Dilatation catheter

Details Dilatation catheter Dilatation catheter

1985-11-26

1987-11-17

Thaler, Michael H.

Surgery

Truss

Pad

1283481, 604282, A61M 2902

Patent

active

047066709

ABSTRACT:
A balloon catheter for use in angioplasty and the like includes a shaft made of an elastomeric tube reinforced with longitudinally inelastic filaments. In the distal balloon portion of the unpressurized shaft, the filaments lie at an angle which is less than a predetermined critical angle. In the adjacent movable portion of the shaft, the filaments lie at an angle which is greater than the critical angle. When the shaft is pressurized, the balloon portion expands in diameter and the balloon portion contracts in diameter until the filaments in each portion lie at the critical angle. At the same time, the length of the movable portion increases so as to offset the reduction in length of the balloon portion.

REFERENCES:
patent: 3924632 (1975-12-01), Cook
patent: 4024873 (1977-05-01), Antoshkiw et al.
patent: 4299226 (1981-11-01), Banka
patent: 4327736 (1982-05-01), Inoue
patent: 4553959 (1985-11-01), Hickey et al.

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