United States Patent Application Publication No. 20050118048

Fluid-flow cassette for an ophthalmic surgical instrument


A cartridge or cassette adapted to be attached to an apparatus for controlling the flow of fluid to and from a surgical handpiece. The cassette includes irrigation and aspiration fluid-flow paths and consisting of interconnected tubing having inlet and outlet port's associated with the case of the cassette that are accessible for attachment to fluid and vacuum sources. The rear cover of the case includes cutouts enabling the cassette to be releasably and registerably attached to a surgical instrument. A sensor on the instrument engages a portion of the cassette to verify that the cassette is correctly positioned and is appropriate for use with the instrument. Locking means on the instrument releasably engage the cassette in position. Irrigation fluid may be redirected into the aspiration channel of the handpiece in response to a reflux signal.

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Reference Info:Federal, Federal Circuit, Patent | United States

DISCLAIMER: Because of the generality of this update, the information provided herein may not be applicable in all situations and should not be acted upon without specific legal advice based on particular situations.

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