Unobtrusive measurement system for bioelectric signals
First Claim
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1. A sensor system for measuring biopotentials of an individual comprising:
- an object against which an individual, who produces a bioelectric field to be measured, is adapted to be supported; and
a plurality of electrical sensors integrated into the object, at least one of the plurality of electrical sensors being constituted by a capacitive-type electrical sensor having an associated layer of biocompatible non-conductive material preventing the conduction of direct current, wherein the bioelectric field with a total input capacitance of less than approximately 50 pF can be unobtrusively measured.
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Abstract
A system for unobtrusively measuring bioelectric signals developed by an individual includes multiple sensors, one or more of which constitutes a capacitive sensor, embedded into or otherwise integrated into an object, such as a chair, bed or the like, used to support the individual. The object serves as mounting structure that holds the sensors in place. The sensors are preferably arranged in the form of an array, with particular ones of the sensors being selectable from the array for measuring the bioelectric signals which are transmitted, such as through a wireless link, for display and/or analysis purposes.
231 Citations
20 Claims
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1. A sensor system for measuring biopotentials of an individual comprising:
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an object against which an individual, who produces a bioelectric field to be measured, is adapted to be supported; and a plurality of electrical sensors integrated into the object, at least one of the plurality of electrical sensors being constituted by a capacitive-type electrical sensor having an associated layer of biocompatible non-conductive material preventing the conduction of direct current, wherein the bioelectric field with a total input capacitance of less than approximately 50 pF can be unobtrusively measured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of sensing bioelectric signals from an individual producing a bioelectric field comprising:
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supporting a body portion of the individual against an object having a plurality of electrical sensors integrated therein, with at least one of the plurality of electrical sensors being constituted by a capacitive-type sensor; preventing conduction of direct current between the individual and the capacitive-type sensor by placing an associated layer of biocompatible non-conductive material between the individual and the capacitive-type sensor; measuring bioelectric signals, including bioelectric signals with a total input capacitance of less than approximately 50 pF, with the plurality of electrical sensors; and transmitting the bioelectric signals associated with the bioelectric field to a remote location for analysis. - View Dependent Claims (17, 18, 19, 20)
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Specification