Several types of the cuffless blood pressure (BP) devices have been developed to calculate BP values mainly from the heart rate (HR). But the cuffless devices suffer from low accuracy compared to the BP values directly measured using sphygmomanometer a with inflatable cuff. Since cuffless BP estimated by optical technology is affected not only by HR but also by vascular resistance, vascular resistance can cause inaccuracies. Vascular resistance is determined by the stiffness of the blood vessels and the air temperature. To examine how air temperature affects the fingertip BP, we prototyped a Fingertip BP device with a non-contact thermometer for measuring outside temperature. This presentation clarifies the findings during the trial production.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.