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:
Oct. 09, 2018
Filed:
Feb. 10, 2010
Applicant:
Peter Dirksen, Valkenswaard, NL;
Inventor:
Peter Dirksen, Valkenswaard, NL;
Assignee:
KONINKLIJKE PHILIPS ELECTRONICS N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61H 1/00 (2006.01); A61B 8/00 (2006.01); B06B 1/02 (2006.01);
U.S. Cl.
CPC ...
A61B 8/00 (2013.01); A61B 8/4483 (2013.01); B06B 1/0292 (2013.01);
Abstract
A CMUT transducer cell suitable for use in an ultrasonic CMUT transducer array has a membrane with a first electrode, a substrate with a second electrode, and a cavity between the membrane and the substrate. The CMUT is operated in a precollapsed state by biasing the membrane to a collapsed condition with the floor of the cavity, and a lens is cast over the collapsed membrane. When the lens material has polymerized or is of a sufficient stiffness, the bias voltage is removed and the lens material retains the membrane in the collapsed state.