Obesity therapy and heart rate variability
First Claim
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1. A medical system, comprising:
- a sensor configured to be positioned in contact with a tissue of a patient, the sensor being configured to sense a heart rate of the patient;
a processor configured to be in communication with the sensor and to analyze the sensed heart rate to detect a change in heart rate of the patient by analyzing electrocardiogram (ECG) signals sensed by the sensor, the analyzing comprising analyzing a power spectral density in low frequency and high frequency bands such that the processor determines onset of the patient eating a solid food; and
a delivery device configured to be implanted within the patient and to be in communication with the processor, the delivery device being defaulted to a dormant mode in which the delivery device does not deliver an obesity therapy to the patient, and the delivery device being configured to change from the dormant mode to a delivery mode, in which the delivery device delivers the obesity therapy to the patient, in response to the processor detecting the change in heart rate and determining the onset of the patient eating the solid food.
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Abstract
Methods and devices are provided for delivering obesity therapy to a patient. In general, the methods and devices allow for onset of a patient eating solid food, e.g., the patient beginning a meal, to trigger delivery of an obesity therapy to a patient. The obesity therapy can be delivered to the patient for a limited period of time such that the patient stops receiving the obesity therapy prior to a second onset of the patient eating solid food, e.g., the patient beginning a second meal, which can trigger a second delivery of the obesity therapy to the patient for a limited period of time.
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Citations
21 Claims
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1. A medical system, comprising:
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a sensor configured to be positioned in contact with a tissue of a patient, the sensor being configured to sense a heart rate of the patient; a processor configured to be in communication with the sensor and to analyze the sensed heart rate to detect a change in heart rate of the patient by analyzing electrocardiogram (ECG) signals sensed by the sensor, the analyzing comprising analyzing a power spectral density in low frequency and high frequency bands such that the processor determines onset of the patient eating a solid food; and a delivery device configured to be implanted within the patient and to be in communication with the processor, the delivery device being defaulted to a dormant mode in which the delivery device does not deliver an obesity therapy to the patient, and the delivery device being configured to change from the dormant mode to a delivery mode, in which the delivery device delivers the obesity therapy to the patient, in response to the processor detecting the change in heart rate and determining the onset of the patient eating the solid food. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical method, comprising:
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positioning a sensing device in contact with tissue of a patient; positioning a delivery device in contact with tissue of the patient, the delivery device including an obesity therapy and being in a default off configuration in which the delivery device does not deliver the obesity therapy to the patient; detecting a change in heart rate of a patient using heart rate data gathered by the sensing device by analyzing a power spectral density in low frequency and high frequency bands of the heart rate data to determine onset of the patient eating a solid food; and in response to the determined onset of the patient eating the solid food and the detected change in heart rate, changing the delivery device from the default off configuration to an on configuration in which the delivery device delivers the obesity therapy to the patient. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification