Blood pressure and heart beat pulse rate measuring system
First Claim
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1. IN A BLOOD PRESSURE AND HEARTBEAT MEASURING APPARATUS, A PNEUMATIC COMPRESSOR CONTAINING FLUID UNDER PRESSURE AND HAVING AN EXTREMITY-RECEIVING CAVITY PROVIDED WITH A PAIR OF ELECTRODES ENGAGEABLE WITH SPACED SURFACE PORTIONS OF AN EXTREMITY RECEIVED IN SAID CAVITY, PRESSURE-INDICATING MEANS CONNECTED TO SAID COMPRESSOR, ELECTRICAL IMPEDANCE-RESPONSIVE MEANS CONNECTED TO SAID ELECTRODES, PRESSURE-MODULATING MEANS CONNECTED TO SAID COMPRESSOR AND CHANGING THE COMPRESSOR FLUID PRESSURE IN ONE DIRECTION WHEN ENERGIZED AND IN THE OPPOSITE DIRECTION WHEN DEENERGIZED, AND MEANS TO ENERGIZE SAID PRESSURE-MODULATING MEANS RESPONSIVE TO A PREDETERMINED CHANGE IN IMPEDANCE ACROSS SAID ELECTRODES.
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1 Claim
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1. IN A BLOOD PRESSURE AND HEARTBEAT MEASURING APPARATUS, A PNEUMATIC COMPRESSOR CONTAINING FLUID UNDER PRESSURE AND HAVING AN EXTREMITY-RECEIVING CAVITY PROVIDED WITH A PAIR OF ELECTRODES ENGAGEABLE WITH SPACED SURFACE PORTIONS OF AN EXTREMITY RECEIVED IN SAID CAVITY, PRESSURE-INDICATING MEANS CONNECTED TO SAID COMPRESSOR, ELECTRICAL IMPEDANCE-RESPONSIVE MEANS CONNECTED TO SAID ELECTRODES, PRESSURE-MODULATING MEANS CONNECTED TO SAID COMPRESSOR AND CHANGING THE COMPRESSOR FLUID PRESSURE IN ONE DIRECTION WHEN ENERGIZED AND IN THE OPPOSITE DIRECTION WHEN DEENERGIZED, AND MEANS TO ENERGIZE SAID PRESSURE-MODULATING MEANS RESPONSIVE TO A PREDETERMINED CHANGE IN IMPEDANCE ACROSS SAID ELECTRODES.
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Current AssigneeKarl W. Edmark Jr
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Original AssigneeKarl W. Edmark Jr
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InventorsEdmark, Karl W. Jr.
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Application NumberUS04/292,869Time in Patent Office928 DaysField of SearchUS Class Current600/502CPC Class CodesA61B 5/022 by applying pressure to clo...
