Injection device
US9675758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2005 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jul 27, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention concerns an injection device with a housing adapted to receive a syringe having a discharge nozzle, the housing having an indicator opening. There is a trigger and a forward drive arranged to act upon the syringe on actuation of the trigger to advance the syringe from a retracted position to an extended position thereby discharging the contents of the syringe through the discharge nozzle. A support member is in contacting juxtaposition with the housing and a return drive is supported by the support member and arranged to act upon the syringe after the contents of the syringe has been discharged so that the syringe can be withdrawn from the extended position to the retracted position. Advantageously, the support member is arranged in the housing so that the second drive does not obscure an inspection of the contents of the syringe through the indicator opening. Hence, it can be clearly determined whether the contents of the syringe have been expelled from the syringe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.