Meniscal suture system and methods of using the same

Abstract

The application provides a meniscus suture system and a method for using the same, which comprises a puncture needle assembly, a depth adjusting part and a pushing assembly; the puncture needle assembly comprises a puncture needle and a puncture needle outer tube, an outer wall of the puncture needle outer tube is provided with a depth limiting protrusion; the depth adjusting part comprises a depth limiting sleeve and a depth limiting groove, the puncture needle is movably penetrated through the depth limiting sleeve, the depth limiting groove is arranged on an inner wall of a tail end of the depth limiting sleeve, and the depth limiting protrusion is clamped into the depth limiting groove to limit the penetration depth of the puncture needle; the pushing assembly comprises a push rod, the push rod moves in the puncture needle to push the implant out of the puncture needle. The application can quickly and accurately adjust the penetration depth of the puncture needle into the meniscus, effectively prevents the meniscus from being injured due to the too large penetration depth of the puncture needle, or causes the operation to fail due to the fact that the puncture needle does not reach the target position at all, and does not have the problems of inaccurate clamping and easy displacement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a meniscus suturing system and a method of using the same. BACKGROUND

[0002] When people move, due to some non-standard actions or excessive force, the stress on the knee joint between the femur and the tibia is uneven, which causes the force of the femur on the meniscus to deviate, thereby easily causing the meniscus to tear and produce cracks. The emergence of the meniscus suturing body can suture the torn part with the original meniscus through surgery, thereby restoring the knee joint activity function.

[0003] When there is a tear in the posterior horn of the meniscus, medical personnel first puncture one side of the meniscus tear with the meniscus suturing body, then activate the first implant to hang on the posterior wall of the meniscus; after the first implant is successfully hung, the meniscus suturing body is taken out to puncture the other side of the meniscus tear again, the second implant is activated, and the second implant is also hung on the posterior wall of the meniscus; finally, the two implants are tightened by tightening the suture, and the meniscus is sutured.

[0004] The existing suturing device on the market has the following problems: 1. In order to prevent the puncture needle from penetrating too deeply and causing injury to the meniscus, or the puncture needle from not reaching the target position and causing surgical failure, the depth of the puncture needle penetrating the meniscus often needs to be limited and adjusted. The existing suturing device generally uses a elastic buckle to limit and adjust the depth, but the depth adjuster in the form of the buckle has the problem of inaccurate clamping and easy displacement; 2. The angle of the puncture needle tube cannot be adjusted as needed. In order to better find the suturing position, the medical staff needs to manually adjust the angle to find the appropriate position to puncture the meniscus during the operation.

[0005] Therefore, it is necessary to provide a new meniscus suturing system and a method of using the same to solve the above problems in the prior art. SUMMARY

[0006] The purpose of the present application is to provide a meniscus suturing system and a method of using the same, which can quickly and accurately adjust the depth of the puncture needle penetrating the meniscus, effectively prevent the puncture needle from penetrating too deeply and causing injury to the meniscus, or the puncture needle from not reaching the target position and causing surgical failure, and does not have the problem of inaccurate clamping and easy displacement.

[0007] To achieve the above purpose, the meniscus suturing system of the present application comprises a puncture needle assembly, a depth adjusting piece and a pushing assembly.

[0008] The puncture needle assembly comprises a puncture needle and a puncture needle outer tube, the puncture needle is a hollow structure, an implant is placed at the distal end of the puncture needle, the puncture needle outer tube is fixedly sleeved at the proximal end of the puncture needle, and the outer wall of the puncture needle outer tube is provided with a depth limiting protrusion;

[0009] The depth adjusting member comprises a depth limiting sleeve and a depth limiting groove, the puncture needle is movably penetrated through the depth limiting sleeve, the depth limiting groove is arranged on the inner wall of the tail end of the depth limiting sleeve, and the depth limiting protrusion is clamped into the depth limiting groove to limit the penetration depth of the puncture needle.

[0010] The pushing assembly comprises a push rod, the push rod is movably penetrated through the puncture needle, and the push rod moves in the puncture needle to push the implant out of the puncture needle.

[0011] The meniscus suturing system has the beneficial effects that the puncture needle outer tube is fixedly sleeved at the proximal end of the puncture needle, the outer wall of the puncture needle outer tube is provided with a depth limiting protrusion, the depth adjusting member comprises a depth limiting sleeve and a depth limiting groove, the puncture needle is movably penetrated through the depth limiting sleeve, the depth limiting groove is arranged on the inner wall of the tail end of the depth limiting sleeve, and the depth limiting protrusion is clamped into the depth limiting groove to limit the penetration depth of the puncture needle, that is, the depth limiting groove in the depth adjusting member cooperates with the depth limiting protrusion arranged on the outer wall of the puncture needle outer tube, so that the purpose of limiting the penetration depth of the puncture needle is achieved, the penetration depth of the puncture needle into the meniscus can be quickly and accurately adjusted, the meniscus is effectively prevented from being injured due to the too large penetration depth of the puncture needle, or the operation is prevented from failing due to the fact that the puncture needle does not reach the target position at all, and the problems of inaccurate clamping and easy displacement do not exist; meanwhile, the structure is simple, the puncture needle penetration depth adjusting mode is simple, convenient, effective, the operation experience of doctors is improved, the work efficiency of doctors is improved, and the operation risk is reduced.

[0012] Preferably, the depth limiting groove is provided with a plurality of depth limiting grooves, the plurality of depth limiting grooves are circumferentially arranged on the inner wall of the tail end of the depth limiting sleeve, and the lengths of the plurality of depth limiting grooves are different. Its beneficial effect is that the depth limiting protrusion can match the depth limiting grooves of different lengths to adjust the penetration depth of the puncture needle into the meniscus.

