Gas generation dispenser method for on-demand fluid delivery
US8353426B2 · kind B2 · utility
14Cited by
110References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2011 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8231
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of dispensing a fluid comprising generating a gas from a liquid, directing the gas to an expandable gas chamber to expand a volume of the expandable gas chamber, reducing a volume of a fluid chamber in response to expansion of the expandable gas chamber to dispense an amount of the fluid from the fluid chamber, and removing the gas from the expandable gas chamber to collapse the expandable gas chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.