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Cardiac assistance device and method for the control thereof

  • US 8,944,987 B2
  • Filed: 09/30/2010
  • Issued: 02/03/2015
  • Est. Priority Date: 09/30/2009
  • Status: Active Grant
First Claim
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1. A cardiac assistance device comprising:

  • a supporting component configured to surround a heart and having an inside wall arranged to face the heart;

    a plurality of inflatable chambers disposed within the supporting component and arranged to displace respective regions of the inside wall of the supporting component toward the heart when inflated;

    a fluid circuit comprising a pump having an inlet and an outlet, and a plurality of combined supply and discharge valves, each valve fluidly connecting the pump inlet and outlet to a respective subset of inflatable chambers, the valves being independently operable to control the supply and discharge of fluid to their respective subset of the inflatable chambers, andan intracorporeal fluid refill tank connected to the fluid circuit via a refill tank valve that allows fluid to flow from the refill tank into the fluid circuit when opened.

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