INTRODUCER WITH SHEATH HAVING A WITHDRAWAL SUPPORT WIRE
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United States of America
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Issued Date -
Feb 20, 2020
app pub date -
Jun 27, 2019
filing date -
Jun 27, 2019
priority date (Note) -
Published
status (Latency Note)
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Abstract
An introducer includes a dilator received in a lumen defined by an introducer sheath and including a dilation end extending distally beyond a distal end of the introducer sheath. The introducer sheath includes a flat wire reinforcement having a hollow cylindrical shape sandwiched between an inner PTFE tube and an outer nylon tube. The outer nylon tube includes a distal segment that extends distally beyond the PTFE tube, which extends distally beyond the PTFE tube, which extends distally beyond the flat wire reinforcement. A withdrawal support wire has a distal end attached to a distal end turn of the flat wire reinforcement and extends in a proximal direction in parallel with a longitudinal axis between an outer surface of the nylon tube and an inner surface of the PTFE tube. The withdrawal support wire is configured to be in tension when the sheath is placed in tension to inhibit distal stretch separation breakage.
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