Analysis of eating habits
First Claim
Patent Images
1. A gastric apparatus, comprising:
- a set of one or more implantable antral electrodes, configured to be coupled to an antral site of an antrum of a subject and to generate an antral electrode signal responsive to a property of the antrum; and
a control unit, configured to;
receive and analyze the antral electrode signal,determine a time delay between an onset of eating by the subject and a change in electrical activity in the antrum, the change in electrical activity determined responsive to the antral electrode signal, andresponsively to the delay, determine whether food ingested by the subject is predominantly solid or liquid.
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Accused Products
Abstract
Diet evaluation gastric apparatus (18) is provided, which detects when a patient (10) swallows, and detects the type and amount of matter ingested. The apparatus includes electrodes (74, 100) adapted to be coupled to the fundus and antrum of the patient and to measure electrical and mechanical activity therein, and a control unit (90) to analyze such electrical and mechanical activity and optionally apply electrical energy to modify the activity of tissue of the patient.
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Citations
67 Claims
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1. A gastric apparatus, comprising:
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a set of one or more implantable antral electrodes, configured to be coupled to an antral site of an antrum of a subject and to generate an antral electrode signal responsive to a property of the antrum; and a control unit, configured to; receive and analyze the antral electrode signal, determine a time delay between an onset of eating by the subject and a change in electrical activity in the antrum, the change in electrical activity determined responsive to the antral electrode signal, and responsively to the delay, determine whether food ingested by the subject is predominantly solid or liquid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A gastric apparatus, comprising:
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a gastric sensor, configured to be coupled to a gastric site of a subject and to generate a gastric sensor signal responsive to a property of the gastric site and a control unit, configured to receive and analyze the gastric sensor signal, and to determine, responsive thereto, a characteristic of a food ingested by the subject, the characteristic selected from the group consisting of;
whether the food is predominantly solid or liquid, and a caloric content of the food,wherein the gastric sensor comprises a set of one or more fundic electrodes, configured to generate a fundic electrode signal responsive to a property of the fundus, and wherein the control unit is configured to receive and analyze the fundic electrode signal, and to determine, responsive thereto, the characteristic of the ingested food, and wherein the fundic electrode set is configured to generate the fundic electrode signal responsive to an electrical potential change generated responsive to a contraction of a muscle of the fundus. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A method comprising:
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coupling a gastric sensor to a gastric site of the subject, and sensing a property of the gastric site using the gastric sensor; analyzing the property of the gastric site; and determining, responsive to the analysis, a characteristic of a food ingested by the subject, the characteristic selected from the group consisting of;
whether the food is predominantly solid or liquid, and a caloric content of the food,wherein the gastric site includes an antral site, and wherein sensing the property comprises sensing a property of an antrum of a stomach. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method comprising:
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coupling a gastric sensor to a gastric site of the subject, and sensing a property of the gastric site using the gastric sensor; analyzing the property of the gastric site and determining, responsive to the analysis, a characteristic of a food ingested by the subject, the characteristic selected from the group consisting of;
whether the food is predominantly solid or liquid, and a caloric content of the food,wherein the gastric site includes a fundic site, and wherein sensing the property comprises sensing a property of a fundus of a stomach. - View Dependent Claims (44, 45, 46)
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47. A gastric apparatus, comprising:
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a gastric sensor, configured to be coupled to a gastric site of a subject and to generate a gastric sensor signal responsive to a property of the gastric site; and a control unit, configured to receive and analyze the gastric sensor signal, and to determine, responsive thereto, a caloric content of the food. - View Dependent Claims (48)
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49. A gastric apparatus, comprising:
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a gastric sensor, configured to be coupled to a gastric site of a subject and to generate a gastric sensor signal responsive to a property of the gastric site a set of one or more current-application electrodes, configured to be coupled to a tissue of a stomach of the subject; and a control unit, configured to; receive and analyze the gastric sensor signal, determine, responsive thereto, a characteristic of a food ingested by the subject, the characteristic selected from the group consisting of;
whether the food is predominantly solid or liquid, and a caloric content of the food,responsive to the analysis, drive a current through the set of current-application electrodes into the tissue, and configure the current to induce a feeling of satiation by performing an action selected from the group consisting of;
configuring the current to induce contraction of stomach muscles, and configuring the current to enhance mobility of chyme in the stomach. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A method comprising:
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coupling a gastric sensor to a gastric site of the subject, and sensing a property of the gastric site using the gastric sensor; analyzing the property of the gastric site and determining, responsive to the analysis, a caloric content of the food. - View Dependent Claims (63)
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64. A method comprising:
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coupling a gastric sensor to a gastric site of the subject, and sensing a property of the gastric site using the gastric sensor; analyzing the property of the gastric site; determining, responsive to the analysis, a characteristic of a food ingested by the subject, the characteristic selected from the group consisting of;
whether the food is predominantly solid or liquid, and a caloric content of the food;driving a current into tissue of a stomach of the subject responsive to the analysis; and configuring the current to induce a feeling of satiation, by performing an action selected from the group consisting of;
configuring the current to induce contraction of stomach muscles, and configuring the current to enhance mobility of chyme in the stomach. - View Dependent Claims (65, 66, 67)
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Specification