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Multi-purpose irrigation/aspiration pump system

  • US 5,460,490 A
  • Filed: 05/19/1994
  • Issued: 10/24/1995
  • Est. Priority Date: 05/19/1994
  • Status: Expired due to Term
First Claim
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1. A multi-purpose irrigation/aspiration pump system for use with a source of irrigating fluid and with a source of aspirating vacuum during an endoscopic surgical procedure at a surgical work site comprising:

  • an elongated fluid inflow conduit connected between said fluid source and the work site;

    an elongated fluid outflow conduit connected between the work site and said vacuum source;

    pressure producing means for producing a predetermined fluid pressure in said fluid inflow conduit;

    aspiration regulating means for regulating the fluid flow in said fluid outflow line;

    pressure sensing means for sensing the fluid pressure at a predetermined point in the flow path of said fluid;

    control means responsive to said pressure sensing means for controlling said pressure producing means and said aspiration regulating means;

    a tubing cassette housing means comprising;

    an integrally formed planar body having a front surface and a back surface, a first channel formed in and parallel to said back surface for holding a predetermined intermediate portion of said fluid inflow conduit and a second channel formed in and parallel to said back surface for holding a predetermined intermediate portion of said fluid outflow conduit, said first and second channels being open on said back surface to enable direct access of said pressure producing means and said aspiration regulating means to said predetermined intermediate portions of said fluid inflow and outflow conduits;

    coding means on said cassette housing means for containing a code which identifies at least one predetermined irrigation/aspiration operational characteristic;

    decoding means for determining said code contained in said coding means and communicating same to said control means;

    retention means for receiving said cassette housing means and operatively engaging said fluid inflow conduit with said pressure producing means and said fluid outflow conduit with said aspiration regulating means.

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