Catheter introducer with fluid chamber valve
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United States of America Patent
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-
Oct 24, 1995
Grant Date -
N/A
app pub date -
Apr 19, 1994
filing date -
Apr 19, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A catheter introducer comprises a tubular sheath having an axis, and a housing carried on one end of the sheath. The housing encloses a fluid-filled chamber and carries a pair of valves aligned along the axis, the valves being at opposed ends of the fluid-filled chamber and communicating therewith. The valves serve to substantially retain the fluid within the housing, while allowing a catheter to pass through the valves and through the tubular sheath. The fluid of the chamber is preferably a gel or high viscosity liquid. The valves and fluid-filled chamber prevent the backflow of blood both in the presence and the absence of a catheter or the like extending through the valves and chamber.
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