CN112168251B - Meniscus stitching instrument - Google Patents

Abstract

The invention discloses a meniscus suture device, which comprises: the handheld assembly is provided with a driving assembly at one end; the needle tube assembly is arranged on the hand holding assembly and penetrates from one end of the hand holding assembly, where the driving assembly is arranged; the needle tube assembly comprises an inner needle rod and an outer tube sleeved on the inner needle rod, the inner needle rod is fixedly connected with the driving assembly, and the driving device drives the inner needle rod to slide in the outer tube; the implantation baffle comprises a first sewing baffle and a second sewing baffle, and the first sewing baffle is connected with the second sewing baffle through a suture line; the first sewing baffle and the second sewing baffle are sequentially arranged at one end of the outer tube far away from the hand holding assembly. According to the meniscus stitching instrument, the first stitching baffle and the second stitching baffle are implanted into one side of the meniscus, so that stitching of a meniscus crack is realized, the structure is simple, the cost is low, the operation is convenient and quick, the equipment cost is reduced, the operation process is simplified, and the operation time is shortened.

Description

A meniscus suture device

Technical Field

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

Background Art

The meniscus is a semilunar cartilage located between the femur and tibia of the knee joint. Its edges are thicker and closely connected to the joint capsule, while the center is thinner and free. A normal meniscus increases the concavity of the tibial condyle and cushions the medial and lateral condyles of the femur to increase the stability of the joint and to act as a buffer and shock absorber.

Meniscus injury is one of the common sports injuries, and is more common in people who exercise excessively or do heavy physical labor. Common meniscus injuries are meniscus tears caused by twisting external force, which manifests as severe knee pain, joint swelling, and limited movement. Meniscus suture is currently the most ideal surgical method for treating meniscus injuries, but existing meniscus suture devices are complex in structure, expensive, and inconvenient to operate.

Summary of the invention

The main technical problem solved by the present invention is to provide a meniscus suture device, which solves the problems of complex structure and inconvenient operation of the meniscus suture device in the prior art.

In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a meniscus suture device, which includes: a hand-holding assembly, a driving assembly is arranged at one end of the hand-holding assembly; a needle tube assembly, the needle tube assembly is installed on the hand-holding assembly, and penetrates from the end of the hand-holding assembly where the driving assembly is arranged; the needle tube assembly includes an inner needle rod and an outer tube sleeved on the inner needle rod, the inner needle rod is fixedly connected to the driving assembly, and the driving device drives the inner needle rod to slide in the outer tube; an implantation baffle, the implantation baffle includes a first suture baffle and a second suture baffle, the first suture baffle and the second suture baffle are connected by a suture line; the first suture baffle and the second suture baffle are sequentially placed at one end of the outer tube away from the hand-holding assembly.

Among them, the outer tube includes an outer needle tube, the outer needle tube is sleeved on the inner needle rod, the inner needle rod is slidably connected to the outer needle tube, a support tube is sleeved on the outer needle tube, one end of the support tube is fixedly connected to the outer needle tube through a reducer, and a puncture sheath is sleeved on the support tube.

Among them, the driving assembly includes a lead tube, one end of which is fixedly connected to an outer needle seat, and the other end is sleeved with a pushing handle, and the end of the lead tube passes through the pushing handle and is fixedly connected to the hand-held assembly. A lead groove is provided on the lead tube, and a spring needle matching the lead groove is provided on the pushing handle.

Among them, the lead groove includes a first groove section, a second groove section, a third groove section, a fourth groove section, a fifth groove section and a sixth groove section connected in sequence, an end of the first groove section away from the second groove section is connected to an end of the sixth groove section away from the fifth groove section, two adjacent sections of the first groove section, the second groove section, the third groove section, the fourth groove section, the fifth groove section and the sixth groove section form a preset angle, and the second groove section and the fifth groove section are spaced apart and parallel to each other.

Among them, the bottom surface of the first section groove and/or the fifth section groove is inclined, and the bottom surface of the first section groove close to the second section groove is higher than the bottom surface of the first section groove close to the sixth section groove, and the bottom surface of the fifth section groove close to the sixth section groove is higher than the bottom surface of the fifth section groove close to the fourth section groove.

