Methods of and apparatus for the measurement of blood pressure

Details Methods of and apparatus for the measurement of blood pressure Methods of and apparatus for the measurement of blood pressure

1977-03-21

1981-04-28

Michell, Robert W.

Surgery

Truss

Pad

A61B 502

Patent

active

042639182

ABSTRACT:
Blood pressure is measured with the aid of a programmed data processor such as a microcomputer. Electrical signals are provided in response to the pressure in a blood pressure cuff as the pressure therein is changed to vary the constriction of an artery. The signals are processed to provide a train of pulses corresponding to successive blood pressure pulses and digital signals representing the amplitude of each pulse and the cuff pressure which accompanies each pulse are stored in the memories of the data processor. The processor has means by which the pulses are first selected in accordance with their relative amplitudes and location in the train so as to satisfy criteria for the rejection of artifacts. The processor provides outputs from its memories in which digital signals representing cuff pressures which were acquired at the same time as the pulses which are identified as occurring at the times of the systolic and diastolic events. These outputs may be displayed as on a digital readout device or processed for remote transmission so as to indicate the blood pressure. Information as to the pulse rate may be obtained from the time intervals between a group of pulses in the train by converting that time interval into a digital signal which represents the pulse rate. This signal may also be outputted to a display or for remote transmission.

REFERENCES:
patent: 3229685 (1966-01-01), Ringkamp et al.
patent: 3482565 (1969-12-01), Gowen
patent: 3552383 (1971-01-01), Krueger
patent: 3581734 (1971-06-01), Croslin
patent: 3655095 (1972-04-01), Kienitz
patent: 3779235 (1973-12-01), Murphy, Jr. et al.
patent: 3903872 (1975-09-01), Link
patent: 3978848 (1976-09-01), Yen et al.
patent: 3985123 (1976-10-01), Herzfinger et al.
patent: 4009709 (1977-03-01), Link et al.
patent: 4033336 (1977-07-01), Murawski et al.
patent: 4050452 (1977-09-01), Lee
patent: 4058118 (1977-11-01), Stupay et al.
patent: 4074711 (1978-02-01), Link et al.
patent: 4154238 (1979-05-01), Link
patent: 4174707 (1979-11-01), Link et al.
"Up Checks EKG and Pressure", Electronics Design, v. 2A, #19, p. 28, Sep. 1976.
Schulze, A. E. et al., "A System for Automatic Measurement and Digital Display of Systolic and Diastolic Blood Pressures", Southwest IEEE Proc. Conf. Rec., Apr. 1968, pp. 17F1-17F5.
Link, W. T., "Norse Systems Automatic BP Monitor Using Waveform Analysis Oscillometry", NSI Inc., 3475 Investment Blvd., Hayward, Cal. 94545, Aug. 1974.
Hartley, R. W., "Analogue Display Rate Meter Built Around Digital Switching Elements", MB Engr., Jan. 1976, pp. 107-108.
Randall, J. R. et al., "Computer Automation of BP Measurements", Proceedings of the IEEE, vol. 63, No. 10, 10/75, pp. 1399-1403.

Affiliated with

Also associated with

Rating

Methods of and apparatus for the measurement of blood pressure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods of and apparatus for the measurement of blood pressure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of and apparatus for the measurement of blood pressure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-858527