Surgery – Truss – Pad
Patent
1990-03-01
1992-10-06
Kamm, William E.
Surgery
Truss
Pad
128633, 128679, 128696, A61B 502
Patent
active
051522969
ABSTRACT:
A Dual-Finger Vital Signs Monitor is disclosed. The present invention overcomes problems suffered by previous patient monitors by providing a simultaneous and continuous measurement of three primary vital signs: ECG and heart rate, blood pressure, and blood oxygen saturation. The invention employs a pair of finger cuffs that each include an electro-cardiographic electrode, a first LED and detector pair for blood pressure measurement, and a second LED and detector pair for blood oxygenation measurement. The electrodes are connected to a voltmeter which displays an electrocardiogram. The first LED and detector in each cuff function as a finger-photoplethysmographic pressure sensor. A pair of gas lines connect each finger cuff to a pair of pressure controllers, which each include a fluid reservoir. One of the servos is linked to a blood pressure meter. The second LED and detector pair in each cuff are each connected to a pair of oximeters. All the sensors operate independently. The use of two finger cuffs affords substantial advantages for signal processing and data interpretation. The redundancy of sensors greatly reduces the incidence of false warnings. The Dual-Finger Vital Signs Monitor provides a non-invasive and reliable device for monitoring patients who may suffer from cardiac or respiratory difficulties. This invention constitutes a major step forward in the filed of medical instrumentation.
REFERENCES:
patent: 3858574 (1975-01-01), Page
patent: 4183360 (1980-01-01), Carlson et al.
patent: 4406289 (1983-09-01), Wesseling et al.
patent: 4432374 (1984-02-01), Osanai
patent: 4475554 (1984-10-01), Hyndman
patent: 4539997 (1985-09-01), Wesseling et al.
patent: 4718428 (1988-07-01), Russell
patent: 4726382 (1988-02-01), Boehmer et al.
patent: 4821734 (1989-04-01), Koshino
patent: 4860759 (1989-08-01), Kahn et al.
patent: 4883055 (1989-11-01), Merrick
patent: 4974607 (1990-12-01), Miwa
patent: 5050612 (1991-09-01), Matsumura
Yoshiya et al., "Spectrophotometric Monitoring of Arterial Oxygen Saturation in the Fingertip", Med. & Biol. Eng. & Comput., 1980; 18:27-32.
Yamakoshi et al., "New oscillometric method for indirect measurement of systolic and mean arterial pressure in the human finger", Med. & Biol. Eng. & Comput., 1982; 20:314-318.
Mendelson et al., "Spectrophotometric Investigation of Pulsatile Blood Flow for Transcutaneous Reflectance Oximetry", Adv. Exp. Med. Biol., 1981; 159:93-102.
Boehmer, "Continuous, Real-Time, Noninvasive Monitor of Blood Pressure: Penaz Methodology Applied to the Finger", Journal of Clinical monitoring, 1987; vol. 3, No. 4, 282-287.
Yoshida et al., "Non-Invasive Spectrophotometric Estimation of Arterial Oxygen Saturation", Non-Invasive Measurements: 2 1983; 251-286.
Yamakoshi et al., "Current Developments in non-invasive measurement of arterial blood pressure", J. Biomed. Eng., 1988; vol. 10, 130-137.
Smith et al., "Evaluation of two prototype devices producing noninvasive, pulsatile, calibrated blood pressure measurement from a finger", J. of Clinical monitoring, 1985; vol. 1, No. 1, 17-29.
Shimada et al., "Effects of multiple scattering and peripheral circulation on arterial oxygen saturation measured with a pulse-type oximeter", Med. & Biol. Eng. & Comput., 1984; 22:475-478.
Penaz, "Photoelectric measurement of blood pressure, vol. and flow in the finger", Digest of the 10th Annual Conf. on Med. & Biol. Engineering, 1973, Dresden, 7-2.
Shimazu et al., "Idea to measure diastolic arterial pressure by volume oscillometric method in human fingers", Med. & Biol. Eng. & Comput., 1986; 24:549-554.
Penaz et al., "Beitrag zu fortlaufenden indirecktn Blutdruckmessung", Zschr. inn. Med. Jahrg. 31, 1976; Heft 24,1030-1033.
Yamakoshi et al., "Indirect Measurement of Instantaneous Arterial Blood Pressure in the Human Finger by the Vascular Unloading Technique", IEEE Transactions on Biomed. Eng., vol. BME-278, No. 3, 1980; 150-155.
Molhoek et al., "Evaluation of the Penaz servo-plethysmomanomether for the continuous, non-invasive measurement of finger blood pressure", Basic Res. Cardiol., 1984; 79:598-609.
Sengoku et al., Japan J. Med. Electron Biol. Eng., 1985; 23(6): 410-11.
Advertisement for a continuous NIBP monitor from Ohmeda.
Advertisement for a blood pressure monitor from Critikon.
Advertisement for an oxygen saturation monitor for Spectramed.
Advertisement for an oximeter/capnograph from Criticare Systems.
Advertisement for an oximeter/capnograph from Ohmeda.
Sarnquist et al., "Accuracy of a New Non-Invasive Oxygen Saturation Monitor", Anesthesiology, 1980; vol. 53, No. 3; S163.
Hewlett--Packard Company
Kamm William E.
Pontius Kevin
Wu Jack H.
LandOfFree
Dual-finger vital signs monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual-finger vital signs monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-finger vital signs monitor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1183201