Method of disinfection for a dialysis machine
US5895578A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/169
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for disinfection of the hydraulic circuit of a dialysis machine, comprising an inlet (E) for connection to an external water source and a plurality of open lines (1, 2, 4a, 4b, 26) intended to be connected, in an operational configuration of the machine, to different consumable accessories, comprises the steps of: closing the open lines on the hydraulic circuit in such a way as to form a closed network of lines; bringing a reservoir (40) containing a concentrated disinfection liquid into communication with the hydraulic circuit, in proximity to the inlet; instigating a proportional flow of water and of concentrated disinfection liquid in the hydraulic circuit in such a way as to produce a first liquid having a bactericidal action; interrupting the flow of water and of concentrated disinfection liquid when the hydraulic circuit is filled with bactericidal liquid, the initial volume of concentrated disinfection liquid in the reservoir being chosen such that at the end of the filling of the hydraulic circuit, a residual volume remains in the reservoir (40); adding a volume of water to the residual volume in the reservoir (40) in order to produce a second liquid; emptying the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.