Fixed wire dilatation catheter with distal twistable segment

Details Fixed wire dilatation catheter with distal twistable segment Fixed wire dilatation catheter with distal twistable segment

1994-01-31

1997-01-14

Thaler, Michael H.

Surgery

Instruments

Internal pressure applicator

604 96, A61M 2510

Patent

active

055934196

ABSTRACT:
A fixed-wire type of balloon dilatation catheter has a small diameter and can be steered to and passed to and through narrow stenoses. The catheter has a balloon at its distal end which is collapsible to a low profile to enable it to be passed through the stenosis. The catheter includes a connection between the distal end of the balloon and the supporting core wire which displays the least resistance to twisting about the core wire when the core wire is rotated with respect to the balloon and the balloon is subsequently inflated. Consequently, any twisting of the catheter about the wire will occur distally of the balloon so as not to obstruct fluid flow through the balloon.

REFERENCES:
patent: 4483340 (1984-11-01), Fogarty et al.
patent: 4552127 (1985-11-01), Schiff
patent: 4917088 (1990-04-01), Crittenden
patent: 5417658 (1995-05-01), Loney et al.

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