Meniscus suture system

Abstract

The utility model relates to the technical field of medical instruments, in particular to a meniscus suturing system which comprises a handle, a puncture needle, a depth limiting tube, a pushing rod, a pushing mechanism, a first implant, a second implant and a shearing mechanism, the shearing mechanism comprises a shearing rod arranged outside the pushing rod, communicated through holes are formed in the end and the side wall of the pushing rod, and the first implant and the second implant are arranged in the through holes. The end portion of the shearing rod is provided with a notch used for shearing a suture, the handle is provided with a shearing sliding groove, the tail portion of the shearing rod is provided with a shearing push plate penetrating through the shearing sliding groove, the pushing mechanism comprises a main sliding block connected with the pushing rod, the handle is provided with a main sliding groove, the main sliding block is connected with a main push plate penetrating through the main sliding groove, and the main push plate is connected with the main sliding groove. The utility model has the following beneficial effects: the shearing mechanism and the shearing rod are arranged, a suture can be directly cut off by using a suture system at the torn part of the sutured meniscus without replacing a knot pushing and thread cutting device, the operation steps are reduced, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a meniscus suture system. BACKGROUND

[0002] Meniscus is one of important structures of knee joint, is two meniscus fibrocartilages, is located in the knee joint, is divided into medial and lateral meniscus according to position distribution, meniscus has the important function such as transmission load, absorption impact, stability joint, coordination knee joint movement, meniscus often occurs twist and contusion injury and degenerative change, or is because tear or age growth and degeneration, namely meniscus injury, the meniscus surgery of knee joint is all treated under the mirror currently, treatment method has meniscus complete resection, meniscus trimming, meniscus suture, meniscus transplantation.

[0003] Meniscus suture is a kind of universal treatment scheme on clinic, there are many kinds of meniscus suture devices on the market, most of which are provided with different numbers of implants in the pipe fitting, for example, the meniscus suture system and the use method thereof in the patent no. CN202310619762.9, the number of implants used is 2, the push rod is movably penetrated in the puncture needle, and the push rod moves in the puncture needle to push the implant out of the puncture needle, the two implants are passed through the meniscus tear, and one suture is completed, and finally the push knot cutting device is replaced to cut the suture, which is more complicated to operate, so that the operation time is longer, the doctor's energy consumption is serious, and the corresponding failure rate is also increased, how to overcome the above defects of the traditional technology is a technical problem urgently to be solved by the person skilled in the art. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the prior art, the utility model provides a meniscus suture system to solve the problem that the operation is complicated.

[0005] To solve the above problems, the technical scheme of the utility model is as follows: a meniscus suture system, comprising a handle, the handle is connected with a puncture needle, a first implant and a second implant are arranged in the puncture needle, the first implant and the second implant are connected by a suture, a depth limiting tube is arranged outside the puncture needle, a push rod is arranged in the puncture needle, the push rod is connected with a pushing mechanism, and a cutting mechanism for cutting the suture is connected between the puncture needle and the push rod.

[0006] Further, the cutting mechanism comprises a cutting rod arranged outside the push rod, the end portion and the side wall of the push rod are provided with through holes in communication, the end portion of the cutting rod is provided with a gap for cutting the suture, a cutting sliding groove is arranged on the handle, and a cutting push plate is arranged on the tail portion of the cutting rod and passes through the cutting sliding groove.

[0007] Further, a suture channel for the suture to pass through is arranged on the handle, and a threader is arranged.

[0008] Further, the pushing mechanism comprises a main sliding block connected with the pushing rod, a main sliding groove is arranged on the handle, a main push plate is connected with the main sliding block and passes through the main sliding groove, and a spring is arranged between the main sliding block and the handle.

[0009] Further, the main push plate is in L shape and is matched with the finger shape.

[0010] Further, the tail of the depth limiting pipe is connected with a depth pushing rod, and a depth sliding groove is arranged on the side wall of the handle, and the depth pushing rod passes through the depth sliding groove.

[0011] Further, a key buckle is arranged in the handle, and a positioning groove matched with the key buckle is arranged on the depth pushing rod.

[0012] Further, a scale is arranged on the outer wall of the tail of the depth limiting pipe.

[0013] Further, the puncture needle is one of a straight puncture needle tube, a bent puncture needle tube and a reverse bent puncture needle tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the cutting mechanism and the cutting rod are arranged, the suture system can be directly used to cut the suture after the meniscus tear is sutured, the push knot cutting device does not need to be replaced, the operation steps are reduced, and time and labor are saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sectional structure schematic view of the utility model;

[0017] Figure 3 It is a cutting rod structure schematic view of the utility model;

[0018] Figure 4 It is a depth pushing rod structure schematic view of the utility model.

