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1. 发明专利

JP2016105803A インピーダンスおよび磁界の測定を使用するカテーテルのナビゲーション有权
标题翻译：导线使用阻抗和磁场测量的导航
公开(公告)号：JP2016105803A
公开(公告)日：2016-06-16
申请号：JP2016014916
申请日：2016-01-28
申请人：セント・ジュード・メディカル・エイトリアル・フィブリレーション・ディヴィジョン・インコーポレーテッド
发明人：オルソンエリックエス , カルボネラカルロス , コリヤークレフエー. , スタークスダニエルアール.
IPC分类号： G01R33/02 , G01R33/24 , A61B5/0402 , A61M25/095 , A61N1/08 , A61B5/05
CPC分类号： A61B5/063 , A61B34/20 , A61B5/062 , A61B2034/2051 , A61B2034/2053 , A61B2090/0818 , A61B5/0538 , A61B5/6852 , A61B5/7207
摘要：【課題】電気インピーダンスベースの測位システムの利点(例えば、複数のカテーテル上に複数のセンサーを測位する)と、磁界ベースの座標系の利点(例えば、患者の解剖学的構造からの独立性、正規直交性)とを併せ持つシステムを提供する。【解決手段】第1の測位システム12の第1の座標系14を第2の測位システム16の第2の座標系18内に位置合わせすることによって測位システム10を動作させる方法は、第1の非正規直交座標系を第2の正規直交座標系内で位置合わせするように構成されている補間関数を決定することを含み、補間関数に従って、第1の座標系14内で第1の座標を取得することと、第2の座標系18内で対応する第2の座標を決定することとを繰り返し行うことをさらに含む。【選択図】図1
摘要翻译：要解决的问题：提供一种将基于电阻抗的定位系统（例如，将多个导管上的多个传感器定位）的优点与基于磁场的坐标系的优点（例如，独立于患者解剖结构和正交性）解决方案：通过将第一定位系统12的第一坐标系统14登记在第二定位系统16的第二坐标系18中来操作定位系统10的方法包括确定内插函数，其被配置为将第一定位系统第二个正交坐标系中的正交坐标系。该方法还包括在第一坐标系统14中重复获得第一坐标，并根据插值函数确定第二坐标系18中的对应的第二坐标。图1

2. 发明专利

JP2016045001A 磁場検出方法有权
标题翻译：磁场检测方法
公开(公告)号：JP2016045001A
公开(公告)日：2016-04-04
申请号：JP2014167363
申请日：2014-08-20
申请人：日本電信電話株式会社
发明人：松崎雄一郎 , ウィリアムジョーンムンロ , 山口浩司 , 齊藤志郎 , ポールノット , 田中亨
IPC分类号： G01R33/24
摘要：【課題】より容易に、標準量子限界を超える精度で磁場が検出できるようにする。【解決手段】ステップS101で、複数の(N個の)メモリ量子ビットと制御量子ビットとを重ね合わせの状態とし、ステップS102で、上記結合系に対し、メモリ量子ビットの共振周波数より決定される(ω m −2g)の周波数のマイクロ波を、λ’のラビ周波数でt’=π/λ’の時間印加し、ステップS103で、結合系に対し、制御量子ビットの共振周波数より決定される(ω c −2Ng)の周波数のマイクロ波を、λ”のラビ周波数でt”=π/λ”の時間印加し、ステップS104で、メモリ量子ビットを測定対象の磁場に相互作用させる。【選択図】図1
摘要翻译：要解决的问题：使得可以更容易地并且具有超过标准量程限制的精度的磁场检测。解决方案：在步骤S101中，将多个（N）个存储量子比特和控制量子比特置于相互叠加; 在步骤S102中，在Rabi频率为λ'的时间周期为t'=π/λ'的由存储量子比特的共振频率确定的频率（ω-2g）的微波; 在步骤S103中，在Rabi频率λ“的时间周期为t”=π/λ“的由控制量子比特的耦合系统的共振频率确定的频率的（ω-2 Ng）的微波; 并且在步骤S104中，存储量子比特在测量对象的磁场中相互作用。选择的图示：图1

