1
Shock John P: Ultrasonic cataract removal method and apparatus. Ultrasonic Systems, Suroff Leonard W, December 31, 1974: US3857387 (75 worldwide citation)

Ultrasonic instrumentation for the removal of unwanted tissue material from an animal, such as a human, and more particularly, adapted for the removal of cataracts, in surgical operations. The ultrasonic instrumentation includes a hand-held instrument adapted to have a vibrating tool to reduce the v ...


2
John P Shock: Ultrasonic cataract removal method and apparatus. April 27, 1976: US03952732 (30 worldwide citation)

Ultrasonic instrumentation for the removal of unwanted tissue material from an animal, such as a human, and more particularly, adapted for the removal of cataracts, in surgical operations. The ultrasonic instrumentation includes a hand-held instrument adapted to have a vibrating tool to reduce the v ...