Disposable needle for venous blood specimen collection (anti-reflux type)

The invention relates to the field of medical appliances, in particular to a disposable needle for venous blood specimen collection (anti-reflux type), comprising a venous puncture needle with a shank, a flexible tube and a needle holder; a one-way valve fixing block is arranged in a cavity of the n...

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Bibliographic Details
Main Author LIU ZHENKUAN
Format Patent
LanguageChinese
English
Published 08.12.2017
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:The invention relates to the field of medical appliances, in particular to a disposable needle for venous blood specimen collection (anti-reflux type), comprising a venous puncture needle with a shank, a flexible tube and a needle holder; a one-way valve fixing block is arranged in a cavity of the needle holder and is fitted with a latex one-way valve; the tail end of the flexible tube is fitted to a blood inlet of the one-way valve fixing block in inserted manner; a tube plug puncture needle for connecting a negative pressure blood-collecting container is fitted to a tail blood outlet of the needle holder in an inserted manner, and the tube plug puncture needle is sleeved with a latex protective sleeve. The needle holder with the latex one-way valve arranged inside is provided herein; in venous blood collection for a human body, the latex one-way valve is opened; after the blood collection, the negative pressure blood-collecting container is pulled out, and the latex one-way valve is closed accordingly; ther
Bibliography:Application Number: CN20171748870