Shell self locking disposable safety automatic blood taking needle

Shell self locking disposable safety automatic blood taking needle

  • CN 2,705,119 Y
  • Filed: 04/16/2004
  • Issued: 06/22/2005
  • Est. Priority Date: 04/16/2004
  • Status: Active Grant
First Claim
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1. , a kind of housing self-locking type disposable safe automatic blood-taking needle, comprise housing, nook closing member and spring, housing constitutes an ejection chamber of taking pin hole out of, nook closing member is located in the ejection chamber, and penetrate structure by spring and card and constitute ejection structure, it is characterized in that:

  • penetrate structure by percussion and be located on the housing, self-locking structure constitutes by penetrating by percussion on barb set on the structure and the housing should barb set latch nook or self-locking ports cooperated, and latch nook or self-locking ports are positioned on the movement locus in barb the place ahead.

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