Shielded needle cannula
US10828427B2 · kind B2 · utility
0Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2016 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Apr 3, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3267
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to an injection system or a needle assembly in which a needle cannula secured to an injection device is shielded by a axially movable needle shield. Should the needle cannula be exposed to a force above a predetermined value e.g. if a user drops the injection device onto a hard surface, a locking mechanism will automatically lock and block further movement of the axially movable needle shield and thus render the injection device unusable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.