Physiological measurement communications adapter
First Claim
1. A communications adapter which is plug compatible with a noninvasive pulse oximetry sensor and which is plug compatible with a pulse oximeter capable of communicating with sensor through conventional cabiling, the communications adapter comprising:
- a sensor interface configured to receive a sensor signal from a noninvasive pulse oximetry sensor through a sensor connector which is plug compatible with said sensor;
a transmitter that modulates a first baseband signal responsive to said sensor signal so as to generate a transmit signal;
a receiver that demodulates a receive signal corresponding to said transmit signal so as to generate a second baseband signal corresponding to said first baseband signal; and
a monitor interface including a monitor connector which is plug compatible with a sensor port of a monitor that is capable of communicating with said sensor through conventional cabling, wherein said monitor interface is configured to communicate a waveform responsive to said second baseband signal to said a sensor port of said monitor, said waveform adapted to said monitor so that measurements derived by said monitor from said waveform are generally equivalent to measurements derivable from said sensor signal.
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Accused Products
Abstract
A sensor interface is configured to receive a sensor signal. A transmitter modulates a first baseband signal responsive to the sensor signal so as to generate a transmit signal. A receiver demodulates a receive signal corresponding to the transmit signal so as to generate a second baseband signal corresponding to the first baseband signal. Further, a monitor interface is configured to communicate a waveform responsive to the second baseband signal to a sensor port of a monitor. The waveform is adapted to the monitor so that measurements derived by the monitor from the waveform are generally equivalent to measurements derivable from the sensor signal. The communications adapter may further comprise a signal processor having an input in communications with the sensor interface, where the signal processor is operable to derive a parameter responsive to the sensor signal and where the first baseband signal is responsive to the parameter. The parameter may correspond to at least one of a measured oxygen saturation and a pulse rate.
1229 Citations
20 Claims
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1. A communications adapter which is plug compatible with a noninvasive pulse oximetry sensor and which is plug compatible with a pulse oximeter capable of communicating with sensor through conventional cabiling, the communications adapter comprising:
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a sensor interface configured to receive a sensor signal from a noninvasive pulse oximetry sensor through a sensor connector which is plug compatible with said sensor;
a transmitter that modulates a first baseband signal responsive to said sensor signal so as to generate a transmit signal;
a receiver that demodulates a receive signal corresponding to said transmit signal so as to generate a second baseband signal corresponding to said first baseband signal; and
a monitor interface including a monitor connector which is plug compatible with a sensor port of a monitor that is capable of communicating with said sensor through conventional cabling, wherein said monitor interface is configured to communicate a waveform responsive to said second baseband signal to said a sensor port of said monitor, said waveform adapted to said monitor so that measurements derived by said monitor from said waveform are generally equivalent to measurements derivable from said sensor signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communications adapter method comprising the steps of:
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receiving a sensor signal at a patient location, said sensor signal being output from a noninvasive sensor capable of communicating with a monitor through conventional cabling;
wirelessly communicating patient data derived from said sensor signal between said patient location and a second location;
constructing a waveform at said second location responsive to said sensor signal; and
providing said waveform to said monitor via a sensor port usable to communicate with the sensor through conventional cabling, said waveform constructed so that said monitor calculates a parameter generally equilvalent to a measurement derivable from said sensor signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A communications adapter comprising:
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a conventional sensor connector which is plug compatible with a conventional noninvasive pulse oximetry sensor and is capable of receiving a sensor signal from said sensor;
means for receiving said sensor signal and outputting a conditioned signal;
means for sending data responsive to said sensor signal;
means for receiving said data;
means for constructing a waveform from said data so that measurements derived by a monitor from said waveform are generally equivalent to measurements derivable from said sensor signal; and
a conventional monitor connector which is plug compatible with a sensor port of said monitor and is capable of communicating said waveform to said sensor port of said monitor, wherein said monitor connector is also capable of communicating with said sensor through conventional cabling. - View Dependent Claims (18, 19, 20)
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Specification