Methods and apparatuses for providing adverse condition notification with enhanced wireless communication range in analyte monitoring systems
Inventors
Assignees
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Publication Number
US-12419589-B2
Publication Date
2025-09-23
Expiration Date
Abstract
Methods, devices, systems, and kits are provided that buffer the time spaced glucose signals in a memory, and when a request for real time glucose level information is detected, transmit the buffered glucose signals and real time monitored glucose level information to a remotely located device, process a subset of the received glucose signals to identify a predetermined number of consecutive glucose data points indicating an adverse condition such as an impending hypoglycemic condition, confirm the adverse condition based on comparison of the predetermined number of consecutive glucose data points to a stored glucose data profile associated with the adverse condition, where confirming the adverse condition includes generating a notification signal when the impending hypoglycemic condition is confirmed, and activate a radio frequency (RF) communication module to wirelessly transmit the generated notification signal to the remotely located device only when the notification signal is generated.
Core Innovation
The invention relates to an on body unit configured to be worn on a user's skin and comprising sensor electronics and a transcutaneous glucose sensor with a distal portion positioned under the user's skin and in fluid contact with interstitial fluid. The sensor electronics include first wireless communication circuitry and second wireless communication circuitry, each configured to operate autonomously, and one or more processors coupled with the wireless communication circuitry and a memory. The memory stores instructions that cause the processors to receive an interrogation signal from a reader device and transition at least a portion of the sensor electronics, including the second wireless communication circuitry, from an inactive power state to an active power state in response to the interrogation signal.
The invention processes time spaced signals received from the transcutaneous glucose sensor to determine if an adverse operating condition is present, and in response to a determination that the adverse operating condition is present, causes the second wireless communication circuitry to transmit a notification signal indicating the adverse operating condition to the reader device. The summarized description includes adverse operating condition detection for sensor failure and sensor dislodgement.
The invention further specifies that wireless communication activation occurs concurrently with, or only when, the notification is generated. The summarized description also includes a circuit board having a conductive layer and an antenna disposed on the conductive layer.
Claims Coverage
The independent claims are clm-00001, clm-00017, and clm-00018. Across these independent claims, the coverage centers on an on-body unit that transitions communication electronics from an inactive power state to an active power state upon an interrogation signal, processes time spaced transcutaneous glucose signals to determine an adverse operating condition, and transmits a notification signal to a reader device through autonomously operating wireless communication circuitry.
Transition from inactive power state on interrogation
The sensor electronics receive, by the first wireless communication circuitry, an interrogation signal from a reader device, and transition at least a portion of the sensor electronics, including the second wireless communication circuitry, from an inactive power state to an active power state in response to the interrogation signal.
Process time spaced transcutaneous glucose signals to detect adverse operating condition
The one or more processors process time spaced signals received from the transcutaneous glucose sensor to determine if an adverse operating condition is present.
Transmit adverse-condition notification using second wireless communication circuitry
In response to a determination that the adverse operating condition is present, cause the second wireless communication circuitry to transmit a notification signal indicating the adverse operating condition to the reader device.
Autonomous dual wireless communication circuitry
The on body unit includes sensor electronics comprising a first wireless communication circuitry and a second wireless communication circuitry, wherein the first wireless communication circuitry and the second wireless communication circuitry are each configured to operate autonomously.
Adverse operating condition includes sensor failure
The adverse operating condition comprises a sensor failure condition, and in response to a determination that the adverse operating condition is present, the second wireless communication circuitry transmits a notification signal indicating the adverse operating condition to the reader device.
Adverse operating condition includes sensor dislodgement
The adverse operating condition comprises a sensor dislodgement condition, and in response to a determination that the adverse operating condition is present, the second wireless communication circuitry transmits a notification signal indicating the adverse operating condition to the reader device.
Circuit board with conductive layer and antenna disposed on the conductive layer
The sensor electronics further comprises a circuit board having a conductive layer and an antenna disposed on the conductive layer.
Independent claim coverage requires dual autonomously operating wireless communication circuits, activation of at least the second wireless circuitry from an inactive power state to an active power state upon receiving an interrogation signal, evaluation of time spaced transcutaneous glucose signals to determine an adverse operating condition, and transmission of an adverse-condition notification signal to the reader device. The independent claims further narrow the adverse operating condition to sensor failure and sensor dislodgement, and one independent claim adds a conductive-layer circuit board with an antenna disposed on the conductive layer.
Stated Advantages
Wireless communication activation occurs concurrently with, or only when, the notification is generated.
Documented Applications
No documented applications found
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