Anhcounter flow arteria resin retaining needle

Anhcounter flow arteria resin retaining needle

  • CN 2,708,912 Y
  • Filed: 07/21/2004
  • Issued: 07/13/2005
  • Est. Priority Date: 07/21/2004
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of anti-reverse mobile venous detaining needle, comprise calparine cap (7), needle tubing (1), needle tubing seat (2), casing seat (4) and be installed in the sleeve pipe (3) of casing seat (4) front end, casing seat (4) center is axially arranged with the die cavity that matches with needle tubing seat (2) front end, die cavity and sleeve pipe are provided with communication passage between (3), it is characterized in that:

  • described communication passage inwall is provided with that subtend sleeve pipe (a

         3) direction is extended and at the anti-reverse valve of the lamellar communication passage central involution, wedgewise (5), the zygonema place is left wire the cracking of described anti-reverse valve (5).

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