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:
Apr. 15, 2003
Filed:
Mar. 25, 1999
Applicant:
Inventors:
Peter J. Schiller, Coon Rapids, MN (US);
Angela K. Drexler, Maplewood, MN (US);
David R. Wulfman, Minneapolis, MN (US);
Ronald C. McGlennen, Edina, MN (US);
Assignee:
Regents of the University of Minnesota, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/00 ;
U.S. Cl.
CPC ...
G01N 3/00 ;
Abstract
Diagnostic imaging methods, methods of detecting the margin of tissue structures and bioresponsive needle systems are disclosed. The methods rely on the use of strain signals provided by a strain gage mounted on the wall of one or more needles as the needle or needles are moved through tissue. The systems employ a strain gage mounted on the wall of the needle and a strain monitor providing feedback to a user.