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:
Mar. 29, 1994
Filed:
Sep. 23, 1992
Applicant:
Inventors:
John W Sliwa, Jr, Palo Alto, CA (US);
Sevig Ayter, Cupertino, CA (US);
Champa G Sridhar, Los Altos, CA (US);
John P Mohr, III, San Jose, CA (US);
Samuel M Howard, Mountain View, CA (US);
Michael H Ikeda, San Jose, CA (US);
Assignee:
Acuson Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
12866203 ; 310334 ; 29 2535 ;
Abstract
An ultrasound transducer comprising an array of individual piezoelectric transducer elements mounted upon an improved backing comprising rigid polymeric or polymer-coated particles fused into a macroscopically rigid structure having remnant tortuous permeability to provide high acoustic attenuation and to permit fluid passage into the backing structure during fabrication.