Safety vacuum syringe with two opposite needles for blood sampli

Details Safety vacuum syringe with two opposite needles for blood sampli Safety vacuum syringe with two opposite needles for blood sampli

1997-04-18

1998-05-19

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604195, 128763, A61M 500

Patent

active

057529361

ABSTRACT:
The present invention relates to a safety vacuum syringe with two opposite needles for blood sampling, which mainly comprises a cylindrical barrel, a bell type sleeve, a needle unit, a cylindrical vacuum container, a snapping member, a needle cap, and a bottom cap. When it is desired to sample blood, the vacuum container is pushed into the barrel through the back end thereof, so that the snapping member will be hooked with the bell type sleeve, After finished of the blood sampling, the vacuum container stored with blood is pulled out of the barrel, and the bell type sleeve with the needle unit will be pulled into the barrel, the needle cap and the bottom cap are then recversely inserted into the barrel for bending the needles to be damaged. Alternately, the needle cap can be extended further to form a tube having a tube opening at top end thereof for accommodating said front needle when said needle cap is revesely inserted into said barrel, and the bottom cap is provided with a recessed part at the bottom surface thereof, when said bottom cap is reversely inserted into said barrel, said back needle can be accommodated within said recessed part.

REFERENCES:
patent: 4838863 (1989-06-01), Allard et al.
patent: 5374250 (1994-12-01), Dixon
patent: 5423758 (1995-06-01), Shaw

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