[0013] Preferably, the length of the depth limiting groove is 6-18mm. Its beneficial effect is that the length of the depth limiting groove is suitable for most meniscus injury suturing operations.

[0014] Preferably, the depth limiting groove is provided with N depth limiting grooves, and the lengths of the first to Nth depth limiting grooves increase by 2mm successively. Its beneficial effect is that the gear positions of the depth limiting grooves are reasonably arranged, and the depth limiting grooves are suitable for most meniscus injury suturing operations.

[0015] Preferably, the meniscus suture system further comprises a trigger assembly, the trigger assembly comprising a trigger trigger provided with a gear, the push assembly further comprising a push rod base fixedly connected with the push rod, the push rod base being provided with a rack engaged with the gear. Its beneficial effect lies in: through the engagement of the gear and the rack, the rotary motion of the trigger trigger is changed into the linear motion of the push assembly, so as to transmit the force when holding the trigger trigger to the push rod base, and realize the motion of the push rod in the puncture needle to push the implant out of the puncture needle.

[0016] Preferably, the meniscus suture system further comprises a trigger limit button, the trigger limit button comprising a limit protrusion, the trigger trigger being provided with a limit slot matched with the limit protrusion, and the limit protrusion and the limit slot cooperating to make the trigger trigger realize different rotation angles. Its beneficial effect lies in: the limit protrusion clamps the limit slot to limit the rotation angle of the trigger trigger, that is, when the limit protrusion and the limit slot are in contact, holding the trigger trigger to make the trigger trigger rotate by a first angle, so that the push rod pushes a first implant out of the puncture needle, and when the trigger limit button is pressed to make the limit protrusion and the limit slot separate and not in contact, holding the trigger trigger to make the trigger trigger rotate by a second angle, so that the push rod pushes a second implant placed together in the puncture needle and in a different position from the first implant out of the puncture needle, that is, the limit protrusion and the limit slot cooperate to make the trigger trigger realize different rotation angles, and then make the push rod move different strokes, so as to realize the smooth pushing of multiple implants out of the puncture needle.

[0017] Preferably, the meniscus suture system further comprises a hand-held assembly, the hand-held assembly comprising a trigger limit button mounting seat, the trigger limit button being arranged on the trigger limit button mounting seat, the trigger limit button mounting seat being provided with an annular boss, and the trigger limit button being provided with a gear recess matched with the annular boss, and when the limit protrusion and the limit slot are clamped, the gear recess is in contact with the annular boss. Its beneficial effect lies in: through the gear recess in contact with the annular boss, the limit protrusion is stably clamped in the limit slot, so as to ensure that when the limit protrusion and the limit slot are in contact, holding the trigger trigger can only make the trigger trigger rotate by a first angle to push a first implant out of the puncture needle with the push rod, and avoid the trigger trigger rotating too much to also push a second implant out of the puncture needle.

[0018] Preferably, the handheld assembly comprises a guide seat, the push rod base is provided with a guide groove, the guide groove is matched with the guide seat to make the push rod move linearly along the length direction of the puncture needle. Its beneficial effect lies in: ensuring the push rod to move linearly along the length direction of the puncture needle, and facilitating the stable movement of the push rod, thereby improving the success rate of surgery.

[0019] Preferably, the trigger assembly further comprises a resilient reset member, the resilient reset member is arranged on the trigger trigger, and the resilient reset member is used for resetting the trigger trigger. Its beneficial effect lies in: even if the gear returns to the position before rotation, it can realize the smooth pushing of multiple implants out of the puncture needle.

[0020] Preferably, the trigger trigger is provided with a through hole, the resilient reset member is a torsion spring, and the handheld assembly further comprises a mounting shaft, the mounting shaft penetrates the through hole and the torsion spring to fix the trigger assembly to the handheld assembly. Its beneficial effect lies in: fixing the trigger assembly to the handheld assembly, and the structure is compact, small in size, light in weight, and beneficial to the doctor to hold the meniscus suture system for surgery.

[0021] Preferably, the puncture needle assembly further comprises an angle adjusting member, the distal end of the puncture needle is provided with a curved portion, the angle adjusting member is fixedly arranged on the outer wall of the proximal end of the puncture needle, and the angle adjusting member is rotated to drive the puncture needle to rotate to adjust the orientation of the curved portion. Its beneficial effect lies in: the doctor can flexibly adjust the angle of the puncture needle according to the need to find the best suture position during surgery, improve the operation experience of the doctor, improve the work efficiency of the doctor, and reduce the risk of surgery.

[0022] Preferably, the angle adjusting member comprises a knob, the knob is fixedly arranged on the outer wall of the proximal end of the puncture needle, and the proximal end of the puncture needle is rotationally arranged on the handheld assembly. The knob is rotated to drive the puncture needle to rotate relative to the handheld assembly to adjust the orientation of the curved portion. Its beneficial effect lies in: maintaining the holding posture of the handheld assembly, rotating the knob to drive the puncture needle to rotate relative to the handheld assembly, thereby adjusting the angle of the curved portion of the puncture needle, that is, the holding posture of the handheld assembly does not need to be changed to adjust the angle of the puncture needle, which is simple, convenient and fast, and avoids medical accidents.

