CN211511917U

CN211511917U - Hook thread needle with sheath for sewing puncture hole

Info

Publication number: CN211511917U
Application number: CN201920907346.8U
Authority: CN
Inventors: 朱峰; 陈欣; 王黎明
Original assignee: Sir Run Run Hospital Nanjing Medical University
Current assignee: Sir Run Run Hospital Nanjing Medical University
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-09-18
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a thread hooking needle with a sheath for stitching a puncture hole, which comprises a needle core and a needle sheath, wherein the rear end of the needle point of the needle core is provided with a hollow thread hooking groove, two sides of the thread hooking groove are inwards sunken into an arc shape, and a needle seat is arranged at one end of the needle core, which is far away from the needle point; the needle sheath comprises a rectangular seat and a fixed tube, the fixed tube is arranged on the rectangular seat, and the fixed tube is cylindrical. The utility model discloses can realize dismantling, convenient operation can disinfect the use repeatedly, and the needle business turn over all has the needle sheath protection, can conveniently sew up and close the puncture hole, avoids organizing during the embedding hook wire casing, reduces the tissue.

Description

Hook thread needle with sheath for sewing puncture hole

Technical Field

The utility model relates to the technical field of medical equipment, especially a puncture hole is sewed up and is used takes sheath crochet hook line needle.

Background

In the process of suturing the puncture hole in minimally invasive surgery, the requirement on a suturing needle is high so as to prevent the hernia of the puncture hole, and the existing suture hook needle has two types: 1. is a common conical piercing crochet needle, similar to a lead cone (shown in figure 1) in manual sewing by a skinner, and has the following defects: when the thread hooking cone is pulled out, tissues are clamped at the hook groove, and the tissues are damaged. 2. Is a relatively complex thread hooking device (as shown in fig. 2), and has the following defects: the structure is complicated, the cost is high, and the cleaning and the disinfection are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and designing a suture needle with a sheath for sewing a puncture hole.

In order to achieve the above object, the utility model provides a following technical scheme: a needle with a sheath for sewing a puncture hole comprises a needle core and a needle sheath, wherein a hollow thread hooking groove is formed in the rear end of a needle point of the needle core, two sides of the thread hooking groove are inwards sunken to form an arc shape, and a needle seat is arranged at one end, far away from the needle point, of the needle core;

the needle sheath comprises a rectangular seat and a fixed tube, the fixed tube is arranged on the rectangular seat, the fixed tube is cylindrical, a through hole is formed in the matching position of the rectangular seat and the fixed tube, the inner diameter of the through hole is the same as that of the fixed tube, the needle core can be inserted into the needle sheath and can slide along the needle sheath, and when the needle core is completely inserted into the needle sheath, the thread hooking groove is positioned outside the needle sheath.

Preferably, the other end of the needle base is provided with a pull ring.

Preferably, the length of the rear seat is greater than the diameter of the through hole.

Preferably, the needle tip is triangular pyramid-shaped, and the length is 3 mm.

Preferably, the length of the hollow groove of the line hooking groove is 6mm, the width of the groove is 0.4mm, and the notch is 2 mm.

Preferably, the needle core is 150mm long and 0.8mm in diameter.

Preferably, the needle sheath is 140mm long, the outer diameter of the fixing tube is 1.5mm, and the inner diameter is 1.1 mm.

The puncture hole stitching needle manufactured by the technical scheme of the utility model can be detached and repeatedly sterilized for use. The needle is protected by the needle sheath when the needle goes in and out, and the puncture hole can be conveniently closed by suturing the injury. The needle is convenient to insert and withdraw, the tissue is prevented from being embedded into the thread hooking groove, and the tissue is reduced.

