Systems and methods for acquiring calibration data usable in a pause oximeter
First Claim
Patent Images
1. A pulse oximeter attachment comprising:
- a first path adapted to communicate an LED drive current from a host instrument;
a second path adapted to communicate a waveform responsive to said LED drive current to said host instrument;
a memory device; and
calibration data corresponding to said waveform stored in said memory device, said calibration data readable from said memory device so as to enable said host instrument to calculate an accurate oxygen saturation value.
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Abstract
The present disclosure includes a pulse oximeter attachment having an accessible memory. In one embodiment, the pulse oximeter attachment stores calibration data, such as, for example, calibration data associated with a type of a sensor, a calibration curve, or the like. The calibration data is used to calculate physiological parameters of pulsing blood.
228 Citations
19 Claims
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1. A pulse oximeter attachment comprising:
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a first path adapted to communicate an LED drive current from a host instrument;
a second path adapted to communicate a waveform responsive to said LED drive current to said host instrument;
a memory device; and
calibration data corresponding to said waveform stored in said memory device, said calibration data readable from said memory device so as to enable said host instrument to calculate an accurate oxygen saturation value. - View Dependent Claims (2, 3)
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4. A method of acquiring calibration information, the method comprising:
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providing an LED drive path;
providing an a detector drive path;
providing a memory interface;
receiving a drive current on said LED drive path;
transmitting a waveform on said detector drive path in response to said drive current;
uploading stored calibration information over said interface; and
utilizing said calibration information to relate said waveform to oxygen saturation. - View Dependent Claims (5)
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6. A pulse oximeter attachment comprising:
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a first path adapted to communicate a sensor drive signal from a host instrument;
a second path adapted to communicate information responsive to said sensor drive signal to said host instrument;
a memory device; and
calibration data stored in said memory device and adapted to be read from said memory device to calculate an oxygen saturation value. - View Dependent Claims (7, 8)
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9. A pulse oximeter comprising:
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a port;
a first path adapted to communicate an LED drive current to an attachment communicating with said port;
a second path adapted to communicate a waveform responsive to said LED drive current from said port;
an interface adapted to read calibration data from said attachment; and
a processor configured to correspond oxygen saturation with said calibration data and said waveform. - View Dependent Claims (10, 11, 12)
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13. A method of uploading calibration data associated with a pulse oximetry sensor, the method comprising:
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communicating an LED drive current configured to drive a pulse oximetry sensor;
receiving a waveform responsive to said LED drive current; and
uploading calibration data associated with the pulse oximetry sensor. - View Dependent Claims (14, 15)
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16. A pulse oximeter comprising:
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an LED drive signal adapted to be transmitted to a sensor;
a detector signal adapted to received from the sensor in response to said LED drive signal;
an interface configured to access calibration data from an attached memory;
a processor responsive to said detector signal and said calibration data; and
an oxygen saturation display responsive to said processor.
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17. A method comprising:
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transmitting an LED drive current to a removable attachment;
receiving a detector signal in response to said LED drive current;
uploading calibration data from the removable attachment; and
utilizing said calibration data to display an oxygen saturation consistent with said detector signal.
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18. An apparatus for storing calibration data used by a processor calculating parameters associated with pulsing blood, the apparatus comprising:
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means for outputting light to be transmitted through body tissue carrying pulsing blood;
means for outputting an intensity signal responsive to the light; and
means for storing the calibration data remote to an oximeter including a processor configured to calculate oxygen saturation of pulsing blood. - View Dependent Claims (19)
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Specification