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:
Feb. 18, 2020
Filed:
May. 24, 2013
The Regents of the University of California, Oakland, CA (US);
Arlene Doria, Irvine, CA (US);
Maulik Patel, Irvine, CA (US);
Nicholas E Martin, Irvine, CA (US);
Yuka Okabe, Irvine, CA (US);
Abraham Lee, Irvine, CA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);
Abstract
Novel systems and methods are provided that rapidly separate particles from a liquid. In an embodiment, a small volume of liquid (such as a blood sample, or any other solution with a concentration of particles) is input into a flow device implemented as a unilateral channel. When activated by an acoustic energy source (such as an ultrasound pulse), gas-liquid interfaces naturally occurring between the liquid in the flow device and a plurality of gas-filled cavities that line the channel will oscillate and create stable cavitation streaming within a localized region of the surrounding liquid. These oscillations create micro-vortices that gently remove and trap particles and debris from the liquid and adjacent surfaces. Fluid and particle manipulation can thus be accomplished on a passive, disposable chip that is placed on top of an external acoustic transducer with a coupling medium.