Surgical suture needle

Abstract

The utility model relates to a surgical suture needle which comprises an arc-shaped needle body, a needle tip part is formed at the front end of the needle body, the cross section of the needle tip part is in an inverted triangle shape, and three edges of the needle tip part are convex arc edges. The needle point part of the suture needle is provided with the convex arc edge, so that the needle body and the end head of the needle point part are in arc transition, stress is prevented from being concentrated on one point when the suture needle is sutured, the convex arc edge improves the structural strength of the end head of the needle point part, and the end head can be prevented from being rolled and deformed; the problem that an existing angle needle is not durable is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a suture needle for surgery. Background Art

[0002] Existing surgical suture needles include round needles and angle needles. The cross-section of the angle needle is divided into regular triangular needles and reverse triangular needles. When the needle hole in the tissue is expected to be the smallest and the tissue cutting is minimized, round needles are often used. Round needles are mostly used for intestinal sutures, fascia sutures, obstetrics and gynecology, hernia and cardiovascular surgeries. Angle needles are sharper and are mostly used for suturing tougher tissues such as skin and tendons. The existing angle needles are mostly very sharp, and the shape of the needle tip is a triangular pyramid. Specifically, the tip of the needle tip is the vertex, and the diameter gradually decreases from the needle body to the tip to form the needle tip. Figure 1 From the side view of the needle tip shown in the figure, the side surface 111 of the needle tip 11 is an inclined surface. When such a needle tip is used to suture tough tissues such as skin and tendons, the force is concentrated at the tip of the needle tip, causing the tip to easily curl, making the angle needle not durable. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art and provide a surgical suture needle to solve the problem that the tip of the existing angle needle is easily curled due to the concentrated force, making the angle needle not durable.

[0004] The technical solution to achieve the above purpose is:

[0005] The utility model provides a surgical suture needle, comprising an arc-shaped needle body, a needle tip portion is formed at the front end of the needle body, the cross section of the needle tip portion is an inverted triangle, and three edges of the needle tip portion are outwardly convex arc edges.

[0006] The needle tip of the suture needle of the utility model is provided with an outer convex arc edge, so that there is an arc-shaped transition between the needle body and the end of the needle tip, which avoids the stress concentration on one point of the suture needle during suturing. The outer convex arc edge improves the structural strength of the end of the needle tip, can avoid deformation such as curling at the end, and solves the problem of the poor durability of existing angle needles.

[0007] A further improvement of the surgical suture needle of the utility model is that the needle tip is provided with at least one blade edge.

[0008] A further improvement of the surgical suture needle of the utility model is that the length of the blade edge is 4 mm to 7 mm.

[0009] A further improvement of the surgical suture needle of the utility model is that the cross section of the needle body is an inverted triangle.

[0010] A further improvement of the surgical suture needle of the utility model is that the needle tip portion is a variable cross-section structure.

[0011] A further improvement of the surgical suture needle of the utility model is that the needle tip has three surfaces, and all of the three surfaces are frosted surfaces.

[0012] A further improvement of the surgical suture needle of the utility model is that the length of the outer convex arc edge is 4 mm to 7 mm.

[0013] A further improvement of the surgical suture needle of the utility model is that the ratio of the length of the outer convex arc edge to the width of the needle body is between 4 and 8.

[0014] A further improvement of the surgical suture needle of the utility model is that the curvature of the surgical suture needle is a 1 / 2 arc or a 3 / 8 arc.

[0015] A further improvement of the surgical suture needle of the utility model is that a threading hole is provided at the rear end of the needle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the needle tip of the angle needle in the prior art.

[0017] Figure 2 It is a schematic structural diagram of the first embodiment of the surgical suture needle of the utility model.

[0018] Figure 3 The figure is a comparison between the needle tip of the surgical suture needle of the utility model and the needle tip of the existing angle needle.

[0019] Figure 4 for Figure 2 AA section view in.

[0020] Figure 5 for Figure 2 Middle BB section view.

[0021] Figure 6 for Figure 2 A schematic diagram of another preferred embodiment of the BB cross-sectional view.

[0022] Figure 7 It is a schematic structural diagram of a second embodiment of the surgical suture needle of the utility model.