Among them, a sheath seat is provided in the outer needle seat, the sheath seat is fixedly connected to the puncture sheath, and a sliding groove is provided on the outer needle seat, and the sheath seat is slidably connected to the outer needle seat through the sliding groove.

Among them, the end of the inner needle rod away from the implant baffle passes through the guide tube and is fixedly connected to the push handle so that the push handle drives the inner needle rod to slide. A buffer is sleeved on the inner needle rod, and both ends of the buffer are respectively connected to the guide tube and the push handle.

Among them, one end of the outer needle tube away from the hand-holding component is curved, and the end of the outer needle tube is provided with a receiving groove, and the receiving groove is used to place the implantation baffle.

Among them, one end of the elastic needle is a hook structure, the hook structure faces the inner cavity of the push handle and slides in the groove, and the other end of the elastic needle is fixedly connected to the push handle.

Among them, the hand-held component is an operating handle, and an anti-slip structure is arranged on the operating handle.

The beneficial effects of the present invention are as follows: different from the prior art, a meniscus suture device is provided, which includes: a hand-held component, one end of which is provided with a driving component; a needle tube component, which is installed on the hand-held component and penetrates from one end of the hand-held component where the driving component is provided; the needle tube component includes an inner needle rod and an outer tube sleeved on the inner needle rod, the inner needle rod is fixedly connected to the driving component, and the driving device drives the inner needle rod to slide in the outer tube; an implantation baffle, the implantation baffle includes a first suture baffle and a second suture baffle, the first suture baffle and the second suture baffle are connected by sutures; the first suture baffle and the second suture baffle are sequentially placed at one end of the outer tube away from the hand-held component. The present invention realizes suturing at the meniscus crack by driving the inner needle rod to push the first suture baffle and the second suture baffle out of the outer tube in turn when the driving component drives the inner needle rod, and implanting the first suture baffle and the second suture baffle into one side of the meniscus. The structure is simple, the cost is low, the operation is convenient and quick, which not only reduces the equipment cost, but also simplifies the operation process and reduces the operation time.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic structural diagram of a meniscus suture device provided by the present invention;

FIG2 is a schematic diagram of the exploded structure of the meniscus suture device provided by the present invention;

3 is a schematic structural diagram of the initial state of the meniscus suture device provided by the present invention;

FIG4 is a schematic structural diagram of a meniscus suture device at position I provided in FIG3 ;

5 is a schematic structural diagram of the meniscus suture device provided by the present invention in the first suture state;

FIG6 is a schematic structural diagram of the meniscus suture device at position II in FIG5;

7 is a schematic structural diagram of the meniscus suture device provided by the present invention after the first suture is completed;

FIG8 is a schematic diagram of the structure of the meniscus suture device at position III provided in FIG7;

9 is a schematic structural diagram of a meniscus suture device provided by the present invention in a second suture preparation state;

FIG10 is a schematic diagram of the structure of the meniscus suture device at position IV provided in FIG9;

11 is a schematic structural diagram of a meniscus suture device provided by the present invention in a second suture state;

FIG12 is a schematic structural diagram of the meniscus suture device at position V in FIG11;

13 is a schematic structural diagram of the lead groove in the meniscus suture device provided by the present invention;

Fig. 14 is a cross-sectional view taken along line A-A in Fig. 13;

Fig. 15 is a cross-sectional view taken along line B-B in Fig. 13;

16 is a schematic diagram of the matching structure of the meniscus suture device and the meniscus provided by the present invention;

FIG. 17 is a schematic diagram of the structure of the meniscus after being sutured by the meniscus suturer provided by the present invention.

In the figure: a meniscus suture device 100; a needle tube assembly 1; an inner needle rod 11; an outer tube 12; an outer needle tube 121; a support tube 122; a reducer 123; a protective hose 124; a puncture sheath 125; an inner needle seat 126; a receiving groove 127; a drive assembly 2; a guide tube 21; an outer needle seat 22; a slide groove 221; a push handle 23; a spring needle 231; a sheath seat 24; a buffer member 25; a guide groove 26; a first section groove 261, a second section groove 262, a third section groove 263, a fourth section groove 264, a fifth section groove 265, and a sixth section groove 266; a hand-held assembly 3; an implant baffle 4; a first suture baffle 41; a second suture baffle 42; a suture thread 43; a meniscus 5.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

The term "and/or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship. In addition, "many" in this article means two or more than two.

