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:
Jul. 17, 2007
Filed:
Sep. 28, 2005
Christopher L. Brace, Middleton, WI (US);
Daniel Warren Van Der Weide, Madison, WI (US);
Paul F. Laeseke, Madison, WI (US);
Fred T. Lee, Jr., Madison, WI (US);
Christopher L. Brace, Middleton, WI (US);
Daniel Warren van der Weide, Madison, WI (US);
Paul F. Laeseke, Madison, WI (US);
Fred T. Lee, Jr., Madison, WI (US);
Micrablate, Middleton, WI (US);
Abstract
A method and device delivers microwave power to an antenna through a coaxial cable utilizing air or other gases as its dielectric core. The cable includes supports made of low-loss materials to keep the inner conductor centered in the cable, and defining spaces therebetween for the air or gas. Channels in the supports allow the air or gas to circulate in the cable. The gas may be chilled or cooled to provide an addition level of heat dissipation. The device enables delivery of large amounts of power to tissue without undue heating of the feed cable or peripheral tissues, and without increasing the diameter of the feeding cable or antenna, keeping the antenna safe for percutaneous use.