Reflectance and/or transmissive pulse oximeter
First Claim
Patent Images
1. A sensor comprising:
- a sensor body adapted to be applied to a patient'"'"'s tissue;
a first emitter and a second emitter disposed on the sensor body;
a detector disposed on the sensor body, wherein the first emitter and the detector are capable of operating in transmission mode and the second emitter and the detector are capable of operating in reflectance mode;
a switch disposed on the sensor body and coupled to the first emitter and the second emitter; and
a processor-based controller disposed on the sensor body and configured to receive an input from the detector, wherein the controller is configured to control the switch to alternate between activation of the first emitter and the second emitter based on the input.
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Abstract
According to various embodiments, a medical sensor assembly may be configured to switch between transmission and reflectance mode. Such sensors may include multiple optical sensing components that may be activated or silent, depending on the mode in use. A practitioner may switch between modes based on the particular situation of the patient or based on the signal quality.
883 Citations
16 Claims
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1. A sensor comprising:
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a sensor body adapted to be applied to a patient'"'"'s tissue; a first emitter and a second emitter disposed on the sensor body; a detector disposed on the sensor body, wherein the first emitter and the detector are capable of operating in transmission mode and the second emitter and the detector are capable of operating in reflectance mode; a switch disposed on the sensor body and coupled to the first emitter and the second emitter; and a processor-based controller disposed on the sensor body and configured to receive an input from the detector, wherein the controller is configured to control the switch to alternate between activation of the first emitter and the second emitter based on the input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a sensor comprising; a sensor body adapted to be applied to a patient'"'"'s tissue; a first emitter and a second emitter disposed on the sensor body; a detector disposed on the sensor body, wherein the first emitter and the detector are capable of operating in transmission mode and the second emitter and the detector are capable of operating in reflectance mode, and wherein the sensor is capable of alternating between transmission mode and reflectance mode; and a monitor comprising a processor configured to; detect a signal artifact in a signal from the sensor; determine a characteristic of the signal artifact; and control the activation of the first emitter and the second emitter based on the characteristic of the signal artifact. - View Dependent Claims (13, 14, 15, 16)
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12. The system, as set forth in 11, wherein the sensor comprises at least one of a pulse oximetry sensor or a sensor for measuring water fraction.
Specification