Pen-type injector having an electronic control unit

Details Pen-type injector having an electronic control unit Pen-type injector having an electronic control unit

2005-09-13

2005-09-13

Lucchesi, Nicholas D. (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

06942646

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.

REFERENCES:
patent: 5928201 (1999-07-01), Poulsen et al.
patent: 6397098 (2002-05-01), Uber et al.
patent: 0 293 958 (1988-12-01), None
patent: 0 362 484 (1990-04-01), None
patent: WO 90/09202 (1990-08-01), None

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