Patent ID: 9060706
Filing Date: 2015-06-23
Classification: A61B,H01M,Y02P

Abstract:
1. A capsule medical device comprising: a casing having a capsule shape; a plurality of batteries that feed power supply to various devices provided in the casing, each battery having a first face, a second face opposite to the first face, a first electrode provided on a central region of the first face to project from the first face and a second electrode provided over a peripheral edge of the first face through a side face from the second face, the first electrode and the second electrode being electrically insulated from each other via a separator; and a short-circuit prevention member that is arranged among the plurality of batteries to secure an electrical connection among the plurality of batteries and to obtain insulation between the first electrode and a portion of the second electrode on the peripheral edge, wherein the short-circuit prevention member includes an insulating member having an annular shape, covering the portion of the second electrode, and formed with an aperture from which the first electrode is exposed, an outer diameter of the annular shape is smaller than an inner diameter of the casing, and larger than an outer diameter of the battery, a diameter of the aperture is larger than a diameter of the first electrode, and smaller than a diameter of the portion of the second electrode; and a cross-section of the aperture of the insulating member, the cross-section being orthogonal to the aperture face, has a taper shape.