Electronically monitored injection device
US8708957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2008 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6018
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a medical injection device (1) for use in combination with a medicament filled cartridge (2), the injection device being provided with a spring-assisted injecting mechanism where energy released from the spring moves a plunger (3) of a held cartridge (2). Sensor circuitry is adapted to detect speed related data during injection so at to detect an abnormal speed condition, such as a needle blocking condition, a priming condition or an air purge condition. The invention also relates to a medical injection device comprising sensor circuitry and user communicating means to provide a recommended needle retraction waiting period which is dependent on the speed of injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.