Ultrasonic instrument with a micro motor having stator coils on

Details Ultrasonic instrument with a micro motor having stator coils on Ultrasonic instrument with a micro motor having stator coils on

1992-01-14

1993-08-31

Jaworski, Francis

Surgery

Truss

Pad

310 40MM, 310162, A61B 812, H02K 2100

Patent

active

052400034

ABSTRACT:
The disposable intra-luminal ultrasonic instrument for the examination and/or treatment of blood vessels and similar lumina has a small transverse cross-section. The instrument includes a catheter comprising a body and a tip having a distal end and a distal portion adapted to be introduced into a lumen and a proximal portion. The catheter has a diameter no greater than 3 millimeters, a rotatable member in the tip, a micro motor in the tip and coupled to the rotatable member for rotating the rotatable member at a selected rpm, the motor having flat stator coils mounted on a flexible circuit board, and means for generating and supplying sound waves to the rotatable member.

REFERENCES:
patent: 4645961 (1987-02-01), Malsky
patent: 4665331 (1987-05-01), Sudo et al.
patent: 4728834 (1988-03-01), Kumar et al.
patent: 4962329 (1990-10-01), Fujita et al.
patent: 4975607 (1990-12-01), Hara et al.
Bom, N. et al., "Earlyand Recent Intraluminal Ultrasound Devices", Intnl Jrnl of Cardiac Imaging vol. 4 pp. 79-88 1989.

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