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:
Aug. 21, 2001
Filed:
Nov. 16, 1998
Applicant:
Inventors:
Axel F. Brisken, Freemont, CA (US);
N. Parker Willis, Atherton, CA (US);
Assignee:
Cardiac Pathways Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 8/12 ;
U.S. Cl.
CPC ...
A61B 8/12 ;
Abstract
A catheter including an elongated body member, an ultrasound transducer located on the elongated body member, and dampening means for forming an ultrasound dampening region adjacent to a portion of the ultrasound transducer, is disclosed. The ultrasound transducer is configured to transmit or receive an ultrasound signal. The ultrasound dampening region is configured to improve uniformity of said ultrasound signal in three-dimensional space. Preferably, the dampening means includes air or a material containing air.