Method of determining optimum artery applanation

Details Method of determining optimum artery applanation Method of determining optimum artery applanation

1992-04-15

1993-12-28

Cohen, Lee S.

Surgery

Truss

Pad

128690, 128687, A61B 502

Patent

active

052730468

ABSTRACT:
A method, for use in a non-invasive blood pressure monitoring system, of determining optimum artery applanation. The system uses a stress sensor including a stress sensitive element for detecting stress of tissue overlying an artery of interest. The tissue stress sensor is placed in communication with tissue overlying the artery of interest and at least one electrical signal is obtained therefrom representing stress data across the length of the stress sensitive element. The data represents stress datum communicated to a preselected portion of the stress sensitive element. From the stress datum, various algorithms are used, singly or in combination, to provide the best measure of optimum applanation state. Intra-arterial blood pressure is then calculated using datum collected at the optimum applanation state. In addition, to the optimum applanation methods, a method is disclosed for determining which portion of the stress sensitive element is best suited for estimating intra-arterial blood pressure.

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U.S. Ser. No. 07/500,063 Mar. 27, 1990 Drzewiecki et al.
U.S. Ser. No. 07/621,165 Nov. 30, 1990 Butterfield, et al.

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