[0023] Preferably, the angle adjusting member further comprises a knob base and a locking member, the knob base is fixedly arranged on the handheld assembly and rotatably arranged on the outer wall of the proximal end of the puncture needle, the locking member comprises a locking structure and a locking adapting structure, the locking structure is arranged on the knob, the locking adapting structure is arranged on the knob base, and the locking structure and the locking adapting structure are locked to lock the knob on the knob base. Its beneficial effect lies in that after the angle of the puncture needle is adjusted, the knob can be locked on the knob base by the locking member, that is, the puncture needle is fixed, and the puncture needle remains at the angle, so that the angle of the puncture needle is prevented from being changed due to the misoperation of the knob.

[0024] Preferably, the locking structure comprises a compression spring and a ball bead fixedly connected with the compression spring, and the locking adapting structure is a indexing hole matched with the ball bead, and the ball bead is clamped into the indexing hole to lock the knob on the knob base. Its beneficial effect lies in that the ball bead is automatically clamped into the indexing hole by the elastic force of the compression spring, so that the puncture needle is fixed after the angle is adjusted, and when the knob is rotated again, the ball bead is separated from the indexing hole by the compression spring under the rotation force of the knob, so that the operation is simple and convenient, and the locking member has simple structure, strong locking force and high stability and safety.

[0025] Preferably, a plurality of indexing holes are arranged on the knob base and arranged on the acting surface of the knob base towards the ball bead in a circumferential direction, and the plurality of indexing holes are arranged at equal intervals. Its beneficial effect lies in that the ball bead is automatically clamped into the indexing hole by the elastic force of the compression spring, so that the puncture needle is fixed after the angle is adjusted, and when the knob is rotated again, the ball bead is separated from the indexing hole by the compression spring under the rotation force of the knob, and is clamped into another indexing hole after the knob is rotated by a corresponding angle, so that the puncture needle is adjusted and locked at multiple angles.

[0026] The method for using the meniscus suturing system comprises the following steps:

[0027] S1. According to the depth at which the puncture needle needs to be punctured, the depth adjusting member is rotated, so that the depth limiting convex part on the outer tube of the puncture needle is clamped into the depth limiting groove.

[0028] S2. The push rod is pushed to move in the puncture needle, so that the implant is pushed out of the puncture needle.

[0029] The method for using the meniscus suture system has the beneficial effects that: by step S1, according to the measured depth to which the puncture needle needs to puncture, the depth adjusting part is rotated, the depth limiting protrusion on the outer tube of the puncture needle is clamped into the depth limiting groove, that is, the depth limiting protrusion arranged on the outer wall of the outer tube of the puncture needle is matched with the depth limiting groove in the depth adjusting part, so that the purpose of limiting the puncture depth of the puncture needle is achieved, the puncture depth of the puncture needle into the meniscus can be quickly and accurately adjusted, the situation that the meniscus is injured due to the too large puncture depth of the puncture needle or the situation that the operation fails due to the fact that the puncture needle does not reach the target position at all is effectively prevented, and there is no problem of inaccurate clamping and easy displacement.

[0030] Preferably, between the step S1 and the step S2, there is further a step that: the angle adjusting part is rotated to drive the puncture needle to rotate and adjust the orientation of the curved part. The beneficial effect is that the doctor can flexibly adjust the angle of the puncture needle to find the best suture position during the operation, the operation experience of the doctor is improved, the work efficiency of the doctor is improved, and the operation risk is reduced.

[0031] Preferably, the step S2 includes:

[0032] S21, the trigger trigger is triggered, the trigger trigger is rotated by a first angle, the rack moves relative to the gear, the push rod base drives the push rod to move in the puncture needle, to push the first implant out of the puncture needle;

[0033] S22, after the limiting protrusion is separated from the limiting groove by pressing the trigger limiting button, the trigger trigger is triggered, the trigger trigger is rotated by a second angle, the rack moves relative to the gear, the push rod base drives the push rod to move in the puncture needle, to push the second implant out of the puncture needle. The beneficial effect is that the trigger trigger is matched with the limiting protrusion and the limiting groove to realize different rotation angles, and then the push rod moves different strokes, so that multiple implants are smoothly pushed out of the puncture needle. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a partial cross-sectional view of the meniscus suture system of the embodiment of the present application;

[0035] Figure 2 It is a partial cross-sectional view of the meniscus suture system of the embodiment of the present application; Figure 1 It is a partial cross-sectional view of the meniscus suture system of the embodiment of the present application;

[0036] Figure 3 It is a partial cross-sectional view of the meniscus suture system of the embodiment of the present application; Figure 1Another perspective view of the internal assembly of the meniscal suture system shown;

[0037] Figure 4 For Figure 1 A perspective view of the implant placement in the flexion of the meniscal suture system shown;

[0038] Figure 5 For Figure 1 A perspective view of the depth adjustment in the meniscal suture system shown;

[0039] Figure 6 For Figure 1 A perspective view of the assembly of the piercing needle assembly in the meniscal suture system shown Figure 1 ;

[0040] Figure 7 For Figure 1 A perspective view of the assembly of the piercing needle assembly in the meniscal suture system shown Figure 2 ;

[0041] Figure 8 For Figure 1 A perspective view of the hand-held assembly in the meniscal suture system shown;

[0042] Figure 9 For Figure 1 A perspective view of the push assembly in the meniscal suture system shown;

[0043] Figure 10 For Figure 1 A perspective view of the trigger assembly in the meniscal suture system shown;

[0044] Figure 11 For Figure 1 A perspective view of the trigger limit button in the meniscal suture system shown;

[0045] Figure 12 For Figure 1 A perspective view of the assembly of the trigger limit button and the hand-held assembly in the meniscal suture system shown;

[0046] Figure 13 For Figure 12 A perspective view of the assembly of the trigger limit button and the hand-held assembly in the meniscal suture system shown; DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, but does not exclude other elements or objects.

