Infusion guidewire including proximal stiffening sheath
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United States of America Patent
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-
Feb 9, 1993
Grant Date -
N/A
app pub date -
Jan 18, 1991
filing date -
Jan 18, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible elongated medical infusion guidewire having proximal and distal portions for delivering a pressurized fluid medicaments to a site with a body vessel. The guidewire is comprised of a helically wound coil having a polyimide sheath tightly enclosing its proximal portion, and a teflon sheath tightly covering the entire wire coil. The teflon sheath is punctured at its distal end to facilitate release of fluid therethrough. The coil is closed at its distalmost end by a ball weld.
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