MEDICAL INJECTION DEVICE WITH TIME DELAY INDICATOR
First Claim
1. A medical injection device for introducing a drug into the body of a subject user, the injection device comprising:
- a delivery mechanism including an actuator for the dispensing of drug responsive to activation of the actuator, anda time delay indicator adapted to change from a first visual state prior to activation of the actuator to a second visual state responsive to activation of the actuator, and to change to a third visual state after lapse of a pre-defined time interval subsequent to activation of the actuator,wherein the time delay indicator comprises a mechanical time delay device which is started responsive to activation of the actuator and which operates until lapse of said pre-defined time interval, the visual state of the time delay indicator being controlled by the mechanical time delay device.
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Abstract
The present invention relates to an indicating device for use with medical injection devices for administering a drug into the body of a subject user wherein the indicating device is configured for indicating after administration that a dose of the drug actually has been administered and for maintaining this indication until lapse of a pre-defined time interval. The time delay indicator disclosed is based on a mechanical time delay device and includes a visual indicator that is controlled by the mechanical time delay device for signalling the status of the device during lapse of the pre-defined time interval.
52 Citations
15 Claims
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1. A medical injection device for introducing a drug into the body of a subject user, the injection device comprising:
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a delivery mechanism including an actuator for the dispensing of drug responsive to activation of the actuator, and a time delay indicator adapted to change from a first visual state prior to activation of the actuator to a second visual state responsive to activation of the actuator, and to change to a third visual state after lapse of a pre-defined time interval subsequent to activation of the actuator, wherein the time delay indicator comprises a mechanical time delay device which is started responsive to activation of the actuator and which operates until lapse of said pre-defined time interval, the visual state of the time delay indicator being controlled by the mechanical time delay device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Use of a time delay indicator in a medical injection device, the injection device comprising a delivery mechanism including an actuator for the dispensing of drug responsive to activation of the actuator, wherein the time delay indicator is adapted to couple to the actuator of the medical injection device, wherein the time delay indicator is adapted to change from a first visual state prior to activation of the actuator to a second visual state responsive to activation of the actuator, and to change to a third visual state after lapse of a pre-defined time interval subsequent to activation of the actuator, and wherein the time delay indicator comprises a mechanical time delay device which is started responsive to activation of the actuator and which operates until lapse of said pre-defined time interval, the visual state of the time delay indicator being controlled by the mechanical time delay device.
Specification