Optically aligned pulse oximetry sensor and technique for using the same
First Claim
Patent Images
1. A sensor assembly, comprising:
- a frame comprising one or more pair of flexible elements disposed substantially symmetric relative to an optical axis;
at least two optical components disposed on the frame along the optical axis; and
a covering provided over at least part of the frame and the at least two optical components.
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Abstract
A physiological sensor is provided that includes an emitter and detector disposed on a frame such that the emitter and detector define an optical axis. The frame includes one or more pair of flexible elements disposed generally symmetric relative to the optical axis. In one embodiment, the emitter and detector remain aligned when moved relative to one another along the optical axis.
118 Citations
20 Claims
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1. A sensor assembly, comprising:
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a frame comprising one or more pair of flexible elements disposed substantially symmetric relative to an optical axis;
at least two optical components disposed on the frame along the optical axis; and
a covering provided over at least part of the frame and the at least two optical components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sensor assembly, comprising:
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a frame;
an emitter and a detector housed on the frame along an optical axis, wherein the emitter and the detector are configured to move relative to one another while remaining aligned along the optical axis; and
a covering provided over the frame, the emitter, and the detector.
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13. A method of manufacturing a sensor, comprising:
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situating an emitter and a detector on a frame, wherein the frame comprises one or more pair of flexible elements disposed substantially symmetric relative to an optical axis upon which the emitter and the detector are situated; and
coating the frame with a coating material to form a sensor assembly.
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14. A method for acquiring physiological data, comprising:
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emitting two or more wavelengths of light from an emitter of a sensor assembly disposed on a patient;
detecting transmitted or reflected light using a photodetector of the sensor assembly, wherein the emitter and the photodetector are maintained in optical alignment with one another along an optical axis by one or more pair of flexible elements of the sensor assembly, wherein the one or more pair of flexible elements are disposed symmetrical to the optical axis; and
determining a physiological parameter based on the detected light.
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15. A method of manufacturing a sensor body, comprising:
coating a frame with a coating material to form a sensor body, wherein the frame comprises one or more pair of flexible elements disposed substantially symmetric relative to an optical axis defined by an emitter housing and a detector housing of the frame.
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16. A sensor body, comprising:
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a frame comprising one or more pair of flexible elements disposed substantially symmetric relative to an optical axis defined by an emitter housing and a detector housing of the frame; and
a covering provided over the frame.
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17. A sensor body, comprising:
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a frame comprising an emitter housing and a detector housing which define an optical axis, wherein the emitter housing and the detector housing are configured to move relative to one another while remaining aligned along the optical axis; and
a covering provided over the frame to form a sensor assembly.
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18. A frame of a sensor, comprising:
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at least two optical component housings defining an optical axis; and
one or more pair of flexible elements disposed substantially symmetric relative to the optical axis.
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19. A frame of a sensor, comprising:
an emitter housing and a detector housing which define an optical axis, wherein the emitter housing and the detector housing are configured to move relative to one another while remaining aligned along optical axis.
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20. A method for manufacturing a frame of a sensor, comprising:
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forming at least two optical component housings of a frame of a sensor such that the at least two optical component housings define an optical axis; and
providing one or more pair of flexible elements on the frame disposed substantially symmetric relative to the optical axis.
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Specification