Configuration detection for a sensor assembly
Inventors
Meyer, Benjamin David • Mazar, Scott Thomas
Assignees
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Publication Number
US-11445928-B2
Publication Date
2022-09-20
Expiration Date
Abstract
Methods, systems, and apparatus for detecting configuration for a patient worn sensor assembly are described. In one aspect a method includes receiving, by a computer system, sensor assembly data for a particular sensor assembly, accessing, by the computer system, sensor assembly identifier information defining a plurality of sensor assembly identifiers, where each sensor assembly identifier is associated with a respective sensor assembly, identifying, by the computer system and based on the sensor assembly data, a particular sensor assembly identifier for the particular sensor assembly, and determining, by the computer system, configuration information for the particular sensor assembly based on the particular sensor assembly identifier.
Core Innovation
The invention is a system for detecting a configuration for a patient worn sensor assembly. The system includes a sensor assembly with an adapter including a configuration resistor and a sensor device including an internal reference resistor, where an ADC circuit measures a measured voltage output from a resistive voltage divider defined by the configuration resistor and the internal reference resistor when a reference voltage is applied. The sensor device generates sensor device communication data that includes a sensor assembly identifier and communicates this data to a patient monitoring device.
A controller identifies the sensor assembly based on stored mapping data and the measured voltage output. The mapping data includes associated values between the measured voltage output and the sensor assembly identifier, such that the sensed voltage output is used to select the sensor assembly configuration. The identified sensor assembly configuration drives configuration data used by the patient monitoring device to determine application specific parameters for the sensor assembly.
In addition, the disclosed configuration detection accounts for tolerances and noise by mapping ADC value ranges to sensor assembly identifiers. The configuration data can be used to determine application specific parameters including the number of ECG leads, harness configuration, waveform content, graphical user interface contents, and coefficients. The configuration information can be processed by a bedside monitor or by the chest sensor, with configuration data sent to the monitor, supporting a plug-and-play style update of monitor behavior when switching adapter lead assemblies.
Claims Coverage
Independent claim clm-00001 covers detecting a configuration for a patient worn sensor assembly by measuring an ADC voltage from a resistive voltage divider, mapping the measured voltage to a sensor assembly identifier, and communicating that identifier to a patient monitoring device. Dependent claims refine the mapping and identification with multiple voltage ranges tied to distinct configuration data and unique configuration resistors, and further specify application-specific parameters and additional system details.
ADC-based configuration resistor detection for patient worn sensor assembly
A system where an adapter includes a configuration resistor, and a sensor device includes an internal reference resistor and an ADC circuit to measure a measured voltage output from a resistive voltage divider defined by the configuration resistor and the internal reference resistor when a reference voltage is applied.
Mapping measured voltage output to sensor assembly identifier
A system that stores mapping data including associated values between the measured voltage output and the sensor assembly identifier, and a controller identifies the sensor assembly based on the mapping data and the measured voltage output.
Communicating sensor assembly identifier to a patient monitoring device
A system with first and second communicators where the sensor device generates sensor device communication data including the sensor assembly identifier and the patient monitoring device receives the sensor device communication data from the first communicator.
Multiple measured-voltage ranges linked to configuration data and unique configuration resistors
The mapping data includes a plurality of ranges of measured voltage outputs, where each voltage range corresponds to configuration data for respective sensor assemblies, and each sensor assembly has a unique configuration resistor.
Using identified configuration data to determine application-specific parameters
The patient monitoring device uses configuration data for a particular sensor assembly to determine application specific parameters of that sensor assembly.
Application-specific parameters including number of leads
The application specific parameters specify the number of leads in the particular sensor assembly.
Application-specific graphical display data on a patient monitoring device display
The patient monitoring device includes a display configured to show graphical display data specified by the application specific parameters, where the graphical display data specifies graphical contents to be displayed on the display.
Releasable connection between sensor device and adapter
The system includes a sensor device and an adapter that are releasably connected.
Overall, the claims cover voltage-divider based configuration detection using a configuration resistor and internal reference resistor, identifying the sensor assembly through stored mapping data that relates measured voltage output to a sensor assembly identifier, and communicating that identifier to a patient monitoring device. Dependent refinements extend the mapping with multiple voltage ranges tied to configuration data and unique configuration resistors and apply the identified configuration to determine application-specific parameters including number of leads and graphical display data, with an explicitly releasable adapter-sensor connection.
Stated Advantages
Automatically and plug-and-play detect sensor assembly configuration for a patient monitoring system.
Accounts for tolerances and noise by using mapping data between ADC value ranges and sensor assembly identifiers.
Enables using only the relevant configuration information to drive application-specific parameters, supporting power-saving and bandwidth advantages as described in the provided chunk.
Documented Applications
Patient monitoring device operation using identified configuration data for a patient worn sensor assembly, including updating application-specific parameters such as number of ECG leads, harness configuration, waveform/UI contents, and coefficients when switching adapter lead assemblies.
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