Administration device having patient state monitor
First Claim
1. An administration device for administration of a liquid drug over an extended time period to a patient, comprising:
- an administration unit;
a housing that houses the administration unit, the housing being adapted to be carried by the patient over the extended time period;
a controller unit adapted to control operation of the administration unit, the controller unit further adapted to receive an alarm triggering signal;
an alarming unit that is coupled to the controller unit, the alarming unit adapted to generate an alarm signal on reception of the alarm triggering signal by the controller unit; and
a patient state monitor that includes a motion-sensitive sensor unit, the motion-sensitive sensor unit being reactive on patient motion, the patient state monitor being adapted to process a sensor signal (SS) generated by the motion-sensitive sensor unit, and a counter unit adapted to generate the alarm triggering signal and to transmit the alarm triggering signal to the controller unit if processing of the sensor signal (SS) indicates a patient motion level is below a predefined motion level, the predefined motion level being defined by a length of time-periods without patient motion that can be expected for a conscious human.
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Accused Products
Abstract
Embodiments disclosed herein include systems and methods for administering a drug over a time period. One embodiment of a system includes an administration unit, a housing that houses the administration unit, and a controller unit adapted to receive an alarm triggering signal. Also included in some embodiments is an alarming unit that is adapted to generate an alarm signal on reception of the alarm triggering signal. Some embodiments include a patient state monitor that includes a motion-sensitive sensor unit that is reactive on patient motion. The patient state monitor may be adapted to process a sensor signal generated by the motion-sensitive sensor unit. The patient state monitor may also be adapted to transmit the alarm triggering signal to the controller unit if a patient motion level is below a predefined motion level, as determined by a length of time without patient motion.
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Citations
15 Claims
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1. An administration device for administration of a liquid drug over an extended time period to a patient, comprising:
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an administration unit; a housing that houses the administration unit, the housing being adapted to be carried by the patient over the extended time period; a controller unit adapted to control operation of the administration unit, the controller unit further adapted to receive an alarm triggering signal; an alarming unit that is coupled to the controller unit, the alarming unit adapted to generate an alarm signal on reception of the alarm triggering signal by the controller unit; and a patient state monitor that includes a motion-sensitive sensor unit, the motion-sensitive sensor unit being reactive on patient motion, the patient state monitor being adapted to process a sensor signal (SS) generated by the motion-sensitive sensor unit, and a counter unit adapted to generate the alarm triggering signal and to transmit the alarm triggering signal to the controller unit if processing of the sensor signal (SS) indicates a patient motion level is below a predefined motion level, the predefined motion level being defined by a length of time-periods without patient motion that can be expected for a conscious human. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An administration device for administration of a liquid drug over an extended time period to a patient, comprising:
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an administration unit; a housing that houses the administration unit, the housing being adapted to be carried by the patient over the extended time period; a controller unit adapted to control operation of the administration unit, the controller unit further adapted to receive an alarm triggering signal; an alarming unit that is coupled to the controller unit, the alarming unit adapted to generate an alarm signal on reception of the alarm triggering signal by the controller unit; and a patient state monitor that includes an energy storage, a motion-sensitive sensor unit being reactive on patient motion and switchably connected to the energy storage, a voltage threshold detector operably coupled to the energy storage and a counter unit, wherein the patient state monitor being adapted to process a binary output of the voltage threshold detector to the counter unit, such that the counter unit is adapted to count a number (N) of consecutive monitoring intervals without substantial patient motion, compare the number (N) of consecutive monitoring intervals without substantial patient motion with a threshold number (TN), and if a capacitor voltage is below a threshold voltage the counter unit is reset to zero, otherwise the number (N) of consecutive monitoring intervals without substantial patient motion is incremented by one. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification