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:
Apr. 01, 2014
Filed:
Apr. 14, 2008
Mark S. Humayun, Glendale, CA (US);
Xiaochen Xu, Los Angeles, CA (US);
Qifa Zhou, Arcadia, CA (US);
K. Kirk Shung, Monterey Park, CA (US);
Hossein Ameri, Alhambra, CA (US);
Gerald Chader, Pasadena, CA (US);
Mark S. Humayun, Glendale, CA (US);
Xiaochen Xu, Los Angeles, CA (US);
Qifa Zhou, Arcadia, CA (US);
K. Kirk Shung, Monterey Park, CA (US);
Hossein Ameri, Alhambra, CA (US);
Gerald Chader, Pasadena, CA (US);
Doheny Eye Institute, Los Angeles, CA (US);
Abstract
Systems and methods are disclosed providing for the use of ultrasound energy to measure blood flow within blood vessels by Doppler velocity measurement. Directional high-frequency pulsed-wave Doppler measurements can be made with a suitable ultrasonic needle transducers for in vivo measuring of blood flow. A needle probe can include a ultrasonic material such as PMN-PT. Such blood flow measurements can be made in any part of the body, e.g., in the central retinal vein and branch retinal veins.