公开(公告)号：US20170354347A1

公开(公告)日：2017-12-14

申请号：US15666612

申请日：2017-08-02

Applicant: OLYMPUS CORPORATION

Inventor： Atsushi CHIBA

IPC: A61B5/06 ,  A61B1/04 ,  A61B1/00

CPC classification number: A61B5/062 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00016 ,  A61B1/00158 ,  A61B1/041

Abstract: A position detection system includes: a cylindrical detection coil configured to detect a magnetic field generated by a magnetic field generation unit; and a calculation unit configured to calculate at least one of a position and a direction of the magnetic field generation unit based on the magnetic field detected by the detection coil. A relationship between a diameter Ds and a length Ls in a winding direction, of the detection coil, satisfies Formula (1), and each of coefficients G1, G2, and G3 in Formula (1) is respectively given by each of Formulae (2), (3) and (4).  G 1  ( L S D S ) 2 + G 2  ( L S D S ) + G 3  ≦ 0.2 ( 1 ) G 1 = - 1.73  10 - 5  D S 2 + 7.36  10 - 3  D S - 4.71  10 - 2 ( 2 ) G 2 = 3.74  10 - 5  D S 2 - 1.54  10 - 3  D S + 1.16  10 - 2 ( 3 ) G 3 = - 8.96  10 - 5  D S 2 - 1.74  10 - 3  D S + 1.30  10 - 2 ( 4 )

公开(公告)号：US20170311773A1

公开(公告)日：2017-11-02

申请号：US15648619

申请日：2017-07-13

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke SUZUKI ,  Atsushi CHIBA ,  Hironao KAWANO ,  Atsushi KIMURA

IPC: A61B1/00 ,  A61B5/06 ,  A61B1/04

CPC classification number: A61B1/00009 ,  A61B1/00016 ,  A61B1/00025 ,  A61B1/00158 ,  A61B1/041 ,  A61B5/062 ,  A61B5/073 ,  A61B2562/046

Abstract: A position detection system includes: a capsule medical device configured to generate a position-detecting magnetic field; a plurality of detection coils arranged outside a subject; and a processor including hardware. The processor is configured to correct a magnetic field component caused by a first magnetic field generation material with respect to each of measurement values of detection signals output from the detection coils, the first magnetic field generation material being arranged inside a space that the position-detecting magnetic field generated by the capsule medical device present inside a detection target region is reachable, the detection target region being a region in which a position of the capsule medical device is detectable, the first magnetic field generation material being configured to generate a magnetic field due to action of the position-detecting magnetic field.

公开(公告)号：US20170020375A1

公开(公告)日：2017-01-26

申请号：US15285777

申请日：2016-10-05

Applicant: OLYMPUS CORPORATION

Inventor： Atsushi CHIBA ,  Hironao KAWANO

IPC: A61B1/04 ,  A61B1/00

CPC classification number: A61B1/041 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00158

Abstract: A capsule medical device guide system includes: a guide unit configured to guide a capsule medical device by a magnetic field; a position detecting unit configured to detect positional information of the capsule medical device; a display unit configured to display information relating to the capsule medical device within a subject; a scale displayed on the display unit and representing a position of the capsule medical device within the subject; a mark representing, on the scale, an area where the magnetic field is in capable of guiding the capsule medical device; a first indicator representing, on the scale, a boundary position of a range in the area; a second indicator representing, on the scale, a current position of the capsule medical device; and a control unit configured to control positions of the first and second indicators on the scale based on the positional information.

Abstract translation: 一种胶囊医疗装置引导系统，包括：引导部，其构造为通过磁场引导胶囊型医疗装置; 位置检测单元，被配置为检测胶囊型医疗装置的位置信息; 显示单元，被配置为显示与被检体内的胶囊型医疗装置有关的信息; 显示在显示单元上的刻度，表示胶囊医疗装置在被检体内的位置; 标记表示磁场能够引导胶囊型医疗装置的区域; 第一个指标，表示该区域范围的边界位置; 第二指示器，其表示胶囊型医疗装置的当前位置; 以及控制单元，被配置为基于位置信息来控制刻度上的第一和第二指示符的位置。