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:
May. 22, 2007
Filed:
Feb. 27, 2003
Hugh F. Stoddart, Groton, MA (US);
Hugh A. Stoddart, Harvard, MA (US);
Thomas Christopher John Sefranek, Shirley, MA (US);
Timothy Olden, Nashua, NH (US);
Dale Martin, Lunenburg, MA (US);
Hugh F. Stoddart, Groton, MA (US);
Hugh A. Stoddart, Harvard, MA (US);
Thomas Christopher John Sefranek, Shirley, MA (US);
Timothy Olden, Nashua, NH (US);
Dale Martin, Lunenburg, MA (US);
Neurophysics Corporation, Shirley, MA (US);
Abstract
A new and improved method and apparatus for determining cerebral oxygenation. In one basic aspect, a new processing methodology for oxygenation determination, in particular cerebral oxygenation, is provided based on the apprehension and discovery that time-based photon quantity determinations of the wavelength-specific light leaving the head of the patient may be significantly improved, and simplified, by determining the quantity of returning photons in at least one set of two different but closely spaced points in time following the instant of injection, and then taking the ratio of the determinations in each set, to thereby cancel and remove several important sources of error.