Method and a device for determining the dry weight of a patient with kidney failure
US7072710B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2001 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/52
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for determining the dry weight wgtdry(t) of a patient at a time t by determining the extracellular water volume ECV(t) and the weight Wgt(t) of the patient at time t and by deriving the dry weight wgtdry(t) of the patient from an intersection of a function derived from the determined ECV(t) and Wgt(t) values with a previously established extracellular water volume (ECV) against dry weight (wgtdry(t)) reference relation representing healthy subjects. To obtain more accurate results it is also proposed to take into account a compartmental mass correction Δm(t). The invention also relates to a device for deriving the dry weight wgtdry(t).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.