公开(公告)号：US20100073185A1

公开(公告)日：2010-03-25

申请号：US12443605

申请日：2007-11-27

申请人： Akio Uchiyama ,  Ryoji Sato ,  Atsushi Kimura

发明人： Akio Uchiyama ,  Ryoji Sato ,  Atsushi Kimura

IPC分类号： G08B21/00

CPC分类号： G01B7/003 ,  A61B1/00158 ,  A61B1/041 ,  A61B5/06 ,  A61B5/062 ,  A61B5/7232 ,  A61B5/7257 ,  A61B34/73 ,  G01D5/2086

摘要： There is provided a position detection system (1) including a first marker (4) that produces a first alternating magnetic field having a first position-calculating frequency by means of an external power supply; a second marker (3) including a magnetic induction coil (5) having a resonance frequency equal to the position-calculating frequency; a magnetic-field detection section (13) that is disposed outside a working region of the second marker (3) and that detects a magnetic field at the first position-calculating frequency; an extracting section (24) that extracts, from the detected magnetic field, a first detection-magnetic-field component having the first position-calculating frequency and having the same phase as the phase of the first alternating magnetic field; and a position/orientation analyzing section (22) that calculates at least one of the position and the orientation of the first marker (4) based on the intensity of the extracted first detection-magnetic-field component.

摘要翻译： 提供了一种位置检测系统（1），包括：通过外部电源产生具有第一位置计算频率的第一交变磁场的第一标记（4）; 包括具有等于位置计算频率的共振频率的磁感应线圈（5）的第二标记（3） 磁场检测部（13），其设置在所述第二标记（3）的工作区域的外侧，并且检测所述第一位置算出用频率的磁场; 提取部（24），其从所述检测的磁场中提取具有与所述第一交变磁场的相位相同的所述第一位置算出用频率的第一检测磁场成分; 以及基于所提取的第一检测磁场分量的强度来计算第一标记（4）的位置和取向中的至少一个的位置/取向分析部（22）。

公开(公告)号：US20090295386A1

公开(公告)日：2009-12-03

申请号：US12088985

申请日：2006-10-06

申请人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

发明人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

IPC分类号： G01R33/44 ,  G01B7/14

CPC分类号： A61B1/041 ,  A61B1/00158 ,  A61B5/062 ,  A61B5/7257 ,  A61B34/73 ,  A61B2034/732

摘要： A position detection system that does not require calibration measurement to be performed in advance and reduces the work required for detecting a position and so on is provided. The provided position detection system includes a device having a magnetic inductance coil; a drive coil that has a position-calculating frequency near a resonant frequency of the magnetic inductance coil and generates an alternating magnetic field which acts on the magnetic inductance coil; a plurality of magnetic-field sensors that is disposed outside the operating range of the device and detects an induced magnetic field generated by the magnetic inductance coil; amplitude-component detection section for detecting amplitude components whose phase is substantially orthogonal to the alternating magnetic field from the outputs of the magnetic sensors acquired by the plurality of magnetic sensors; and position analyzing section for calculating at least one of a position and an orientation of the device on the basis of the amplitude components.

摘要翻译： 提供了一种位置检测系统，其不需要预先执行校准测量并且减少检测位置等所需的工作。 提供的位置检测系统包括具有磁感线圈的装置; 驱动线圈，其具有靠近所述磁感应线圈的共振频率的位置算出频率，并产生作用在所述磁感应线圈上的交变磁场; 多个磁场传感器，其设置在所述装置的工作范围之外，并检测由所述磁感应线圈产生的感应磁场; 幅度分量检测部，用于从所述多个磁传感器获取的所述磁传感器的输出中检测与所述交变磁场大致正交的振幅分量; 以及位置分析部分，用于基于振幅分量来计算装置的位置和取向中的至少一个。

