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:
Jun. 18, 2019

Filed:

May. 11, 2012
Applicants:

Katsuya Oikawa, Tokyo, JP;

Makoto Yamakawa, Kyoto, JP;

Tsuyoshi Shiina, Kyoto, JP;

Inventors:

Katsuya Oikawa, Tokyo, JP;

Makoto Yamakawa, Kyoto, JP;

Tsuyoshi Shiina, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 8/08 (2006.01); A61B 8/00 (2006.01); G01S 7/52 (2006.01);
U.S. Cl.
CPC ...
A61B 8/485 (2013.01); A61B 8/0825 (2013.01); A61B 8/403 (2013.01); A61B 8/429 (2013.01); A61B 8/4227 (2013.01); A61B 8/5223 (2013.01); A61B 8/54 (2013.01); G01S 7/52042 (2013.01); A61B 8/0858 (2013.01);
Abstract

The present invention relates to formation of an image indicating viscoelastic characteristics in a specimen by a simple method. Stepwise pressurization in which, after pressure is instantaneously increased to a certain pressure value, the certain pressure value is kept for a certain time period is performed to measure the variation with time of strain distribution in the specimen and to calculate a stress from strain distribution at a saturation measurement time when the effect of the viscosity of a viscoelasticity measurement reference layer is saturated, thereby evaluating the modulus of elasticity and the coefficient of viscosity of a body tissue.


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