3. 发明专利

JP2002136492A INSTRUMENT FOR MEASURING MAGNETIC FIELD 失效
公开(公告)号：JP2002136492A
公开(公告)日：2002-05-14
申请号：JP2000334921
申请日：2000-10-30
申请人： HITACHI LTD
发明人： SUZUKI DAISUKE , NINOMIYA ATSUSHI , MIYASHITA TAKESHI , KANDORI AKIHIKO , TSUKADA KEIJI , YOKOZAWA KOICHI
IPC分类号： G01R33/035 , A61B5/05 , G01R33/24 , H01L39/04 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a magnetic field measuring instrument with high performance through the use of sheets with high magnetic permeability. SOLUTION: The instrument is provided with a magnetic field shielding device 40 where a plurality of sheets having high magnetic permeability are arranged by partial superimposition on a plurality of non-magnetic cylindrical members which is arranged by concentrically enclosing a first direction axis to have a hollow part, where the most inner cylindrical member is provided with first and second openings 41 and 42 at one end and the other end in the first direction and with a third opening being put through the cylindrical members in a vertical direction with respect to the first direction axis and also by which a component in the vertical direction concerning the first direction in an extraneous magnetic field is shielded in the internal space of the most inner cylindrical member. The instrument is also provided with loading devices 20, 21 and 22 arranged in the inner space to hold a living body by permitting a body axial direction to be in nearly parallel to the first direction axis and a cryostat 50 which is inserted to the third opening, whose bottom surface is disposed in the inner space and by which low temperature is kept in pluralities of SQUID flux meters. The SQUID flux meters 50 detects the component in the vertical direction concerning the first direction of the magnetic field generated from the living body. Thus, the light and small magnetic field measuring instrument is provided at a low cost.

4. 发明专利

JP3144045B2 失效
公开(公告)号：JP3144045B2
公开(公告)日：2001-03-07
申请号：JP11275592
申请日：1992-05-01
IPC分类号： A61B5/05 , G01R33/24

5. 发明专利

JP2566000B2 失效
公开(公告)号：JP2566000B2
公开(公告)日：1996-12-18
申请号：JP1359889
申请日：1989-01-23
申请人： NIPPON ELECTRON OPTICS LAB
发明人： MIZUTA YUKIO
IPC分类号： G01N24/10 , G01R33/24 , G01R33/60

6. 发明专利

JPH0810250B2 失效
公开(公告)号：JPH0810250B2
公开(公告)日：1996-01-31
申请号：JP13717591
申请日：1991-05-13
IPC分类号： A61B5/05 , G01R33/025 , G01R33/035 , G01R33/20 , G01R33/24 , G01R33/28 , G01R33/32 , G01R33/421 , G05F7/00 , H01L39/22

7. 发明专利

JPH07299049A METHOD TO PASSIVELY INSTALL SHIM IN HOLLOW CYLINDRICAL MAGNET 失效
公开(公告)号：JPH07299049A
公开(公告)日：1995-11-14
申请号：JP4320395
申请日：1995-03-02
申请人： APPLIED SUPERCONETICS INC
发明人： BURUUSU SHII BURENEMAN , IEN FUWA SU , JIYANGU YU SU
IPC分类号： A61B5/055 , G01R33/24 , G01R33/3873
摘要： PURPOSE: To enable heterogeneity of a main magnetic field in an MRI magnet to be minimum by correctly positioning a ferromagnetic shim against its magnet using such a sequence including a process that the shim is installed in a specified shape designed to make a specified contributory amount for the heterogeneity to be minimum. CONSTITUTION: In the case that such a shim that a heterogeneity of a magnet field in a designated spherical void(DSV) 14 is installed correctly in the inside of a central bore 12 having a cylindrical surface of a main magnet 11, firstly, its magnetic field is measured by a magnetic field sensor 20 in a plurality of designated points in the inside of a DSV 14. Next, in order to make the detected heterogeneity to be a model in the magnetic field, a polynominal having a plurality of harmonic terms is operated. A desired value capable of reducing the heterogeneity of the magnetic field is also determined and a plurality of harmonic terms are separated so that the change of magnetic field becomes a plural number of groups only in a specified direction. Each group is analyzed separately and a shim array is designed to make the harmonic terms in the designated groups minimum respectively.

