Injection device with controlled needle retraction
US8043262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/582
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection device, in some embodiments an autoinjector, which includes a housing, an actuating sleeve carried by the device to be movable relative to the housing and which can be placed at a point of injection in a position of insertion, an injection needle extendable from the end of the injection device when the injection device is in the position of insertion and moveable into the interior of the injection device, and an actuating cam arranged in an axially fixed manner relative to the injection needle and engageable in a locking recess when the injection device is in the position of insertion to prevent the injection needle from being moved into the interior of the injection device, said actuation cam being releasable from engagement with the locking recess by the actuating sleeve, thereby releasing the injection needle for movement into the injection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.