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Wearable ultrafiltration device

  • US 7,828,761 B2
  • Filed: 07/30/2007
  • Issued: 11/09/2010
  • Est. Priority Date: 11/16/2001
  • Status: Expired due to Fees
First Claim
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1. A method of ultrafiltrating excess body fluid from a congestive heart failure patient, the method comprising:

  • obtaining, from a first blood vessel of a congestive heart failure (CHF) patient, blood containing excess body fluid;

    shuttle-pumping said blood with a shuttle pump;

    receiving at an ultrafiltration filter said blood;

    filtering the excess body fluid with said ultrafiltration filter to remove said excess body fluid from said blood at a rate slow enough to reduce a risk of creating a low blood pressure condition in said CHF patient and slow enough to allow continuous removal of said excess body fluid for at least 24 hours;

    directing said removed excess body fluid directly to a fluid storage receptacle while the ultrafiltration filter is in various three-dimensional orientations; and

    returning said filtered blood to a second blood vessel of said CHF patient.

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