MEDICAMENT DELIVERY DEVICE WITH DISPENSE INTERFACE SENSOR AND METHOD CONTROLLING THE DEVICE
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Accused Products
Abstract
A medicament delivery device is shown for the administration of one or more drug agents. The device comprises a medicament cartridge retainer for holding a medicament cartridge. A dispense interface can be attached to an attachment of the device for facilitating fluidic communication from the device. Further, an interface sensor is configured to provide an output indicative of whether the dispense interface is attached to the attachment. The device also comprises a piston rod for driving a bung of the medicament cartridge, and a drive train for advancing the piston rod to the bung. A controller is configured to control the drive train to advance the piston rod towards the bung when the output of the interface sensor indicates that the dispense interface is not on the attachment. The controller is further configured to disable advancement of the piston rod when the output of the interface sensor indicates that the dispense interface is at least partially on the attachment.
46 Citations
30 Claims
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1-15. -15. (canceled)
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16. A medicament delivery device for the administration of one or more drug agents, the device comprising
a medicament cartridge retainer for holding a medicament cartridge, an attachment for attachment thereto of a dispense interface, the dispense interface for providing an exit pathway for the medicament contained in the cartridge, an interface sensor configured to provide an output indicative of whether the dispense interface is attached to the attachment, a piston rod for driving a bung of the medicament cartridge, a drive train for advancing the piston rod to the bung, a controller configured to control the drive train to advance the piston rod towards the bung when the output of the interface sensor indicates that the dispense interface is not on the attachment and to disable advancement of the piston rod when the output of the interface sensor indicates that the dispense interface is at least partially on the attachment, wherein the controller is operative to sense stalling of the drive train, and wherein the controller is further configured to stop the drive train when stalling of the drive train is sensed.
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29. A method for controlling a medicament delivery device comprising a medicament cartridge retainer for holding a medicament cartridge, an attachment for attachment thereto of a dispense interface, the dispense interface for providing an exit pathway for the medicament contained in the cartridge, an interface sensor configured to provide an output indicative of whether the dispense interface is attached to the attachment, a piston rod for driving a bung of the medicament cartridge, a drive train for advancing the piston rod to the bung, and a controller configured to control operation of the device, wherein the controller is operative to sense stalling of the drive train, the method comprising:
- sensing the output of the interface sensor;
determining whether the sensed output indicates whether the dispense interface is or is not at least partially attached to the attachment;
advancing the piston rod when the sensed output indicates that the dispense interface is not attached;
stopping or disabling advancement of the piston rod when the output of the interface sensor indicates that the dispense interface is at least partially attached; and
stopping the drive train when stalling of the drive train is sensed. - View Dependent Claims (30)
- sensing the output of the interface sensor;
Specification