Medical fluid pump
US6953323B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Aug 29, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87161
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a pump for a dialysis system is provided. The pump includes a first chamber wall including a first aperture, a second chamber wall including a second aperture, a piston, at least a portion of which can move through the second aperture, the piston including a third aperture, and first and second membranes disposed between the first and second chambers walls. A vacuum can be applied through the first aperture to pull the first membrane towards the first chamber wall and can be applied through the third aperture to pull the second membrane towards the piston. The piston can thereafter move the second membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.