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Blood volume redistribution therapy for heart failure

  • US 9,526,893 B2
  • Filed: 06/25/2013
  • Issued: 12/27/2016
  • Est. Priority Date: 07/27/2009
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a first fluid monitor configured to monitor fluid in a pulmonary region of a patient and provide a pulmonary fluid status;

    a second fluid monitor configured to monitor fluid in a non-pulmonary region of the patient and provide a non-pulmonary fluid status;

    a therapy delivery system configured to vasodilate vasculature in the non-pulmonary region;

    a controller operably connected to the first and second fluid monitors and to the therapy delivery system, the controller configured to determine, using the pulmonary fluid status and the non-pulmonary fluid status, that an elevated fluid status is attributable to fluid distribution toward the pulmonary region rather than to an increase in total blood volume, and to control the therapy delivery system to deliver a therapy to vasodilate vasculature in the non-pulmonary region to redistribute fluid from the pulmonary region to the non-pulmonary region.

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