Catheter introducer having toroidal valve
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United States of America Patent
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Jul 21, 1998
Grant Date -
N/A
app pub date -
Nov 6, 1995
filing date -
Nov 6, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A catheter introducer defines a tubular sheath with a housing on one end thereof, with the housing enclosing a fluid-filled, elastic-walled toroidal member defining a central aperture aligned with the tubular sheath axis. The central aperture is normally closed, being retained in the closed position by an elastic sleeve carried by the toroidal member. The central aperture is penetrable by a catheter in sealing manner as the catheter is advanced through the catheter sheath introducer.
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