A Medicament Delivery Device
AssigneeOwen Mumford Limited
InventorToby Cowe
Life of this patent
Estimating the term…
Abstract
A device (1) for delivering an injectable drug to a patient for example from a conventional syringe (37) with a hypodermic needle. The device (1) provides to a user an audible, visible and/or tactile end of dose indication after all of the medicament has been delivered. The end of dose indication can be provided by releasing energy stored within an energy storage means (3d), energy having been imparted to the energy storage means (39) during the delivery of the injectable drug. The energy storage means (3d) acts upon an end of dose indicator (41) which interacts with another part of the device (1), for example an external housing (3), to produce the end of dose indication.
Claims12
A medicament delivery device comprising:
- a container for a medicament;
- a plunger for acting upon the medicament within the container to expel the medicament from the container;
- a plunger drive mechanism;
- a plunger drive energy source;
- a connector;
- an end of a dose indicator and an end of a dose indication energy storage mechanism connected to the plunger by the connector by a releasable attachment, wherein;
- the medicament delivery device is configured such that, during its operation, movement of the plunger under action of the plunger drive mechanism causes energy from the plunger drive energy source to be imparted to the dose indication energy storage mechanism and to be stored by it and wherein upon the plunger reaching substantially an end of its travel the releasable attachment between the connector and the dose indication energy storage mechanism is released and the dose indication energy storage mechanism acts upon the end of the dose indicator, the end of the dose indicator interacting with the medicament delivery device to produce an end of dose indication.
(canceled)
Dependencies are inferred from the claim text.