Catheter with composite stiffener
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United States of America Patent
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Nov 27, 2012
Grant Date -
Jul 14, 2011
app pub date -
Mar 10, 2011
filing date -
Jun 11, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.
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