DISPOSABLE ACTIVE PULSE SENSOR
First Claim
1. A disposable active pulse sensor configured to induce pulsatile blood flow within a tissue site so as to generate a sensor signal responsive to constituents of the pulsatile blood flow comprising:
- an emitter that generates optical radiation having a plurality of wavelenths;
a detector that is responsive to the optical radiation;
an unbalanced electrical motor that vibrates when energized; and
a tape assembly that removably attaches the emitter, the detector and the unbalanced electrical motor to a tissue site,wherein the tape assembly physically mounts the emitter, the detector and the unbalanced electrical motor in a spatial arrangement so that vibration from the unbalanced electrical motor induces pulsatile blood flow within the tissue site, the emitter transmits the optical radiation into the tissue site and the detector generates a sensor signal responsive to the intensity of the optical radiation after attenuation by the pulsatile blood flow within the tissue site.
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Accused Products
Abstract
A disposable active pulse sensor has an emitter that generates optical radiation having a plurality of wavelengths, a detector that is responsive to the optical radiation and an unbalanced electrical motor that vibrates when energized. A tape assembly removably attaches the emitter, the detector and the unbalanced electrical motor to a tissue site. The tape assembly also physically mounts the emitter, the detector and the unbalanced electrical motor in a spatial arrangement so that vibration from the unbalanced electrical motor induces pulsatile blood flow within the tissue site, the emitter transmits the optical radiation into the tissue site and the detector generates a sensor signal responsive to the intensity of the optical radiation after attenuation by the pulsatile blood flow within the tissue site.
103 Citations
15 Claims
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1. A disposable active pulse sensor configured to induce pulsatile blood flow within a tissue site so as to generate a sensor signal responsive to constituents of the pulsatile blood flow comprising:
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an emitter that generates optical radiation having a plurality of wavelenths; a detector that is responsive to the optical radiation; an unbalanced electrical motor that vibrates when energized; and a tape assembly that removably attaches the emitter, the detector and the unbalanced electrical motor to a tissue site, wherein the tape assembly physically mounts the emitter, the detector and the unbalanced electrical motor in a spatial arrangement so that vibration from the unbalanced electrical motor induces pulsatile blood flow within the tissue site, the emitter transmits the optical radiation into the tissue site and the detector generates a sensor signal responsive to the intensity of the optical radiation after attenuation by the pulsatile blood flow within the tissue site. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A disposable active pulse sensor method for inducing pulsatile blood flow within a tissue site so as to determine at least one constituent of the pulsatile blood flow comprising:
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removably attaching an emitter, a detector and an unbalanced electric motor to a tissue site; illuminating the tissue site with optical radiation having a plurality of wavelengths from the emitter; generating a sensor signal from the detector that is responsive to the optical radiation after attenuation by pulsatile blood flow within the tissue site; determining that there is insufficient arterial pulsatile blood flow to measure a desired constituent of the pulsatile blood flow in response to the sensor signal; and energizing the unbalanced electric motor so as to induce a sufficient pulsatile blood flow within the tissue site from motor vibrations. - View Dependent Claims (9, 10, 11, 12)
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13. A disposable active pulse sensor comprising:
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an emitter means for transmitting optical radiation having a plurality of wavelengths into a tissue site; a detector means for generating a sensor signal responsive to the optical radiation after attenuation by pulsatile blood flow within the tissue site; an active pulse means for inducing pulsatile blood flow within the tissue site of sufficient volume so as to allow the measurement of a plurality of blood constituents within the pulsatile blood flow; and a tape means for mounting the emitter means, detector means and active pulse means in a predetermined configuration and removably attaching the emitter means, detector means and active pulse means to the tissue site. - View Dependent Claims (14, 15)
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Specification