Surgery – Truss – Pad
Patent
1990-03-06
1992-10-06
Pellegrino, Stephen C.
Surgery
Truss
Pad
128691, 128694, A61B 502
Patent
active
051522977
ABSTRACT:
This method for establishing the pressure-diameter relationship of an artery employs the measurement results from a non-invasive sensor (3) of the artery diameter, for instance of the humeral artery, and from a non-invasive sensor (4) of the blood pressure applied for instance to the end of a finger. The measurement locations being separated by a distance .DELTA.x, the method provides for the correction of the pressure measurements as if such measurements had been effected at the location of the diameter measurements. The method further provides a correction which takes into account the mechanical properties of the artery, defined by the parameters .alpha., .beta., .gamma., . . . and which are calculated, if necessary by successive iterations, until the pressure-diameter curve appears free from all measurement anomalies (hysteresis). The pressure-diameter relationship enables the calculation of the mechanical properties of the artery, in particular by compliance curves and the propagation velocity as a function of the pressure.
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IEEE Transaction on Biomedical Engineering, vol. BME-27, No. 3, Mar. 1980, pp. 150-155.
Meister Jean-Jacques
Tardy Yanik
Asulab SA
Pellegrino Stephen C.
Shumaker Steven J.
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