The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2017
Filed:
Feb. 26, 2010
Andreas Caduff, Schmerikon, CH;
Hans-joachim Krebs, Lachen, CH;
Mark Stuart Talary, Zurich, CH;
Pavel Zakharov, Zurich, CH;
Andreas Caduff, Schmerikon, CH;
Hans-Joachim Krebs, Lachen, CH;
Mark Stuart Talary, Zurich, CH;
Pavel Zakharov, Zurich, CH;
BIOVOTION AG, Zurich, CH;
Abstract
A parameter affecting the absorptivity or the concentration of blood in tissue is measured using a semiconductor light source () and a light detector (). The semiconductor light source () is operated at several operating conditions, at which it has different temperatures and therefore different emission spectra. In particular, the operating conditions correspond to different time intervals after switching the light source () on, while the light source () has not yet reached thermal equilibrium. This allows to perform a spectroscopic measurement using one light source only, which increases accuracy and reduces device cost.