Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
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.
Auth David C.
Clement Thomas J.
Hinchcliffe John S.
Intlekofer Michael J.
Slota Michael W.
Heart Technology, Inc.
Thaler Michael H.
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