公开(公告)号：US20100219825A1

公开(公告)日：2010-09-02

申请号：US12159189

申请日：2006-12-25

申请人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

发明人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

IPC分类号： G01R33/44

CPC分类号： A61B5/073 ,  A61B1/00158 ,  A61B1/041 ,  A61B1/05 ,  A61B5/061 ,  A61B5/7232 ,  A61B34/20 ,  A61B90/361 ,  A61B2034/2051 ,  A61B2090/364 ,  A61B2090/3954

摘要： A position detection system and a position detection method in which the accuracy of position measurement of a device is not decreased after a change in the resonant frequency of a magnetic induction coil are provided. The position detection system includes a device having a magnetic induction coil; a driving coil that generates an alternating magnetic field, to be applied to the magnetic induction coil, having a position-calculating frequency in the vicinity of a resonant frequency of the magnetic induction coil; a plurality of magnetic sensors that detects an induced magnetic field generated by the magnetic induction coil when the alternating magnetic field is applied thereto; a measurement-reference-value calculating section (50d) that determines a measurement reference value at the position-calculating frequency, based on an output of the magnetic sensors when only the alternating magnetic field is applied thereto; a position-analyzing section (50e) that calculates at least one of the position and orientation of the device, based on a difference measurement value that is a difference between an output of the magnetic sensors when the alternating magnetic field and the induced magnetic field are applied thereto and the measurement reference value; and a redetermining section (50b) that redetermines the position-calculating frequency at a predetermined timing.

摘要翻译： 提供了磁感应线圈的谐振频率的变化之后，不降低器件的位置测量精度的位置检测系统和位置检测方法。 位置检测系统包括具有磁感应线圈的装置; 驱动线圈，其产生施加到所述磁感应线圈的交变磁场，所述交变磁场具有位于所述磁感应线圈的共振频率附近的位置算出频率; 多个磁传感器，其在施加交变磁场时检测由所述磁感应线圈产生的感应磁场; 测量基准值计算部（50d），其仅当施加了交变磁场时，基于磁传感器的输出来确定位置算出频率下的测量基准值; 基于作为交变磁场和感应磁场的磁传感器的输出之间的差的差测量值来计算装置的位置和取向中的至少一个的位置分析部（50e） 施加到其上并测量参考值; 以及重新确定部（50b），其在预定的定时重新确定位置计算频率。

公开(公告)号：US08260398B2

公开(公告)日：2012-09-04

申请号：US12443605

申请日：2007-11-27

申请人： Akio Uchiyama ,  Ryoji Sato ,  Atsushi Kimura

发明人： Akio Uchiyama ,  Ryoji Sato ,  Atsushi Kimura

IPC分类号： A61B5/05

CPC分类号： G01B7/003 ,  A61B1/00158 ,  A61B1/041 ,  A61B5/06 ,  A61B5/062 ,  A61B5/7232 ,  A61B5/7257 ,  A61B34/73 ,  G01D5/2086

摘要： There is provided a position detection system (1) including a first marker (4) that produces a first alternating magnetic field having a first position-calculating frequency by means of an external power supply; a second marker (3) including a magnetic induction coil (5) having a resonance frequency equal to the position-calculating frequency; a magnetic-field detection section (13) that is disposed outside a working region of the second marker (3) and that detects a magnetic field at the first position-calculating frequency; an extracting section (24) that extracts, from the detected magnetic field, a first detection-magnetic-field component having the first position-calculating frequency and having the same phase as the phase of the first alternating magnetic field; and a position/orientation analyzing section (22) that calculates at least one of the position and the orientation of the first marker (4) based on the intensity of the extracted first detection-magnetic-field component.

