Surgery – Truss – Pad
Patent
1994-02-14
1995-09-12
Manuel, George
Surgery
Truss
Pad
A61B 800
Patent
active
054489954
ABSTRACT:
A method for non-invasive evaluation of diaphragmatic function in humans measures the thickness of the diaphragm in real time with an ultrasonic device, and displays the variations of diaphragm thickness versus time. Formulae are given for calculating a quantitative value for the reserve fatigue capacity of a patient's diaphragm from data obtained by measuring the time limits for maintaining a constant breathing pattern on the display at two different pressure differentials in series with the patient's airways. An apparatus for displaying the diaphragm thickness in real time is also described. The method can be used both on healthy patients and on patients with so severe breathing dysfunctions that they require breathing support from respirators.
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patent: 5031627 (1991-07-01), Yost et al.
patent: 5299576 (1994-04-01), Shiba
Effect of pressure and timing of contraction on human diaphragm fatigue. F. Bellemare and A. Grassino, J. Appl. Physiol.: Respirat. Environ. Exercise Physiol. 53(5): 1190-1195, 1982.
Diaphragmatic thickness-lung volume relationship in vivo. Juliette L. Wait, Patricia A. Nahormek, William T. Yost, and Dudley F. Rochester, J. Appl. Physiol. 67(4): 1560-1568, 1989.
Cantrell John H.
Hanna-Hawver Pamela D.
Nahormek Patricia A.
Wait Juliette L.
Yost William T.
Chasteen Kimberly A.
Manuel George
The United States of America as represented by the Administrator
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