Patent ID: 8005536

Claim:
A system for diagnosing an inflammatory gastrointestinal disorder comprising: a capsule tracking system configured to track the location of a capsule within an intestinal tract via an acoustic signal transmitted between the autonomous capsule and a location external a patient's body, the tracking system configured to be worn by a patient and track the location of the capsule within the intestinal tract using a 3 dimensional coordinate system defined in part by locations of the tracking system on the patient's skin; an autonomous capsule comprising a temperature sensor configured to sense a first temperature at a first temperature location within the intestinal tract and a second temperature at a second temperature location within the intestinal tract, and an impedance sensor configured to sense a first impedance over multiple frequencies at a first impedance location and a second impedance over multiple frequencies at a second impedance location; and a processor coupled to the temperature sensor to receive a signal representative of the first and/or second temperature sensed by the temperature sensor, and coupled to the impedance sensor to receive a signal representative of the first and/or second impedance sensed by the impedance sensor, wherein the processor is coupled to the capsule tracking system, and wherein the processor is configured to determine a change in temperature between the first temperature location and the second temperature location, and a change in impedance between the first impedance location and the second impedance location.