Puncture needle head with edge sides and visual puncture needle

A puncture needle and edge technology, applied in the field of puncture device, can solve the problems of high potential risk of visceral tissue, complex product structure, large tissue damage, etc., and achieve the effect of shortening operation time, simple structure and reducing injury

Pending Publication Date: 2019-10-29
VHMED NANTONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of the blunt needle is that it can reduce the damage to the tissue during the puncture process. The disadvantage is that the puncture resistance is large and the operation is inconvenient. The risk is high; the bladed needle is a design between the former two, but the blade generally has a sharp edge, so the advantages and disadvantages are the same as the bladed needle
[0003] At the same time, most of the needle tubes of visible puncture needles currently on the market have process holes. Although a sealing structure is added in the needle cover, the product structure becomes complicated and there is a risk of air leakage

Method used

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  • Puncture needle head with edge sides and visual puncture needle
  • Puncture needle head with edge sides and visual puncture needle
  • Puncture needle head with edge sides and visual puncture needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 Shown is a schematic view of the structure of the puncture needle with a blade edge in Embodiment 1. The edged puncture needle 31 includes a positioning head 310 , two double edged edges 311 and a tapered guide body 312 . The positioning head 310 is located at the front end of the tapered guide body 312 , and the two double-edged edges 311 are symmetrically arranged on the outer surface of the tapered guide body 312 . In this embodiment, the four cutting edges of the two double-edged edges 311 are all round cutting edges 3110 .

[0038] Such as figure 2 with 3 Shown is a schematic diagram of the visible puncture needle of the present invention. The puncture needle 1 includes a needle cover 10 , a fixing ring 20 and a needle tube 30 .

[0039] Such as Figure 4 As shown, the needle cover 10 has a connecting ring 100, an outer ring 102 and a needle cover hole 103; the connecting ring 100 is arranged on the inner surface of the outer ring 102 and ha...

Embodiment 2

[0046] Such as Figure 8 Shown is a schematic view of the structure of the puncture needle with the edge of the second embodiment. The edged puncture needle 31 includes a positioning head 310 , two double edged edges 311 , a tapered guide body 312 and a protective body 313 . The positioning head 310 is located at the front end of the tapered guide body 312 , two double-edged edges 311 are symmetrically arranged on the outer surface of the tapered guide body 312 , and the protection body 313 is located at the rear end of the tapered guide body 312 . In this embodiment, the four cutting edges of the two double-edged edges 311 are all round cutting edges 3110 . Setting the protective body 313 can further reduce the damage to the tissue caused by the double-edged edge 311, and can also increase the sealing between the abdominal wall tissue and the puncture tube.

Embodiment 3

[0048] Such as Figure 9Shown is a schematic view of the structure of the puncture needle with the edge of the embodiment 3. The edged puncture needle 31 includes a positioning head 310 , two double edged edges 311 , a tapered guide body 312 , a protective body 313 and a positioning guide body 314 . The positioning guide body 314 is located at the front end of the tapered guide body 312, the positioning head 310 is located at the front end of the positioning guide body 314, two double-edged edges 311 are symmetrically arranged on the outer surface of the tapered guide body 312, and the protective body 313 is positioned at the front end of the tapered guide body 312. The rear end of the body 312. In this embodiment, the four cutting edges of the two double-edged edges 311 are all round cutting edges 3110 . Setting the protective body 313 can further reduce the damage to the tissue caused by the double-edged edge 311, and can also increase the sealing between the abdominal wal...

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PUM

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Abstract

The invention discloses a puncture needle head with edge sides. The puncture needle head comprises a positioning head, at least two double-edge sides and a guiding body, wherein the positioning head is located at the front end of the guiding body; the double-edge sides are arranged on the outer surface of the guiding body; and edge openings of the double-edge sides of the syringe needle are circular edge openings, or a part of the double-edge sides are circular edge openings, and a part of the double-edge sides are angle edge openings. The invention also discloses a visual puncture needle. Thevisual puncture needle comprises the puncture needle head. The visual puncture needle disclosed by the invention is simple in structure, convenient to use and good in sealing property; and the puncturing resistance that the puncture needle is inserted in the abdomen can be effectively reduced, damage caused by the puncturing process is reduced, the operation time can be shortened, and the operation risk can be reduced.

Description

technical field [0001] The invention relates to the technical field of puncture devices, in particular to a puncture needle with a blade edge and a visible puncture needle. Background technique [0002] The popularity rate of minimally invasive surgery in clinical operations is getting higher and higher, and the trocar is a necessary medical device in minimally invasive surgery. The needle is an integral part of the trocar, and the visible needle is the most commonly used one. At present, the needles of puncture needles on the market are mainly divided into three types: the first is a blunt needle, the second is a needle with a blade, and the third is a needle with a knife. The advantage of the blunt needle is that it can reduce the damage to the tissue during the puncture process. The disadvantage is that the puncture resistance is large and the operation is inconvenient. The risk is high; the bladed needle is a design between the former two, but the blade generally has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3417A61B2017/346
Inventor 王海鹰李韬梁小军谭庭甲
Owner VHMED NANTONG CO LTD
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