Surgery – Truss – Pad
Patent
1989-03-02
1990-05-15
Sykes, Angela D.
Surgery
Truss
Pad
128681, A61B 502
Patent
active
049248740
ABSTRACT:
An apparatus for automatically measuring blood pressure of a subject based on heartbeat-synchronous pulses, the apparatus having a device including a cuff and detecting a magnitude of each of the pulses produced from the subject as pressure in the cuff is varied, a device for collecting not less than a first number of the detected pulses, and plotting a corresponding number of points in a table defined by a first axis indicative of the cuff pressure and a second axis indicative of the pulse magnitude, such that each of the plotted points represents a cuff pressure at a time of detection of a corresponding one of the collected pulses and a pulse magnitude of the corresponding one pulse, a device for selecting a second number of consecutive points from the plotted points and determining a regression line of the selected points, a device for determining, based on the regression line, at least one expected pulse magnitude regarding at least one point adjacent to the selected points, a device for determining a temporary maximum blood pressure based on the at least one point if a pulse magnitude represented by each of the at least one point is higher than a corresponding one of the at least one expected pulse magnitude, a device for determining a proper maximum blood pressure, and a device for displaying the temporary maximum blood pressure prior to the proper maximum blood pressure.
REFERENCES:
patent: 4484584 (1984-11-01), Uemura
patent: 4729383 (1988-03-01), Susi
patent: 4774960 (1988-10-01), Arnold et al.
Colin Electronics Co., Ltd.
Sykes Angela D.
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