Patent ID: 7397730

Claim:
An injection device for injecting a medication, the device comprising: a needle, a doser that comprises a reservoir of medication, and a cap that covers a portion of the doser, wherein the cap comprises: a mechanism operable between a first condition and a second condition, a clock device for storing a first time stamp, a second time stamp, and a first time-period value, a controller for setting a first time stamp in response to the mechanism being operated between the first condition and the second condition, setting a second time stamp in response to the mechanism being operated between the second condition and the first condition, calculating the time elapsed between the first and second time stamps, comparing the elapsed time with the first time-period value, and performing a first control action if the elapsed time is greater than the first time-period value; and the clock device being adapted for being reset in response to the control action, and a display for indicating the time lapsed since reset of the clock device.