Percutaneous venous cannula for cardiopulmonary bypass
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United States of America Patent
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-
Feb 28, 1989
Grant Date -
N/A
app pub date -
Jul 29, 1987
filing date -
Jul 29, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cardiovascular catheter for use particularly in situations requiring varying forms of cardiopulmonary bypass. The catheter which can be introduced percutaneously has an expandable section in proximity to drainage inlets. In one form of the invention the catheter is introduced percutaneously with the expansion means collapsed after the cannula has been introduced percutaneously through the vein into the right atrium the expansion means is employed to prevent the atrium from collapsing around and possibly impeding flow through the cannula, for instance during percutaneous initiation of cardiopulmonary bypass or other venous drainage application.
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