Stretch-blow molding method for manufacturing balloons for medic

Details Stretch-blow molding method for manufacturing balloons for medic Stretch-blow molding method for manufacturing balloons for medic

1989-12-19

1991-05-21

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Differential temperature conditioning

264530, 264532, 264235, 425526, 425529, 425530, 425534, B29C 4910, B29C 4916, B29C 4918

Patent

active

050173251

ABSTRACT:
Apparatus and methods for forming dilatation balloons and catheters including same are provided. The balloons are fabricated of a biaxially orientable material such as a nylon or a polyamide material, and they have an inflated, non-distended working profile as well as a stretched inflated profile which is achieved by applying pressure through a dilatation catheter or the like that is in excess of that needed to achieve the inflated, non-distended profile and which is adequate to effect dilatation or the like up to a maximum pre-bursting pressure application. The maximum pre-bursting size of the balloon can be tailored depending upon the needs of the particular balloon within a wide range of possible maximum pre-bursting sizes. The apparatus and methods facilitate fabrication of the balloons which are subjected to longitudinal elongation or axial orientation and biaxial or radial orientation.

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