Needle arrangement
US10137237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3267
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a needle arrangement for an injection device. The needle arrangement is made up from needle cannula which is mounted such that a distal part having a distal tip extends in a distal direction. Further, a telescopically movable shield carrying a cleaning chamber surrounds at least the tip of the needle cannula between injections such that the tip of the needle cannula is maintained inside the cleaning chamber between subsequent injections. The cleaning chamber is at least distally provided with a pierceable septum through which the needle cannula penetrates during injections. For guiding the needle cannula during injections a telescopically movable tube is provided. During injections the distal end of the telescopically movable tube at least partly penetrates the distal septum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.