Artificial kidney dosing method
US5725775A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1995 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jun 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/929
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An artificial kidney dosing method includes the steps of connecting a patient to an exchanger having first and second compartments separated by a semipermeable membrane. The first compartment is connected to a circuit for extracorporeal blood circulation, and the second compartment has an outlet for draining a waste liquid. After the patient is connected to the exchanger, a perfusion liquid containing a substance (A) is perfused to the patient. The concentration of substance (A) in the blood of the patient is adjusted to a desired concentration {A}.sub.DES, by controlling a flow rate (Q.sub.A) of the perfusion liquid as a function of (1) a flow rate (Q.sub.OUT) of the waste liquid; (2) the desired concentration {A}.sub.DES ; and (3) a concentration {A}.sub.SOL of substance (A) in the perfusion liquid, whereby during this adjustment, a transfer of substance {A} through the semipermeable membrane is taken into account.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.