Meal detection devices and methods
First Claim
1. A meal detection system, comprising:
- an impedance sensor configured to measure impedance across one or more portions of a user;
an accelerometer configured to sense movement of one or more portions of the user; and
a processor in communication with the impedance sensor and the accelerometer and configured to analyze outputs of the impedance sensor and the accelerometer to detect meal intake by the user, the processor being further configured to trigger a controlled device to deliver a therapy to the user in response to meal intake detected by the processor and to calculate an impedance sensor index, an impedance sensor threshold value, an accelerometer index, and an accelerometer threshold value.
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Accused Products
Abstract
Devices and methods for detecting meal intake are disclosed herein. In some embodiments, one or more sensors can be used to detect or monitor physiological parameters of a user (e.g., heart rate, body movements, temperature, pH, impedance, gastric stretch, sound emissions, and the like). The outputs of the sensors can be received by a computer system configured to analyze the sensor data and make a determination as to whether meal intake has occurred or is presently occurring. The computer system'"'"'s determination can be used to trigger, modulate, or otherwise control one or more therapeutic devices. Other types of devices can also be controlled using this determination, such as monitoring or logging devices.
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Citations
20 Claims
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1. A meal detection system, comprising:
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an impedance sensor configured to measure impedance across one or more portions of a user; an accelerometer configured to sense movement of one or more portions of the user; and a processor in communication with the impedance sensor and the accelerometer and configured to analyze outputs of the impedance sensor and the accelerometer to detect meal intake by the user, the processor being further configured to trigger a controlled device to deliver a therapy to the user in response to meal intake detected by the processor and to calculate an impedance sensor index, an impedance sensor threshold value, an accelerometer index, and an accelerometer threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15)
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12. A meal detection system, comprising:
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an impedance sensor configured to measure impedance across one or more portions of a user; an accelerometer configured to sense movement of one or more portions of the user; and a processor in communication with the impedance sensor and the accelerometer and configured to analyze outputs of the impedance sensor and the accelerometer to detect meal intake by the user, the processor being further configured to trigger a controlled device to deliver a therapy to the user in response to meal intake detected by the processor and to calculate an accelerometer index based on the total energy of the accelerometer output in a frequency band of interest. - View Dependent Claims (13, 14, 16)
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17. A meal detection system, comprising:
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an impedance sensor configured to measure impedance across one or more portions of a user; an accelerometer configured to sense movement of one or more portions of the user; and a processor in communication with the impedance sensor and the accelerometer and configured to analyze outputs of the impedance sensor and the accelerometer to detect meal intake by the user, the processor being further configured to trigger a controlled device to deliver a therapy to the user in response to meal intake detected by the processor and to calculate an impedance sensor index based on the median energy of the impedance sensor output in a frequency band of interest. - View Dependent Claims (18, 19, 20)
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Specification