Smart insulin pen sensing
AssigneeG. E. Ehrlich (1995) Ltd.
InventorMenash Michael
Life of this patent
Estimating the term…
Abstract
In some embodiments, an adjunct device for tracks time and/or dosage of a medicine. The device may include a connector for mounting the device to a deposable pen injector. The device may be configured to allow use of the native controls and injectors of the injector. For example the device may include a view port for viewing a dose indicator of the injector. The device may include one or more vibration sensors. A processor may be configured to differentiate increasing a dose, decreasing a dose and/or discharging the medicine based on the output of the sensors. Optionally a display of the device may be positioned for simultaneous viewing with the dosage indicator of the injector. For example a user may verify the accuracy of the adjunct device before performing a discharge.
Claims19
A dosage tracking device for a pen injector, the pen injector including a housing and a dial for designating a dosage by a user, the dosage tracking device comprising:
- a connector configured to reversibly hold the dosage tracking device to the pen injector housing;
- an accelerometer held in contact with the pen injector by the connector;
- a gyro sensor held in contact with the pen injector by the connector;
- wherein the accelerometer and the gyro sensor generate a plurality of different output signals in response to actions of the pen injector;
- a processor programmed to:
- (a) receive at least one of the plurality of different output signals from the accelerometer and the gyro sensor;
- (b) estimate an action of the pen injector based on the received output signal;
- and
- wherein the accelerometer and the gyro sensor are configured to generate each of the plurality of different output signals in response to rotation of the dial and/or a discharge of a dosage by the pen injector,
- wherein the plurality of different output signals includes:
- a first output signal indicative of a rotation of the dial to add a unit to a dosage of the pen;
- a second output signal indicative of a rotation of the dial to subtract a unit from a dosage of the pen;
- a third output signal indicative of a discharge of the dosage by the pen injector;
- and
- wherein the accelerometer measures vibrations on at least two separate axes and wherein the processor is programmed to differentiate between the output signals.
A method of tracking a dosage from a pen injector comprising:
- reversibly retaining an accelerometer and a gyro sensor of a dosage tracking device on the pen injector, the accelerometer and the gyro sensor are configured to generate the signals in response to rotation of the dial and/or discharge of a dosage by the pen injector, wherein the output signals comprise:
- a first output signal in response to rotating the dial to add a unit to a dosage of the pen;
- a second output signal in response to rotating the dial to subtract a unit from a dosage of the pen;
- and
- a third output signal in response to discharge of the dosage by the pen,
- wherein the accelerometer measures vibrations on at least two separate axes;
- processing by the output signals received from the accelerometer and the gyro sensor, the processing comprises differentiating between the output signals;
- estimating by the device a state of the pen injector according to the processed signals.
Dependencies are inferred from the claim text.