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Microsurgical cassette

  • US 5,499,969 A
  • Filed: 07/14/1994
  • Issued: 03/19/1996
  • Est. Priority Date: 02/05/1992
  • Status: Expired due to Term
First Claim
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1. A cassette for use in combination with a surgical handpiece and a control console for controlling irrigation and aspiration fluid flows in the handpiece, comprising:

  • a) a housing having an external surface and an interface adapted to be held in operative association with the control console;

    b) a means for generating a partial vacuum through interaction with a motive force having an inlet and a discharge line;

    c) an aspiration fluid inlet coupling integrally formed in the housing;

    d) an irrigation fluid inlet coupling integrally formed in the housing;

    e) an irrigation fluid outlet coupling integrally formed in the housing;

    f) an aspiration fluid flow passage integrally formed in the housing in fluid communication with the aspiration fluid inlet coupling and the partial vacuum generating means inlet;

    g) an irrigation fluid inlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet coupling;

    h) an irrigation fluid outlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet flow passage and the irrigation fluid outlet coupling to form a continuous irrigation fluid flow passage between the irrigation fluid inlet coupling and the irrigation fluid outlet coupling; and

    i) a valve spaced within the continuous irrigation fluid flow passage between the irrigation fluid inlet flow passage and the irrigation fluid outlet flow passage in operative association with a valve actuator in the console.

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