Guiding catheter tip having a tapered tip with an expandable lum

Details Guiding catheter tip having a tapered tip with an expandable lum Guiding catheter tip having a tapered tip with an expandable lum

1994-04-28

1995-09-05

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61M 2902

Patent

active

054475031

ABSTRACT:
An angioplasty system including a guiding catheter for inserting into and traversing a human blood vessel. The guiding catheter receives and guides a balloon catheter and/or a PTCA guidewire into an area to be treated in a blood vessel. The catheter has an elongate body with a proximal end and a distal end and is made out of a flexible and dimensionally stable material to afford an expandable lumen and spring properties at the distal end. The distal end has a longitudinal slot for enabling one side wall portion of the catheter wall to slide under the other side wall portion for achieving partially overlapping catheter wall portions and for creating a spiral fold tip. The spiral fold tip is tapered to facilitate movement of the tip through a blood vessel.

REFERENCES:
patent: 3228846 (1966-01-01), Bryan
patent: 4581025 (1983-11-01), Timmermans
patent: 4850975 (1989-07-01), Furukawa
patent: 4893623 (1990-01-01), Rosenbluth
patent: 4899729 (1990-02-01), Gill et al.
patent: 4912733 (1990-03-01), Gluntz
patent: 4920954 (1988-08-01), Alliger et al.
patent: 4921479 (1990-05-01), Grayzel
patent: 5211654 (1993-05-01), Kaltenbach

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