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Methods and apparatus for increasing blood circulation

  • US 8,182,521 B2
  • Filed: 07/30/2007
  • Issued: 05/22/2012
  • Est. Priority Date: 09/24/2003
  • Status: Active Grant
First Claim
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1. An apparatus for providing a therapy useful to prevent deep vein thrombosis (DVT), comprising:

  • a chamber body at least partially defining an enclosed region, wherein the chamber body is adapted to flex;

    a vacu-seal comprising;

    a vacu-sealing portion disposed over an opening formed in the chamber body, wherein a surface of the vacu-sealing portion is adapted to form a seal with at least a portion of the chamber body; and

    a vacu-seal body portion coupled to the vacu-sealing portion and adapted to enclose one or more portions of a human extremity therein, wherein the vacu-seal body portion is disposed within the enclosed region and at least partially defines a space formed between a surface of the vacu-seal body portion and a surface of the chamber body;

    one or more thermal exchange units disposed within the enclosed region;

    one or more thermal exchange supply lines and one or more thermal exchange return lines attached to the one or more thermal exchange units;

    one or more apertures formed in the chamber body, wherein the one or more thermal exchange units are connected to one or more thermal sources via the one or more thermal exchange supply lines and the one or more thermal exchange return lines through at least one of the one or more apertures in the chamber body; and

    one or more compression pads for applying an intermittent compression pressure to one or more portions of the human extremity.

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