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Fluid volume measurement device for medical use

  • US 7,887,509 B2
  • Filed: 12/29/2006
  • Issued: 02/15/2011
  • Est. Priority Date: 01/25/2006
  • Status: Active Grant
First Claim
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1. Medical device for the delivery and/or the extraction of fluid to and/or from a patient, said medical device comprising:

  • a pumping unit for pumping a fluid,a warming chamber with an inlet and an outlet and containing a heating element for warming said fluid,fluid volume measuring means, anda fluid line crossing said pumping and warming units,wherein said heating element is adapted to be fully immersed in the fluid which is crossing said warming chamber and by the fact that said fluid volume measuring means comprise temperature sensing means adapted to measure the fluid temperature on at least two separate points, said fluid volume measuring means further comprising electrical parameter measuring means for determining at least one electrical parameter such as current, power, or frequency applied to said heating element.

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