Guidewire atherectomy catheter and method of using the same

Details Guidewire atherectomy catheter and method of using the same Guidewire atherectomy catheter and method of using the same

1993-09-09

1994-10-25

Thaler, Michael H.

Surgery

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

With means for cutting, scarifying, or vibrating tissue

606159, A61B 1722

Patent

active

053584724

ABSTRACT:
An atherectomy catheter device includes an improved guidewire system including a guidewire port member secured to the distal tip portion of the outer tubular member of an atherectomy catheter of the coaxial type having large and small concentrically disposed elongated flexible tubular members with a rotating cutter member fixed to the distal end of the inner tubular member. The guidewire is spaced from the cutter head yet controls the cutter disposition relative to the vessel lumen of interest. The inner and outer tubular members are constructed to simultaneously provide flushing liquid and aspirate the cutting site. A method of using the improved catheter is also disclosed.

REFERENCES:
patent: 4207874 (1980-06-01), Choy
patent: 4748979 (1988-06-01), Hershenson
patent: 4762120 (1988-08-01), Bonzel
patent: 4784636 (1988-11-01), Rydell
patent: 4857045 (1989-08-01), Rydell
patent: 4895166 (1990-01-01), Farr et al.
patent: 4950238 (1990-08-01), Sullivan
patent: 4950277 (1990-08-01), Farr
patent: 5084010 (1992-01-01), Plaia et al.

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