Method of balloon formation by cold drawing/necking

Details Method of balloon formation by cold drawing/necking Method of balloon formation by cold drawing/necking

1997-10-20

1998-09-15

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Differential temperature conditioning

264529, 264532, 604 96, 606194, B29C 4914, B29C 4918, B29C 4964

Patent

active

058075208

ABSTRACT:
A method for forming a balloon for a dilatation catheter involving the steps of extruding a segment of thermoplastic material, maintaining the center portion at a temperature below the glass transition of the thermoplastic material, drawing the segment to a predetermined length, wherein after the drawing the wall thickness of the center portion does not appreciably change, and expanding the segment in a mold to produce the balloon.

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