Method of making a distensible dilatation balloon using a block

Details Method of making a distensible dilatation balloon using a block Method of making a distensible dilatation balloon using a block

1992-09-30

1996-03-19

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

604 96, 606194, A61M 2902, B29C 4910

Patent

active

055001807

ABSTRACT:
Balloons and balloon catheters with a superior overall combination of distensibility, elastic stress response and strength. The improved properties of the balloons result from the method or process used to form the balloons, as well as the polymeric materials used in said balloon forming process. Additionally, the enhanced combination of properties of the balloons will not be adversely affected by the novel sterilization process contemplated by this invention. A process for forming a balloon involves providing a parison of a block copolymer, subjecting the parison to at least one axial stretch step and at least one radial expansion step, and heating the expanded parison to a temperature below the melting temperature of the block copolymer.

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