Blood pressure measurement
First Claim
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1. APPARTUS FOR CONTINUOUSLY MEASURING ARTERIAL BLOOD PRESSURE WHICH COMPRISES TRANSMITTING TRANSDUCER MEANS AND DRIVING SOURCE FOR EXTERNALLY IMPRESSING AN ALTERNATING SUBSTANTIALLY SYMMETRICAL CONTINUOUS-WAVE PRESSURE VARIATION ON THE ARTERIAL BLOOD STREAM AT A FREQUENCY SUBSTANTIALLY HIGHER THAN THE FREQUENCY OF HEART CONTRACTION AND WITH AN AMPLITUDE WHICH IS SUBSTANTIALLY SMALLER THAN THE NORMAL ARTERIAL BLOOD PRESSURES, WHERE BY THE IMPRESSED CONTINUOUS-WAVE PRESSURE VARIATION IS PHASE-MODULATED IN ACCORDANCE WITH THE ARTERIAL BLOOD PRESSURE OVER THE HEART BEAT CYCLE AS THE CONTINUOUS-WAVE PRESSURE VARIATION TRAVELS ALONG THE ARTERY, RECEIVER TRANSDUCER MEANS EXTERNALLY POSITIONED OVER THE ARTERIAL BLOOD STREAM AND
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1 Claim
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1. APPARTUS FOR CONTINUOUSLY MEASURING ARTERIAL BLOOD PRESSURE WHICH COMPRISES TRANSMITTING TRANSDUCER MEANS AND DRIVING SOURCE FOR EXTERNALLY IMPRESSING AN ALTERNATING SUBSTANTIALLY SYMMETRICAL CONTINUOUS-WAVE PRESSURE VARIATION ON THE ARTERIAL BLOOD STREAM AT A FREQUENCY SUBSTANTIALLY HIGHER THAN THE FREQUENCY OF HEART CONTRACTION AND WITH AN AMPLITUDE WHICH IS SUBSTANTIALLY SMALLER THAN THE NORMAL ARTERIAL BLOOD PRESSURES, WHERE BY THE IMPRESSED CONTINUOUS-WAVE PRESSURE VARIATION IS PHASE-MODULATED IN ACCORDANCE WITH THE ARTERIAL BLOOD PRESSURE OVER THE HEART BEAT CYCLE AS THE CONTINUOUS-WAVE PRESSURE VARIATION TRAVELS ALONG THE ARTERY, RECEIVER TRANSDUCER MEANS EXTERNALLY POSITIONED OVER THE ARTERIAL BLOOD STREAM AND
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Current AssigneeWalter E. Tolles
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Original AssigneeWalter E. Tolles
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InventorsTolles, Walter E.
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Application NumberUS03/855,699Time in Patent Office1,313 DaysField of SearchUS Class Current600/485CPC Class CodesA61B 5/02133 by using induced vibration ...A61B 5/0285 Measuring or recording phas...A61B 7/045 Detection of Korotkoff soun...
