摘要:
A medicament delivery device is presented for the administration of one or more drug agents, wherein the device comprises a retainer for holding a medicament cartridge. The retainer is moveable between an open and closed position. A position sensor for generating a position output is indicative of whether the retainer is in the open or closed position. Further, a cartridge sensor generates a cartridge output indicative of whether the retainer is holding a medicament cartridge. A controller controls a predetermined operation of the device in dependence on the output of the position sensor and on the output of the cartridge sensor.
摘要:
Described is a needle assembly reuse prevention mechanism comprising a barrier movable between a retracted position and an extended position, a spring coupled to the barrier, a pin formed on the barrier, and a slot receiving the pin. When in the extended position, the barrier substantially covers an opening of a needle assembly storage compartment. The spring forces the barrier in a first direction. The slot has at least one abutment face for abutting the pin and preventing movement of the barrier in the first direction.
摘要:
Described is a needle assembly reuse prevention mechanism comprising a barrier movable between a retracted position and an extended position, a spring coupled to the barrier, a pin formed on the barrier, and a slot receiving the pin. When in the extended position, the barrier substantially covers an opening of a needle assembly storage compartment. The spring forces the barrier in a first direction. The slot has at least one abutment face for abutting the pin and preventing movement of the barrier in the first direction.
摘要:
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.
摘要:
A drive mechanism for an injection device is disclosed in which piston means are selectively driven to expel medicament from within a medicament cartridge. The drive mechanism comprises a drive means (270), first means (278) associated with the drive means, second gear means (274) being moveable between a first position in wich only movement along its longitudinal axis is permitted and a second position in which the second gear means (274) is free to rotate about the longitudinal axis, the piston means (280) being associated with the second gear means (274), a housing (276) within which the first gear means (278) and the second gear means (274) are constrained for movement, and biassing means (282) located between the housing (276) and a second gear means (274) to bias the second gear means (274) to the first position.
摘要:
An injection device (2) having a drive mechanism (42) to expel selectively a dose of medicament from a medicament cartridge (40) through a needle arrangement is disclosed. The injection device (2) also comprises a processor to control the drive mechanism (42), a dispense button (18) to generate a signal to the processor to cause the medicament to be expelled and a priming detector to detect a predetermined orientation of the injection device. When the predetermined orientation is detected the processor will only actuate the drive mechanism (42) to expel a small amount of medicament.
摘要:
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.
摘要:
An injection device having a drive mechanism to expel selectively a dose of medicament from a medicament cartridge through a needle unit is disclosed. The injection device further comprises an electronic control unit to control the drive mechanism, and a dispense button to generate a dispense button signal to the electronic control unit indicative of the dose to be expelled in which an arm button causes a first arm button signal to be sent to the electronic control unit to permit the dose to be expelled.
摘要:
A medicament injection device in which the time elapsed is calculated from the end of a predetermined period during which medicament is permitted to disperse subsequent to completion of an injection stroke. The medicament injection device is particularly suitable for use by those with diabetes in which once a desired dosage of medicament has been selected and expelled from the medicament cartridge into the body of the patient, the injected medicament is allowed to disperse locally from the injection site within the patient's body before the needle arrangement is removed from the patient's body.
摘要:
A drive mechanism for an injection device is disclosed in which piston means are selectively driven to expel medicament from within a medicament cartridge. The drive mechanism comprises a drive means associated with a first ratchet member, a second ratchet member associated with the piston means, a housing, the first ratchet member and the second ratchet member being disposed within the housing. The second ratchet member being biased by biasing means toward the first ratchet member. The drive means is actuable reciprocally to drive the first ratchet member in a first angular direction such that the first ratchet member drives the second ratchet member along its longitudinal axis against the biasing means along at least a part of its movement and subsequently drives the first ratchet member and the second ratchet member together in a second angular direction thereby to drive the piston means.