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.

Date of Patent:
May. 23, 2017

Filed:

Sep. 17, 2012
Applicant:

The Trustees of Dartmouth College, Hanover, NH (US);

Inventors:

Songbai Ji, Lebanon, NH (US);

David W. Roberts, Lyme, NH (US);

Keith D. Paulsen, Hanover, NH (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/107 (2006.01); A61B 5/00 (2006.01); G02B 21/00 (2006.01); G02B 21/36 (2006.01); A61B 90/20 (2016.01); G06T 7/33 (2017.01); A61B 19/00 (2006.01); G06T 7/00 (2006.01); A61B 90/00 (2016.01);
U.S. Cl.
CPC ...
A61B 5/1079 (2013.01); A61B 5/0053 (2013.01); A61B 5/0077 (2013.01); A61B 90/20 (2016.02); G02B 21/0012 (2013.01); G02B 21/367 (2013.01); G06T 7/344 (2017.01); A61B 2090/364 (2016.02); A61B 2090/371 (2016.02); G06T 2200/04 (2013.01); G06T 2207/10012 (2013.01); G06T 2207/10056 (2013.01); G06T 2207/30016 (2013.01);
Abstract

An apparatus and method for measuring mechanical properties of tissue has a stereo optical surgical microscope with at least one objective lens and at least two digital cameras such that paired images obtained from the digital cameras form stereo pairs, and a digital image processing system adapted to determine surface topography of tissue from the stereo pairs of images and a resulting surface displacement map as a result from indentation. The apparatus has an one indenter; and mechanical modeling routines stored in memory of the image processing system, the mechanical modeling routines capable of constructing computer models of mechanical properties of tissue, and fitting parameters of the computer model to observed surface displacement maps generated by coregistering surface topography of tissue with and without the indenter positioned on the tissue. In an embodiment, fitted parameters of the computer model are displayed and used to adjust a surgical plan. An apparatus and method for measuring mechanical properties of tissue has a stereo optical surgical microscope with at least one objective lens and at least two digital cameras such that paired images obtained from the digital cameras form stereo pairs, and a digital image processing system adapted to determine surface topography of tissue from the stereo pairs of images and a resulting surface displacement map as a result from indentation. The apparatus has an one indenter; and mechanical modeling routines stored in memory of the image processing system, the mechanical modeling routines capable of constructing computer models of mechanical properties of tissue, and fitting parameters of the computer model to observed surface displacement maps generated by coregistering surface topography of tissue with and without the indenter positioned on the tissue. In an embodiment, fitted parameters of the computer model are displayed and used to adjust a surgical plan.


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