[0048] To overcome the problems existing in the prior art, the present invention provides a meniscus suturing system and its usage method, which can quickly and accurately adjust the depth of the puncture needle into the meniscus, effectively preventing the meniscus from being injured due to excessive puncture depth, or the surgery from failing to reach the target position due to the puncture needle not reaching the target position, and there is no problem of inaccurate positioning or easy displacement.

[0049] Figure 1 This is a partial cross-sectional schematic diagram of the meniscus suture system according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the internal assembly of the meniscus suture system shown. Figure 3 for Figure 1 A schematic diagram of the internal assembly of the meniscus suture system from another angle; Figure 4 for Figure 1 A schematic diagram showing the placement of the implant in the bend of the meniscus suture system; Figure 5 for Figure 1 A schematic diagram of the depth adjustment component in the meniscus suture system shown; Figure 6 for Figure 1 The diagram shows the assembly of the puncture needle assembly in the meniscus suture system. Figure 1 ; Figure 7 for Figure 1 The diagram shows the assembly of the puncture needle assembly in the meniscus suture system. Figure 2 .

[0050] In some embodiments of the present invention, reference is made to Figures 1 to 7The meniscus suture system comprises a puncture needle assembly 1, a pushing assembly 2 and a depth adjusting piece 3; the puncture needle assembly 1 comprises a puncture needle 11 and a puncture needle outer tube 12, the puncture needle 11 is a hollow structure, an implant 4 is arranged at the distal end of the puncture needle 11, the puncture needle outer tube 12 is fixedly sleeved at the proximal end of the puncture needle 11, and the outer wall of the puncture needle outer tube 12 is provided with a depth limiting protrusion 121; the depth adjusting piece 3 comprises a depth limiting sleeve 31 and a depth limiting groove 32, the puncture needle 11 is movably penetrated through the depth limiting sleeve 31, the depth limiting groove 32 is arranged on the inner wall of the tail end of the depth limiting sleeve 31, and the depth limiting protrusion 121 is clamped into the depth limiting groove 32 to limit the penetration depth of the puncture needle 11; the pushing assembly 2 comprises a push rod 21, the push rod 21 is movably penetrated through the puncture needle 11, and the push rod 21 moves in the puncture needle 11 to push the implant 4 out of the puncture needle 11.

[0051] Specifically, the puncture needle outer tube 12 is fixedly sleeved at the proximal end of the puncture needle 11, the outer wall of the puncture needle outer tube 12 is provided with a depth limiting protrusion 121, the depth adjusting piece 3 comprises a depth limiting sleeve 31 and a depth limiting groove 32, the puncture needle 11 is movably penetrated through the depth limiting sleeve 31, the depth limiting groove 32 is arranged on the inner wall of the tail end of the depth limiting sleeve 31, and the depth limiting protrusion 121 is clamped into the depth limiting groove 32 to limit the penetration depth of the puncture needle 11, that is, the depth limiting groove 32 in the depth adjusting piece 3 cooperates with the depth limiting protrusion 121 arranged on the outer wall of the puncture needle outer tube 12, so that the purpose of limiting the penetration depth of the puncture needle 11 is achieved, the penetration depth of the puncture needle 11 into the meniscus can be quickly and accurately adjusted, the problem that the meniscus is injured due to the too large penetration depth of the puncture needle 11 or the operation fails due to the fact that the puncture needle does not reach the target position at all is effectively prevented, and the problem of inaccurate clamping and easy displacement does not exist; meanwhile, the structure is simple, the penetration depth adjusting mode of the puncture needle 11 is simple, convenient, effective, the operation experience of doctors is improved, the work efficiency of doctors is improved, and the operation risk is reduced.

[0052] In some embodiments of the present application, Figure 5 The depth limiting groove 32 is provided with a plurality of depth limiting grooves 32, the plurality of depth limiting grooves 32 are circumferentially arranged on the inner wall of the tail end of the depth limiting sleeve 31, and the lengths of the plurality of depth limiting grooves 32 are different. The depth limiting protrusion 121 can match the depth limiting grooves 32 with different lengths to adjust the penetration depth of the puncture needle 11 into the meniscus.

[0053] In some embodiments of the present application, the length of the depth limiting groove is 6-18 mm. The length of the depth limiting groove is suitable for most meniscus injury suture operations.

[0054] In some embodiments of the present application, the depth-limiting grooves are provided with N, and the length from the first depth-limiting groove to the Nth depth-limiting groove increases by 2mm successively. The gear setting of the depth-limiting grooves is reasonable and suitable for most meniscus injury suture operations.

[0055] In some embodiments of the present application, referring to Figures 1 to 4 , the puncture needle assembly 1 further comprises an angle adjusting member (not labeled in the figure), the distal end of the puncture needle 11 is provided with a curved portion 111, the angle adjusting member (not labeled in the figure) is fixedly arranged on the outer wall of the proximal end of the puncture needle 11, and the angle adjusting member (not labeled in the figure) is rotated to drive the puncture needle 11 to rotate to adjust the orientation of the curved portion 111. During the operation, the doctor can flexibly adjust the angle of the puncture needle 11 according to the needs to find the best suture position, improve the operation experience of the doctor, improve the work efficiency of the doctor, and reduce the operation risk.

[0056] In some embodiments of the present application, the curved portion 111 of the puncture needle 11 is curved, that is, an included angle is formed between the curved portion 111 and the main body of the puncture needle 11, so that the angle of the puncture needle 11 can be flexibly adjusted to find the best suture position.

[0057] In some embodiments of the present application, referring to Figure 1 and Figure 4 , the implant 4 is one or more, which are connected together by the through holes 41 of the suture (not shown in the figure) to ensure the connection between the plurality of implants 4. Specifically, the implant is used for long-term implantation in the human body to fix the injured meniscus.

