Thin wall catheter with reinforcing sleeve
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United States of America Patent
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Mar 10, 1998
Grant Date -
N/A
app pub date -
Feb 3, 1997
filing date -
May 18, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A diagnostic catheter comprises an inner layer of substantially unmodified polyamide over which is a reinforcing means and an outer layer of polymer having a hardness of 50 Shore D to 70 Shore D, along with a suitable radiopaque filler. Affixed either directly to the end of the above tubular body or to a stem member secured to that tubular body is a soft-tip formed from a blend of PEBA whose hardness is such that the catheter can be considered as having an atraumatic tip. The resulting catheter exhibits excellent torque and column strength characteristics while providing a relatively large diameter lumen for a given outside diameter.
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