A wireless disposable single-use continuous pulse oximeter sensor assembly, comprising:
- a component assembly, including:
- an optical sensor attached to a printed circuit board, the optical sensor comprising at least one light emitter to emit light toward a measurement site of a patient and at least one light detector to detect light reflected from the measurement site, the at least one light emitter and the at least one light detector mounted in at least one optical cavity that includes one or more walls that are optically dark with respect to one or more light wavelength ranges of interest;
- a radio attached to the printed circuit board;
- an antenna operably connected to the radio;
- a battery operably connected to the optical sensor and the radio;
- a processor attached to the printed circuit board and operably connected to the optical sensor, the radio, and the battery;
- and
- a memory operably connected to the processor and storing instructions that when executed by the processor, cause operations of:
- modulating the at least one light emitter using a first modulation scheme or a second modulation scheme based on a determination that the pulse oximeter sensor assembly is measuring a parameter related to blood, wherein:
- in the first modulation scheme:
- in a first period of time, only a first light wavelength range is turned on for approximately twenty-five percent of the modulation time cycle, only a second light wavelength range is turned on for approximately twenty-five percent of a modulation time cycle, and both the first light wavelength range and the second light wavelength range are turned off for approximately fifty percent of the modulation time cycle;
- and
- in a second period of time, only a third light wavelength range is turned on for approximately twenty-five percent of the modulation time cycle, only the second light wavelength range is turned on for approximately twenty-five percent of the modulation time cycle, and both the third light wavelength range and the second light wavelength range are turned off for approximately fifty percent of the modulation time cycle;
- or
- in the second modulation scheme:
- only a first wavelength range is turned on for approximately twenty-five percent of a modulation time cycle, only a second light wavelength range is turned on for approximately twenty-five percent of the modulation time cycle, and both the first light wavelength range and the second light wavelength range are turned off for approximately fifty percent of the modulation time cycle;
- processing at least one of a low latency task or a low complexity task based on data received from the optical sensor;
- and
- causing wireless transmission, via the radio and the antenna, of processed data associated with the low latency task or the low complexity task to at least one host device, wherein the host device is operable to process the processed data to estimate at least one of an oxygen saturation level of blood, a pulse rate, or a blood perfusion index of the patient;
- and
- an encapsulation material encapsulating the component assembly and configured to attach the pulse oximeter sensor assembly to the measurement site using an adhesive on a surface of the encapsulation material.