism 5, which is used to limit the movement of the mobile body 3. By adjusting the limit of the mobile body 3, it can ensure that the mobile body 3 can enter and exit the telescopic slot 2 along the horizontal direction, and at the same time, it can also position the position of the suture nail 4. Specifically, during the movement and suturing of the suture nail 4, medical errors caused by misoperation can be avoided under the role of positioning.

The present invention is provided with a second adjustment mechanism 7, which is used to assist the first adjustment mechanism 6, so as to achieve a more efficient effect on the insertion or extension of the suture staple 4, and ensure that when the cooperation between the first threaded rod 61 and the threaded groove 62 cannot adjust the movable body 3, the suture staple 4 can still be moved to the suture position through the action of the second adjustment mechanism 7, thereby achieving a treatment effect.

The limiting mechanism 8 in the present invention can limit the first threaded rod 61. Specifically, through the limiting of the limiting mechanism 8, it is ensured that the first threaded rod 61 only has the ability to rotate but not the ability to move in the horizontal direction.

The locking mechanism 9 in the present invention is provided to realize the limit locking of the position of the suture staple 4. Specifically, after the position of the suture staple 4 is adjusted, in order to prevent the suture staple 4 from moving relative to the handle 1, the locking mechanism 9 is provided in the present invention.

The present invention provides a measuring mechanism 10, which is used to monitor the adjustment distance of the suture staple 4. Specifically, the rotation distance of the limit plate 81 is transmitted to the display 104 through the combined structure of the first sensing contact 101, the second sensing contact 102 and the connecting member 103, so that the precise movement distance of the suture staple 4 can be obtained by reading and calculating on the display 104.

The present invention provides a conducting mechanism 11, and the conducting mechanism 11 is used to control the display 104. Through the setting of the conducting mechanism 11, the display 104 can be automatically regulated, which can not only achieve the effect of energy saving and consumption reduction, but also improve the degree of automation of the equipment. Specifically, when the elastic ring 93 is hung on the screwing disk 63, the pulling force will cause the screwing disk 63 to move in the direction of the handle 1, so that the first electrode contact piece 114 and the second electrode contact piece 115 are connected in series, and the display 104 is powered on and starts to work during the rotation of the limit plate 81.

The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims (6)

