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:
Apr. 28, 2020

Filed:

Aug. 28, 2015
Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Darryl Gerard Thelen, Madison, WI (US);

Jack Anthony Martin, Madison, WI (US);

Matt S. Allen, Middleton, WI (US);

Daniel Joseph Segalman, East Lansing, MI (US);

Laura Ann Slane, Penfield, NY (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 8/08 (2006.01); A61B 8/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/4519 (2013.01); A61B 5/0053 (2013.01); A61B 5/4523 (2013.01); A61B 5/4533 (2013.01); A61B 8/485 (2013.01); A61B 8/4494 (2013.01); A61B 8/5207 (2013.01); A61B 2562/0219 (2013.01);
Abstract

Axial stress or similar properties in a stressed tendon or ligament are measured by mechanical excitation of a shear wave in the tendon or ligament measured using ultrasonic displacement techniques at least two different longitudinal positions to derive a shear wave propagation speed. This shear wave propagation speed may be equated to an axial stress on the tissue using a model. Rapidly repeated measurements allow dynamic axial stress measurements to be obtained for clinical study.


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