US 12,471,767 B2
Capsule endoscopy system
Naotake Ohtsuka, Kusatsu (JP); Yasunori Shindo, Kusatsu (JP); and Yoshitake Otsuka, Kusatsu (JP)
Assigned to MU Ltd., Shiga (JP)
Appl. No. 18/019,838
Filed by MU Ltd., Kusatsu (JP)
PCT Filed Aug. 2, 2021, PCT No. PCT/JP2021/028653
§ 371(c)(1), (2) Date Feb. 6, 2023,
PCT Pub. No. WO2022/030458, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 2020-134541 (JP), filed on Aug. 7, 2020.
Prior Publication US 2023/0309805 A1, Oct. 5, 2023
Int. Cl. A61B 1/04 (2006.01); A61B 1/00 (2006.01); A61B 5/06 (2006.01)
CPC A61B 1/041 (2013.01) [A61B 1/00158 (2013.01); A61B 5/062 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A capsule endoscopy system comprising:
a capsule endoscope having a permanent magnet; and
an external magnetic field generation device that drives the capsule endoscope, wherein
the external magnetic field generation device includes three sets of electromagnets provided at positions facing each other in three orthogonal axes, and
each of the sets of electromagnets can cause different arbitrary currents to flow in the electromagnets facing each other.