[0023] Figure 8 It is a front view of the needle tip of the third embodiment of the surgical suture needle of the present invention. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] See also Figure 2The utility model provides a surgical suture needle, which is used to solve the problem that the existing angle needle has a sharp tip designed as a triangular pyramid, which makes the needle tip not durable and prone to curling and bending. The surgical suture needle of the utility model improves the shape of the needle tip, and designs the three edges of the needle tip as convex arc edges, so that the needle tip has an arc transition instead of the bevel transition in the prior art, which can improve the structural strength of the end of the needle tip, avoid bending and deformation such as curling at the end, and make the suture needle more durable. The surgical suture needle of the utility model is described below in conjunction with the accompanying drawings.

[0026] See also Figure 2 , shows a schematic structural diagram of the first embodiment of the surgical suture needle of the utility model. Figure 3 , shows a front view of the needle tip of the surgical suture needle of the utility model. Figure 2 and Figure 3 , the utility model surgical suture needle is described.

[0027] like Figure 2 and Figure 3 As shown, the surgical suture needle 20 of the present invention comprises an arc-shaped needle body 21, a needle tip portion 22 is formed at the front end of the needle body 21, the cross section of the needle tip portion 22 is an inverted triangle, and the three edges of the needle tip portion 22 are outwardly convex arc edges 221.

[0028] The arc-shaped needle body 21 has an arc-shaped inner side 211 and an arc-shaped outer side 212. The arc-shaped inner side 211 is the side of the arc that is concave, and the arc-shaped outer side 212 is the side of the arc that is convex. The surface of the needle tip 22 located at the arc-shaped inner side 211 is a plane, and the two surfaces located at the arc-shaped outer side 212 are inclined surfaces. The two outer edges of the plane and the connection between the two inclined surfaces are convex arc edges 221.

[0029] Combination Figure 3 As shown, the outer convex arc edge 221 gradually and smoothly transitions from the edge of the needle body 21 to the end, so that the cross-sectional size of the needle tip 22 gradually decreases toward the end. Figure 1 and Figure 3 As shown, the needle tip 22 of the surgical suture needle 20 of the present invention is in an arc-shaped transition. Figure 1 Due to the bevel transition, the cross-sectional area of ​​the needle tip 22 of the utility model becomes larger, thereby improving the structural strength of the end, avoiding bending and deformation at the end, and also improving the durability of the needle tip 22, thereby increasing the service life of the suture needle.

[0030] In a specific embodiment of the present invention, the needle tip 22 is provided with at least one cutting edge.

[0031] In a preferred embodiment, a cutting edge is provided at the needle tip 22 , and the cutting edge is provided at any one of the three outer convex arc edges 221 .

[0032] In another preferred embodiment, two cutting edges are provided at the needle tip 22 , and the two cutting edges are provided at any two of the three outer convex arc edges 221 .

[0033] In another preferred embodiment, three cutting edges are provided at the needle tip 22 , and the three cutting edges are provided at three outer convex arc edges 221 .

[0034] Furthermore, the length H2 of the blade edge is 4 mm to 7 mm. The length H2 of the needle tip on the existing corner needle is about 1 mm to 2 mm. The suture needle of the present invention lengthens the blade edge at the needle tip 22, and the length of the blade edge is more than twice the needle tip of the original corner needle, so that the suture needle can gradually and smoothly transition from the needle body to the end of the needle tip, thereby improving the structural stability of the needle tip 22.

[0035] In a specific embodiment of the present invention, Figure 2 and Figure 4 As shown, the cross section of the needle body 21 is in the shape of an inverted triangle.

[0036] Furthermore, if Figure 2 and Figure 5 As shown, the cross section of the needle tip 22 is an inverted triangle and has a variable cross section structure. Figure 3 As shown, the cross-sectional size of the needle tip 22 gradually decreases from the side connected to the needle body 1 toward the end.

[0037] In another preferred embodiment, Figure 6 As shown, the cross section of the needle tip portion 22 is in the shape of an inverted triangle, and the three side surfaces of the needle tip portion 22 are all concave surfaces with the middle portion concave inwardly.

[0038] In a specific embodiment of the present invention, Figure 5 and Figure 6 As shown, the needle tip 22 has three surfaces, and all of the three surfaces are frosted surfaces.

[0039] In a specific embodiment of the present invention, Figure 2 and Figure 3 As shown, the length of the outer convex arc edge 221 is 4 mm to 7 mm. The ratio of the length of the outer convex arc edge to the width of the needle body is between 4 and 8.

[0040] In a specific embodiment of the present invention, a threading hole is provided at the rear end of the needle body 21. The suture thread 23 is connected at the threading hole.

