Meniscus suture needle
By designing gaps along the length direction on the needle body of the meniscus suture needle, the suture is allowed to enter or exit the needle body through the gap, which solves the problem of difficulty in passing the suture thread through the needle body, and improves the convenience and efficiency of the suture process.
Patent Information
- Application Number
- CN202421002980.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-10
AI Technical Summary
During meniscus suturing, the suture is softer, making it difficult to pass it through the needle body.
A meniscus suture needle is designed, with the needle body having a gap that penetrates along the length direction, allowing the suture to enter or exit the needle body through the gap, thereby avoiding passing through the needle body.
Entering or exiting the needle body through the gap solves the problem of difficulty in passing the suture thread through the needle body, and improves the convenience and efficiency of the suture process.
Smart Images
Figure CN222584561U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of suture needles, and more specifically relates to a meniscus suture needle. Background Art
[0002] Meniscus injury is relatively common in clinical practice. Injuries to the non-vascularized area are often treated with meniscus resection or shaping, while injuries to the vascularized area are treated with meniscus suture as much as possible. When suturing the meniscus, a suture needle is required. The needle body of the suture needle is a hollow tubular structure. The suture thread is inserted into the needle body, and one end of the suture thread passes through the needle body from the needle tip. The inventor of the present application found that since the suture thread is relatively soft, it is difficult to pass the suture thread through the needle body. Utility Model Content
[0003] The utility model aims to provide a meniscus suture needle, aiming to solve the problem that it is difficult to pass a suture thread through a needle body.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a meniscus suture needle, including a needle body with a tubular structure, the needle body having a needle tip, and the side wall of the needle body is provided with a notch, and the notch penetrates the needle body along the length direction of the needle body so that the suture thread can enter or exit the needle body through the notch.
[0005] In a possible implementation, the meniscus suture needle further includes an operating assembly, the operating assembly is disposed at one end of the needle body away from the needle tip, and the operating assembly includes an extrusion piece. The extrusion piece is inserted into the notch, and the extrusion piece has two extrusion surfaces disposed at an angle, the two extrusion surfaces are respectively in sliding contact with the two side surfaces of the notch, and the distance between the two extrusion surfaces gradually increases from the inside of the needle body to the outside of the needle body, so that when the extrusion piece slides into the needle body, the two extrusion surfaces can respectively push the two side surfaces of the notch outward.
[0006] In a possible implementation, the operating assembly further includes a first fixing member, a fixing shaft, a second fixing member and a sliding shaft. The first fixing member is fixedly connected to the extruding member. The fixing shaft is located on the side of the needle body facing away from the notch, the fixing shaft is arranged along the radial direction of the needle body and one end of the fixing shaft is fixedly connected to the needle body. The second fixing member is fixedly connected to the other end of the fixing shaft. The sliding shaft is parallel to the fixing shaft, one end of the sliding shaft is fixedly connected to the first fixing member, and the sliding shaft slides through the second fixing member.
[0007] In a possible implementation, the operating assembly further includes a compression spring, which is sleeved on the sliding shaft, and two ends of the compression spring are respectively in contact with the first fixing member and the second fixing member.
[0008] In a possible implementation manner, the side wall of the sliding shaft has a limiting portion protruding outward, and the limiting portion is located on a side of the second fixing member away from the first fixing member.
[0009] In a possible implementation, the operating assembly further includes a third fixing member and a hand piece. The third fixing member is fixedly connected to the second fixing member. The hand piece is a cylindrical structure, the hand piece is located on the side of the needle body facing away from the needle tip and is coaxially arranged with the needle body, and the hand piece is fixedly connected to the third fixing member.
[0010] In a possible implementation, the side wall of the handpiece is provided with knurling.
[0011] In a possible implementation manner, the notch intersects with a middle portion of the needle tip.
[0012] In a possible implementation, the edge of the inner surface of the needle tip is chamfered.
[0013] In a possible implementation, a side wall of the needle body is provided with a through hole, the through hole intersects with the notch, and the through hole is located between the extrusion piece and the needle tip.
[0014] In the embodiment of the present application, since the suture thread can enter the needle body through the notch, there is no need to pass the suture thread through the needle body, thereby avoiding the problem of difficulty in passing the suture thread through the needle body. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art 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 paying creative work.
[0016] Figure 1 A schematic diagram of the first axonometric structure of a meniscus suture needle provided in an embodiment of the utility model;
[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the local A in FIG.
[0018] Figure 3 A second isometric structural schematic diagram of a meniscus suture needle provided in an embodiment of the utility model;
[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the local B in FIG.
[0020] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of the local C in FIG.
