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Blood pumping unit, with a coplanar disk inlet valve and an annular outlet valve

  • US 7,029,245 B2
  • Filed: 05/06/2003
  • Issued: 04/18/2006
  • Est. Priority Date: 05/14/2002
  • Status: Expired due to Fees
First Claim
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1. A device for pulsed pumping of blood, comprising:

  • a body portion;

    a pumping chamber disposed within the body portion having a diaphragm, an inlet duct and an outlet duct;

    an inlet valve support fixed to an opening in the inlet duct;

    an inlet disk valve attached to the inlet valve support for controlling flow of blood from the inlet duct into the pumping chamber; and

    an annular outlet valve for controlling flow of blood from the pumping chamber to the outlet duct,wherein the inlet valve and the outlet valve both comprise a planar elastic material and wherein the inlet valve and the outlet valve are coplanar.

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