Clinically practical rotational angioplasty system

Details Clinically practical rotational angioplasty system Clinically practical rotational angioplasty system

1992-07-21

1994-05-24

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

053144074

ABSTRACT:
The present invention is a clinically practical, rotational angioplasty system which employs a unique rotary ablative device for mechanically abrading, and thereby removing, lesions from within a patient's vessels. The device has a gas driven prime mover connected, via a hollow helical drive assembly, to an ellipsoidal, rotating, ablative burr which is used for the actual recanalization of the patient's vessel. The burr is provided with a central opening therethrough, which, together with the hollow drive assembly, permits the burr and drive assembly to be threaded over a guide wire similar to the type conventionally used in a catheterization procedure. The drive assembly is located within a hollow sheath which prevents the rotating drive assembly from contacting the inner walls of a patient's vessel.

REFERENCES:
patent: 4002169 (1977-01-01), Cupcer
patent: 4445509 (1984-05-01), Auth
patent: 4622503 (1986-11-01), Sundblom et al.

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