摘要翻译： 提供了一种位置检测系统（1），包括：通过外部电源产生具有第一位置计算频率的第一交变磁场的第一标记（4）; 包括具有等于位置计算频率的共振频率的磁感应线圈（5）的第二标记（3） 磁场检测部（13），其设置在所述第二标记（3）的工作区域的外侧，并且检测所述第一位置算出用频率的磁场; 提取部（24），其从所述检测的磁场中提取具有与所述第一交变磁场的相位相同的所述第一位置算出用频率的第一检测磁场成分; 以及基于所提取的第一检测磁场分量的强度来计算第一标记（4）的位置和取向中的至少一个的位置/取向分析部（22）。

公开(公告)号：US08164334B2

公开(公告)日：2012-04-24

申请号：US12088985

申请日：2006-10-06

申请人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

发明人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

IPC分类号： G01V3/00

CPC分类号： A61B1/041 ,  A61B1/00158 ,  A61B5/062 ,  A61B5/7257 ,  A61B34/73 ,  A61B2034/732

摘要： A position detection system that does not require calibration measurement to be performed in advance and reduces the work required for detecting a position and so on is provided. The provided position detection system includes a device having a magnetic inductance coil; a drive coil that has a position-calculating frequency near a resonant frequency of the magnetic inductance coil and generates an alternating magnetic field which acts on the magnetic inductance coil; a plurality of magnetic-field sensors that is disposed outside the operating range of the device and detects an induced magnetic field generated by the magnetic inductance coil; amplitude-component detection section for detecting amplitude components whose phase is substantially orthogonal to the alternating magnetic field from the outputs of the magnetic sensors acquired by the plurality of magnetic sensors; and position analyzing section for calculating at least one of a position and an orientation of the device on the basis of the amplitude components.

摘要翻译： 提供了一种位置检测系统，其不需要预先执行校准测量并且减少检测位置等所需的工作。 提供的位置检测系统包括具有磁感线圈的装置; 驱动线圈，其具有靠近所述磁感应线圈的共振频率的位置算出频率，并产生作用在所述磁感应线圈上的交变磁场; 多个磁场传感器，其设置在所述装置的工作范围之外，并检测由所述磁感应线圈产生的感应磁场; 幅度分量检测部，用于从所述多个磁传感器获取的所述磁传感器的输出中检测与所述交变磁场大致正交的相位的振幅分量; 以及位置分析部分，用于基于振幅分量来计算装置的位置和取向中的至少一个。

公开(公告)号：US20070185398A1

公开(公告)日：2007-08-09

申请号：US11633282

申请日：2006-12-04

申请人： Atsushi Kimura ,  Akio Uchiyama ,  Ryoji Sato

发明人： Atsushi Kimura ,  Akio Uchiyama ,  Ryoji Sato

IPC分类号： A61B5/05

CPC分类号： A61B5/06 ,  A61B1/00158 ,  A61B1/041 ,  A61B5/062

摘要： A medical-device magnetic guiding position detecting system that can prevent a decrease in the strength of a position detecting magnetic field in an operating area of a medical device is provided. The medical-device magnetic guiding position detecting system includes a medical device that is disposed in the body of a subject and that includes at least one magnet and a circuit including an internal coil, a first magnetic field generating unit for generating a first magnetic field in the operating area of the medical device, position detecting means for detecting an induction magnetic field induced in the internal coil due to the first magnetic field, and at least one pair of opposing coils for generating a second magnetic field that acts on the at least one magnet. The opposing coils forming each of the at least one pair are independently driven.

摘要翻译： 提供一种可以防止医疗装置的操作区域中的位置检测磁场的强度降低的医疗装置导磁位置检测系统。 医疗器械磁性引导位置检测系统包括：医疗装置，其设置在被检体的主体内，并且包括至少一个磁体和包括内部线圈的电路;第一磁场产生部，其用于产生第一磁场; 医疗装置的操作区域，用于检测由于第一磁场而在内部线圈中感应的感应磁场的位置检测装置，以及用于产生作用于至少一个的第二磁场的至少一对相对的线圈 磁铁。 形成至少一对中的每一个的相对线圈被独立地驱动。

