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. 02, 1993
Filed:
Jul. 26, 1991
Applicant:
Inventors:
Richard W Fetter, Colgate, WI (US);
Peter D Gadsby, Cedarburg, WI (US);
Jeffrey L Kabachinski, Boynton Beach, FL (US);
Assignee:
Labthermics Technologies, Inc., Champaign, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
128804 ; 128784 ; 219 / ;
Abstract
Heating pattern uniformity is provided in a coaxial microwave hyperthermia probe by varying the open area in the outer conductor in an axial direction such that there is a maximum open area in the axial center portion. The variations may be provided by winding an outer conductor in a helical pattern with a variable pitch or by cutting openings of axially varying size in a solid outer conductor. The invention is applicable to both flexible and rigid probes.