Medical fluid machine with air purging pump
US7500962B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Mar 8, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87161
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical fluid machine includes a housing providing a first wall and a second wall, the first and second walls at least partially defining a pump chamber. A fluid receptacle is located within the pump chamber, the fluid receptacle including first and second flexible membranes configured to be moved apart to accept a medical fluid and moved together to dispel the fluid. A medical fluid outlet is in communication with the fluid receptacle. A first valve arrangement is configured to enable medical fluid in a sufficiently air-free condition to be delivered from the receptacle through the medical fluid outlet to a patient. A second valve arrangement is configured to enable medical fluid with entrained air to be delivered instead from the receptacle through the medical fluid outlet to an entrained air destination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.