Valved blood sampling device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 28, 1981
Grant Date -
N/A
app pub date -
Nov 2, 1978
filing date -
Nov 11, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cannula for blood extraction with a controllable flow includes an injection cannula and a discharge cannula interconnected by a flexible tube wherein the tube is capable of being squeezed tight between the cannulae by a mechanism which applies pressure to the exterior of the flexible tube, the pressure applying mechanism and the tube serving as a valve between the cannulae.
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