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. 18, 2011
Filed:
Jun. 15, 2006
John A. Shepherd, Fairfax, CA (US);
Serghei Malkov, Mountain View, CA (US);
Steven R. Cummings, Mill Valley, CA (US);
John A. Shepherd, Fairfax, CA (US);
Serghei Malkov, Mountain View, CA (US);
Steven R. Cummings, Mill Valley, CA (US);
Sutter West Bay Hospitals, San Francisco, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
The present invention provides an apparatus and methods for measuring proportions of body materials in body parts. The apparatus includes a device for retaining the body part, at least one reference material with at least two thicknesses positioned adjacent to the device, and at least three radiopaque markers positioned on the reference material(s). The reference material(s) each have an attenuation characteristic that is selected in correspondence to the body materials in the body part. The apparatus further includes a radiation device to simultaneously irradiate the body part, the reference material(s) and the radiopaque markers as well as a detector to detect attenuated beams of radiation and a pattern projected from the irradiated radiopaque markers. A calculation device determines the thickness of the body part based on this projected pattern and compares the attenuation values of the body part and the reference material(s) at the determined thickness.