[0019] In the drawing: 1 handle, 101 cutting sliding groove, 102 suture channel, 103 main sliding groove, 104 depth sliding groove, 105 key buckle, 2 puncture needle, 3 first implant, 4 second implant, 5 suture, 6 depth limiting pipe, 601 scale, 7 pushing rod, 8 cutting rod, 801 gap, 802 cutting push plate, 9 through hole, 10 winding device, 11 main sliding block, 12 main push plate, 13 spring, 14 depth pushing rod, 1401 positioning groove. DETAILED DESCRIPTION

[0020] As Figure 1 , Figure 2As shown in the figure, a kind of meniscus suture system, including handle 1, on handle 1 there is suture channel 102 for suture 5 to pass through, and threader 10, handle 1 is connected with puncture needle 2, puncture needle 2 is according to the needs to select one of straight puncture needle tube, curved puncture needle tube, reverse curved puncture needle tube, there is first implant 3, second implant 4 in puncture needle 2, first implant 3, second implant 4 are connected by suture 5, depth limiting tube 6 is provided on the outer sleeve of puncture needle 2, push rod 7 is provided in puncture needle 2, push rod 7 is connected with push mechanism, there is cutting mechanism for cutting suture 5 between puncture needle 2 and push rod 7.

[0021] As shown in the figure, Figure 2 , Figure 3 Cutting mechanism includes cutting rod 8 provided on the outer of push rod 7, through hole 9 is provided on the end of push rod 7, side wall, and is connected, notch 801 for cutting suture 5 is provided on the end of cutting rod 8, cutting slide groove 101 is provided on handle 1, cutting push plate 802 is provided on the tail of cutting rod 8 and passes through cutting slide groove 101.

[0022] As shown in the figure, Figure 2 Push mechanism includes main sliding block 11 connected with push rod 7, main slide groove 103 is provided on handle 1, main push plate 12 is connected and passes through main slide groove 103, spring 13 is provided between main sliding block 11 and handle 1.

[0023] Main push plate 12 and cutting push plate 802 can be designed as L type, which is suitable for the shape of fingers, conforms to ergonomics, and is more labor-saving in operation.

[0024] Depth limiting tube 6 is connected with depth push rod 14 on the tail, depth slide groove 104 is provided on the side wall of handle 1, depth push rod 14 passes through depth slide groove 104, as shown in the figure, Figure 4 Key buckle 105 is provided in handle 1, positioning groove 1401 is provided on depth push rod 14 and is matched with key buckle 105, scale 601 is provided on the outer wall of tail of depth limiting tube 6.

[0025] In use, the doctor first measures the depth using a bone probe, presses the depth push rod 14 according to the measured depth, pulls the depth limiting tube 6 into the handle 1, makes the button buckle 105 buckle into the positioning groove 1401, completes the positioning of the depth limiting tube 6, makes the length of the front end puncture needle 2 the same as the measured depth, uses the orthopedic guide to guide the depth limiting tube 6 to stretch to the tear, makes the puncture needle 2 align with the puncture position, pushes the handle 1 forward, the puncture needle 2 passes through above the tear, pushes the main push plate 12 forward, the push rod 7 pushes the first implant 3, releases the first implant 3, pulls out the handle 1, releases the push rod 7, the spring 13 drives the main sliding block 11 and the push rod 7 to reset, adjusts the handle 1 again, the puncture needle 2 aligns below the tear, pierces the meniscus, releases the second implant 4, the wire winder 10 pulls the suture 5, makes the first implant 3 and the second implant 4 pull in, completes a suture, pushes the cutting push plate 802 forward, the cutting rod 8 cuts the suture 5 passing through the through hole 9, pushes the cutting push plate 802 back to reset, completes an operation, and the suture process does not use the push knot wire cutter, simplifies the operation steps and saves the doctor's energy.

[0026] The above specific embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A meniscus suture system, comprising a handle connected to a puncture needle, wherein a first implant and a second implant are disposed within the puncture needle, the first implant and the second implant being connected by a suture, characterized in that: The depth limiting tube is arranged outside the puncture needle, the push rod is arranged inside the puncture needle, the push rod is connected with the push mechanism, and the shearing mechanism for shearing the suture is arranged between the puncture needle and the push rod.

2. A meniscal suturing system according to claim 1, wherein: The shearing mechanism comprises a shearing rod arranged outside the push rod, a through hole arranged on the end and the side wall of the push rod and connected with each other, an opening arranged on the end of the shearing rod for shearing the suture, a shearing sliding groove arranged on the handle, and a shearing push plate arranged on the tail of the shearing rod and penetrating through the shearing sliding groove.

3. A meniscal suturing system according to claim 2, wherein: The handle is provided with a suture channel for the suture to pass through and a threader.

4. A meniscal suturing system according to claim 3, wherein: The push mechanism comprises a main sliding block connected with the push rod, a main sliding groove arranged on the handle, a main push plate connected with the main sliding block and penetrating through the main sliding groove, and a spring arranged between the main sliding block and the handle.

5. A meniscal suturing system according to claim 4, wherein: The main push plate is in L shape and is matched with the shape of the finger.

6. A meniscal suturing system according to claim 5, wherein: The tail of the depth limiting tube is connected with a depth push rod, and the handle is provided with a depth sliding groove on the side wall.

7. A meniscal suturing system according to claim 6, wherein: The handle is provided with a key buckle, and the depth push rod is provided with a positioning groove matched with the key buckle.

8. A meniscal suturing system according to claim 7, wherein: The tail of the depth limiting tube is provided with a scale.

9. A meniscal suturing system according to claim 1, wherein: The puncture needle is one of a straight puncture needle tube, a bent puncture needle tube and a reverse bent puncture needle tube.

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