PATIENT MONITOR PLACEMENT INDICATOR
First Claim
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1. A noninvasive medical monitoring device, said monitoring device comprising:
- a physiological sensor configured to output at least one physiological signal; and
a monitor comprising a display and a signal processing system comprising;
a placement indication calculator configured to calculate a placement indication value based, at least in part, on at least one reference transmittance value indicative of a reference position of said physiological sensor and at least one operating transmittance value indicative of a position of said physiological sensor, wherein said placement indication value is indicative of said position of said physiological sensor on said measurement site relative to said reference position; and
a processing module configured to determine whether said placement indication value exceeds a placement indication threshold.
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Abstract
A monitoring device for measuring one or more physiological parameters of a medical patient can include a finger clip sensor connected to a monitor. A placement indicator helps the patient to properly position the sensor. The monitor can display a message alerting the patient to reposition the sensor. The device can delay measurement until the sensor is properly positioned.
194 Citations
20 Claims
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1. A noninvasive medical monitoring device, said monitoring device comprising:
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a physiological sensor configured to output at least one physiological signal; and a monitor comprising a display and a signal processing system comprising; a placement indication calculator configured to calculate a placement indication value based, at least in part, on at least one reference transmittance value indicative of a reference position of said physiological sensor and at least one operating transmittance value indicative of a position of said physiological sensor, wherein said placement indication value is indicative of said position of said physiological sensor on said measurement site relative to said reference position; and a processing module configured to determine whether said placement indication value exceeds a placement indication threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of determining positioning of a sensor, said method comprising:
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calculating at least one reference transmittance value from a first plurality of physiological signals received from a sensor on a measurement site of a patient, wherein said at least one reference transmittance value is indicative of a reference position of said sensor on said measurement site; calculating at least one operating transmittance value from a second plurality of physiological signals received from said sensor, wherein said at least one operating transmittance value is indicative of a current position of said sensor on said measurement site; calculating a placement indication value based, at least in part, on said at least one reference transmittance value and said at least one operating transmittance value; determining whether said placement indication value exceeds a placement indicator threshold; and , generating an output on a display based at least in part on said placement indication value when said placement indication value exceeds said placement indicator threshold. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of determining positioning of a sensor on a measurement site of a patient, said method comprising:
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calculating a first value from a first set of physiological signal data received from said sensor, wherein said first value is indicative of a first position of said sensor on said measurement site; calculating a second value from a second set of physiological signal data received from said sensor after calculating said first value, wherein said second value is indicative of a second position of said sensor on said measurement site; comparing said first value and said second value; and generating an indicator on a monitor based at least in part on the comparison between said first value and said second value. - View Dependent Claims (18, 19, 20)
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Specification