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1. 发明授权

US10561298B2 Position detection system and position detection method 有权
公开(公告)号：US10561298B2
公开(公告)日：2020-02-18
申请号：US15648619
申请日：2017-07-13
申请人： OLYMPUS CORPORATION
发明人： Yusuke Suzuki , Atsushi Chiba , Hironao Kawano , Atsushi Kimura
IPC分类号： A61B1/00 , A61B5/06 , A61B1/04
摘要： 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.

2. 发明授权

US09766093B2 Position detecting system 有权
公开(公告)号：US09766093B2
公开(公告)日：2017-09-19
申请号：US15381887
申请日：2016-12-16
申请人： OLYMPUS CORPORATION
发明人： Takahiro Iida , Atsushi Chiba , Yusuke Suzuki , Atsushi Kimura
IPC分类号： G01B7/14 , G01D5/20 , A61B5/06 , A61B1/04
CPC分类号： G01D5/20 , A61B1/00158 , A61B1/041 , A61B5/062 , A61B5/073 , A61B5/7257 , G01D5/2066
摘要： A position detecting system includes: a capsule medical device having therein a magnetic field generation coil for generating a magnetic field; detection coils configured to detect the magnetic field generated by the magnetic field generation coil, and to output detection signals; at least one reference coil configured to detect a magnetic field and to output a detection signal, and arranged at a position where a signal-to-noise ratio to the magnetic field generated by the magnetic field generation coil is smaller than a signal-to-noise ratio in each of the detection signals detected by the detection coils; and a magnetic field correction unit configured to correct magnetic field detection values based on the detection signals respectively output from the detection coils, using at least one reference magnetic field detection value that is a detection value of the magnetic field based on the detection signal output from the at least one reference coil.

3. 发明授权

US11103124B2 Position detection apparatus, position detection system, and position detection method 有权
公开(公告)号：US11103124B2
公开(公告)日：2021-08-31
申请号：US16537734
申请日：2019-08-12
申请人： OLYMPUS CORPORATION
发明人： Yusuke Suzuki , Atsushi Chiba
IPC分类号： A61B1/00 , H04B17/318 , A61B1/04 , G01S5/14
摘要： A position detection apparatus includes: a first antenna attached to a predetermined position of a subject and configured to receive a wireless signal transmitted from a medical apparatus inserted into the subject; a second antenna attached to the subject at a different position relative to the first antenna and configured to receive the wireless signal; and a processor comprising hardware. The processor is configured to: calculate a first received strength of the wireless signal received by the first antenna and a second received strength of the wireless signal received by the second antenna; calculate an attachment position of the second antenna based on the first and the second received strengths; and calculate a position of the medical apparatus based on: the first and the second received strengths; the calculated position of the first antenna; and the calculated position of the second antenna.

4. 发明授权

US09591991B2 Position detection system 有权
标题翻译：位置检测系统
公开(公告)号：US09591991B2
公开(公告)日：2017-03-14
申请号：US15008926
申请日：2016-01-28
申请人： OLYMPUS CORPORATION
发明人： Takahiro Iida , Atsushi Kimura , Atsushi Chiba , Ryoji Sato
IPC分类号： A61B5/00 , A61B5/06 , A61B1/04
CPC分类号： A61B5/062 , A61B1/041
摘要： A position detection system for detecting a position of a capsule medical device is provided. The capsule medical device has a coil constituting a part of a resonance circuit to generate an AC magnetic field. The position detection system includes: sensing coils that detect the AC magnetic field and output detection signals; and a calculation unit that calculates the position of the capsule medical device based on the detection signals. The calculation unit: determines a sensing coil having a maximum amplitude of the AC magnetic field as a reference coil among the sensing coils based on amplitude values of the AC magnetic field detected by the sensing coils, the amplitude values being calculated based on the detection signals; and determines a polarity of each sensing coil based on a first detection signal from the reference coil and a second detection signal from each sensing coil other than the reference coil.
摘要翻译：提供了一种用于检测胶囊型医疗装置的位置的位置检测系统。胶囊医疗装置具有构成谐振电路的一部分的线圈，以产生交流磁场。位置检测系统包括：检测线圈，检测交流磁场并输出检测信号; 以及计算单元，其基于检测信号计算胶囊型医疗装置的位置。计算单元基于感测线圈检测的交流磁场的振幅值，确定感测线圈中具有作为基准线圈的交流磁场的最大振幅的感测线圈，基于检测信号计算振幅值 ; 并且基于来自参考线圈的第一检测信号和除了参考线圈之外的每个感测线圈的第二检测信号来确定每个感测线圈的极性。

5. 发明授权

US10932690B2 Position detection system and operation method of position detection system 有权
公开(公告)号：US10932690B2
公开(公告)日：2021-03-02
申请号：US15791645
申请日：2017-10-24
申请人： OLYMPUS CORPORATION
发明人： Atsushi Chiba
IPC分类号： A61B5/06 , G01B7/30 , A61B5/00 , A61B1/00 , G01B7/00 , A61B1/04
摘要： A position detection system includes: a detection target; detection coils each outputting a detection signal of strength of the alternating magnetic field; a guidance magnetic field generator including a magnetic field generation source, and a driving mechanism, wherein at least a part of the guidance magnetic field generator is formed of a conductor that generates an interference magnetic field; and a processor configured to: control an operation of the driving mechanism; calculate a correction value by using at least one of a position and a posture of the conductor; correct the measured value by using the correction value; and calculate at least one of a position and a posture of the detection target based on the corrected measured value.

6. 发明授权

US09517001B2 Capsule endoscope system 有权
标题翻译：胶囊内窥镜系统
公开(公告)号：US09517001B2
公开(公告)日：2016-12-13
申请号：US15053084
申请日：2016-02-25
申请人： OLYMPUS CORPORATION
发明人： Atsushi Chiba , Hironobu Takizawa , Ryoji Sato , Hironao Kawano , Kazuhiko Takahashi , Takuto Ikai
IPC分类号： A61B1/04 , A61B1/00 , A61B5/07 , A61B5/11
CPC分类号： A61B1/041 , A61B1/00006 , A61B1/00009 , A61B1/00045 , A61B1/0005 , A61B1/00158 , A61B5/073 , A61B5/1116 , A61B5/1121
摘要： A capsule endoscope system includes: a capsule endoscope configured to be introduced into a subject; a guiding unit that generates a magnetic field to guide the capsule endoscope; a guidance magnetic field control unit that switches between ON and OFF of the magnetic field; a body posture discriminating unit that discriminates a body posture of the subject; a model extracting unit that extracts a body posture model according to the body posture of the subject, from among prepared body posture models, and extracts an organ model according to the body posture of the subject, from among prepared organ models; and a display control unit configured to: superimpose the organ model according to the body posture of the subject, on the extracted body posture model when the magnetic field is ON; and display the extracted body posture model and to hide the organ model when the magnetic field is OFF.
摘要翻译：一种胶囊型内窥镜系统，包括：胶囊型内窥镜，被配置为被导入被检体; 引导单元，其产生用于引导胶囊型内窥镜的磁场; 引导磁场控制单元，其在磁场的ON和OFF之间切换; 身体姿势判别单元，其识别被检体的身体姿势; 从准备的身体姿势模型中提取根据被检体的身体姿势的身体姿势模型的模型提取单元，从准备的器官模型中提取根据对象的身体姿势的器官模型; 以及显示控制单元，被配置为：当所述磁场接通时，根据所述被检体的身体姿势将所述器官模型叠加在所述提取的身体姿势模型上; 并显示提取的身体姿势模型，并且当磁场关闭时隐藏器官模型。

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