INTERMITTENT OPERATING BATTERY-LESS WIRELESS SENSOR AND PULSE OXIMETER

摘要

Systems and method for utilizing energy harvesting techniques to power a battery-less wireless medical sensor to perform intermittent operations are disclosed. The systems may include one or more sensing components configured to generate data related to one or more physiological parameters by performing intermittent measurements on a patient. The systems and method may include wireless communication circuitry configured to wirelessly transmit the data to a monitor. The monitor may be configured to operate with the battery-less wireless medical sensor or may download required operational algorithms if needed. The intermittent measurement and transmission may be asynchronously executed. The systems and method may include a processing device configured to determine when to perform the intermittent measurement and transmit data based at least upon a power source energy level, a rate at which to perform the intermittent measurement and transmit data, a prioritization, or a triggering event.

主权项

1. A medical sensor, comprising:
a battery-less power source configured to store energy; a charging device configured to harvest energy from body heat, body movement, or ambient light and to charge the power source; a charging control circuit configured to determine a power source energy level of the power source; a sensing component configured to perform an intermittent measurement to obtain data related to one or more physiological parameters from a patient; wireless communication circuitry configured to wirelessly transmit at least the data related to the one or more physiological parameters; and a processing device configured to determine if the power source energy level is sufficient to perform the intermittent measurement or to wirelessly transmit at least the data related to the one or more physiological parameters and to determine whether to perform the intermittent measurement or to wirelessly transmit at least the data related to the one or more physiological parameters based upon one or more of the power source energy level, an intermittent measurement rate, a transmission rate, prioritization of the intermittent measurement relative to wireless transmission of at least the data related to one or more physiological parameters, or a triggering event.