Patent · US Active

Bioimpedance circumference measurement

US10952643B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Fresenius Medical Care Holdings, Inc. · US

Inventors

Fansan Zhu · Great Neck, US
Nathan W. Levin · New York, US

Key dates

Filing date	Jun 26, 2018
Grant date	Mar 23, 2021
Priority date	—
Expiry date	Jul 15, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2562/0209
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Apparatus is disclosed for measuring the circumference of a limb of an individual, e.g., the individual's arm and/or calf. The apparatus uses one or more magnetic strips which surround the limb and contain magnetic coding of length information. Tension is applied to the magnetic strip by a tensioning assembly, which can be a pressure cuff or a stepping motor, and a magnetic read head reads the magnetic coding of length information from the strip. When used in a bioimpedance analysis procedure, the length information can be used to convert measured voltage differences into normalized bioimpedance values, e.g., resistivity values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.