Medicament delivery device

摘要

A medicament delivery device includes a generally elongated tubular housing having opposite proximal and distal parts; a needle shield sleeve slidably and coaxially arranged inside the housing with a proximal part of the sleeve protruding a distance outside the proximal part of the housing; a syringe carrier mechanism having a syringe carrier slidably and coaxially arranged within the needle shield sleeve, a syringe having a stopper, a medicament, and a needle, the syringe being coaxially arranged within the syringe carrier; and a holding member connected to the syringe carrier; a first activator member and a second activator member; a drive mechanism adapted to accumulate a drive force for moving the syringe carrier mechanism in a first step and a second step. The second activator member is arranged with an information device for producing audible, visual, and/or tactile feedback to a user about a completed injection.

主权项

1. A medicament delivery device, comprising:
a tubular housing; a needle shield sleeve arranged inside the housing; a syringe carrier arranged within the needle shield sleeve;
the syringe carrier configured to carry a syringe, the syringe comprising a stopper, a medicament, and a needle; a first activator member arranged within the housing and coupled to the needle shield sleeve; a second activator member arranged within the first activator member; a drive mechanism arranged within the second activator member, and
adapted to accumulate a drive force
for moving the syringe carrier in a first step for penetrating a needle of a syringe into an injection site andfor moving a stopper of a syringe in a second step for expelling a medicament through a needle; and an information device arranged to cooperate with a corresponding interacting device arranged on a distal part of the tubular housing after a medicament is expelled, such that a remaining drive force of the accumulated drive force in the drive mechanism forces the second activator member to be displaced toward the distal part of the tubular housing thereby providing feedback about an injection.