Surgery – Truss – Perineal
Patent
1977-02-07
1979-02-27
Michell, Robert W.
Surgery
Truss
Perineal
73 80, 128 205V, A61B 502
Patent
active
041413466
ABSTRACT:
An improved ocular plethysmograph for use in conjunction with known pulse volume recorders, and offering increased performance and simplicity as well as lower cost of manufacture. The device employs a means whereby a large DC pressure signal is cancelled across a very sensitive DC pressure transducer employed to detect directly the tiny pressure fluctuations resulting from minute volume plethysmic changes of the human ocular globe. The means employed provides secondary advantages in use.
REFERENCES:
patent: 3308810 (1967-03-01), Galin
patent: 3706304 (1972-12-01), Sisler
patent: 3911903 (1975-10-01), Gee et al.
Darling, R. C. et al., "Quantitative Segmental Pulse Volume Recorder: A Clinical Tool", Surgery V72 #6, Dec. 72 pp. 873-887.
Dean, Jr. Robert C.
Hoisington Paul A.
Mastro Frank E.
Walsh Brian F.
Jaworski Francis J.
Life Sciences, Inc.
Michell Robert W.
Temko Charles E.
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