The terms "first", "second" and "third" in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include at least one feature. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products or devices.

Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of a phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the structure of the meniscus suture provided by the present invention; Figure 2 is a schematic diagram of the exploded structure of the meniscus suture provided by the present invention. In this embodiment, a meniscus suture 100 is provided, and the meniscus suture 100 includes a hand-grip assembly 3, a needle assembly 1, a drive assembly 2, and an implant baffle 4.

The hand-held assembly 3 is provided with a driving assembly 2 at one end; the needle tube assembly 1 is installed in the hand-held assembly 3 and penetrates from the end of the hand-held assembly 3 where the driving assembly 2 is provided; the needle tube assembly 1 includes an inner needle rod 11 and an outer tube 12 sleeved on the inner needle rod 11, the inner needle rod 11 is fixedly connected to the driving assembly 2, and the driving assembly 2 drives the inner needle rod 11 to slide in the outer tube 12; the implantation baffle 4 includes a first suture baffle 41 and a second suture baffle 42, and the first suture baffle 41 and the second suture baffle 42 are connected by suture lines 43; the first suture baffle 41 and the second suture baffle 42 are placed at one end of the outer tube 12 away from the hand-held assembly 3. The second suture baffle 42 is closer to the hand-held assembly 3 than the first suture baffle 41.

Among them, the outer tube 12 includes an outer needle tube 121, the outer needle tube 121 is sleeved on the inner needle rod 11, the inner needle rod 11 is slidably connected to the outer needle tube 121, a support tube 122 is sleeved on the outer needle tube 121, one end of the support tube 122 is fixedly connected to the outer wall of the outer needle tube 121 through a reducer 123, and a puncture sheath 125 is sleeved on the support tube 122.

Among them, the driving component 2 includes a lead tube 21, one end of the lead tube 21 is fixedly connected to the outer needle seat 22, the other end is sleeved with a pushing handle 23 and the end of the lead tube 21 passes through the pushing handle 23 and is fixedly connected to the hand-held component 3, a lead groove 26 is provided on the lead tube 21, and a spring pin 231 matching the lead groove 26 is provided on the pushing handle 23.

Among them, a sheath seat 24 is installed on the outer needle seat 22, and the sheath seat 24 is fixedly connected to the puncture sheath 125. A sliding groove 221 is provided on the outer needle seat 22, and the sheath seat 24 is slidably connected to the outer needle seat 22 through the sliding groove 221.

Among them, one end of the inner needle rod 11 away from the implantation baffle 4 passes through the guide tube 21 and is fixedly connected to the pushing handle 23, so that the pushing handle 23 drives the inner needle rod 11 to slide. A buffer member 25 is sleeved on the inner needle rod 11, and the two ends of the buffer member 25 are respectively connected to the guide tube 21 and the pushing handle 23.

One end of the outer needle tube 121 away from the hand-holding assembly 3 is curved, and a receiving groove 127 is provided at the end of the outer needle tube 121, and the receiving groove 127 is used to place the implant baffle 4.

One end of the spring pin 231 is a hook structure, which faces the inner cavity of the push handle 23 and slides in the lead groove 26 , and the other end of the spring pin 231 is fixedly connected to the push handle 23 .

Among them, the hand-grip component 3 is an operating handle, and an anti-slip structure is arranged on the operating handle.

