04423738 is referenced by 50 patents and cites 9 patents.

Intra-arterial blood pressure is noninvasively measured and monitored by an electromechanical force sensor which is made up of an array of individual force sensing elements, each of which has at least one dimension smaller than the lumen of the underlying artery wherein blood pressure is to be measured, and the individual force sensitive element which generates the waveform of maximum amplitude is used to monitor blood pressure.

Title
Noninvasive blood pressure monitoring transducer
Application Number
5/848753
Publication Number
4423738
Application Date
November 4, 1977
Publication Date
January 3, 1984
Inventor
Peter M Newgard
Redwood City
CA, US
Agent
Urban H Faubion
Assignee
SRI International
CA, US
IPC
A61B 5/02
View Original Source