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Anti-sludge medication ports and related methods

  • US 6,478,783 B1
  • Filed: 05/26/2000
  • Issued: 11/12/2002
  • Est. Priority Date: 05/26/2000
  • Status: Expired due to Fees
First Claim
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1. An anti-sludge port, adapted to be placed indwelling within a medical patient, comprising:

  • a housing;

    a variable volume liquid-receiving reservoir within the housing;

    a septum of elastomeric material adapted to be penetrated by a hollow cannula to introduce influent liquid into the variable volume reservoir;

    a retainer securing the septum to the housing;

    a movable partition at least in part defining the variable volume reservoir, the partition being disposed within the housing, biased toward the septum and a closed position which evacuates substantially all liquid from the reservoir and displaceable within the housing counter to the bias to an open position for filling the reservoir with liquid;

    an effluent flow path disposed at least in part within the housing along which the liquid from the reservoir is introduced into the patient.

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