Femoral arterial cannula
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United States of America Patent
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-
Jul 31, 1990
Grant Date -
N/A
app pub date -
Aug 29, 1988
filing date -
Aug 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arterial cannula is formed with an angled shoulder that limits the degree of insertion of cannula tip into an artery. The shoulder also forms a seal with the artery. Suture flaps are formed on the cannula to attach the cannula to the patient's skin. A stylet for the cannula has a stop on its exterior that prevents blood flow between the cannula and the stylet, and permits clamping of the cannula with the stylet partially withdrawn. A removable anti-backflow ring seals the cannula and provides a convenient initial movement limit for the stylet stop.
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