Thomas M Wascher

US Patent:

7744607, Jun 29, 2010

Filed:

Dec 20, 2007

Appl. No.:

11/961039

Inventors:

Thomas M. Wascher - Appleton WI, US

International Classification:

A61B 19/00

US Classification:

606130, 606 1

Abstract:

A marking catheter made out of a flexible material and having a closed distal end and an open proximal end is provided. The marking catheter is sized and shaped to fit over the probe of a frameless stereotaxy system. One or more marking catheters may be positioned using the frameless stereotaxy system to define accurately an area identified in pre-operative imaging. For example, a plurality of marking catheters may be used to define physically the margins of a brain lesion. The brain lesion may then be removed to expose the positioned catheters, thereby assuring complete and effective lesion removal. The flexible catheters will move with any brain-shift occurring during lesion removal, thereby to maintain an accurate indication of the lesion margin.

US Patent:

7311714, Dec 25, 2007

Filed:

Mar 2, 2004

Appl. No.:

10/791112

Inventors:

Thomas M. Wascher - Appleton WI, US

International Classification:

A61B 19/00

US Classification:

606130, 606 1

Abstract:

A marking catheter made out of a flexible material and having a closed distal end and an open proximal end is provided. The marking catheter is sized and shaped to fit over the probe of a frameless stereotaxy system. One or more marking catheters may be positioned using the frameless stereotaxy system to define accurately an area identified in pre-operative imaging. For example, a plurality of marking catheters may be used to define physically the margins of a brain lesion. The brain lesion may then be removed to expose the positioned catheters, thereby assuring complete and effective lesion removal. The flexible catheters will move with any brain-shift occurring during lesion removal, thereby to maintain an accurate indication of the lesion margin.