Pre-filled disposable injection device
US11007327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2013 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jan 24, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a pre-filled disposable injection device and a needle cannula in combination. The prefilled disposable injection device (1) is made from a housing (2) containing a non-exchangeable cartridge (10) for storing a liquid drug sufficient for a number of injections. The proximal end of the pre-filled injection device (1) carries the dose setting button (3) and the distal end carries the needle cannula (20) having a lumen (21) through which the settable dose is expelled. The distal end (23) of the needle cannula (20) is covered by a telescopic needle covering shield (30) which shield (30) can operate between a first position covering the tip (24) of the needle cannula (20) and a second retracted position allowing an injection to be performed. The shield (30) carries a cleaner (50) which cleans at least the tip (24) of the needle cannula (20) between successive injections such that the prefilled injection device can be used without changing the needle cannula (20) during its life cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.