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Blood vessel pressing cuff, blood pressure measuring apparatus including the blood vessel pressing cuff, and blood pressure measuring method using the blood pressure measuring apparatus

  • US 8,652,058 B2
  • Filed: 04/01/2010
  • Issued: 02/18/2014
  • Est. Priority Date: 07/21/2009
  • Status: Expired due to Fees
First Claim
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1. A blood vessel pressing cuff comprising:

  • a strap adapted to surround a body part;

    a first actuator disposed on the strap, and comprising a first shape memory alloy which changes to a first shape memorized in advance, at a temperature equal to or higher than a first temperature; and

    a second actuator disposed on the strap and separated from the first actuator along a length of the strap, and comprising a second shape memory alloy which changes to a second shape memorized in advance, at a temperature equal to or higher than a second temperature which is different from the first temperature, wherein the first actuator is adapted to apply an increased pressure at a target part of the body part when the first shape memory alloy changes to the first shape, and wherein the first actuator is adapted to apply a decreased pressure to the target part of the body part due to the change of the second shape memory alloy to the second shape.

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