Surgical pumping operation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 21, 1982
Grant Date -
N/A
app pub date -
Feb 23, 1981
filing date -
Feb 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A perfusion pump comprising an assembly of inner and outer tubes interconnected by a field of perforations, a chamber configured to closely contain the tube assembly, valving apparatus for substantially closing the ends of the inner tube by compression against the chamber, and sources of positive and negative pressure gas selectively applicable against the wall of the outer tube.
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