The present embodiment provides a meniscus suture device, which includes: a hand-held component, one end of which is provided with a driving component; a needle tube component, which is installed on the hand-held component and penetrates from one end of the hand-held component where the driving component is provided; the needle tube component includes an inner needle rod and an outer tube sleeved on the inner needle rod, the inner needle rod is fixedly connected to the driving component, and the driving device drives the inner needle rod to slide in the outer tube; an implantation baffle, the implantation baffle includes a first suture baffle and a second suture baffle, the first suture baffle and the second suture baffle are connected by sutures; the first suture baffle and the second suture baffle are sequentially placed at one end of the outer tube away from the hand-held component. The present invention realizes suturing at the meniscus crack by driving the inner needle rod to push the first suture baffle and the second suture baffle out of the outer tube in turn when the driving component drives the inner needle rod, and implanting the first suture baffle and the second suture baffle into one side of the meniscus. The structure is simple, the cost is low, and the operation is convenient and quick, which not only reduces the equipment cost, but also simplifies the operation process and reduces the operation time.

Please refer to Figures 3 to 17, Figure 3 is a structural schematic diagram of the initial state of the meniscus suture provided by the present invention; Figure 4 is a structural schematic diagram of location I in the meniscus suture provided in Figure 3; Figure 5 is a structural schematic diagram of the meniscus suture provided by the present invention in the first suture state; Figure 6 is a structural schematic diagram of location II in the meniscus suture provided in Figure 5; Figure 7 is a structural schematic diagram of the meniscus suture provided by the present invention after the first suture is completed; Figure 8 is a structural schematic diagram of location III in the meniscus suture provided in Figure 7; Figure 9 is a structural schematic diagram of the meniscus suture provided by the present invention in the second suture preparation state; Fig. 10 is a schematic diagram of the structure of the meniscus suture device provided in Fig. 9 at position IV; Fig. 11 is a schematic diagram of the structure of the meniscus suture device provided by the present invention in the second suturing state; Fig. 12 is a schematic diagram of the structure of the meniscus suture device provided in Fig. 11 at position V; Fig. 13 is a schematic diagram of the structure of the guide groove in the meniscus suture device provided by the present invention; Fig. 14 is a cross-sectional view at position A-A in Fig. 13; Fig. 15 is a cross-sectional view at position B-B in Fig. 13; Fig. 16 is a schematic diagram of the matching structure of the meniscus suture device provided by the present invention and the meniscus; Fig. 17 is a schematic diagram of the structure of the meniscus after suturing by the meniscus suture device provided by the present invention. In this embodiment, a meniscus suture device 100 is provided, and the meniscus suture device 100 includes a hand-grip assembly 3, a needle assembly 1, a drive assembly 2, a needle assembly 1 and an implant baffle 4.

The needle tube assembly 1 includes an inner needle rod 11 and an outer tube 12, wherein one end of the inner needle rod 11 is sleeved with a buffer 25, and the end of the inner needle rod 11 sleeved with the buffer 25 is fixedly connected to the inner needle seat 126. The length of the buffer 25 is less than the length of the inner needle rod 11. The buffer 25 can be a spring. The outer tube 12 includes an outer needle tube 121, which is sleeved on one end of the inner needle rod 11 away from the inner needle seat 126, and the end of the outer needle tube 121 away from the buffer 25 is provided with a receiving groove 127, and the receiving groove 127 is used to install the implant baffle 4. The length of the outer needle tube 121 is less than the inner needle rod 11. A support tube 122 is sleeved on the outer needle tube 121, and one end of the support tube 122 is fixedly connected to the outer needle tube 121 through a reducer 123. The end of the support tube 122 close to the buffer 25 is fixedly connected to the outer needle seat 22. A protective hose 124 is sleeved at the connection between the reducer 123, the outer needle tube 121 and the support tube 122. The protective hose 124 may be a heat shrink tube, which is used to protect the connection between the reducer 123, the outer needle tube 121 and the support tube 122. A puncture sheath 125 is also sleeved on the support tube 122, and one end of the puncture sheath 125 close to the buffer 25 is fixedly connected to the sheath seat 24. The central axes of the inner needle rod 11, the outer needle tube 121, the reducer 123, the support tube 122 and the puncture sheath 125 are the same.

