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:
May. 05, 2009
Filed:
Jul. 26, 2006
Mani Prakash, Campbell, CA (US);
Francesca Rossetto, San Francisco, CA (US);
Anthony Lee, Mountain View, CA (US);
Steven Kim, San Jose, CA (US);
Ted Su, San Diego, CA (US);
Jonathan Glassman, Indianapolis, IN (US);
Mani Prakash, Campbell, CA (US);
Francesca Rossetto, San Francisco, CA (US);
Anthony Lee, Mountain View, CA (US);
Steven Kim, San Jose, CA (US);
Ted Su, San Diego, CA (US);
Jonathan Glassman, Indianapolis, IN (US);
Vivant Medical, Inc., Boulder, CO (US);
Abstract
Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating at a tip to allow for direct insertion into tissue. Antenna rigidity comes from placing distal and proximal radiating portions in a pre-stressed state, assembling them via threaded or overlapping joints, or fixedly attaching an inner conductor to the distal portion. The inner conductor is affixed to the distal portion by, e.g., welding, brazing, soldering, or by adhesives. A junction member made from a hard dielectric material, e.g., ceramic, can be placed between the two portions and can have uniform or non-uniform shapes to accommodate varying antenna designs. Electrical chokes may also be used to contain returning currents to the distal end of the antenna.