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:
Aug. 16, 2011
Filed:
Apr. 25, 2008
Arminas Ragauskas, Kaunas, LT;
Gediminas Daubaris, Kaunas, LT;
Vytautas Petkus, Kaunas, LT;
Renaidas Raisutis, Kaunas, LT;
Arminas Ragauskas, Kaunas, LT;
Gediminas Daubaris, Kaunas, LT;
Vytautas Petkus, Kaunas, LT;
Renaidas Raisutis, Kaunas, LT;
UAB Vittamed Technologijos, , LT;
Abstract
A non-invasive method for monitoring of cerebrovascular blood flow autoregulation state includes sensing intracranial blood volume waves, filtering a slow wave, respiratory wave, and pulse wave informative components from said intracranial blood volume waves, filtering slow wave and respiratory wave reference components from the pulse wave envelope, calculating a first phase shift between said slow wave informative component and said slow wave reference component, calculating a second phase shift between said respiratory wave informative component and said respiratory wave reference component, and calculating the index of evaluation of the status of cerebral autoregulation state (ICAS) from said first phase shift and said second phase shift.