Intra-luminal ultrasonic instrument

Details Intra-luminal ultrasonic instrument Intra-luminal ultrasonic instrument

1993-10-15

1995-04-18

Jaworski, Francis

Surgery

Truss

Pad

1286601, A61B 812

Patent

active

054069513

ABSTRACT:
The intra-luminal ultrasonic instrument includes a catheter comprising a body, a flexible rotatable drive shaft within the body, an opalescent tip coupled to the flexible rotatable drive shaft having a distal end and a distal end portion adapted to be introduced into a lumen and a proximal portion, and a transducer mounted in the tip for rotation at a selected rpm, the catheter having a diameter no greater than 3 millimeters, the flexible rotatable drive shaft having a central longitudinal channel containing coaxial cable cooperative with conductors to connect the transducer to a source of energy for energizing the transducer to produce and supply sound waves, and the transducer having a top surface comprising a matching layer of a conductive polymer set upon a piezo plate.

REFERENCES:
patent: 4734611 (1988-03-01), Granz
patent: 4914565 (1990-04-01), Schnoeller et al.
patent: 4951677 (1990-08-01), Crowley et al.
patent: 5002058 (1991-03-01), Martinelli
patent: 5070882 (1991-12-01), Bui et al.
patent: 5143089 (1992-09-01), Alt
patent: 5240003 (1993-08-01), Lancee et al.
patent: 5240004 (1993-08-01), Walinsky et al.
patent: 5268082 (1993-12-01), Oguro et al.
patent: 5271402 (1993-12-01), Yeung et al.
patent: 5340510 (1994-08-01), Bowen

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