The driving assembly 2 includes a sheath seat 24, which is inserted into the outer needle seat 22. The outer needle seat 22 is a tubular structure, and a slide groove 221 is provided on the outer needle seat 22. The sheath seat 24 is slidably connected to the outer needle seat 22. A hand push portion is provided on the sheath seat 24, and the hand push portion slides in the slide groove 221, driving the sheath seat 24 to slide in the outer needle seat 22. The end of the outer needle seat 22 away from the support tube 122 is fixedly connected with a guide tube 21, and the guide tube 21 is inserted into the inner needle rod 11, and a guide groove 26 is provided on the guide tube 21. The lead groove 26 includes a first groove 261, a second groove 262, a third groove 263, a fourth groove 264, a fifth groove 265 and a sixth groove 266 which are connected in sequence. The end of the first groove 261 away from the second groove 262 is connected to the end of the sixth groove 266 away from the fifth groove 265. Two adjacent sections of the first groove 261, the second groove 262, the third groove 263, the fourth groove 264, the fifth groove 265 and the sixth groove 266 form a preset angle. The second groove 262 and the fifth groove 265 are arranged at intervals and are parallel to each other. The distance between the end of the first groove 261 connected to the sixth groove 266 and the outer needle seat 22 is greater than the distance between the end of the first groove 261 connected to the second groove 262 and the outer needle seat 22. The distance between the end of the sixth section groove 266 connecting the first section groove 261 and the outer needle seat 22 is greater than the distance between the end of the sixth section groove 266 connecting the fifth section groove 265 and the outer needle seat 22. The distance between the end of the third section groove 263 connecting the fourth section groove 264 and the outer needle seat 22 is greater than the distance between the end of the third section groove 263 connecting the second section groove 262 and the outer needle seat 22. The distance between the end of the fourth section groove 264 connecting the third section groove 263 and the outer needle seat 22 is greater than the distance between the end of the fourth section groove 264 connecting the fifth section groove 265 and the outer needle seat 22. The bottom surface of the first section groove 261 and/or the fifth section groove 265 is inclined, and the bottom surface of the first section groove 261 close to the second section groove 262 is higher than the bottom surface of the first section groove 261 close to the sixth section groove 266, and the bottom surface of the fifth section groove 265 close to the sixth section groove 266 is higher than the bottom surface of the fifth section groove 265 close to the fourth section groove 264. The guide tube 21 is provided with a push handle 23, and the push handle 23 is provided with an elastic pin 231, one end of the elastic pin 231 is fixedly connected to the push handle 23, and the other end passes through the inner cavity of the push handle 23 and cooperates with the guide groove 26 on the guide tube 21. The end of the guide tube 21 away from the outer needle seat 22 passes through the push handle 23 and is fixedly engaged with the hand-held component 3. Among them, the buffer 25 is arranged between the push handle 23 and the guide groove 26. The push handle 23 can slide on the guide tube 21, and then the buffer 25 can be compressed. The end of the inner needle seat 126 away from the inner needle rod 11 is fixedly connected to the push handle 23.

The hand-grip assembly 3 is sleeved on the push handle 23. The hand-grip assembly 3 is an operating handle, and the push handle 23 is provided with anti-slip grooves.

The implantation stopper 4 includes a first suture stopper 41 and a second suture stopper 42, which are connected by sutures 43. The first suture stopper 41 and the second suture stopper 42 are installed in the receiving groove 127 of the outer needle tube 121.

When the meniscus suture device 100 needs to suture the cracked meniscus 55, the second suture baffle 42 and the first suture baffle 41 are sequentially installed in the accommodating groove 127, and the first suture baffle 41 and the second suture baffle 42 are connected by the suture line 43. After the installation is completed, the sheath seat 24 is pushed to slide in the outer needle seat 22 toward the end away from the guide tube 21, so that the sheath seat 24 drives the puncture sheath 125 to slide in the same direction, and then the end of the puncture sheath 125 away from the sheath seat 24 exceeds the second suture baffle 42, protecting the second suture baffle 42 from automatically falling off during the operation.

