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Disposable cassette having a sealing membrane and a valve actuator therefor

  • US 6,752,172 B2
  • Filed: 10/29/2001
  • Issued: 06/22/2004
  • Est. Priority Date: 10/27/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus for supplying and/or branching off of a secondary flow into and/or out of a main flow of a medical fluid, said apparatus comprisinga fluid guide body having at least one main passage extending therethrough and defined between two rims and being open at a side;

  • at least one secondary passage;

    a covering film located on the fluid guide body spanning the open side of the main passage; and

    an opening of the at least one secondary passage being closable by the covering film and the opening of the at least one secondary passage being vertically coincident with the rims of the at least one main passage; and

    an outer contour of the secondary passage being disposed in the main passage and having a streamlined shape corresponding to a flow direction of the main flow in the main passage.

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