Catheter introducer sheath made of expanded polytetrafluoroethylene
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United States of America Patent
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Nov 19, 1991
Grant Date -
N/A
app pub date -
Jan 26, 1990
filing date -
Jan 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A catheter introducer comprises a tubular sheath for inserting and guiding a catheter into living tissue. In accordance with this invention, the sheath is typically made of expanded polytetrafluoroethylene, with a result that the catheter introducer sheath is highly flexible and non-kinking, but it also exhibits relatively high hoop strength so that burrs, notching, and kinking can be avoided as the catheter introducer is advanced through tissue while surrounding a dilator unit, to achieve advantages not found in prior art analogs.
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