Automated dialysis system including a piston and vacuum source
US8075526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2010 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Oct 13, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A peritoneal dialysis system includes a hardware unit including a piston and at least one vacuum source; a door connected to the hardware unit, the door including a cavity, the cavity having a diameter; the hardware unit further including a structure positioned opposite the door, the structure defining an aperture; a disposable unit including first and second fluid receiving membranes, the disposable unit disposed between the structure and the door; the at least one vacuum source operable to apply a vacuum to at least one of the first and second membranes of the disposable unit; the piston, at least a portion of which moves through the aperture, in operation contacting one of the membranes, the piston including a piston head having a diameter smaller than the diameter of the cavity in the door; and a dialysis fluid opening enabling dialysis fluid to be pulled in between the first and second membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.