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US 5,024,652 AGranted
Ophthalmological device
OwnerVladimir A. Dumenek, Georgy E. Stolyarenko +1inventors
InventorsVladimir A. Dumenek, Georgy E. Stolyarenko, Leopold V. Kossovsky
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Abstract
The device comprises a surgical instrument incorporating a movable element and a stationary element, and a drive made as a closed hydraulic system adapted to effect mutual displacement of the elements.
Claims13
An ophthalmological device, comprising:
- a surgical instrument comprising inner and outer, coaxial elements each having surgical means on one end for introduction into and performing a surgical procedure on a patient's eye and an opposite end;
- a housing fixedly connected to the opposite end of the outer element for holding the surgical instrument;
- hydraulic drive means operative in response to hydraulic pressure for moving the inner element relative to the outer element and
- pressure-exerting means for providing the hydraulic pressure, the pressure-exerting means forming a closed hydraulic system with the hydraulic drive means,
- wherein said hydraulic drive means comprises a first bellows accommodated inside said housing and connected to said inner element;
- a second bellows located in said pressure-exerting means;
- and piping communicating said first bellows with said second bellows to establish a closed hydraulic system.
4 more elements
Dependencies are inferred from the claim text.