Multiple sample needle assembly

Details Multiple sample needle assembly Multiple sample needle assembly

1981-07-30

1983-11-01

Howell, Kyle L.

Surgery

Truss

Pad

A61B 514

Patent

active

044125488

ABSTRACT:
A multiple sample needle assembly useful in collecting fluid samples from a source includes a housing with a chamber therein. A first cannula, in fluid communication with the chamber, is provided for insertion into a fluid source. A second cannula is movably positioned in the housing and communicates with the chamber. A flow mechanism inside the chamber prevents fluid from flowing from the chamber into the second cannula. This flow mechanism is operatively responsive to inward movement of the second cannula to allow fluid to flow from the chamber into the second cannula for collection therefrom.

REFERENCES:
patent: 4166450 (1979-09-01), Abramson

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