Self-contained portable apparatus for administration of a drug solution
US8267894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jun 22, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/16877
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A self-contained portable apparatus for administration of a drug solution includes a housing having an enclosure for receiving a flexible pouch containing a drug solution, the output of which is connectable to a conduit for delivering the drug solution to a recipient. A pressurization system is arranged for providing a constant and controllable gas pressure to the housing in order to obtain a controllable delivery of the drug solution. The pressurization system includes a pressure source for delivering positive pressure gas; a pressure accumulation tank connected to the source and the second chamber; a one-way valve arranged between the pressure source and the pressure accumulation tank; and a mechanical pressure regulator arranged between the pressure accumulation tank and the housing. Hereby, an extremely stable and well controllable output pressure and output flow is obtainable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.