Multi-mode syringe
US9504816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2009 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/2493
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe cartridge includes a multi-mode device that defines at least two flow regimes having flow rates that differ in response to the same value of a variable. The multi-mode device defines three flow paths. The first flow path allows flow in only a first direction. The second flow path is configured to allow flow below a predetermined rate in a second direction opposite the first direction in response to a variable having a value below a threshold. The third path is configured to allow flow in the second direction at a rate higher than the predetermined rate in response to the variable reaching a value at or above the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.