Drawings

FIG. 1 is a front view of a first type of prior art crochet needle;

FIG. 2 is a schematic front view of a second type of crochet needle of the prior art;

FIG. 3 is a schematic view of the structure of the core needle and the needle sheath combination of the needle with sheath hook for suturing the puncture hole;

FIG. 4 is a schematic structural view of the core needle with a sheath thread hooking needle for suturing the puncture hole;

FIG. 5 is a schematic structural view of the needle sheath with sheath hook wire needle for suturing the puncture hole;

in the figure, 1, a needle core; 2. a needle sheath; 3. a wire hooking groove; 4. a needle seat; 5. a rectangular base; 6. a fixed tube; 7. and (4) a pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a puncture hole stitching needle with sheath and hook line, as shown in the figures 3-5, which comprises a stylet 1 and a needle sheath 2, wherein the rear end of the needle point of the stylet 1 is provided with a hollow hook line groove 3, two sides of the hook line groove 3 are inwards sunken into arc shapes, and a needle seat 4 is arranged at one end of the stylet 1 away from the needle point; the needle sheath 2 comprises a rectangular seat 5 and a fixed tube 6, the fixed tube 6 is arranged on the rectangular seat 5, the fixed tube 6 is cylindrical, a through hole is formed in the matched position of the rectangular seat 5 and the fixed tube 6, the inner diameter of the through hole is the same as that of the fixed tube 6, the needle core 1 can be inserted into the needle sheath 2 and can slide along the needle sheath 2, and the thread hooking groove 3 is positioned outside the needle sheath 2 when the needle core 1 is completely inserted into the needle sheath 2; the other end of the needle seat 4 is provided with a pull ring 7; the length of the rear seat is greater than the diameter of the through hole; the needle point is of a triangular pyramid shape, and the length of the needle point is 3 mm; the length of the hollow groove of the wire hooking groove 3 is 6mm, the width of the groove is 0.4mm, and the notch is 2 mm; the needle core 1 is 150mm long and 0.8mm in diameter; the needle sheath 2 is 140mm long, and the fixed tube 6 is 1.5mm in outer diameter and 1.1mm in inner diameter.

When in specific use: when the combined needle core 1 and the needle sheath 2 are punctured into a body cavity from a subcutaneous puncture hole of a patient together, the needle point is triangular pyramid, the needle core 1 is fast inserted, a suture is hooked through the suture hooking groove 3 on one side of the needle point, the hollow groove length of the suture hooking groove 3 is 6mm, the groove width is 0.4mm, the groove opening 2mm can be firmly hooked after the suture is hooked, the stylet 1 is pulled successively through the pull ring 7, the thread hooking groove 3 is pulled into the fixed tube 6, the stylet 1 and the needle sheath 2 are pulled out, the thread hooking groove 3 can be effectively prevented from damaging human tissues in the process of pulling outwards, then the needle is punctured again to enter a body cavity, the other end of a suture line is hooked, knotted, a puncture hole is closed, after the use is finished, the suture line can be detached, and the suture line is disinfected after the detachment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A puncture hole stitching needle with a sheath and a hook line is characterized by comprising a needle core, a needle sheath and a needle seat, wherein a hollow hook line groove is formed in the rear end of a needle point of the needle core, two sides of the hook line groove are inwards sunken to form an arc shape, and the needle seat is arranged at one end, far away from the needle point, of the needle core;

2. The barbed wire needle with a sheath for piercing and suturing according to claim 1, wherein a pulling ring is provided at the other end of said needle holder.

3. The sheathed suture needle for puncturing a puncture hole according to claim 1, wherein a length of the needle holder is longer than a diameter of the through hole.

4. The needle with the sheath for suturing the puncture according to claim 1, wherein the needle tip is of a triangular pyramid shape and has a length of 3 mm.

5. The sheathed suture hooking needle for suturing a puncture according to claim 1, wherein the hollow groove of the suture hooking groove has a length of 6mm, a width of 0.4mm and a notch of 2 mm.

6. The barbed needle with a sheath for piercing through a puncture according to claim 1, wherein said core member has a length of 150mm and a diameter of 0.8 mm.

7. The needle with the sheath for suturing the puncture according to claim 1, wherein the needle sheath has a length of 140mm, the outer diameter of the fixing tube is 1.5mm, and the inner diameter thereof is 1.1 mm.