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Weight controlled dialysis system with accelerometer

  • US 7,789,850 B2
  • Filed: 01/22/2007
  • Issued: 09/07/2010
  • Est. Priority Date: 01/22/2007
  • Status: Expired due to Fees
First Claim
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1. A dialysis system comprising:

  • an enclosure;

    a dialysate pump carried by the enclosure and arranged to pump dialysate to a patient or dialyzer;

    at least one container connected fluidly to the dialysate pump;

    a load cell positioned to weigh dialysate located within the at least one container;

    an accelerometer positioned and arranged to detect a force imparted on at least one of the enclosure and the container; and

    electronics configured to receive a first signal from the load cell and a second signal from the accelerometer and process the first and second signals so as to determine if an abnormality sensed by the load cell is a system error or a mechanical interference,wherein the electronics are further configured such that if the second signal yields an abnormal accelerometer condition, the load cell abnormality is categorized as a mechanical interference.

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