Multilayer Medical Balloon

摘要

An expandable medical balloon including an inner layer formed of a poly (ether-block-amide) copolymer and an outer layer formed of a polyamide, the expandable medical balloon having a burst strength of greater than 50,000 psi, and to methods of making and using the same.

主权项

1. A method of making an expandable medical balloon, the expandable medical balloon having an inner layer fanned of a poly(ether block amide) copolymer; and an outer layer fanned of a polyamide; the method comprising:
forming a tubular parison, the tubular parison comprising the inner layer formed of a poly(ether-block-amide) copolymer and the outer layer formed from a polyamide; longitudinally stretching the tubular parison at a stretch ratio of less than 4.0; and radially expanding the tubular parison in a balloon mold to form the expandable medical balloon.