1. A meniscus suturing device, comprising a handle (1), characterized in that a telescopic slot (2) is provided on the handle (1), and a movable body (3) is movably provided in the telescopic slot (2), a suture nail (4) is provided at one end of the movable body (3) facing the opening of the telescopic slot (2), and a first adjusting mechanism (6) is provided on the handle (1) to drive the movable body (3) to move with the suture nail (4) in the telescopic slot (2); the first adjusting mechanism (6) comprises a first threaded rod (61) and a threaded groove (62), the first threaded rod (61) is threadedly inserted in the threaded groove (62), and the threaded groove (62) is provided at the movable body (3) and the movable body (3) is provided with a suture nail (4) at one end of the movable body (3) facing the opening of the telescopic slot (2). On the movable body (3), the first threaded rod (61) is movably plugged into the handle (1), and one end of the first threaded rod (61) located outside the threaded groove (62) is connected to a screwing disk (63); the handle (1) is provided with a second adjustment mechanism (7), the second adjustment mechanism (7) comprises a second threaded rod (71) and a threaded hole (72), one end of the second threaded rod (71) is fixedly connected to the side wall of the movable body (3), and the other end of the second threaded rod (71) is fixedly connected to a guide reset member (78), the free end of the guide reset member (78) is fixedly connected to the side wall of the telescopic groove (2), and the threaded hole (72) is fixedly connected to the side wall of the telescopic groove (2). ) is provided on the first gear (73), the second threaded rod (71) is threadedly inserted into the threaded hole (72), a support assembly is provided on the side wall of the first gear (73), and the first gear (73) is meshed with the second gear (74), the second gear (74) is fixedly sleeved outside the first threaded rod (61); the support assembly comprises a fixing ring (75), a limiting ring (76) and a fixing rod (77), the fixing ring (75) is fixedly connected to the side wall of the first gear (73), an annular groove is provided on the fixing ring (75), a limiting ring (76) is movably sleeved in the annular groove, and an outer ring of the limiting ring (76) is A fixing rod (77) is fixedly connected to the wall, and the fixing rod (77) is fixedly connected to the side wall of the telescopic slot (2); the guide reset member (78) comprises a guide reset rod (781), a guide reset cylinder (782) and a guide reset spring (783); the guide reset rod (781) is movably inserted in the guide reset cylinder (782), the guide reset spring (783) is externally wound and connected with the guide reset rod (781), one end of the guide reset spring (783) is fixedly connected to the side wall of the guide reset rod (781), and the other end of the guide reset spring (783) is fixedly connected to the outer side wall of the guide reset cylinder (782). 2. The meniscus suture device according to claim 1, characterized in that: a limiting mechanism (5) is arranged in the telescopic slot (2), and the limiting mechanism (5) comprises a limiting slide groove (51) and a limiting block (52), the limiting slide groove (51) is opened on the movable body (3), the limiting block (52) is slidably arranged in the limiting slide groove (51), and the limiting block (52) is fixedly connected to the side wall of the telescopic slot (2). 3. The meniscus suture device according to claim 2, characterized in that: a second limiting mechanism (8) is provided on the handle (1), and the second limiting mechanism (8) includes a limiting plate (81) and a limiting groove (82), and the number of the limiting plates (81) is two, and the two limiting plates (81) are fixedly sleeved outside the first threaded rod (61), and the two limiting plates (81) are movably arranged in the limiting groove (82), and the two limiting grooves (82) are respectively opened on the inner side wall of the telescopic slot (2) and the outer side wall of the handle (1), wherein the sides of the two limiting plates (81) close to each other are in contact with the side walls of the two limiting grooves (82). 4. The meniscus suture device according to claim 3, characterized in that: a locking mechanism (9) is provided on the handle (1), and the locking mechanism (9) comprises a limit rod (91) and a support spring (92), the limit rod (91) is movably inserted on the limit plate (81), the support spring (92) is wound and connected to the outside of the limit rod (91), and the two ends of the support spring (92) are respectively fixedly connected to the side wall of the limit rod (91) and the side wall of the limit plate (81), the limit rod (91) is movably inserted in the limit groove (94), and the limit groove (94) is opened on the handle (1), and the end of the limit rod (91) located outside the limit groove (94) is fixedly connected to an elastic ring (93). 5. The meniscus suture device according to claim 4, characterized in that: a measuring mechanism (10) is provided on the handle (1), and the measuring mechanism (10) comprises a first sensing contact (101) and a second sensing contact (102), the first sensing contact (101) and the second sensing contact (102) are in contact with each other, and the first sensing contact (101) is embedded in the limiting plate (81), and one end of the second sensing contact (102) away from the first sensing contact (101) is fixedly connected to one end of a connecting member (103), and the other end of the connecting member (103) is fixedly connected to a display (104), and the display (104) is embedded in the handle (1). 6. The meniscus suture device according to claim 2, characterized in that: a conduction mechanism (11) is arranged in the first adjustment mechanism (6), the conduction mechanism (11) comprises a No. 1 groove (111) and a connecting spring (112), the No. 1 groove (111) is arranged on the twisting disk (63), the first threaded rod (61) is movably inserted in the No. 1 groove (111), one end of the connecting spring (112) is fixedly connected to the first threaded rod (61), and the other end of the connecting spring (112) is fixedly connected to the side wall of the No. 2 groove (113), the No. 2 groove (113) is arranged on the side wall of the No. 1 groove (111), a second electrode contact (115) is fixedly connected to the side wall of the No. 1 groove (111), and a first electrode contact (114) matching the second electrode contact (115) is fixedly connected to the first threaded rod (61).