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.
Patent No.:
Date of Patent:
Nov. 03, 2020
Filed:
Oct. 12, 2011
Nathan W. Levin, New York, NY (US);
Fansan Zhu, Flushing, NY (US);
Nathan W. Levin, New York, NY (US);
Fansan Zhu, Flushing, NY (US);
Fresenius Medical Care Holdings, Inc., Waltham, MA (US);
Abstract
Methods and apparatus for predicting/estimating the dry weight of an individual, e.g., a patient undergoing dialysis treatment, are provided. The techniques employ a bioimpedance measurement () on the individual's calf () to obtain information regarding the extracellular fluid volume of the calf. Using a measurement of the calf's circumference (), a resistivity value is calculated, normalized by the individual's body mass index (BMI), and then offset by a reference value to obtain a new variable, ΔnRho, which is shown, by comparison with a 'gold standard' (FIGS.-), to be highly effective in predicting/estimating dry weight (FIGS.-and-). The techniques are easy to use and provide accurate dry weight predictions/estimations without substantially adding to the complexity or cost of dialysis procedures. The techniques can also be used for individuals who are not renal patients, e.g., patients suffering from other diseases in which fluid overload can occur, athletes, fitness enthusiasts, and the like.