Device for measurement of arterial blood pressure
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United States of America Patent
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-
Apr 25, 1989
Grant Date -
N/A
app pub date -
Apr 3, 1987
filing date -
Apr 3, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for measurement of arterial blood pressure, comprising a compression cuff with a manometer, and a pulse wave sensor interposed between the compression cuff and the patient's body surface and situated below the cuff axis square with the direction of the pulse wave propagation, said sensor being connected to a recorder and having a piezoelectric crystal plate one of whose working surfaces carries a first elastic current-conducting layer, while the other working surface of said plate carries a second elastic current-conducting layer, a first elastic electric-insulating layer being applied to the surface of the first elastic current-conducting layer, and a third elastic current-conducting layer is situated on the surface of said first electric-insulating layer.
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