Blood parameter measurement system
First Claim
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1. A blood parameter measurement system comprising:
- a monitor configured to provide an oxygen saturation measurement based upon the absorption of two wavelengths of optical radiation by a tissue site;
a software upgrade installable in said monitor so as to enable said monitor to operate in conjunction with a multiple wavelength sensor; and
a wavelength controller adapted to said upgrade so as to drive said sensor, wherein said upgrade comprises;
sampling software providing a drive waveform for said sensor; and
signal processing software adapted to demodulate a multiplexed signal from said sensor.
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Abstract
A blood parameter measurement system has a monitor configured to provide an oxygen saturation measurement based upon the absorption of two wavelengths of optical radiation by a tissue site. A software upgrade is installable in the monitor so as to enable the monitor to operate in conjunction with a multiple wavelength sensor. A wavelength controller is adapted to the upgrade so as to drive the sensor.
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Citations
19 Claims
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1. A blood parameter measurement system comprising:
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a monitor configured to provide an oxygen saturation measurement based upon the absorption of two wavelengths of optical radiation by a tissue site; a software upgrade installable in said monitor so as to enable said monitor to operate in conjunction with a multiple wavelength sensor; and a wavelength controller adapted to said upgrade so as to drive said sensor, wherein said upgrade comprises; sampling software providing a drive waveform for said sensor; and signal processing software adapted to demodulate a multiplexed signal from said sensor. - View Dependent Claims (2, 3, 4)
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5. A blood parameter measurement system comprising:
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a monitor configured to provide an oxygen saturation measurement based upon the absorption of two wavelengths of optical radiation by a tissue site; a software upgrade installable in said monitor so as to enable said monitor to operate in conjunction with a multiple wavelength sensor; and a wavelength controller adapted to said upgrade so as to drive said sensor, wherein said wavelength controller is located in an adapter cable, and said adapter cable provides an interface between the sensor port of said monitor and said sensor.
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6. A blood parameter measurement system comprising:
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a monitor configured to provide an oxygen saturation measurement based upon the absorption of two wavelengths of optical radiation by a tissue site; a software upgrade installable in said monitor so as to enable said monitor to operate in conjunction with a multiple wavelength sensor; and a wavelength controller adapted to said upgrade so as to drive said sensor, wherein said wavelength controller is integrated into said sensor. - View Dependent Claims (7)
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8. A blood parameter measurement system comprising:
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a monitor configured to provide an oxygen saturation measurement based upon the absorption of two wavelengths of optical radiation by a tissue site; a software upgrade installable in said monitor so as to enable said monitor to operate in conjunction with a multiple wavelength sensor; and a wavelength controller adapted to said upgrade so as to drive said sensor, wherein said wavelength controller comprises; a sensor control configured to route a drive signal to a select one of a plurality of sensor emitters; and a sync detector adapted to decode a sync interval on said drive signal so as to synchronize the operations of said software upgrade and said wavelength controller. - View Dependent Claims (9, 10, 11, 12)
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13. A blood parameter measurement method comprising the steps of:
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communicating a drive, signal from a monitor to a sensor; synchronizing said sensor with said monitor; sequentially enabling a plurality of emitters of said sensor; and communicating a sensor signal from said sensor to said monitor, wherein said synchronizing step comprises the substeps of; inputting said drive signal to a wavelength controller; and decoding a header interval of said drive signal so as to detect a sync event. - View Dependent Claims (14, 15)
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16. A blood parameter measurement system comprising:
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a multiple wavelength sensor means for illuminating a tissue site with at least three wavelengths and detecting a corresponding tissue sfte response; a software upgrade means for enabling a pulse oximetry monitor to drive said sensor and process a corresponding sensor signal; and a wavelength controller means for interfacing between said software upgrade means and said multiple wavelength sensor means. - View Dependent Claims (17, 18, 19)
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Specification