[0058] In some embodiments of the present application, referring to Figures 1 to 4 , Figure 6 and Figure 7 , the meniscus suture system further comprises a handheld assembly 5, the angle adjusting member (not labeled in the figure) comprises a knob 13, the knob 13 is fixedly arranged on the outer wall of the proximal end of the puncture needle 11, the proximal end of the puncture needle 11 is rotationally arranged with the handheld assembly 5, the knob 13 is rotated to drive the puncture needle 11 to rotate relative to the handheld assembly 5 to adjust the orientation of the curved portion 111. By rotating the knob 13 to drive the puncture needle 11 to rotate relative to the handheld assembly 5, the angle adjustment of the curved portion 111 in the puncture needle 11 is realized, that is, the adjustment of the angle of the puncture needle 11 can be realized without changing the holding posture of the handheld assembly 5, which is simple, convenient and fast, and avoids medical accidents.

[0059] In some embodiments of the present application, referring to Figures 1 to 3 , Figure 6 and Figure 7The angle adjusting member (not shown in the figure) further comprises a knob base 14 and a locking member (not shown in the figure), the knob base 14 is fixedly arranged on the handheld assembly 5 and rotationally arranged on the outer wall of the proximal end of the puncture needle 11, the knob 13 is partially sleeved on the knob base 14, the locking member (not shown in the figure) comprises a locking structure (not shown in the figure) and a locking adapting structure (not shown in the figure), the locking structure (not shown in the figure) is arranged on the knob 13, the locking adapting structure (not shown in the figure) is arranged on the knob base 14, and the locking structure (not shown in the figure) and the locking adapting structure (not shown in the figure) are locked in cooperation to lock the knob 13 on the knob base 14. After the angle of the puncture needle 11 is adjusted, the knob 13 can be locked on the knob base 14 through the locking member, that is, the puncture needle 11 is fixed, so that the puncture needle 11 remains at the angle, thereby avoiding the change of the angle of the puncture needle 11 caused by the misoperation of the knob 13.

[0060] In some embodiments of the present application, referring to Figure 6 and Figure 7 The locking structure (not shown in the figure) comprises a compression spring 15 and a ball 16 fixedly connected with the compression spring 15, the locking adapting structure (not shown in the figure) is a indexing hole 17 adapted to the ball 16, and the ball 16 is clamped into the indexing hole 17 to lock the knob 13 on the knob base 14. The ball 16 is automatically clamped into the indexing hole 17 by the elastic force of the compression spring 15, thereby realizing the fixation of the puncture needle 11 after the angle adjustment, and when the knob 13 is rotated again, the ball 16 is separated from the indexing hole 17 by compressing the compression spring 15 with the rotating force of the knob 13, so that the operation is simple and convenient, and the locking member has simple structure, strong locking force and stable safety.

[0061] In some embodiments of the present application, referring to Figure 6 and Figure 7 The indexing hole 17 is provided with a plurality of indexing holes 17, the plurality of indexing holes 17 are circumferentially arranged on the acting surface of the knob base 14 towards the ball 16, and the plurality of indexing holes 17 are arranged at equal intervals. The ball 16 is automatically clamped into the indexing hole 17 by the elastic force of the compression spring 15, thereby realizing the fixation of the puncture needle 11 after the angle adjustment, and when the knob 13 is rotated again, the ball 16 is separated from the indexing hole 17 by compressing the compression spring 15 with the rotating force of the knob 13, and is clamped into another indexing hole 17 after the knob 13 is rotated by a corresponding angle, so that the puncture needle 11 realizes multi-angle adjustment and locking.

[0062] In some embodiments of the present application, referring to Figure 6 and Figure 7The puncture needle outer tube 12 is fixedly sleeved on the proximal end of the puncture needle 11, and the two cannot rotate relative to each other. The knob base 14 is movably sleeved on the puncture needle outer tube 12 and is fixedly arranged with the handheld assembly 5. Part of the knob 13 is fixedly sleeved on the puncture needle outer tube 12, and another part of the knob 13 is movably sleeved on the knob base 14, that is, the knob 13 is fixedly arranged with the puncture needle outer tube 12, and the knob 13 is rotatably arranged with the knob base 14. The puncture needle outer tube 12 is further provided with a clamping groove 122, and the knob 13 is provided with a boss 131 and a compression spring mounting hole 132. The boss 131 is matched with the clamping groove 122, so that the knob 13 is partially sleeved on the puncture needle outer tube 12, and the knob 13 and the puncture needle outer tube 12 are fixedly connected through the clamping of the boss 131 and the clamping groove 122, so that the knob 13 and the puncture needle outer tube 12 cannot move relative to each other. The compression spring 15 and the ball 16 are installed in the compression spring mounting hole 132.

[0063] In some embodiments of the present application, the handheld assembly 5 is in a gun type structure, but is not limited to the gun type structure, such as a pen type structure.

[0064] Figure 8 For Figure 1 The schematic diagram of the handheld assembly in the meniscus suture system shown in FIG. 1.

[0065] In some embodiments of the present application, referring to Figure 8 The handheld assembly 5 is in a pistol shape structure, and the handheld assembly 5 includes a left handle 51 and a right handle 52. The left handle 51 and the right handle 52 are fixed by clamping or screwing.

