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METHOD FOR AUTOMATIC CONTINUOUS MEASURING AND RECORDING OF BLOOD PRESSURE AND ARRANGEMENTS FOR EXECUTING SAID METHOD

  • US 3,585,987 A
  • Filed: 08/05/1968
  • Issued: 06/22/1971
  • Est. Priority Date: 08/11/1967
  • Status: Expired due to Term
First Claim
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1. In a method of automatic, continuous measurement and recording of blood pressure by a blood pressure cuff surrounding one of a patient'"'"''"'"'s limbs wherein the size of a pressure externally applied by the cuff and approximately corresponding to the systolic pressure of a blood vessel automatically is kept close to the systolic pressure, the improvement comprising:

  • the steps of generating a first signal by a sensing means that is dependent on the difference between the systolic pressure and the cuff pressure, generating a second signal dependent on a reference pressure and essentially independent of the cuff pressure, comparing said first signal with said second signal, and adjusting the cuff pressure in response to the comparison of the first and second signals to maintain the cuff pressure somewhat below the systolic pressure.

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