Bi-Digital O-Ring Test (BDORT)

The Bi-Digital O-Ring Test (BDORT; Japanese: バイ・デジタルO－リングテスト), also known simply as the O-Ring Test (O-リングテスト) is a diagnostic technique, developed and patented by Yoshiaki Omura (大村恵昭), which seeks to determine the health of a targeted internal organ on the basis of a diagnostician's reading of a subject's response to having their thumb and forefinger, held in the shape of an O-Ring, pulled apart by the diagnostician while the subject holds a probing wand to - or directly handles - a tissue sample of an organ matching that to be targeted. It is also claimed to be effective in determining the positive and negative effects of foods, medicines, and nutritional supplements on a subject. The test operates on two assumptions: first, the subject's internal organ and the tissue sample interact via an "electromagnetic field"; and second, the diagnostician is able to sense this interaction by judging the subject's finger strength when having them pulled apart.

The Patent

 * US5188107, Bi-Digital O-Ring Test for Imaging and Diagnosis of Internal Organs of a Patient, 23 Feb. 1993, filed 13 Feb. 1990. Assigned to Yoshiaki Omura. "A method of imaging an internal organ of a patient for purposes of medical diagnosis, where a patient forms an O-ring shape with one of hands by placing the fingertips of his thumb and one of his remaining fingers together and a sample of tissue of an internal organ is placed on the patient's other hand, and the patient's internal organ is non-invasively externally probed with a probing instrument. The internal organ is the same type of organ as that of the sample. Simultaneously a tester attempts to pull apart the O-ring shape by means of the tester placing his thumb and one of the remaining fingers of each of his hands within the O-ring shape of the patient to form interlocking O-rings and pulling the thumb and the finger of the patient apart due to an electromagnetic field of the tissue of the sample interacting with an electromagnetic field of the internal organ being probed and this interaction is detected by the ability to pull apart the O-ring shape thereby permitting imaging of the boundaries of the internal organ being probed." https://patents.google.com/patent/US5188107