Surgery – Respiratory method or device – Ozone or ion generation
Patent
1976-08-12
1978-03-28
Truluck, Dalton L.
Surgery
Respiratory method or device
Ozone or ion generation
128 205D, 128214F, 128DIG13, A61M 514
Patent
active
040809668
ABSTRACT:
A reliable and inexpensive method has been developed to continually regulate the blood pressure of mammals at virtually any desired level. The pressure thus regulated may be maintained within 10 mm Hg tolerances. The method may be carried out by a closed loop apparatus with which (1) the actual blood pressure is continually measured, (2) a function of the actual blood pressure is compared with a desired blood pressure, (3) any difference between the blood pressure expressed by the function of the actual blood pressure and the desired blood pressure is converted into an error signal, (4) the error signal is converted into proportional and derivative functions which in turn (5) control the rate of pumping of a supply of a liquid hypertensive agent or a hypotensive agent into the circulatory system of the mammal.
REFERENCES:
patent: 2690178 (1954-09-01), Bickford
patent: 3143111 (1964-08-01), Green
patent: 3163176 (1964-12-01), Darling
patent: 3319623 (1967-05-01), London
patent: 3651806 (1972-03-01), Hirshberg
patent: 3938506 (1976-02-01), Birnbaum et al.
Engelman Karl
McNally Robert T.
Noordergraaf Abraham
Truluck Dalton L.
Trustees of the University of Pennsylvania
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