[0066] In some embodiments of the present application, referring to Figures 1 to 3 , Figures 6 to 8The knob base 14 comprises a fixing groove 141. The puncture needle outer tube 12 is also provided with a mounting groove 123. The left handle 51 comprises a knob base left mounting part 511 and a puncture needle outer tube left mounting seat 512, and the right handle 52 comprises a knob base right mounting part 521 and a puncture needle outer tube right mounting seat 522. The knob base left mounting part 511 and the knob base right mounting part 521 form a knob base mounting part (not shown in the figure), which is clamped and fixed with the fixing groove 141, so that the knob base 14 is fixedly arranged with the handheld assembly 5. The puncture needle outer tube left mounting seat 512 and the puncture needle outer tube right mounting seat 522 respectively comprise a left mounting seat groove 5121 and a right mounting seat groove 5221, which form a puncture needle outer tube mounting part (not shown in the figure), which is rotationally arranged with the mounting groove 123, so that the puncture needle outer tube 12 is rotationally arranged with the handheld assembly 5. The knob base 14 is movably arranged on the puncture needle outer tube 12, so that the puncture needle 11 rotates relative to the handheld assembly 5, so as to realize the angle adjustment of the curved part 111 of the puncture needle 11. That is, the angle adjustment of the puncture needle 11 can be realized without changing the holding posture of the handheld assembly 5, which is simple, convenient and fast, and avoids medical accidents.

[0067] Figure 9 For Figure 1 A schematic view of a pushing assembly in the meniscal suture system shown in Figure 10 A schematic view of a triggering assembly in the meniscal suture system shown in Figure 1 A schematic view of a triggering assembly in the meniscal suture system shown in

[0068] In some embodiments of the present application, with reference to Figure 9 and Figure 10 The triggering assembly 6 comprises a triggering trigger 61, which is provided with a gear 611. The pushing assembly 2 further comprises a push rod base 22, which is fixedly connected with the push rod 21 and is provided with a gear rack 221 engaged with the gear 611. Through the engagement of the gear 611 and the gear rack 221, the rotary motion of the triggering trigger 61 is changed into the linear motion of the pushing assembly 2, so that the force when holding the triggering trigger 61 is transmitted to the push rod base 22, and the push rod 21 is pushed to move in the puncture needle 11 to push the implant 4 out of the puncture needle 11.

[0069] In some embodiments of the present application, with reference to Figure 8 and Figure 9The handheld component 5 includes a guide seat (not shown in the figure), and the push rod base 22 is provided with a guide groove 222. The guide groove 222 is adapted to the guide seat (not shown in the figure) so that the push rod 21 can move linearly along the length direction of the puncture needle 11. This ensures that the push rod 21 moves linearly within the puncture needle 11 along the length direction of the puncture needle 11, and also helps to make the movement of the push rod 21 stable and prevent it from shaking, thereby improving the success rate of the surgery.

[0070] In some embodiments of the present invention, reference is made to Figure 8 and Figure 9 The guide seat (not shown in the figure) includes a left guide seat 513 and a right guide seat 523. The guide seat 513 and the right guide seat 523 cooperate to form a guide rail for the guide groove 222 to move.

[0071] Figure 11 for Figure 1 A schematic diagram of the trigger limit button in the meniscus suture system shown; Figure 12 for Figure 1 The diagram shows the assembly of the trigger limit button and the handheld component in the meniscus suture system. Figure 13 for Figure 12 A magnified view of part A shown in the diagram.

[0072] In some embodiments of the present invention, reference is made to Figures 1 to 4 , Figures 10 to 13 The meniscus suturing system also includes a trigger limit button 7, which includes a limit protrusion 71. The trigger trigger 61 has a limit groove 62 that matches the limit protrusion 71. The limit protrusion 71 and the limit groove 62 cooperate to allow the trigger trigger 61 to achieve different rotation angles. The limit protrusion 71 engages with the limit groove 62 to limit the rotation angle of the trigger trigger 61. That is, when the limit protrusion 71 and the limit groove 62 are in contact, holding the trigger trigger 61 will rotate the trigger trigger 61 by a first angle, thereby causing the push rod 21 to push the first implant (not shown in the figure) out of the puncture needle 11. When the trigger limit button 7 is pressed, causing the limit protrusion 71 to separate from the limit groove 62, holding the trigger trigger 61 will allow the trigger trigger 61 to rotate by a first angle. The trigger 61 is rotated at a second angle, causing the push rod 21 to push out the second implant (not shown in the figure), which is placed inside the puncture needle 11 and is in a different position from the first implant (not shown in the figure). That is, the limiting protrusion 71 cooperates with the limiting groove 62 to enable the trigger 61 to achieve different rotation angles, thereby causing the push rod 21 to move different strokes, thus realizing the smooth ejection of multiple implants 4 from the puncture needle 11.

[0073] In some embodiments of the present application, referring to Figure 8 , Figures 10 to 13 , the handheld assembly 5 comprises a trigger limiting button mounting seat (not shown in the figure), the trigger limiting button 7 is arranged on the trigger limiting button mounting seat (not shown in the figure), and the trigger limiting button mounting seat (not shown in the figure) is provided with an annular boss 514. The trigger limiting button 7 is provided with a gear recess 72 matched with the annular boss 514. When the limiting protruding part 71 is clamped with the limiting groove 62, the gear recess 72 abuts against the annular boss 514. By abutting the gear recess 72 against the annular boss 514, the limiting protruding part 71 is stably clamped in the limiting groove 62, so that when the limiting protruding part 71 abuts against the limiting groove 62, only the first angle of the trigger trigger 61 can be rotated to push the push rod 21 to push the first implant (not shown in the figure) out of the puncture needle 11, avoiding the second implant (not shown in the figure) being pushed out of the puncture needle 11 together with the trigger trigger 61.

