초록 ▼

A non-coextrusion process for making multi-layer angioplasty balloons involves pre-forming separate parisons and then concentrically disposing the plural parisons to form a composite parison which is then subjected to a blow-molding process. The resulting balloon can have its properties tailored by

A non-coextrusion process for making multi-layer angioplasty balloons involves pre-forming separate parisons and then concentrically disposing the plural parisons to form a composite parison which is then subjected to a blow-molding process. The resulting balloon can have its properties tailored by appropriate selection of the particular plastics to be used for the multiple parisons.

대표청구항 ▼

A method of manufacturing a multi-layer expander member for an angioplasty catheter comprising the steps of: a) preforming a first tubular parison of a polymeric material having first physical properties; b) preforming a second tubular parison of a polymeric material having second physical propertie

A method of manufacturing a multi-layer expander member for an angioplasty catheter comprising the steps of: a) preforming a first tubular parison of a polymeric material having first physical properties; b) preforming a second tubular parison of a polymeric material having second physical properties; c) later disposing one of said first and second preformed tubular parisons over the other of said first and second preformed tubular parisons to form a composite parison; d) heating said composite parison to a predetermined temperature; and e) blow-molding said composite parison in a mold having a cavity of a predetermined length and radial dimension to bond the polymeric material comprising the first tubular parison to the polymeric material comprising the second tubular parison in forming said multi-layer expander member.