Holding the operating handle, puncture the end of the needle tube assembly 1 away from the operating handle into the meniscus 5, and slide the push handle 23 away from the operating handle so that the end of the push handle 23 close to the outer needle seat 22 contacts the hand push portion of the sheath seat 24. At the same time, the spring between the push handle 23 and the guide tube 21 is compressed, and the push handle 23 drives the elastic needle 231 to slide from the intersection of the first section groove 261 and the sixth section groove 266 along the first section groove 261 to the intersection of the first section groove 261 and the second section groove 262. Since the bottom surface of the first section groove 261 is in an inclined uphill state, the elastic needle 231 pushes the guide tube 21 to deviate from the center axis and change the center axis of the guide tube 21 during the sliding process toward the intersection of the first section groove 261 and the second section groove 262. The deviation of the center axis of the guide tube 21 will drive the center axis of the inner needle rod 11 to deviate, and the push handle 23 slides forward to drive the inner needle rod 11 to slide forward, so that the end of the inner needle rod 11 close to the second suture baffle 42 passes from the side of the second suture baffle 42 and abuts against the first suture baffle 41, and the inner needle rod 11 continues to slide forward to push the first suture baffle 41 out of the outer needle tube 121.

After the first suture baffle plate 41 is pushed out, the push handle 23 is loosened, and the elastic force of the spring between the guide tube 21 and the push handle 23 is released, and the push handle 23 is driven to move backward by the elastic force of the spring, and the distance between the push handle 23 and the hand push portion of the sheath seat 24 increases and is in close contact with the operating handle. At the same time, the spring needle 231 slides in the second section groove 262 toward the direction close to the intersection of the third section groove 263 and the fourth section groove 264. The push handle 23 slides backward to drive the inner needle rod 11 to slide backward over the second suture baffle plate 42 and retract into the outer needle tube 121, and the end position of the inner needle rod 11 is lower than the second suture baffle plate 42.

Pull the end of the meniscus suture device 100 out of the meniscus 5, and pierce the meniscus suture device 100 into the other side of the crack, slide the push handle 23 away from the operating handle, so that the end of the push handle 23 close to the outer needle seat 22 contacts the hand push portion of the sheath seat 24. At the same time, the spring between the push handle 23 and the guide groove 26 is compressed, and the push handle 23 drives the elastic needle 231 to slide from the intersection of the third groove 263 and the fourth groove 264 along the fourth groove 264 and the fifth groove 265 in sequence. Since the end material of the inner needle rod 11 close to the second suture baffle 42 has toughness, the end of the inner needle rod 11 is in close contact with the inner wall of the outer needle tube 121. Since the bottom surface of the fifth groove 265 is in an inclined uphill state, the elastic needle 231 pushes the guide tube 21 to deviate during the sliding process, changing the center axis of the guide tube 21. The deviation of the center axis of the guide tube 21 drives the center axis of the inner needle rod 11 to deviate, and the push handle 23 slides forward to drive the inner needle rod 11 to slide forward, so that the end of the inner needle rod 11 close to the second suture baffle 42 abuts against the second suture baffle 42, and the inner needle rod 11 continues to slide forward to push the second suture baffle 42 out of the outer needle tube 121.

After the second suture baffle 42 is pushed out, the push handle 23 is loosened, and the elastic force of the spring between the guide tube 21 and the push handle 23 is released, and the push handle 23 is driven to move backward by the elastic force of the spring, and the distance between the push handle 23 and the hand push portion of the sheath seat 24 increases and is close to the operating handle. At the same time, the spring needle 231 slides in the sixth section groove 266 toward the direction close to the intersection of the sixth section groove 266 and the first section groove 261. The push handle 23 slides backward to drive the inner needle rod 11 to slide backward and retract into the outer needle tube 121. The meniscus 5 is sutured, and the meniscus suture device 100 is pulled out from the meniscus 5.

The present embodiment provides a meniscus suture device, which includes: a hand-held component, one end of which is provided with a driving component; a needle tube component, which is installed on the hand-held component and penetrates from one end of the hand-held component where the driving component is provided; the needle tube component includes an inner needle rod and an outer tube sleeved on the inner needle rod, the inner needle rod is fixedly connected to the driving component, and the driving device drives the inner needle rod to slide in the outer tube; an implantation baffle, the implantation baffle includes a first suture baffle and a second suture baffle, the first suture baffle and the second suture baffle are connected by sutures; the first suture baffle and the second suture baffle are sequentially placed at one end of the outer tube away from the hand-held component. The present invention realizes suturing at the meniscus crack by driving the inner needle rod to push the first suture baffle and the second suture baffle out of the outer tube in turn when the driving component drives the inner needle rod, and implanting the first suture baffle and the second suture baffle into one side of the meniscus. The structure is simple, the cost is low, and the operation is convenient and quick, which not only reduces the equipment cost, but also simplifies the operation process and reduces the operation time.

