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:
Jul. 26, 2022
Filed:
Nov. 22, 2017
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Jeremy Joseph Dahl, Palo Alto, CA (US);
Scott S. Hsieh, Anaheim, CA (US);
Marko Jakovljevic, Redwood City, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
Measuring local speed of sound for ultrasound by inducing ultrasound waves in a subject by focusing an ultrasound beam, using an ultrasound Tx transducer to propagate waves from a focal point to the surface, measuring a time of arrival of the waves using at least three single Rx transducer surface elements, signal traces recorded on individual Rx transducers are evenly sampled in time, an average speed of sound equals an arithmetic mean of local sound-speed values sampled along a wave path, each Rx transducer outputs a separate arrival time of the waves, computing a local speed of sound (c) of waves from an average speed of sound (c) using a computer that receives arrival times, where where c=d/T, dis the length a tissue traveled during one sampling period T, and using cto differentiate human disease, or with ultrasound measurements to differentiate degrees of human disease.