[0021] Figure 6 This is a schematic diagram of the axonometric structure of the extrusion component in the meniscus suture needle provided in an embodiment of the utility model.
[0022] In the figure: 1, needle body; 11, needle tip; 111, chamfer; 12, notch; 13, hole; 21, extrusion member; 211, extrusion surface; 22, first fixing member; 23, fixed axis; 24, second fixing member; 25, sliding axis; 251, limit part; 26, compression spring; 27, third fixing member; 28, hand piece. DETAILED DESCRIPTION
[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0024] Please also read Figure 1 The meniscus suture needle provided by the utility model is now described. The meniscus suture needle has a tubular needle body 1, the needle body 1 has a needle tip 11, and the side wall of the needle body 1 is provided with a notch 12, which penetrates the needle body 1 along the length direction of the needle body 1 so that the suture thread can enter or exit the needle body 1 through the notch 12.
[0025] Compared with the prior art, the meniscus suture needle provided by the utility model can pass the suture thread into the needle body 1 through the notch 12, so the suture thread does not need to pass through the needle body 1, thereby avoiding the problem that it is difficult to pass the suture thread through the needle body 1.
[0026] In addition, in the prior art, when the suture needs to be withdrawn from the needle body 1, the needle body 1 has to move a long distance along its length direction to make the suture withdraw from the needle body 1, which is inconvenient. In the present application, the suture can be directly withdrawn from the needle body 1 through the notch 12, which is more convenient.
[0027] In some embodiments, see Figure 1 , Figure 2 and Figure 6The meniscus suture needle also includes an operating component, which is arranged at one end of the needle body 1 away from the needle tip 11, and the operating component includes an extrusion member 21. The extrusion member 21 is inserted into the notch 12, and the extrusion member 21 has two extrusion surfaces 211 arranged at an angle, and the two extrusion surfaces 211 are respectively slidably abutted against the two side surfaces of the notch 12, and the distance between the two extrusion surfaces 211 gradually increases from the inside of the needle body 1 to the outside of the needle body 1, so that when the extrusion member 21 slides into the needle body 1, the two extrusion surfaces 211 can push the two side surfaces of the notch 12 outward respectively, so that the notch 12 becomes larger, and at this time, the suture can enter the needle body 1 through the notch 12, and then the extrusion member 21 slides outward of the needle body 1, and the notch 12 becomes smaller and resets. At this time, the width of the notch 12 is smaller than the diameter of the suture, so as to avoid the suture from exiting the needle body 1 through the notch 12 during the operation. When the suture needs to be withdrawn from the notch 12, the extrusion member 21 is driven to slide into the needle body 1 again.
[0028] In some embodiments, the feature operation component can be used as follows: Figure 3 and Figure 4 See the structure shown. Figure 3 and Figure 4 The operating assembly also includes a first fixing member 22, a fixed shaft 23, a second fixing member 24 and a sliding shaft 25. The first fixing member 22 is fixedly connected to the extruding member 21. The fixed shaft 23 is located on the side of the needle body 1 facing away from the notch 12. The fixed shaft 23 is arranged along the radial direction of the needle body 1 and one end is fixedly connected to the needle body 1. The second fixing member 24 is fixedly connected to the other end of the fixed shaft 23. The sliding shaft 25 is parallel to the fixed shaft 23. One end of the sliding shaft 25 is fixedly connected to the first fixing member 22, and the sliding shaft 25 slides through the second fixing member 24. The fixed shaft 23 limits the movement of the extruding member 21 along the length direction of the notch 12 through the first fixing member 22, the sliding shaft 25 and the second fixing member 24. The first fixing member 22 is pressed toward the direction of the second fixing member 24, so that the sliding shaft 25 slides, thereby driving the extruding member 21 to slide into the needle body 1.
[0029] In some embodiments, the feature operation component can be used as follows: Figure 4 See the structure shown. Figure 4 The operating assembly further includes a compression spring 26. The compression spring 26 is sleeved on the sliding shaft 25, and the two ends of the compression spring 26 are respectively in contact with the first fixing member 22 and the second fixing member 24. The resilient force of the compression spring 26 can cause the extrusion member 21 to slide outward from the needle body 1 and return to its original position.
[0030] In some embodiments, the above-mentioned characteristic sliding shaft 25 can be adopted as follows Figure 4 See the structure shown. Figure 4The side wall of the sliding shaft 25 has a limiting portion 251 protruding outward, and the limiting portion 251 is located on a side of the second fixing member 24 away from the first fixing member 22. The limiting portion 251 can prevent the sliding shaft 25 from sliding off the second fixing member 24.
