Method and system for controllably releasing solutions
US8329477B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Sep 2, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249928
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and system for releasing active ingredients into the surrounding atmosphere is disclosed. In one embodiment, the dispersion rate of the active ingredient through the membrane is passively regulated by adjusting the porosity of the membrane. In another embodiment, materials with microfluidic channels of various diameters are interposed together so that the configuration of the channels approximates a venturi, thereby improving the flow of the solution through the microfluidic channels. In another embodiment, heat is applied to the top membrane layer to further accelerate the rate at which fluid is dissipated through the membrane structure. Devices incorporating membranes with the disclosed properties are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.