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. 04, 2008

Filed:

May. 12, 2004
Applicant:

Takashi Shiokawa, Tokyo, JP;

Inventor:

Takashi Shiokawa, Tokyo, JP;

Assignee:

Tanita Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/05 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The impedance of intracellular water (Z), height (H), weight (W), and age (A) of the subject are included as variables in an equation that estimates muscle mass (MM). Impedance of extracellular water (Z) is determined by a step of applying an alternating current to the body and measuring the resulting impedance. Impedance of total body water (Z) is determined by a step of applying a high frequency alternating current to the body and measuring the resulting impedance. Zis determined by calculating an inverse of the result of subtracting an inverse of measured Zfrom an inverse of measured Z. The equation for muscle mass is of the form: MM−aH/Z+bW+cA+d.


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