Logging device for 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,a display adapted to display a determined dose amount and/or a time value, and a warning message, anda switch adapted to be operated 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,the sensor is turned off when the switch is operated from the on-state to the off-state when the detachable cap is remounted,the sensor is turned off automatically when a predetermined amount of time has lapsed, andthe display is turned on to display the warning message when the switch is operated from the on-state to the off-state and when the sensor has been turned off automatically, the warning message indicating to the user that the expelled dose may not have been captured.
1 Assignment
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Accused Products
Abstract
An add-on logging device (100, 300) mounted to a drug delivery device is turned on when the cap is removed. After a given amount of time in inactivity the sensor means of the add-on device is turned off automatically to save energy. If the user takes a dose of drug this is not detected as the add-on device is only turned on when the cap is removed. According to the present invention a warning message is provided when the cap is re-mounted after the sensor means has been turned off automatically, the warning message indicating to a user that an expelled dose may not have been detected.
21 Citations
14 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, a display adapted to display a determined dose amount and/or a time value, and a warning message, and a switch adapted to be operated 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, the sensor is turned off when the switch is operated from the on-state to the off-state when the detachable cap is remounted, the sensor is turned off automatically when a predetermined amount of time has lapsed, and the display is turned on to display the warning message when the switch is operated from the on-state to the off-state and when the sensor has been turned off automatically, the warning message indicating to the user that the expelled dose may not have been captured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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 warning message, 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, the sensor is turned off when the switch is operated from the on-state to the off-state, the sensor is turned off automatically when a predetermined amount of time has lapsed, and the display is turned on to display the warning message when the switch is operated from the on-state to the off-state and when the sensor has been turned off automatically, the warning message indicating to the user that the expelled dose may not have been captured. - View Dependent Claims (11, 12, 13, 14)
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Specification