Combined physiological sensor systems and methods
First Claim
1. A physiological sensor device, comprising:
- a flexible structure capable of being applied to a subject;
a first electrode disposed on the structure for receiving a first electrical signal associated with the subject, wherein the first electrode is disposed on the structure at a location such that when the structure is applied to the subject, the first electrode is positioned over the horizontal center of the forehead of the subject;
a second electrode disposed on the structure for receiving a second electrical signal associated with the subject, wherein the second electrode is disposed on the structure at a location such that when the structure is applied to the subject, the second electrode is positioned on a side of the forehead of the subject;
a third electrode disposed on the structure for receiving a third electrical signal associated with the subject, wherein the third electrode is disposed on the structure at a location such that when the structure is applied to the subject, the third electrode is positioned on the side of the forehead of the subject at a position further away from the horizontal center of the forehead than the position of the second electrode;
a fourth electrode disposed on the structure for receiving a fourth electrical signal associated with the subject, wherein the fourth electrode is disposed on the structure at a location such that when the structure is applied to the subject, the fourth electrode is positioned over a temple of the subject on the same side of the subject'"'"'s head with respect to the horizontal center as the second electrode and the third electrode; and
an optical detector disposed on the structure at a location between the second electrode and the third electrode for receiving an optical signal transmitted into the subject.
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Accused Products
Abstract
A combined physiological sensor and methods for detecting one or more physiological characteristics of a subject are provided. The combined sensor (e.g., a forehead sensor) may be used to detect and/or calculate at least one of a pulse blood oxygen saturation level, a regional blood oxygen saturation level, a respiration rate, blood pressure, an electrical physiological signal (EPS), a pulse transit time (PTT), body temperature associated with the subject, a depth of consciousness (DOC) measurement, any other suitable physiological parameter, and any suitable combination thereof. The combined sensor may include a variety of individual sensors, such as electrodes, optical detectors, optical emitters, temperature sensors, and/or other suitable sensors. The sensors may be advantageously positioned in accordance with a number of different geometries. The combined sensor may also be coupled to a monitoring device, which may receive and/or process one or more output signals from the individual sensors to display information about the medical condition of the subject. In addition, several techniques may be employed to prevent or limit interference between the individual sensors and their associated input and/or output signals.
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Citations
10 Claims
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1. A physiological sensor device, comprising:
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a flexible structure capable of being applied to a subject; a first electrode disposed on the structure for receiving a first electrical signal associated with the subject, wherein the first electrode is disposed on the structure at a location such that when the structure is applied to the subject, the first electrode is positioned over the horizontal center of the forehead of the subject; a second electrode disposed on the structure for receiving a second electrical signal associated with the subject, wherein the second electrode is disposed on the structure at a location such that when the structure is applied to the subject, the second electrode is positioned on a side of the forehead of the subject; a third electrode disposed on the structure for receiving a third electrical signal associated with the subject, wherein the third electrode is disposed on the structure at a location such that when the structure is applied to the subject, the third electrode is positioned on the side of the forehead of the subject at a position further away from the horizontal center of the forehead than the position of the second electrode; a fourth electrode disposed on the structure for receiving a fourth electrical signal associated with the subject, wherein the fourth electrode is disposed on the structure at a location such that when the structure is applied to the subject, the fourth electrode is positioned over a temple of the subject on the same side of the subject'"'"'s head with respect to the horizontal center as the second electrode and the third electrode; and an optical detector disposed on the structure at a location between the second electrode and the third electrode for receiving an optical signal transmitted into the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A physiological sensor device, comprising:
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a flexible structure capable of being applied to a subject; a first electrode disposed on the structure for receiving a first electrical signal associated with the subject, wherein the first electrode is disposed on the structure at a location such that when the structure is applied to the subject, the first electrode is positioned over the horizontal center of the forehead of the subject; a second electrode disposed on the structure for receiving a second electrical signal associated with the subject, wherein the second electrode is disposed on the structure at a location such that when the structure is applied to the subject, the second electrode is positioned on a side of the forehead of the subject; a third electrode disposed on the structure for receiving a third electrical signal associated with the subject, wherein the third electrode is disposed on the structure at a location such that when the structure is applied to the subject, the third electrode is positioned on the side of the forehead of the subject at a position further away from the horizontal center of the forehead than the position of the second electrode; a fourth electrode disposed on the structure for receiving a fourth electrical signal associated with the subject, wherein the fourth electrode is disposed on the structure at a location such that when the structure is applied to the subject, the fourth electrode is positioned over a temple of the subject; an optical emitter disposed on the structure for transmitting an optical signal into the subject; a first optical detector disposed on the structure near the optical emitter at a location between the second electrode and the third electrode for receiving an optical signal transmitted into the subject; a second optical detector disposed on the structure at a distance from the emitter for receiving the optical signal transmitted into the subject, wherein the first optical detector is disposed in a location between the optical emitter and the second optical detector; and a temperature sensor disposed on the structure for detecting a temperature of the subject, wherein the temperature sensor is disposed in a location between the first optical detector and the second optical detector in order to substantially isolate the temperature sensor from any heat generated by the optical emitter.
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Specification