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:
Mar. 22, 2022

Filed:

Jun. 12, 2017
Applicants:

Ichikawa Electric Co., Ltd., Hamura, JP;

Shinshu University, Matsumoto, JP;

Inventors:

Norio Koike, Hamura, JP;

Satoshi Yasumoto, Hamura, JP;

Jun Nakano, Hamura, JP;

Yukio Sai, Hamura, JP;

Kenji Furihata, Matsumoto, JP;

Tetsuya Goto, Matsumoto, JP;

Kazuhiro Hongo, Matsumoto, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/03 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/031 (2013.01); A61B 5/036 (2013.01); A61B 5/7278 (2013.01);
Abstract

An intracranial pressure estimating method includes: an acquisition step (S) of acquiring time-series data on external ear canal pressure pulse waves of a subject; an analysis step (S) of analyzing external ear canal pressure pulse wave data obtained by digitalizing the time-series data on the external ear canal pressure pulse waves, to calculate a first formant frequency of the external ear canal pressure pulse wave data; a correction step (S) of correcting the calculated first formant frequency based on personal information on the subject to calculate a corrected value; and an estimation step (S) of calculating an estimated value of an intracranial pressure based on the calculated corrected value.


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