A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
73/101, 341/39
A61B 5/02 (2006.01) A61B 5/0225 (2006.01)
Patent
CA 1187311
ABSTRACT A method and a device for correcting the cuff pressure in the indirect, non-invasive and continuous measurement of the blood pressure in a part of the body by using a plethys- mograph in a fluid-filed pressure cuff, an electronic control circuit, and an electric pressure valve. The cuff pressure is controlled by the plethysmographic signal in closed-loop operation with the aid of a servo-reference level obtained via a memory circuit. The servo-reference level, in opera- tion of the device, is adjusted by opening the closed loop of the control circuit for a short interval, after which, in open-loop operation the cuff pressure is adjusted at an intermediate pressure derived from the pressure last measured and the servo-reference level is adjusted via the memory circuit.
416515
Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschap
Ridout & Maybee Llp
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