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Novel artery puncture trocar

A technology of arterial puncture and trocar, which is applied in the field of medical devices to achieve pain relief, high puncture success rate, and safe puncture

Inactive Publication Date: 2011-07-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing puncture needle needs to be re-punctured when the needle tube is damaged, and provides a new arterial puncture trocar that does not need to be re-punctured when the needle tube is damaged.

Method used

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Examples

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Embodiment Construction

[0015] refer to Figure 1-3 , a novel arterial puncture trocar, comprising a needle tube 1 and a needle core 2, one end of the needle core 2 is connected with a detachable needle handle 3, and the needle handle 3 is connected with a needle core cap 4; the needle tube 1 is replaceably worn outside the needle core 2, and the needle tip of the needle core 2 is exposed outside the needle tube 1.

[0016] The diameter of the needle tube 1 is 1.1mm, and its length is 48mm-63mm.

[0017] The needle tube 1 is 1.5 mm shorter than the needle core 2 .

[0018] The technical idea of ​​the present invention is to make the needle tube 1 into various specifications, and the length of the needle tube 1 can be 48mm, 53mm, 58mm, or 63mm. Needle tubes of different lengths solve the problems that the puncture needle often encounters during femoral artery puncture slips and is difficult to fix, making femoral artery puncture safer and more convenient.

[0019] Since the needle core 2 and the ne...

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PUM

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Abstract

The invention relates to a novel artery puncture trocar, which comprises a needle tube and a core, wherein one end of the core is connected with a detachable handle, and a core cap is connected on the handle; the needle tube can be penetratively sleeved outside the core in a replaceable way, and tip of the core is exposed out of the needle tube. The novel artery puncture trocar has the beneficial effects of high puncture success ratio, and safer and more convenient puncture.

Description

technical field [0001] The invention relates to a medical device, in particular to a novel arterial puncture trocar which can be used for radial artery and femoral artery puncture. Background technique [0002] At present, the radial artery puncture catheter is often used in clinical monitoring of direct arterial blood pressure, and the puncture needle is a 20GA trocar. In case of massive bleeding, emergency rescue, etc., the radial artery cannot be touched or dissected aneurysm, etc. It is necessary to open the lower extremity artery (often the femoral artery). Because of the deep position of the femoral artery, the part of the 20GA trocar entering the blood vessel is limited, and the puncture needle often slips and is difficult to fix. However, there is currently no dedicated femoral artery puncture needle. In addition, during puncture, it is often encountered that the blood return of the needle core is very good, but the needle tube is damaged and hairy and cannot be inse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
Inventor 徐建红
Owner ZHEJIANG UNIV
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