Atherectomy catheter

Details Atherectomy catheter Atherectomy catheter

Filed on

1987-10-23

Date issued

1989-08-15

Examiner

Thaler, Michael H.

Patent Class

Surgery

SubClass

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

SubSubClass

With means for cutting, scarifying, or vibrating tissue

Other Related Categories

128305, A61B 1732

Type

Patent

Status

active

Patent number

048570451

Description

ABSTRACT:
A catheter for facilitating the restoration of patency to a blood vessel occluded with an atheroma or other similar lesion or thrombus comprising an outer flexible plastic tubular member having a plurality of ports proximate its distal end and concentrically surrounding an inner flexible plastic tubular member having a cutting loop at its distal end. The distal end portion of the inner tubular member is journaled for rotation in the distal end portion of the outer tubular member. A motor is provided at the proximal end of the catheter assembly for rotatably driving the inner tubular member and the cutting loop thereof while flushing the treatment site and aspirating the flushing liquid, blood and any debris loosened during the procedure.

REFERENCES:
patent: 4167943 (1979-09-01), Banko
patent: 4167944 (1979-09-01), Banko
patent: 4203444 (1980-05-01), Bonnell et al.
patent: 4445509 (1984-05-01), Auth
patent: 4589412 (1986-05-01), Kensey
patent: 4631052 (1986-12-01), Kensey
patent: 4681106 (1987-07-01), Kensey et al.
patent: 4686982 (1987-08-01), Nash
patent: 4696667 (1987-09-01), Masch
patent: 4732154 (1988-03-01), Shiber

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