Large diameter delivery catheter/sheath
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United States of America Patent
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Apr 27, 2010
Grant Date -
Nov 4, 2004
app pub date -
Apr 13, 2004
filing date -
Apr 14, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A large diameter delivery catheter or sheath for percutaneous delivery of a contained and implantable medical device in the vasculature of a patient. The delivery catheter or sheath includes a reinforcement such as a flat wire coil with uniform spacing between the turns. The reinforcement is compression fitted about an inner, lubricous PTFE tube having a substantially uniform inner diameter of from 16 to 30 French. The delivery catheter or sheath further includes an outer tube of a heat formable polyamide material having a durometer of about 30 to 60 on the Shore D scale. The outer tube is heat formed and compressed through the spaces between the turns of the wire coil to mechanically connect to a roughened outer surface of the inner tube. A polymeric radiopaque marker tube may be positioned at the distal end of the coil and between the inner and outer tubes for radiographic visualization.
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