[0074] In some embodiments of the present application, referring to Figure 8 , Figures 10 to 13 , the trigger limiting button mounting seat (not shown in the figure) comprises a trigger limiting button mounting hole 515 and a trigger limiting button guide slot 524. The trigger limiting button mounting hole 515 is arranged on the left handle 51, the trigger limiting button guide slot 524 is arranged on the right handle 52, and the annular boss 514 is arranged in the trigger limiting button mounting hole 515. The trigger limiting button 7 is provided with a pressing part 73. When the limiting protruding part 71 abuts against the limiting groove 62, the pressing part 73 is exposed outside the right handle 52 of the handheld assembly 5, and the gear recess 72 abuts against the annular boss 514. When the trigger limiting button 7 is pressed, that is, the pressing part 73 exposed outside the right handle 52 is pressed, the pressing part 73 abuts against the annular boss 514, and the gear recess 72 passes through the annular boss 514, so that the limiting protruding part 71 is separated from the limiting groove 62.

[0075] In some embodiments of the present application, the trigger assembly further comprises a rebounding reset member arranged on the trigger trigger, and the rebounding reset member is used for rebounding and resetting the trigger trigger. Even if the gear returns to the position before rotation, it can be realized that the multiple implants are smoothly pushed out of the puncture needle.

[0076] In some embodiments of the present application, referring to Figure 8 and Figure 10The trigger 61 is provided with a through hole 612, the resilient reset member is a torsion spring 63, the handheld assembly 5 further comprises a mounting shaft 525, the mounting shaft 525 penetrates the through hole 612 and the torsion spring 63 to fix the trigger assembly 6 to the handheld assembly 5. Thus, the trigger assembly 6 is fixed to the handheld assembly 5, the structure is compact, the volume is small, the overall weight is light, and the surgeon can hold the meniscus suturing system to perform surgery.

[0077] In some embodiments of the present application, referring to Figure 8 and Figure 10 The mounting shaft 525 is arranged on the right handle 52, the left handle 51 is provided with a matching hole 516 for the mounting shaft 525 to penetrate, and the mounting shaft 525 penetrates the through hole 612 and the matching hole 516 to fix the trigger 61 to the handheld assembly 5.

[0078] In some embodiments of the present application, referring to Figure 8 and Figure 10 The right handle 52 is further provided with a torsion spring mounting boss 526 surrounding the mounting shaft 525. The trigger 61 is provided with a torsion spring accommodating groove 613, the torsion spring 63 is mounted in the torsion spring accommodating groove 613 and abuts against the torsion spring mounting boss 526, thereby achieving the resilient reset of the trigger 61.

[0079] The method for using the meniscus suturing system comprises the following steps:

[0080] S1, according to the depth at which the puncture needle needs to puncture, rotate the depth adjusting member to make the depth limiting protruding part on the outer tube of the puncture needle clamped into the depth limiting groove;

[0081] S2, push the push rod to move in the puncture needle to push the implant out of the puncture needle.

[0082] Specifically, according to the depth at which the puncture needle needs to puncture, rotate the depth adjusting member to make the depth limiting protruding part on the outer tube of the puncture needle clamped into the depth limiting groove in step S1, that is, the depth limiting protruding part arranged on the outer wall of the outer tube of the puncture needle cooperates with the depth limiting groove in the depth adjusting member, so that the purpose of limiting the puncture depth of the puncture needle is achieved, the puncture depth of the puncture needle into the meniscus can be quickly and accurately adjusted, the problem that the puncture needle is too deep to cause injury to the meniscus or the puncture needle does not reach the target position to cause surgery failure is effectively prevented, and the problem of inaccurate clamping and easy displacement is eliminated. The puncture depth adjusting mode is simple, convenient and effective, improves the surgical experience of the doctor, improves the work efficiency of the doctor, and reduces the risk of surgery.

[0083] In some embodiments of the present application, between the step S1 and the step S2, there is further a step of rotating the angle adjusting member to drive the puncture needle to rotate and adjust the orientation of the curved portion. This allows the doctor to flexibly adjust the angle of the puncture needle during the operation to find the optimal suture position, thus improving the operation experience of the doctor, increasing the work efficiency of the doctor, and reducing the operation risk.

[0084] In some embodiments of the present application, the step S2 comprises:

[0085] S21, triggering the trigger trigger, rotating the trigger trigger by a first angle, the rack moving relative to the gear, the push rod base driving the push rod to move in the puncture needle to push out the first implant from the puncture needle;

[0086] S22, after pressing the trigger limit button to separate the limit protrusion from the limit groove, triggering the trigger trigger, rotating the trigger trigger by a second angle, the rack moving relative to the gear, the push rod base driving the push rod to move in the puncture needle to push out the second implant from the puncture needle. The limit protrusion cooperates with the limit groove to make the trigger trigger rotate by different angles, so that the push rod moves by different strokes, thereby successfully pushing out multiple implants from the puncture needle.

[0087] In some specific embodiments of the present application, the use method of the meniscus suture system for meniscus suture comprises the steps of:

[0088] The initial position of the trigger limit button in the meniscus suture system is not pressed, and the trigger trigger is limited to rotate within a smaller angle range after being triggered;

[0089] When suturing the meniscus, first, according to the damage condition of the meniscus, the depth of the puncture needle required to puncture is measured to adjust the length of the depth limiting protrusion in the outer tube of the puncture needle to be clamped into the depth limiting groove of the depth adjusting member;

[0090] Put the puncture needle in the meniscus suture system into the meniscus damage site through the pre-established channel, and find the appropriate suture position by rotating the angle adjusting member;

[0091] After the position is determined, the trigger trigger is cocked to move the push assembly forward, thereby triggering the first implant to be pushed out of the puncture needle;

[0092] After the first implant is implanted into the meniscus, the trigger trigger is automatically reset; the trigger limit button is pressed, and the trigger trigger is cocked again to move the push assembly forward again, thereby triggering the second implant to be pushed out of the puncture needle.

