Means and method for modeling and treating specific tissue structures

US6546787B1 · kind B1 · utility

Assignee

• Regents of the University of Minnesota · US

Inventors

• Peter J. Schiller · Gettorf, DE
• Angela K. Drexler · Maplewood, US
• David R. Wulfman · Minneapolis, US
• Ronald C. McGlennen · Edina, US

Key dates

• Filing date: Mar 25, 1999
• Grant date: Apr 15, 2003
• Expiry date: Mar 25, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/046
• WIPO field: Medical technology
• WIPO sector: Instruments

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.