Catheter assembly with plaque cutting balloon

Details Catheter assembly with plaque cutting balloon Catheter assembly with plaque cutting balloon

2007-12-04

2007-12-04

Hayes, Michael J. (Department: 3734)

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

C606S170000, C030S287000

Reexamination Certificate

active

11319974

ABSTRACT:
A balloon catheter assembly comprises an elongate catheter shaft having a proximal portion and a distal portion, and an inflatable balloon secured to the shaft distal portion. A plurality of cutters are arranged along an outer surface of the balloon. The cutters are shielded by folds of the balloon when the balloon is uninflated, and are arranged and configured to facilitate breakdown of a vascular restriction when said balloon is inflated. Preferably, the cutters are arranged in at least three generally parallel longitudinal rows along the balloon outer surface, and there are at least three longitudinally-aligned cutters in each row. Preferably, the cutters are formed of the same or a similar base composition as the balloon, and are bonded to the balloon outer surface.

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