Pulse width modulation valve control for vital sign monitors
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United States of America Patent
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Jul 25, 2000
Grant Date -
N/A
app pub date -
Oct 30, 1998
filing date -
Oct 30, 1998
priority date (Note) -
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Abstract
A method for measuring a patient's blood pressure involves using a patient-applied cuff operably connected to an electronically controlled blood pressure monitor that includes a pump. The method includes controlling pressure in the cuff by inflating the cuff to a suprasystolic pressure, and step-wise deflating of the cuff to acquire blood-pressure data from the patient. The improvement includes using pulse-width modulation data to enhance control of cuff pressure.
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