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Optical capsule and spectroscopic method for treating and diagnosing the intestinal tract

  • US 10,226,608 B2
  • Filed: 09/24/2015
  • Issued: 03/12/2019
  • Est. Priority Date: 06/26/2001
  • Status: Active Grant
First Claim
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1. A system for diagnosing a gastrointestinal condition in an intestinal tract of a patient, the system comprising:

  • an autonomous capsule sized to pass through the intestinal tract of a patient, the autonomous capsule comprising;

    a light source configured to emit light from the autonomous capsule so that the emitted light is reflected from intestinal tract tissue when the autonomous capsule is moving through the intestinal tract; and

    a sensor configured to sense reflected light for at least one wavelength at a first location within the intestinal tract and to output a signal representative of light sensed by the sensor at the at least one wavelength, each at least one wavelength associated with a corresponding condition of intestinal tract tissue;

    a processor operatively coupled to the sensor and configured to receive a signal representative of light sensed by the sensor, the processor further configured to associate each of the at least one wavelength with the corresponding condition of intestinal tract tissue, to select a gastrointestinal condition of intestinal tract tissue for detection, to control the emission of light from the light source for detecting the selected condition, to control wavelengths of light sensed by the sensor, and to determine a presence of the condition of intestinal tract tissue based at least in part on the received signal, the condition being at least one of a presence of a substance, an absence of a substance, or a condition of tissue of the intestinal tract; and

    an autonomous capsule tracking system, the autonomous capsule tracking system including multiple ultrasound receivers and an acoustic reference receiver, wherein the multiple ultrasound receivers and the acoustic reference receiver are configured to establish multiple differential times between the multiple ultrasound receivers and the acoustic reference receiver; and

    a treatment capsule configured to treat the condition determined to be present by the autonomous capsule, wherein the treatment capsule includes a first electrode located on a capsule body of the treatment capsule, and a second electrode located on an elongate member extending from the capsule body.

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