Vented dispensing device and method
US8491529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2008 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jun 14, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a fluid dispensing device that includes at least one reservoir to hold the therapeutic fluid, at least one other unit requiring communication with ambient air, at least partly, to operate, and at least one housing defining an interior to retain the at least one reservoir and the at least one other unit. The at least one housing has at least one vent port formed on one or more of its walls. The at least one vent port is adapted to direct or communicate air to maintain pressure equilibrium between the air pressure in the interior of the at least one housing and the ambient air pressure outside the at least one housing, and provide communication with the ambient air to the at least one other unit requiring air to enable operation of the at least one other unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.