Battery operated multifunction ultrasonic wire for angioplasty

Details Battery operated multifunction ultrasonic wire for angioplasty Battery operated multifunction ultrasonic wire for angioplasty

1994-08-15

1995-09-19

Aschenbrenner, Peter A.

Surgery

Instruments

606169, 604 22, A61B 1732

Patent

active

054512204

ABSTRACT:
An ultrasonic angioplasty apparatus includes an ultrasonic generator which is coupled to a segmented wire that includes a relatively stiff portion, a more flexible portion and an extremely flexible portion. Ultrasonic energy, which is coupled to an end of the relatively stiff portion, reduces friction between the wire and an interior arterial vessel wall and whip-like motion of the extremely flexible portion allows the wire to pass high grade occlusions and plaque build-ups. The ultrasonic generator has a selectable range of operating frequencies which allow whip-like motion of the end of the wire, or alternatively directing ultrasonic cavitational forces into vessel wall to remove plaque build-up.

REFERENCES:
patent: 3584327 (1971-06-01), Murry
patent: 5112300 (1992-05-01), Ureche
patent: 5163421 (1992-11-01), Bernstein
patent: 5195954 (1993-03-01), Schnepp-Pesch et al.
patent: 5382228 (1995-01-01), Nita et al.

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