Catheter systems and methods for manufacture

摘要

A method for manufacturing a catheter, includes forming a mandrel by arranging at least first and second elongate members in an at least partial longitudinal juxtaposed relation with respect to a longitudinal axis defined by the mandrel, mounting an inner liner having an internal surface about the mandrel, treating the inner liner whereby the first and second elongate members of the mandrel cause irregularities within the internal surface of the inner liner, positioning an outer member about the inner liner and removing at least the inner liner from the mandrel, thereby forming a catheter having the inner liner with irregularities.

主权项

1. A method for manufacturing a catheter, the method comprising:
mounting an inner liner having an internal surface about a mandrel, the mandrel comprising first and second elongate members each at least partially wound relative to each other and about a longitudinal axis defined by the mandrel; treating the inner liner whereby the first and second elongate members of the mandrel cause irregularities within the internal surface of the inner liner; positioning an outer member about the inner liner; and removing at least the inner liner from the mandrel, wherein removing the inner liner includes at least partially unwinding the first and second elongate members relative to each other and the longitudinal axis, wherein a catheter is formed having the inner liner with irregularities.