Multiple LED sets in oximetry sensors
First Claim
Patent Images
1. A sensor adaptable to first and second oximeter processing and display units, the sensor comprising:
- (a) measuring means for providing a signal that is a function of an unabsorbed portion of radiation passed by blood, said signal being employable to determine the oxygen saturation of blood, the measuring means comprising;
(i) emitting means for irradiating said blood, comprising a plurality of emitters for providing radiation, each of the plurality of emitters providing a spectral content; and
(ii) detecting means for detecting the unabsorbed portion of radiation passed by the blood; and
(b) connecting means for connecting the measuring means with one of said first and second oximeter processing and display units such that, in a first mode when said measuring means is connected to said first oximeter processing and display unit, a first set of emitters is activated to produce a first set of spectral contents associated with the first set of emitters and, in a second mode when said measuring means is connected to said second oximeter processing and display unit, a second set of emitters is activated to produce a second set of spectral contents associated with the second set of emitters, wherein each of the first and second emitter sets includes at least two of the plurality of emitters and the first and second spectral content sets are different.
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Abstract
The present invention is directed to an oximeter sensor that may be employed with a variety of oximeter processing and display units. The oximeter sensor includes a plurality of radiation emitting devices that are capable of providing a spectral content that is useful in the correlation of a number of different oximeter processing and display units. The oximeter sensor further includes a plurality of resistors, with each resistor being connected to a different oximeter processing and display unit to permit the particular oximeter processing and display unit to select an appropriate correlation curve.
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Citations
23 Claims
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1. A sensor adaptable to first and second oximeter processing and display units, the sensor comprising:
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(a) measuring means for providing a signal that is a function of an unabsorbed portion of radiation passed by blood, said signal being employable to determine the oxygen saturation of blood, the measuring means comprising; (i) emitting means for irradiating said blood, comprising a plurality of emitters for providing radiation, each of the plurality of emitters providing a spectral content; and (ii) detecting means for detecting the unabsorbed portion of radiation passed by the blood; and (b) connecting means for connecting the measuring means with one of said first and second oximeter processing and display units such that, in a first mode when said measuring means is connected to said first oximeter processing and display unit, a first set of emitters is activated to produce a first set of spectral contents associated with the first set of emitters and, in a second mode when said measuring means is connected to said second oximeter processing and display unit, a second set of emitters is activated to produce a second set of spectral contents associated with the second set of emitters, wherein each of the first and second emitter sets includes at least two of the plurality of emitters and the first and second spectral content sets are different. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A sensor adaptable to a variety of oximeter processing and display units, the sensor comprising:
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(a) measuring means for providing a signal that is a function of an unabsorbed portion of radiation passed by blood, including; (i) emitter means for said irradiating said blood, comprising a plurality of emitters respectively providing a plurality of spectral contents; and (ii) detecting means for receiving radiation passed by the blood; and (b) connecting means for connecting the measuring means with one of a first and second oximeter processing and display unit, wherein in a first mode when the connecting means is attached to the first oximeter processing and display unit a first set of the plurality of emitters is activated to generate a first spectral content set and in a second mode when the connecting means is attached to the second oximeter processing and display unit of a second set of the plurality of emitters are activated to generate a second spectral content set, with the first and second sets of emitters being different. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A sensor assembly adaptable to a variety of oximeter processing and display units, including a first oximeter processing and display unit having a corresponding first correlation curve and a second oximeter processing and display unit having a corresponding second correlation curve, the sensor assembly comprising:
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(a) measuring means for providing a signal that is a function of an unabsorbed portion of radiation passed by blood including; (i) emitter means for irradiating the blood; (ii) first and second identification means, said first identification means for identifying the first correlation curve, said second identification means for identifying the second correlation curve; and (iii) detecting means for detecting said unabsorbed radiation; and (b) connecting means for connecting the measuring means to the first oximeter processing and display unit and the second oximeter processing and display unit, wherein when said connecting means is connected to one of the first oximeter processing and display unit and the second oximeter processing and display unit, the corresponding one of said first and second correlation curves is selected based on the corresponding one of said first and second identification means. - View Dependent Claims (19, 20, 21, 22)
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23. A sensor assembly adaptable to a variety of oximeter and display units, including a first oximeter processing and display unit having a corresponding first correlation curve and to a second oximeter processing and display unit having a corresponding second correlation curve, the sensor comprising:
measuring means for providing a signal that is a function of an unabsorbed portion of radiation passed by blood including; (i) a connector having a plurality of connecting elements, a first connecting element for connecting to the first oximeter processing and display unit and a second connecting element for connecting to the second oximeter processing and display unit; (ii) first and second identification means connected to the connector, the first identification means for identifying the first correlation curve corresponding, the second identification means for identifying the second correlation curve; (iii) first, second and third emitters, the first, second and third emitters being connected to the connector such that, when one of the first and second connector elements is connected to the corresponding one of the first and second oximeter processing and display units, only one pair of the first, second and third emitters is energized; and (iv) detecting means for detecting unabsorbed radiation, the detecting means being connected to the connector.
Specification