Patent ID: 6696121
Filing Date: 2004-02-24
Classification: A61M,B29C,Y10T

Abstract:
A dilation balloon comprising a hard aromatic polyester segment and a soft aliphatic polyester segment and including a single layered block copolymer comprising:polybutylene terephthalate segment; and a soft segment selected from the group consisting of polyether glycol or polyester, wherein the balloon is formed by: positioning a preform tube in a precondition mold, the precondition mold having a precondition mold inner diameter; stretching and expanding the preform tube within the precondition mold to form a uniformly reduced parison; positioning the uniformly reduced parison in a balloon mold, the balloon mold having a balloon mold inner diameter which is larger than the precondition mold inner diameter; and stretching and expanding the parison within the balloon mold to form the balloon.