Safety valve for preventing air embolism and hemorrhage
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 13, 1982
Grant Date -
N/A
app pub date -
Jun 20, 1980
filing date -
Jun 20, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety valve for catheterization procedures is characterized by a piston having an internal flow path, a portion of the piston being surrounded by an elastomeric member which surrounds a portion of the piston and biases it to a closed position. The elastomeric member also severely restricts fluid flow around the piston to eliminate any flow path other than the internal piston flow path.
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