Safe medical needle head and processing method thereof

A processing method and safety technology, applied in the direction of needles, instruments introduced into the body, etc., to achieve the effects of reducing pain, facilitating industrialization, and smooth needle insertion

Active Publication Date: 2009-02-04
华创安全医疗科技(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, there is an urgent need to improve the structure of existing medical needles, so as to eliminate the health hazards caused by disposable injection needles from the source.

Method used

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  • Safe medical needle head and processing method thereof
  • Safe medical needle head and processing method thereof
  • Safe medical needle head and processing method thereof

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Experimental program
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Effect test

Embodiment Construction

[0030] The invention is a safe medical needle obtained by improving the existing needle insertion structure.

[0031] Existing configuration needles, see figure 1 As shown, the first bevel 1' close to the rear end of the needle tube and the second bevel 2' close to the needle tip jointly constitute the liquid outlet part of the needle, wherein the axial length of the first bevel 1' is L1', and the axis of the second bevel 2' The direction length is L2', and L1'≥L2'.

[0032] The inventor realized in the research that: when the needle head of the existing structure is in use, the second bevel 2' is used for puncturing, and the human body tissue will not be pulled into the needle tube, and the needle entry area of ​​the first bevel 1' (by the inside and outside of the steel pipe). Surrounding formation) is larger than the needle entry area of ​​the second bevel 2', so that the first bevel 1' will generate greater needle insertion resistance during the needle insertion process, ...

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PUM

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Abstract

The invention discloses a safe medical needle comprising a needle tubule. A second inclined plane and a first inclined plane are positioned at the front end of the needle tubule, and the axial length L1 of the first inclined plane is shorter than the axial length L2 of the second inclined plane; the length L2 of the second inclined plane is preferably 65-75% of the total length L of the two inclined planes, and a small concave arc extending backwards is positioned at an inner point of the needle on the first inclined plane, and the inner point is adjacent to the top end of the arc line. Based on the structure of the former needle, the length L2 of the second inclined plane extends towards the first inclined plane, and a small concave arc is formed on the top end of the arc line of the inner point of the needle by fine grinding, sand blasting or laser beam heat treatment, thus the resistance against insertion of the needle head is reduced, absolute safety is ensured as human organism is not affected, needle insertion is more smooth, amount of bleeding is reduced, and pains of patients can be relieved. The medical needle is a really safe medical needle and can replace all the existing medical needles used in various situations.

Description

technical field [0001] The present invention relates to a medical device, in particular to a medical needle and a processing method thereof, especially a safe medical needle which does not remove various tissues of a human body during injection and needle insertion. Background technique [0002] As we all know, injection needles are widely used as an important medical device for treating human diseases. However, because of its design and processing defects, it poses a great threat to human health. [0003] Traditional medical needles have huge potential hazards. A large number of experimental studies have found that most of the existing single-use traditional needles of different types will form injection wounds when injecting infusions and blood transfusions, and the skin tissue, muscle tissue, fat tissue and vascular lumen tissue under the wound Etc., granular or linear tissue debris will be formed under the action of the opening of the needle, and they will be pushed in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
Inventor 孙丽杜苏鹏卞恩淮
Owner 华创安全医疗科技(广东)有限公司
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