Pen-type injector having an electronic control unit
US6942646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Dec 21, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/01
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection device for injection of a medicament from a first medicament cartridge (40) is disclosed. The injection device comprises a drive mechanism (42) for selectively dispensing the medicament from the first medicament cartridge (40), a dial dose mechanism (12, 14) by which a user may determine a required dose of medicament to be dispensed, an electronic control unit for controlling the operation of the drive mechanism (42) in response to the dial dose mechanism (12, 14) and a display panel (10). When an insufficient amount of medicament remains in the first medicament cartridge (40) to enable the required dosage to be dispensed, the insufficient amount of medicament may be dispensed at the discretion of the user, the electronic control unit storing a value corresponding to a difference between the required dose and the insufficient amount of medicament, the value being presented to the user on the display panel (10) as a first amount of medicament to be dispensed from a replacement medicament cartridge following replacement of the first medicament cartridge (40) with the replacement medicament cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.