The above are only implementation modes of the present invention, and are not intended to limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (9)

1. A meniscus suture device, characterized in that the meniscus suture device comprises: A hand grip assembly, wherein a driving assembly is provided at one end of the hand grip assembly; A needle tube assembly, the needle tube assembly is mounted on the hand-held assembly and penetrates from one end of the hand-held assembly where the drive assembly is arranged; the needle tube assembly comprises an inner needle rod and an outer tube sleeved on the inner needle rod, the inner needle rod is fixedly connected to the drive assembly, and the drive assembly drives the inner needle rod to slide in the outer tube; An implantation baffle, the implantation baffle comprising a first suturing baffle and a second suturing baffle, the first suturing baffle and the second suturing baffle being connected by sutures; the first suturing baffle and the second suturing baffle being sequentially disposed at one end of the outer tube away from the hand-grip assembly; Among them, the driving assembly includes a lead tube, one end of the lead tube is fixedly connected to an outer needle seat, and the other end is sleeved with a pushing handle, and the end of the lead tube passes through the pushing handle and is fixedly connected to the hand-held assembly, the lead tube is provided with a lead groove, and the pushing handle is provided with a spring pin matching the lead groove. 2. The meniscus suture device according to claim 1 is characterized in that the outer tube includes an outer needle tube, the outer needle tube is sleeved on the inner needle rod, the inner needle rod is slidably connected to the outer needle tube, a support tube is sleeved on the outer needle tube, one end of the support tube is fixedly connected to the outer needle tube through a reducer, and a puncture sheath is sleeved on the support tube. 3. The meniscus suture device according to claim 1 is characterized in that the lead groove includes a first groove section, a second groove section, a third groove section, a fourth groove section, a fifth groove section and a sixth groove section connected in sequence, an end of the first groove section away from the second groove section is connected to an end of the sixth groove section away from the fifth groove section, two adjacent sections of the first groove section, the second groove section, the third groove section, the fourth groove section, the fifth groove section and the sixth groove section form a preset angle, and the second groove section and the fifth groove section are spaced apart and parallel to each other. 4. The meniscus suture device according to claim 3 is characterized in that the bottom surfaces of the first groove section and/or the fifth groove section are inclined, and the bottom surface of the first groove section close to the second groove section is higher than the bottom surface of the first groove section close to the sixth groove section, and the bottom surface of the fifth groove section close to the sixth groove section is higher than the bottom surface of the fifth groove section close to the fourth groove section. 5. The meniscus suture device according to claim 1 is characterized in that a sheath seat is provided in the outer needle seat, the sheath seat is fixedly connected to the puncture sheath, a slide groove is provided on the outer needle seat, and the sheath seat is slidably connected to the outer needle seat through the slide groove. 6. The meniscus suture device according to claim 1 is characterized in that one end of the inner needle rod away from the implant baffle passes through the guide tube and is fixedly connected to the pushing handle so that the pushing handle drives the inner needle rod to slide, and a buffer member is sleeved on the inner needle rod, and both ends of the buffer member are respectively connected to the guide tube and the pushing handle. 7. The meniscus suture device according to claim 2 is characterized in that one end of the outer needle tube away from the hand-holding assembly is curved, and a receiving groove is provided at the end of the outer needle tube, and the receiving groove is used to place the implant baffle. 8. The meniscus suture device according to claim 1, characterized in that the hand-grip assembly is an operating handle with a hollow structure, and an anti-slip structure is provided on the outer wall of the operating handle. 9. The meniscus suture device according to claim 1 is characterized in that one end of the elastic needle is a hook structure, the hook structure faces the inner cavity of the push handle and slides in the lead groove, and the other end of the elastic needle is fixedly connected to the push handle.