Needle point shielding type anti-backflow venous indwelling needle

A venous indwelling needle and anti-reflux technology, which is applied in the direction of needles and devices introduced into the body, can solve the problems of blood and external air contact pollution, blood reflux, etc., to reduce cross-infection and pollution, prevent blood reflux, and avoid blood reflux Effect

Inactive Publication Date: 2013-03-27
JIANGXI SANXIN MEDTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another disadvantage of existing indwelling needles is that blood backflow is prone to occur, which leads to pollution caused by contact between blood and outside air

Method used

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  • Needle point shielding type anti-backflow venous indwelling needle
  • Needle point shielding type anti-backflow venous indwelling needle
  • Needle point shielding type anti-backflow venous indwelling needle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] such as cutaway figure 1 As shown, the needle tip shielded anti-reflux venous indwelling needle assembly includes: needle tube 1, catheter 2, catheter seat front seat 3, catheter seat rear seat 6, needle core 4, reflux valve 5, needle tip shielding device including positioning block 7, double-wing needle seat 8. Guide groove 9. A detachable needle tip shielding device is installed at the rear end of the catheter base, and the needle tip shielding device is divided into three parts, which are respectively 7 parts of the positioning block, 9 parts of the guide groove and 8 parts of the double-winged needle holder. One end of the double-wing needle seat is assembled with the needle tube, and the other end is provided with a clamping position, which is convenient for clamping into the clamping ring to play a limiting role; the guide groove part is provided with a guide groove, which is convenient for indwelling needles. As the double-winged needle holder slides in the guid...

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PUM

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Abstract

The invention relates to a needle point shielding type anti-backflow venous indwelling needle, belonging to an infusion medical device; the needle point shielding type anti-backflow venous indwelling needle comprises the following accessories: a needle tube, a catheter, a catheter seat, a needle core, a reflux valve, a double-wing needle seat and a needle point shielding device. The venous indwelling needle is good in safety performance and convenient to operate, and the needle tube is completely protected in a guide slot after venipuncture, so that the medical workers or others are prevented from being hurt by the exposed needle tube, blood is prevented from flowing back, and the blood is avoided being polluted by contacting with the outside air.

Description

[0001] technical field [0002] The product of the invention relates to medical equipment and supplies, in particular to an intravenous indwelling needle used for intravenous infusion, blood transfusion, etc. of the human body. technical background [0003] The indwelling needle is generally used for clinical infusion of medicinal liquid to patients, because it has the advantages of reducing the number of blood vessel punctures, reducing exudate, and enabling rapid infusion of medicinal liquid, which is beneficial to alleviate the pain of patients and facilitate rescue. [0004] The disadvantage of the existing indwelling needle is that after venipuncture, the needle tube is pulled out, and the sharp needle tube after use will be exposed outside. Therefore, when cleaning and destroying the indwelling needle tube, it is easy to stab medical staff or other people, resulting in crossover. Infect. At present, the needle tip shielding indwelling needle is based on the addition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
Inventor 张志芬郑金路臧振中仇国华
Owner JIANGXI SANXIN MEDTEC
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