[0031] In some embodiments, the feature operation component can be used as follows: Figure 4 See the structure shown. Figure 4 The operating assembly further includes a third fixing member 27 and a hand piece 28. The third fixing member 27 is fixedly connected to the second fixing member 24. The hand piece 28 is a cylindrical structure, and the hand piece 28 is located on the side of the needle body 1 facing away from the needle tip 11 and is coaxially arranged with the needle body 1. The hand piece 28 is fixedly connected to the third fixing member 27. Medical staff can hold the hand piece 28 to perform suturing operations. In this embodiment, the third fixing member 27 and the sliding shaft 25 can be located between the needle body 1 and the hand piece 28.
[0032] In some embodiments, the side wall of the hand piece 28 is provided with knurling. In this way, the friction between the hand and the hand piece 28 can be increased.
[0033] In some embodiments, see Figure 1 , the notch 12 intersects with the middle of the needle tip 11. The tip of the needle tip 11 is first used to pass through the meniscus, and the corresponding other end is used to push the suture thread through the meniscus. The notch 12 is located between the two ends to avoid affecting the above operation.
[0034] In some embodiments, see Figure 5 The edge of the inner surface of the needle tip 11 is provided with a chamfer 111. Since the needle tip 11 needs to push the suture thread through the meniscus, the chamfer 111 is provided on the edge of the inner surface of the needle tip 11 to avoid cutting the suture thread.
[0035] In some embodiments, the above-mentioned characteristic needle body 1 can be used as follows Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2 The side wall of the needle body 1 is provided with a through hole 13, which intersects with the notch 12 and is located between the extrusion member 21 and the needle tip 11. When the extrusion member 21 slides into the needle body 1, the suture thread enters the needle body 1 and passes through the through hole 13. In this way, when the extrusion member 21 is reset and the notch 12 is reduced, the two side walls of the notch 12 can be prevented from clamping the suture thread through the through hole 13, thereby preventing the suture thread from being withdrawn when the needle body 1 is withdrawn from the meniscus.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A meniscus suture needle, comprising a needle body in a tubular structure, wherein the needle body has a needle tip, and wherein: A notch is provided on the side wall of the needle body, and the notch penetrates the needle body along the length direction of the needle body, so that the suture thread can enter or exit the needle body through the notch.
2. The meniscus suture needle according to claim 1, characterized in that: It also includes an operating assembly, which is arranged at one end of the needle body away from the needle tip, and includes: An extrusion piece is inserted into the notch, and the extrusion piece has two extrusion surfaces set at an angle. The two extrusion surfaces are respectively in sliding contact with the two side surfaces of the notch, and the distance between the two extrusion surfaces gradually increases from the inside of the needle body to the outside of the needle body, so that when the extrusion piece slides into the needle body, the two extrusion surfaces can push the two side surfaces of the notch outward respectively.
3. The meniscus suture needle according to claim 2, characterized in that: The operating component also includes: A first fixing member, fixedly connected to the extrusion member; A fixed shaft, located on a side of the needle body facing away from the notch, the fixed shaft is arranged along the radial direction of the needle body and one end of the fixed shaft is fixedly connected to the needle body; A second fixing member, fixedly connected to the other end of the fixing shaft; The sliding shaft is parallel to the fixed shaft, one end of the sliding shaft is fixedly connected to the first fixing member, and the sliding shaft slides through the second fixing member.
4. The meniscus suture needle according to claim 3, characterized in that: The operation component also includes: A compression spring is sleeved on the sliding shaft, and two ends of the compression spring are respectively in contact with the first fixing member and the second fixing member.
5. The meniscus suture needle according to claim 3, characterized in that: The side wall of the sliding shaft has a limiting portion protruding outward, and the limiting portion is located on a side of the second fixing member away from the first fixing member.
6. The meniscus suture needle according to claim 3, characterized in that: The operation component also includes: a third fixing member, fixedly connected to the second fixing member; The hand piece is in a cylindrical structure. The hand piece is located on the side of the needle body facing away from the needle tip and is coaxially arranged with the needle body. The hand piece is fixedly connected to the third fixing piece.
7. The meniscus suture needle according to claim 6, characterized in that: The side wall of the hand piece is provided with knurling.
8. The meniscus suture needle according to claim 1, characterized in that: The notch intersects with the middle portion of the needle tip.
9. The meniscus suture needle according to claim 1, characterized in that: The edges of the inner surface of the needle tip are chamfered.
10. The meniscus suture needle according to claim 2, characterized in that: A through hole is provided on the side wall of the needle body, the through hole intersects with the notch, and the through hole is located between the extrusion piece and the needle tip.