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VACUUM SURGE SUPPRESSOR FOR SURGICAL ASPIRATION SYSTEMS

  • US 20080312594A1
  • Filed: 04/25/2008
  • Published: 12/18/2008
  • Est. Priority Date: 06/13/2007
  • Status: Active Grant
First Claim
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1. A vacuum surge suppressor, for a surgical aspiration system that includes a surgical instrument and a vacuum pump, the vacuum surge suppressor comprising:

  • a first fluid path for coupling to the surgical instrument;

    a filter attached to the first fluid path;

    a flow restrictor coupled to the filter, the filter being disposed upstream of the flow restrictor;

    a second fluid path for coupling to the vacuum pump, the second fluid path connected to the flow restrictor and disposed downstream of the flow restrictor, the second fluid path defining a path internal pressure;

    a third fluid path coupled to the filter and connected to the second fluid path, bypassing the flow restrictor; and

    a valve in the third fluid path that obstructs flow in the third fluid path in response to the path internal pressure.

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