[0041] Preferably, the threading hole provided at the rear end of the needle body 21 is a through hole penetrating through two surfaces of the needle body 21 , and the end of the suture 23 passes through the threading hole and is bonded and fixed to the body of the suture 23 by glue.

[0042] In another preferred embodiment, the threading hole at the rear end of the needle body 21 is a blind hole recessed inward from the end surface of the needle body 21, and the end of the suture 23 extends into the threading hole, and then the threading hole is deformed by squeezing the structure at the threading hole to clamp the suture 23.

[0043] In a specific embodiment of the present invention, Figure 7 As shown, in the second embodiment, the curvature of the surgical suture needle 20 of the present invention is a 3 / 8 arc.

[0044] like Figure 2 As shown, in the first embodiment, the curvature of the surgical suture needle 20 is 1 / 2 arc.

[0045] Preferably, the arc length of the surgical suture needle 20 is 15 mm to 19 mm.

[0046] The material of the surgical suture needle 20 can be titanium alloy.

[0047] In order to facilitate the use of the surgical suture needle 20, a flat clamping portion is formed at a portion of the needle body 21 of the suture needle 20 near the suture thread 23, so as to facilitate clamping the suture needle 20 with a needle holder.

[0048] Furthermore, before the suture 23 is connected to the needle body 21, the suture 23 is humidified to improve the flexibility of the suture 23. After the suture 23 is connected to the needle body 21, the suture needle and the suture are sterilized together.

[0049] In a specific embodiment of the present invention, Figure 8 As shown, in the third embodiment, the middle of the convex arc edge protrudes to the outside of the edge of the corresponding needle body, so that the cross-sectional size of the middle of the needle tip 22 is larger than the size of the needle body 21. The size of the surgical suture needle 20 of the utility model at the needle tip 22 gradually increases from the needle body 21 to the end and then decreases. When making it, the needle tip 22 can be slightly flattened to make the size of the needle tip 22 larger than the size of the needle body 21, and then the edge of the needle tip 22 is processed into a convex arc edge. Alternatively, a large-sized needle rod can be selected, and then polished according to the size of the needle body 21 and the size of the needle tip 22, so as to obtain the suture needle 20 of the utility model.

[0050] The surgical suture needle of the utility model is suitable for suturing tougher tissues such as skin and tendons. When in use, the suture needle is clamped with a needle holder, and the needle tip can penetrate the tissue to be sutured, and then the needle body and the suture thread pass through the tissue to be sutured to achieve combined suturing. The end of the needle tip is provided with two convex arc edges, which can improve the structural strength of the end of the needle tip, so that the needle tip can avoid bending and curling when penetrating tougher tissue, thereby improving the durability of the needle tip.

[0051] The suturing needle of the utility model is in the shape of an inverted triangle, and the surface of the arc inner side of the suturing needle is a plane. When the skin is sealed, the plane is arranged upward to avoid scratching the skin.

[0052] The three edges of the suture needle of the utility model are outwardly convex arc edges. Compared with the existing triangular pyramid needle tip, the area of ​​the needle tip of the utility model is increased, which can improve the structural strength of the needle tip end and improve the durability of the suture needle.

[0053] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A surgical suture needle, characterized in that: The invention comprises an arc-shaped needle body, wherein a needle tip is formed at the front end of the needle body, the cross section of the needle tip is an inverted triangle, and the three edges of the needle tip are outwardly convex arc edges.

2. The surgical suture needle according to claim 1, characterized in that: The needle tip is provided with at least one cutting edge.

3. The surgical suture needle according to claim 2, characterized in that: The length of the blade edge is 4 mm to 7 mm.

4. The surgical suture needle according to claim 1, characterized in that: The cross section of the needle body is inverted triangle shape.

5. The surgical suture needle according to claim 1, characterized in that: The needle tip portion is a variable cross-section structure.

6. The surgical suture needle according to claim 5, characterized in that: The needle tip has three surfaces, and all of the three surfaces are frosted surfaces.

7. The surgical suture needle according to claim 1, characterized in that: The length of the outer convex arc edge is 4mm to 7mm.

8. The surgical suture needle according to claim 1, characterized in that: The ratio of the length of the outer convex arc edge to the width of the needle body is between 4 and 8.

9. The surgical suture needle according to claim 1, characterized in that: The curvature of the surgical suture needle is 1 / 2 arc or 3 / 8 arc.

10. The surgical suture needle according to claim 1, characterized in that: A threading hole is arranged at the rear end of the needle body.

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