公开(公告)号：US08217645B2

公开(公告)日：2012-07-10

申请号：US12882336

申请日：2010-09-15

申请人： Takahiro Iida ,  Atsushi Chiba ,  Atsushi Kimura ,  Akio Uchiyama

发明人： Takahiro Iida ,  Atsushi Chiba ,  Atsushi Kimura ,  Akio Uchiyama

IPC分类号： G01B7/14

CPC分类号： A61B1/041 ,  A61B1/00158 ,  A61B5/062 ,  A61B5/073 ,  A61B5/7257

摘要： A position detecting system including: a detected object disposed in a space; and an external device disposed outside the space, wherein the detected object includes a resonant circuit, and the external device includes at least two drive coils; at least two drive-signal input units; at least one sense coil; a signal adjustment unit that adjusts a phase or amplitude of a drive signal using an evaluation function for evaluating the phase or the amplitude, based on an intensity of the magnetic field; and a position deriving unit that derives a position of the detected object based on a magnetic field detected by the sense coil, wherein the evaluation function derives a solution by adding or multiplying a weight set according to a positional relation between each drive coil and each sense coil to or by an intensity of a magnetic field detected by the sense coils.

摘要翻译： 一种位置检测系统，包括：设置在空间中的检测对象; 以及设置在所述空间外部的外部装置，其中所述检测对象包括谐振电路，并且所述外部装置包括至少两个驱动线圈; 至少两个驱动信号输入单元; 至少一个感测线圈; 信号调整单元，其基于磁场的强度，使用用于评价相位或幅度的评价函数来调整驱动信号的相位或幅度; 以及位置导出单元，其基于由所述感测线圈检测的磁场导出所述检测对象的位置，其中，所述评估函数通过将根据每个驱动线圈和每个感测之间的位置关系的权重集合相加或相乘来得出解 线圈到或由感测线圈检测到的磁场强度。

公开(公告)号：US20100049033A1

公开(公告)日：2010-02-25

申请号：US12514401

申请日：2007-11-12

申请人： Hironao Kawano ,  Atsushi Kimura ,  Akio Uchiyama ,  Atsushi Chiba

发明人： Hironao Kawano ,  Atsushi Kimura ,  Akio Uchiyama ,  Atsushi Chiba

IPC分类号： A61B5/05 ,  A61B1/00

CPC分类号： A61B1/00158 ,  A61B1/00016 ,  A61B1/041 ,  A61B1/042 ,  A61B5/06 ,  A61B5/066 ,  A61B34/73 ,  A61B90/39 ,  A61B2090/3958

摘要： A medical device position detection system and a position detection method of a medical device guidance system, which are capable of detecting a direction of the medical device accurately, are provided. Included are a medical device introduced into a subject's body; a magnetic field response part that is disposed in the medical device, responds to a magnetic field by virtue of possessing a magnetization direction, and guides the medical device; a magnetic field generation part forming the magnetic field within the subject's body; a direction detection magnetic field control part generating a direction detection magnetic field from the magnetic field generation part for detecting the direction of the medical device; a response detection part detecting a response of the magnetic field response part due to the direction detection magnetic field; and a direction calculating part calculating the direction of the medical device according to the direction of the direction detection magnetic field and a detection result of the response detection part.

摘要翻译： 提供了能够精确地检测医疗装置的方向的医疗装置引导系统的医疗装置位置检测系统和位置检测方法。 包括被引入主体身体的医疗器械; 设置在医疗装置中的磁场响应部通过具有磁化方向对磁场进行响应，并引导医疗装置; 形成被检者体内的磁场的磁场产生部; 方向检测用磁场控制部，其从所述磁场产生部生成用于检测所述医疗装置的方向的方向检测用磁场; 响应检测部分，检测由于方向检测磁场引起的磁场响应部分的响应; 以及方向计算部，其根据方向检测磁场的方向和响应检测部的检测结果来计算医疗装置的方向。

