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. 08, 2013
Filed:
Aug. 28, 2006
Shawn X. Gao, Irvine, CA (US);
Nader Nazarifar, Laguna Nigel, CA (US);
Cornelis J. Drost, Ithaca, NY (US);
Yuri M. Shkarlet, Pompano Beach, FL (US);
Shawn X. Gao, Irvine, CA (US);
Nader Nazarifar, Laguna Nigel, CA (US);
Cornelis J. Drost, Ithaca, NY (US);
Yuri M. Shkarlet, Pompano Beach, FL (US);
Novartis AG, Basel, CH;
Abstract
A surgical cassette have a rigid fluid channel formed into a rigid plastic component or housing. The piezoelectric crystals of an ultrasonic flow meter are positioned on one side of the fluid channel. The side wall of the fluid channel opposite the piezoelectric crystals is exposed to fluid in the flow channel on its interior side and is exposed to ambient air on its exterior side. The interface between the wall and the air acts as an acoustic reflector for the operation of the ultrasonic flow meter.