[0093] While the embodiments of the application have been illustrated and described in detail, it will be readily apparent to those skilled in the art that various modifications and changes can be made to the embodiments without departing from the scope of the application as described in the claims. It is therefore intended that the application not be limited to the exact embodiments described herein, but that the application can also include all such modifications and changes as fall within the scope of the claimed application. Moreover, the application illustratively described herein suitably can be practiced in the absence of any element or step which is not specifically disclosed herein.

Claims

1. A meniscus suture system, characterized in that, include: A puncture needle assembly includes a puncture needle and a puncture needle outer tube. The puncture needle has a hollow structure, and an implant is placed at the distal end of the puncture needle. The puncture needle outer tube is fixedly sleeved on the proximal end of the puncture needle, and the outer wall of the puncture needle outer tube has a depth-limiting protrusion. A depth adjustment component includes a depth limiting sleeve and a depth limiting groove. The puncture needle movably passes through the depth limiting sleeve, and the depth limiting groove is disposed on the inner wall of the tail end of the depth limiting sleeve. The depth limiting protrusion is engaged with the depth limiting groove to limit the insertion depth of the puncture needle. A pushing component includes a push rod that is movably inserted through the puncture needle and moves within the puncture needle to eject the implant from the puncture needle; Triggering component, the triggering component including a trigger; A trigger limit button is provided, the trigger limit button includes a limit protrusion, and the trigger trigger is provided with a limit groove that is adapted to the limit protrusion. The limit protrusion and the limit groove cooperate to enable the trigger trigger to achieve different rotation angles. Trigger the trigger to rotate the trigger by a first angle to eject the first implant from the puncture needle; The trigger is activated, causing it to rotate at a second angle to eject the second implant from the puncture needle.

2. The meniscus suture system according to claim 1, characterized in that, The depth-limiting groove is provided in several parts, and the several depth-limiting grooves are circumferentially arranged on the inner wall of the tail end of the depth-limiting sleeve, and the lengths of the several depth-limiting grooves are different.

3. The meniscus suture system according to claim 2, characterized in that, The length of the depth-limiting groove is 6-18mm.

4. The meniscus suture system according to claim 2 or 3, characterized in that, The depth-limiting groove is provided in N parts, and the length of the depth-limiting groove increases by 2mm from the first depth-limiting groove to the Nth depth-limiting groove.

5. The meniscus suture system according to claim 1, characterized in that, The trigger is equipped with a gear, and the push assembly further includes a push rod base, which is fixedly connected to the push rod. The push rod base is equipped with a rack that meshes with the gear.

6. The meniscus suture system according to claim 1, characterized in that, It also includes a handheld component, which includes a trigger limit button mounting base. The trigger limit button is disposed on the trigger limit button mounting base. The trigger limit button mounting base has an annular boss. The trigger limit button has a stop groove that matches the annular boss. When the stop protrusion engages with the stop groove, the stop groove abuts against the annular boss.

7. The meniscus suture system according to claim 6, characterized in that, The handheld assembly includes a guide seat, and the push rod base is provided with a guide groove. The guide groove is adapted to the guide seat so that the push rod moves linearly along the length direction of the puncture needle.

8. The meniscus suture system according to claim 6, characterized in that, The triggering component further includes a spring-back reset member disposed on the trigger trigger, the spring-back reset member being used to cause the trigger trigger to spring back and reset.

9. The meniscus suture system according to claim 8, characterized in that, The trigger is provided with a through hole, the rebound reset element is a torsion spring, and the handheld assembly also includes a mounting shaft that passes through the through hole and the torsion spring to fix the trigger assembly to the handheld assembly.

10. The meniscus suture system according to claim 1, characterized in that, The puncture needle assembly also includes an angle adjustment component. The distal end of the puncture needle is provided with a curved portion. The angle adjustment component is fixedly disposed on the outer wall of the proximal end of the puncture needle, and the angle adjustment component rotates to drive the puncture needle to rotate, thereby adjusting the orientation of the curved portion.

11. The meniscus suture system according to claim 10, characterized in that, It also includes a handheld component, the angle adjustment component including a knob, the knob being fixedly disposed on the outer wall of the proximal end of the puncture needle, the proximal end of the puncture needle being rotatably disposed with the handheld component, the knob being rotated to drive the puncture needle to rotate relative to the handheld component to adjust the orientation of the curved portion.

12. The meniscus suture system according to claim 11, characterized in that, The angle adjustment component further includes a knob base and a locking component. The knob base is fixedly disposed on the handheld assembly and rotatably disposed on the outer wall of the proximal end of the puncture needle. The locking component includes a locking structure and a locking adapter structure. The locking structure is disposed on the knob, and the locking adapter structure is disposed on the knob base. The locking structure and the locking adapter structure cooperate to lock the knob to the knob base.

13. The meniscus suture system according to claim 12, characterized in that, The lock structure includes a compression spring and a ball joint that is fixed to the compression spring. The lock adapter structure is a graduated hole that is adapted to the ball joint. The ball joint is inserted into the graduated hole to lock the knob to the knob base.

14. The meniscus suture system according to claim 13, characterized in that, The indexing holes are provided in a plurality of manner, and the plurality of indexing holes are circumferentially arranged on the working surface of the knob base facing the ball, and the plurality of indexing holes are arranged at equal intervals.

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