Logging device operated by drug delivery device
First Claim
1. A logging device releasably attached to a drug delivery device, the drug delivery device comprising a drug reservoir or a structure for receiving the drug reservoir, the drug reservoir comprising an outlet portion, a detachable cap adapted to cover the drug reservoir outlet portion in a mounted position, and a drug expeller comprising a dose setter allowing a user to set a dose amount of a drug to be expelled, the logging device comprising:
- electronic circuitry comprising;
a sensor adapted to capture a property value related to the dose amount of the drug expelled from the drug reservoir by the drug expeller during an expelling event when the logging device has been attached to the drug delivery device,a processor adapted to determine dose amounts based on the captured property values,a memory adapted to store at least one dose amount and associated time value,a display adapted to display a determined dose amount and/or a time value, anda switch operable by the detachable cap, when the logging device has been attached to the drug delivery device, between an off-state when the detachable cap is in the mounted position and an on-state when the detachable cap has been detached,wherein;
the sensor is turned on when the switch is operated from the off-state to the on-state when the detachable cap is removed, andthe display is turned on for a predetermined amount of time to display a dose amount and/or a time value when the switch is operated from the on-state to the off-statewherein the sensor is turned off when the switch is operated from the on-state to the off-state when the detachable cap is remounted to reduce power consumption of the lopping device.
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Accused Products
Abstract
An add-on dose logging device for a pen device consumes energy when the sensors are operated and when the display is active. By using cap-off event to activate the sensor system only, and using cap-on event to de-activate the sensor system and activate the display for a given time to display a sensed dose, power consumption can be reduced without changing the user-interface and without adding any components apart from a switch.
21 Citations
10 Claims
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1. A logging device releasably attached to a drug delivery device, the drug delivery device comprising a drug reservoir or a structure for receiving the drug reservoir, the drug reservoir comprising an outlet portion, a detachable cap adapted to cover the drug reservoir outlet portion in a mounted position, and a drug expeller comprising a dose setter allowing a user to set a dose amount of a drug to be expelled, the logging device comprising:
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electronic circuitry comprising; a sensor adapted to capture a property value related to the dose amount of the drug expelled from the drug reservoir by the drug expeller during an expelling event when the logging device has been attached to the drug delivery device, a processor adapted to determine dose amounts based on the captured property values, a memory adapted to store at least one dose amount and associated time value, a display adapted to display a determined dose amount and/or a time value, and a switch operable by the detachable cap, when the logging device has been attached to the drug delivery device, between an off-state when the detachable cap is in the mounted position and an on-state when the detachable cap has been detached, wherein; the sensor is turned on when the switch is operated from the off-state to the on-state when the detachable cap is removed, and the display is turned on for a predetermined amount of time to display a dose amount and/or a time value when the switch is operated from the on-state to the off-state wherein the sensor is turned off when the switch is operated from the on-state to the off-state when the detachable cap is remounted to reduce power consumption of the lopping device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A drug delivery system, comprising:
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a drug reservoir or a structure for receiving the drug reservoir, the drug reservoir comprising an outlet portion; a detachable cap adapted to cover the drug reservoir outlet portion in a mounted position; a drug expeller comprising a dose setter allowing a user to set a dose amount of a drug to be expelled; and electronic circuitry comprising; a sensor adapted to capture a property value related to the dose amount of the drug expelled from the drug reservoir by the drug expeller during an expelling event, a processor adapted to determine dose amounts based on the captured property values, a memory adapted to store at least one dose amount, a display adapted to display a determined dose amount and/or a time value, and a switch operable by the detachable cap between an off-state when the detachable cap is in the mounted position and an on-state when the detachable cap has been detached from the drug delivery system, wherein; the sensor is turned on when the switch is operated from the off-state to the on-state when the detachable cap is removed, and the display is turned on for a predetermined amount of time to display a dose amount and/or a time value when the switch is operated from the on-state to the off-state wherein the sensor is turned off when the switch is operated from the on-state to the off-state when the detachable cap is remounted to reduce power consumption of the lopping device. - View Dependent Claims (9, 10)
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Specification