Method for controlling of a filtration rate, controller, and devices
US9186448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2011 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | May 1, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a method for controlling a filtration rate during treatment of a body fluid, e.g., during hemofiltration or dialysis, comprising the steps of defining a target relation, or a development during dialysis thereof, between one or more calculated or measured value(s) reflecting the mass, concentration, or the volume of a substance comprised by a patient's tissue or bodily fluid, and one or more calculated or measured value(s) reflecting a patient's distribution space or an approximation thereof; during dialysis repeatedly calculating or measuring value(s) reflecting the mass, concentration or the volume of the substance and/or reflecting the distribution space or an approximation thereof, and determining the relation therebetween at least once; and controlling the filtration rate of the body fluid treatment device such that the determined relation is or approaches the target relation. It also relates to systems for conducting the method, and related computer-readable storage media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.