Diagnostic capsule and preparation method thereof

The invention relates to the technical field of medical instruments, in particular to a pathfinding capsule and a preparation method thereof. The second disintegration main body is connected to two ends of the first disintegration main body; the developing marker is arranged in the first disintegration main body and/or the second disintegration main body and is formed by extruding a mixture of barium sulfate and polymer medical plastic; and the waterproof film is plated on the outer surfaces of the first disintegration main body and the second disintegration main body and is provided with a notch part. According to the path-finding capsule, the X-ray-impermeable developing marker is adopted as the developing marker, the disintegration position or the disintegration state can be determined through abdominal shooting after the path-finding capsule is decomposed in the body of a patient, then the capsule retention position of the patient is determined, and the existing path-finding capsule preparation technology