Ultrasonic surgical instrument

Details Ultrasonic surgical instrument Ultrasonic surgical instrument

1996-10-17

1998-09-01

Thaler, Michael H.

Surgery

Instruments

Cutting, puncturing or piercing

606174, A61B 1732

Patent

active

058004483

ABSTRACT:
A surgical cutting instrument is provided which includes a handpiece containing an ultrasonic transducer operative to convert electrical energy into ultrasonic longitudinal vibratory motion. A first elongate shaft has a first end operatively connected to the transducer and a second working end extending distally from the handpiece. A first cutting member is fixedly mounted to the working end of the first elongate shaft such that longitudinal vibratory motion generated by the transducer causes longitudinal vibratory motion of the first cutting member, via the first elongate shaft. A second cutting member is pivotally mounted to a nodal point on the working end of the first shaft and is pivotable between an open position and a closed position with respect to the first cutting member. A second shaft has a first end pivotally connected to the second cutting member for affecting pivotable movement of the second cutting member between the open and closed position.

REFERENCES:
patent: 3899829 (1975-08-01), Storm et al.
patent: 3990452 (1976-11-01), Murry et al.
patent: 5275607 (1994-01-01), Lo et al.
patent: 5522830 (1996-06-01), Aranyl

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