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Medical suture needle

A suture needle, a technology for medical use, applied in the field of medical suture needles, can solve problems such as large resistance, achieve the effect of increasing the number, good piercing performance, and preventing crushing or bending

Inactive Publication Date: 2012-05-30
MATSUTANI SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the resistance when the needle tip penetrates the living tissue becomes larger

Method used

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  • Medical suture needle
  • Medical suture needle
  • Medical suture needle

Examples

Experimental program
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Effect test

Embodiment 1

[0038] based on figure 1 Examples of the medical suture needle of the present invention will be described. figure 1 The shown suture needle A has a needle point 1 formed at the front end, a tapered portion 2 is formed continuously with the needle point 1 , and a needle body portion 3 is formed continuously with the tapered portion 2 . In addition, the end portion of the needle body portion 3 is formed as a tail portion 4 on the end surface, and a fixing hole 5 for attaching a suture thread (not shown) is formed in the tail portion 4 .

[0039] The suture needle A of the present embodiment adopts a material in which an austenitic stainless steel wire is cold-drawn at a preset reduction rate (pre-set reduction rate) to exhibit work hardening, and the austenitic stainless steel Body tissue stretched into a fibrous material. Therefore, the blank of the suture needle A is formed into a round bar shape. In addition, the suture needle A is configured as a curved needle called a ha...

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PUM

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Abstract

The medical suture needle (A) wherein the needle tip (1) to be thrust into a biomedical tissue is formed at the tip is characterized in that the dimension (d) of the needle tip (1) in the direction of the thickness of the material of the medical suture needle has a value not larger than 5% of the thickness (D) of the material of the medical suture needle. The limit of crush or bend occurring at a needle tip is extended or the strength of a needle tip portion is improved without having a bad influence on operation performed by a medical doctor in a suture surgery.

Description

technical field [0001] The present invention relates to a medical suture needle capable of maintaining low piercing resistance and achieving high strength. Background technique [0002] Among medical suture needles used for suturing living tissue, there are needles called round needles and needles called guides. The cross-sectional shape of the body is a needle having a circular, triangular, quadrilateral, flat shape, etc., and the needle is a polygon including a triangle and has cutting edges formed on a plurality of ridges. The round needle also includes a blunt needle with a blunt front end, which passes through the tissue by pressing it away after the needle tip penetrates the tissue of the body. In addition, the guideline passes through the living tissue while incising the tissue after being pierced by the needle point. Therefore, the most suitable medical suture needle is selectively used according to the properties of the site to be sutured or other conditions. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/06
CPCA61B17/06066A61B2017/00526A61B2017/0608
Inventor 加藤一明
Owner MATSUTANI SEISAKUSHO CO LTD
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