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Device for checking blood pressure

  • US 3,929,129 A
  • Filed: 12/16/1974
  • Issued: 12/30/1975
  • Est. Priority Date: 12/16/1974
  • Status: Expired due to Term
First Claim
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1. In a device for checking blood pressure, the combination comprising an inflatable hollow band adapted to encircle a limb, pump means connected to said band for inflating said band, a first pressure relief valve on said band and set to relieve pressure at a first predetermined pressure, on-off valve means associated with said first pressure relief valve for disabling said first pressure relief valve, a second pressure relief valve associated with said hollow band and set for relieving the pressure of said band at a higher setting than said first pressure relief valve such that, the blood pressure may be checked by actuating said pump means until the pulse of the person being checked is interrupted in said limb or until the first pressure relief valve operates to relieve the pressure, thereafter actuating said on-off valve means if said first pressure relief valve has been actuated to disable said first pressure relief valve and continuing the application of pressure until the pulse of the individual is interrupted or the second pressure relief valve is actuated indicating a more serious condition of blood pressure.

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