8. 发明专利

JPH0616765B2 失效
公开(公告)号：JPH0616765B2
公开(公告)日：1994-03-09
申请号：JP21728690
申请日：1990-08-20
申请人： GEN ELECTRIC
发明人： JOSEFU KENESU MEIA , GARII HARORUDO GUROOBAA
IPC分类号： A61B5/055 , G01R33/24 , G01R33/32 , G01R33/3415 , G01R33/58 , G01R33/28

9. 发明专利

JPH05288820A 失效
公开(公告)号：JPH05288820A
公开(公告)日：1993-11-05
申请号：JP17036491
申请日：1991-06-17
申请人： COMMISSARIAT ENERGIE ATOMIQUE
发明人： DENISU DEYURE , MARUKU BERANJIE
IPC分类号： G01R33/24 , G01N24/08
摘要： PURPOSE: To obtain a magnetometer having high resolution in which drift due to time or temperature is eliminated by arranging a coil for exciting resonance of spin and detecting the excited resonance, and a coil causing magnetic polarization in the vicinity of a sample made of a substance having resonant spin. CONSTITUTION: A coil 4 for exciting resonance of spin and detecting the excited resonance, and a coil 32 serving to generate a magnetic polarization field Hb along a predetermined direction and to compensate for a field Hlex are arranged in the vicinity of a sample 2 made of a substance having resonant spin. The polarization field Hb in the direction D is generated by the coil 32 and the axis thereof is perpendicular to the axis of the coil 4. The magnetometer comprises a phase shifter 34 and a high frequency signal is fed from a high frequency generator 6 to a balance mixer 18. Output voltage of a low-pass filter 20 is thereby varied and a field being applied to the sample is varied correspondingly. An electronic unit 36, a sample and hold circuit 38 and an integrator 40 are connected in the downstream of the filter 20 and a current is fed therefrom to the coil 32.

10. 发明专利

JPH05196652A CURRENT SENSOR USING RESONANCE INDICATING MEGNETOMETER 失效
公开(公告)号：JPH05196652A
公开(公告)日：1993-08-06
申请号：JP17885192
申请日：1992-06-15
申请人： COMMISSARIAT ENERGIE ATOMIQUE
发明人： MAAKU BERANJIEERU , DENISU JIYUURU
IPC分类号： G01N24/00 , G01R15/18 , G01R15/20 , G01R19/00 , G01R33/24
摘要： PURPOSE: To conduct measuring of a random strength of a current with a high operating characteristic and a high accuracy by exciting a resonance by a first magnetic means disposed adjacent to a sample, detecting the excited resonance and making a voltage expression thereof. CONSTITUTION: A current sensor comprises a magnetic circuit CM having a gap ER and a resonance indicating magnetometer MD which is provided with a coil 4 which encircles a sample and the sample 2 which is made of a material having an electrically resonance spin. The sample 2 is disposed in the gap ER and is exposed to a polarization magnetic field Hb which is parallel to the magnetic feed Hlex A high frequency oscillator excites a resonance together with a measuring bridge 8 and the coil 4. A high frequency signal obtained from an output of the bridge 8 is amplified by an amplifier 16 and the reference signal is inputted to a balanced mixer 18. An output voltage V2 of an integrator 31 is proportional to a current to be measured. An auxiliary magnetic field generated by a measured current generates an error signal and this error signal is superposed to a resonance curve so as to cancel a magnetic field generated by the measured current.

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