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Disposable components for reusable physiological sensor

  • US 9,895,107 B2
  • Filed: 02/19/2015
  • Issued: 02/20/2018
  • Est. Priority Date: 05/19/2009
  • Status: Active Grant
First Claim
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1. A disposable sensor cartridge system comprising:

  • a clip-type noninvasive physiological sensor including;

    a first housing configured to house at least one of a light emitter or a light detector, the emitter configured to emit light into tissue of a finger of a patient, and the detector configured to receive the emitted light after attenuation by tissue of the finger of the patient;

    a second housing configured to house at least one other of the emitter and the detector; and

    a hinge element hingedly coupling the first housing and the second housing and configured such that an interior surface of the first housing and an interior surface of the second housing define a space of the clip-type noninvasive physiological sensor capable of receiving the finger of the patient; and

    a disposable sensor cartridge configured to be mateable with the clip-type noninvasive physiological sensor by insertion of the disposable sensor cartridge into a position in the space of the clip-type noninvasive physiological sensor such that the emitter is aligned with a first aperture of the disposable sensor cartridge and the detector is aligned with a second aperture of the disposable sensor cartridge, the disposable sensor cartridge including;

    a first portion comprising;

    a first resilient exterior surface that conforms to a shape of the first interior surface of the sensor; and

    the first aperture having a size substantially similar to a size of a fingernail of the patient and configured to facilitate alignment of the first aperture with respect to a nail bed of the finger of the patient;

    a second portion coupled to the first portion and defining a space between the first and second portions capable of receiving the finger of the patient, the second portion including;

    a second resilient exterior surface that conforms to a shape of the second interior surface of the sensor; and

    the second aperture; and

    an information element capable of electrical communication with the clip-type noninvasive physiological sensor when the cartridge is inserted into the sensor, the information element configured to provide compatibility information associated with the cartridge to the sensor,wherein the first and second apertures are configured to allow light emitted from the emitter of the clip-type noninvasive physiological sensor to travel through a path defined by the first and second apertures such that the light is incident on the finger, travels through and is attenuated by the tissue of the finger, exits the finger, and is received by the detector of the clip-type noninvasive physiological sensor.

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