Catheter systems and methods for manufacture
AssigneeCovidien LP
InventorsDonald Shannon, Misty Coburn, Eric Rowson
Life of this patent
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Abstract
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.
Claims15
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.
A method for manufacturing a catheter, the method including:
- positioning a catheter about a mandrel, the catheter having an inner surface defining a lumen, the mandrel comprising at least first and second elongate members in an at least partial coiled or twisted assembled condition;
- treating the catheter whereby the first and second elongate members cause irregularities within the internal surface of the catheter;
- disassembling the mandrel, wherein disassembling the mandrel includes at least partially unwinding the first and second elongate members from the at least partial coiled or twisted assembled condition;
- and
- removing the catheter relative to the mandrel.
Dependencies are inferred from the claim text.