公开(公告)号：US08214017B2

公开(公告)日：2012-07-03

申请号：US12400240

申请日：2009-03-09

申请人： Ryoji Sato ,  Atsushi Kimura ,  Akio Uchiyama

发明人： Ryoji Sato ,  Atsushi Kimura ,  Akio Uchiyama

IPC分类号： A61B5/05

CPC分类号： A61B1/041 ,  A61B1/0005 ,  A61B1/00158 ,  A61B2034/732

摘要： A capsule guiding system includes a magnetic guiding unit, a displaying unit, an operation unit, and a control unit. The magnetic guiding unit guides, using magnetic force, a capsule-shaped medical apparatus introduced inside a subject. The displaying unit displays an image of the subject and an image of the capsule-shaped medical apparatus as an overlapped image, and changes relative position and relative direction between the two images as the capsule-shaped medical apparatus is guided by the magnetic guiding unit. The operation unit inputs coordinate information which specifies movement direction of the capsule-shaped medical apparatus. The control unit adjusts coordinate system of the displaying unit and coordinate system of the operation unit to be consistent with each other, transforms the coordinate information input from the operation unit into the coordinate system of the magnetic guiding unit, and controls the guiding of the capsule-shaped medical apparatus based on the transformed coordinate information.

摘要翻译： 胶囊引导系统包括磁引导单元，显示单元，操作单元和控制单元。 磁性引导单元使用磁力引导导入被检体内的胶囊型医疗装置。 显示单元显示被检体的图像和胶囊型医疗装置的图像作为重叠图像，并且当胶囊型医疗装置被磁性引导单元引导时，改变两个图像之间的相对位置和相对方向。 操作单元输入指定胶囊型医疗装置的移动方向的坐标信息。 控制单元将显示单元的坐标系和操作单元的坐标系相互调整，将从操作单元输入的坐标信息变换为磁导引单元的坐标系，并控制胶囊的引导 基于变换的坐标信息的医疗器械。

公开(公告)号：US08032320B2

公开(公告)日：2011-10-04

申请号：US12159189

申请日：2006-12-25

申请人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

发明人： Ryoji Sato ,  Akio Uchiyama ,  Atsushi Kimura

IPC分类号： G01C17/38

CPC分类号： A61B5/073 ,  A61B1/00158 ,  A61B1/041 ,  A61B1/05 ,  A61B5/061 ,  A61B5/7232 ,  A61B34/20 ,  A61B90/361 ,  A61B2034/2051 ,  A61B2090/364 ,  A61B2090/3954

摘要： A position detection system and method in which the accuracy of position measurement of a device is not decreased with changes in the resonant frequency. The system includes a device having a magnetic induction coil; a driving coil generating an alternating magnetic field, applied to the magnetic induction coil, having a position-calculating frequency in the vicinity of a resonant frequency of the magnetic induction coil; a plurality of magnetic sensors that detects an induced magnetic field generated by the magnetic induction coil; a measurement-reference-value calculating section determining a measurement reference value at the position-calculating frequency when only the alternating magnetic field is applied; a position-analyzing section calculating at least one of the position and orientation of the device and the measurement reference value when the alternating magnetic field and the induced magnetic field are applied; and a redetermining section redetermining the position-calculating frequency at a predetermined timing.

摘要翻译： 一种位置检测系统和方法，其中器件的位置测量精度不会随着谐振频率的变化而减小。 该系统包括具有磁感应线圈的装置; 产生施加到磁感应线圈的交变磁场的驱动线圈，具有在磁感应线圈的共振频率附近的位置算出频率; 多个磁传感器，其检测由所述磁感应线圈产生的感应磁场; 测量基准值计算部，其仅在施加交变磁场时决定位置算出用频率下的测量基准值; 当施加交变磁场和感应磁场时，位置分析部分计算装置的位置和取向和测量参考值中的至少一个; 以及重新确定部分，在预定定时重新确定位置计算频率。