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EXTERNAL PRESSURE CIRCULATORY ASSIST

  • US 3,734,087 A
  • Filed: 11/11/1971
  • Issued: 05/22/1973
  • Est. Priority Date: 11/11/1971
  • Status: Expired due to Term
First Claim
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1. In apparatus for applying external pressure circulatory assist action to the legs of a patient in cyclic synchronization with the heartbeat of said patient by pressurizing said legs, the improvement wherein said apparatus comprises:

  • A. a unitary bladder adapted for wrapping about a patient'"'"''"'"'s legs and holding a quantity of liquid, B. mechanical displacement means in contact with outside wall of said bladder and forming means to press against said bladder, said means forming the primary means for obtaining the aforesaid pressure assist action, and C. a unitary upper leg casing member and a unitary lower leg casing member having means, said casing members adapted for attachment to form a compartment to enclose said bladder, said casing members having sufficient brace means between leg sections thereof to avoid any substantial outward deflection of said leg casing members during said pressurizing of said fluid.

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