Detection of oximetry sensor sites based on waveform characteristics
AssigneeNellcor Puritan Bennett LLC
InventorClark R. Baker, JR.
Life of this patent
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Abstract
In accordance with an embodiment of the present technique, there is provided methods and systems for detecting the location of a sensor and determining calibration algorithms and/or coefficients for calculation of physiological parameters based on the detected location. An exemplary embodiment includes receiving a signal corresponding to absorption of at least one wavelength of light by a patient's tissue, generating a plethysmographic waveform from the signal, determining an identifying characteristic of the plethysmographic waveform, and determining a location of the sensor based on a comparison of the identifying characteristic with at least one defined criterion.
Claims20
A method for detecting sensor placement, comprising:
- receiving a signal corresponding to absorption of at least one wavelength of light by a patient's tissue;
- generating a plethysmographic waveform from the signal;
- determining an identifying characteristic of the plethysmographic waveform using a processor;
- and
- determining a physical location of the sensor on the patient's body based on a comparison of the identifying characteristic with defined critera associated with different physical locations on the patient's body using the processor.
A system for detecting sensor placement, comprising:
- a sensor having a detector configured to detect the light;
- and
- a monitor configured to generate a plethysmographic waveform from the detected light, determine an identifying characteristic of the plethysmographic waveform, and determine a physical location of the sensor on a patient's body based on a comparison of the identifying characteristic with defined criteria associated with different physical locations on the patient's body.
A device for detecting sensor placement, comprising:
- a processor configured to generate a plethysmographic waveform from a plurality of signals corresponding to absorption of light received from a sensor, to determine an identifying characteristic of the plethysmographic waveform, and to determine a physical location of the sensor on a patient's body based on a comparison of the identifying characteristic with defined criteria associated with different physical locations on the patient's body.
The device of claim 27, wherein the processor is configured to enable venous pulsation detection based on the physical location of the sensor.
Dependencies are inferred from the claim text.