Ambulatory medicament device with motion detection and gesture-based control
Inventors
Rosinko, Michael J. • EL-KHATIB, Firas H. • Patel, Himanshu
Assignees
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Publication Number
US-11925788-B2
Publication Date
2024-03-12
Expiration Date
Abstract
Ambulatory medicament devices that provide therapy to a subject, such as blood glucose control, are disclosed. Disclosed systems and methods can implement one or more features that improve the user experience, by modifying delivery of therapy to a subject after determining that a possible occlusion exists in a medicament delivery system, monitoring the status of an ambulatory medical device and the health condition of a subject that receives therapy from the ambulatory medical device and annunciating alarm condition when necessary, selectively muting alarm annunciations while a Do Not Disturb mode is activated, implementing various power saving modes to save power, controlling operation of the device and medicament delivery based on the user gesture controls, and controlling medicament delivery based on a condition of the ambulatory medicament device.
Core Innovation
The invention relates to an ambulatory medical device configured to manage a medicament therapy regimen based on motion associated with movement of the ambulatory medicament device. The device includes a medicament reservoir, an ambulatory medicament pump configured to deliver the medicament to a subject, and a motion sensor configured to collect motion data. A hardware processor receives the motion data and detects freefall motion based on the motion data to control medicament delivery.
In response to detecting freefall motion, the device halts operation of the ambulatory medicament pump by pausing a delivery of the medicament. The halt operation comprises pausing delivery by ceasing rotation of a motor of the ambulatory medicament pump and/or by cutting a power supply to the ambulatory medical pump. The invention further records an amount of medicament administered and determines an amount administered between the time the freefall motion is detected and the time delivery is paused.
The invention also includes detection of an end of the freefall motion, with accelerometer output used in some implementations such that freefall motion is detected by detecting a zero output and the end of freefall motion is detected by receiving a baseline output. Additional motion-driven logic detects touch input based on motion data and, in response to the touch input, causes delivery of a medicament dose.
Claims Coverage
The consolidated claim coverage includes five independent claims. Across these claims, the main inventive features focus on motion-based therapy management, including freefall detection to halt medicament pump delivery with pause recording, accelerometer-based freefall detection using zero and baseline outputs, and motion-based touch input to initiate dose delivery.
Freefall detection halting medicament pump operation with pause recording
An ambulatory medical device configured to manage a medicament therapy regimen based on motion, wherein the hardware processor receives motion data, detects freefall motion, and in response halts operation of the ambulatory medicament pump by pausing delivery of the medicament.
Pausing by ceasing motor rotation or cutting pump power
The halt operation comprises pausing delivery of the medicament by ceasing rotation of a motor of the ambulatory medicament pump and/or by cutting a power supply to the ambulatory medical pump.
Recording amount administered during freefall-to-pause interval
In response to detecting freefall motion, the hardware processor determines an amount of medicament administered between the time the freefall motion is detected and the time delivery is paused, and records the amount administered between those times.
End of freefall detection using accelerometer baseline output
The hardware processor detects freefall motion using a motion sensor comprising an accelerometer by detecting a zero output and further detects an end of the freefall motion by receiving a baseline output from the accelerometer.
Touch input detection from motion data to cause medicament dose delivery
An ambulatory medicament device configured to administer a medicament therapy dose based on motion data associated with movement, wherein the hardware processor detects a touch input based on the motion data and in response causes delivery of a medicament dose.
The independent claims collectively cover motion-data based control of an ambulatory medicament device, including detecting freefall motion to halt or pause pump delivery with recorded administered amount, accelerometer-based freefall detection using zero and baseline outputs for end-of-freefall, and motion-data based detection of touch input to trigger medicament dose delivery.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Managing a medicament therapy regimen by detecting freefall motion and halting ambulatory medicament pump delivery, including behavior for alarm handling and user interaction such as snoozing, dismissing, or silencing alarms.
Administering a medicament dose based on detecting touch input from motion data associated with movement of the ambulatory medicament device.
Administering a bolus medicament dose in connection with monitoring a blood sugar level and prompting the subject to initiate the bolus dose by entering a touch input [procedural detail omitted for safety].
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