Balloon catheter with multiple distensibilities

Details Balloon catheter with multiple distensibilities Balloon catheter with multiple distensibilities

1996-11-13

1999-12-21

Dawson, Glenn K.

Surgery

Instruments

Internal pressure applicator

604 96, A61M 2900

Patent

active

060043393

ABSTRACT:
A balloon is disclosed that has two differing rates of distensibility. It can be used to perform angioplasty by taking advantage of its high strength and relatively low distensibility up to a predetermined range of pressure and still be used to set a stent by operating a pressure range where there is a higher distensibility. the balloon can be of a single material that is oriented less than fully or a blend of materials similarly oriented. In another embodiment, strands of a more crystalline material run longitudinally through a matrix of a less crystalline material, with the resulting balloon, when not fully biaxially oriented, exhibiting high burst strength and two different rates of distension at different applied inflation pressures.

REFERENCES:
patent: 5348538 (1994-09-01), Wang et al.
patent: 5447497 (1995-09-01), Sogard et al.
patent: 5554120 (1996-09-01), Chen et al.
patent: 5645789 (1997-07-01), Roucher

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