公开(公告)号：WO1995000858A1

公开(公告)日：1995-01-05

申请号：PCT/US1994006768

申请日：1994-06-21

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BIOMAGNETIC TECHNOLOGIES, INC. ,  BUCHANAN, D., Scott ,  WARDEN, Laurence ,  RILEY, Scott, W. ,  JOHNSON, Richard, T. ,  BRIMHALL, K., Randy ,  ESSER, Keith, A.

IPC: G01R33/02

CPC classification number: G01R33/0358 ,  A61B5/0046 ,  A61B5/04005

Abstract: A biomagnetometer includes a magnetic field sensor including a magnetic field pickup coil (210) and a detector (211) of small electrical currents flowing within the pickup coil. A vacuum-tight enclosure (212) surrounds the sensor. The enclosure has a concavely upwardly curved first wall, with the magnetic field pickup coil located adjacent to the first wall. A vented reservoir (220) of liquefied gas is located within the enclosure, and a solid thermal conductor (218) extends from the sensor. There is a vacuum-tight thermal feedthrough by which the solid thermal conductor passes between the interior and the exterior of the enclosure. Electronic circuitry for filtering and amplifying the signals of the detector is also provided. Such a biomagnetometer is placed below the body of a reclining subject, and a second portion of the biomagnetometer can be placed above the body. In one form, the enclosures are shaped to form a cavity that receives the head of the subject therein, to achieve full head coverage of the pickup coils in the biomagnetometer.

Abstract translation: 生物仪表包括磁场传感器，其包括在拾取线圈内流动的小电流的磁场拾取线圈（210）和检测器（211）。 真空密封外壳（212）围绕传感器。 外壳具有凹入向上弯曲的第一壁，磁场拾取线圈位于第一壁附近。 液体气体的排放的储存器（220）位于外壳内，并且固体导热体（218）从传感器延伸。 存在真空密封的馈热通道，固体热导体通过其进入外壳的内部和外部之间。 还提供了用于滤波和放大检测器的信号的电子电路。 这样的生物计量器放置在倾斜对象的身体下方，并且生物计量器的第二部分可以放置在身体上方。 在一种形式中，外壳被成形为形成容纳主体的头部的空腔，以实现生物计量器中的拾取线圈的全头覆盖。

公开(公告)号：EP0705440A1

公开(公告)日：1996-04-10

申请号：EP94921304.0

申请日：1994-06-21

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BUCHANAN, D., Scott ,  WARDEN, Laurence ,  RILEY, Scott, W. ,  JOHNSON, Richard, T. ,  BRIMHALL, K., Randy ,  ESSER, Keith, A.

IPC: A61B5 ,  G01R33

CPC classification number: G01R33/0358 ,  A61B5/0046 ,  A61B5/04005

Abstract: A biomagnetometer includes a magnetic field sensor including a magnetic field pickup coil (210) and a detector (211) of small electrical currents flowing within the pickup coil. A vacuum-tight enclosure (212) surrounds the sensor. The enclosure has a concavely upwardly curved first wall, with the magnetic field pickup coil located adjacent to the first wall. A vented reservoir (220) of liquefied gas is located within the enclosure, and a solid thermal conductor (218) extends from the sensor. There is a vacuum-tight thermal feedthrough by which the solid thermal conductor passes between the interior and the exterior of the enclosure. Electronic circuitry for filtering and amplifying the signals of the detector is also provided. Such a biomagnetometer is placed below the body of a reclining subject, and a second portion of the biomagnetometer can be placed above the body. In one form, the enclosures are shaped to form a cavity that receives the head of the subject therein, to achieve full head coverage of the pickup coils in the biomagnetometer.

Abstract translation: 生物磁力计包括磁场传感器，该磁场传感器包括在拾取线圈内流动的小电流的磁场拾取线圈（210）和检测器（211）。 真空密封的外壳（212）围绕传感器。 外壳具有向上弯曲的凹形第一壁，其中磁场接收线圈位于第一壁附近。 液化气体的通风储器（220）位于外壳内，并且固体热导体（218）从传感器延伸。 有一个真空密封的热馈通，固体热导体可以通过外壳的内部和外部。 还提供了用于过滤和放大检测器信号的电子电路。 这样的生物磁性计被放置在躺卧对象的身体下方，并且生物磁性计的第二部分可以放置在身体上方。 在一种形式中，外壳被成形为形成腔体，该腔体接收其中的对象的头部，以实现生物磁力计中拾取线圈的完全头部覆盖。

公开(公告)号：EP0705440B1

公开(公告)日：2002-02-20

申请号：EP94921304.5

申请日：1994-06-21

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BUCHANAN, D., Scott ,  WARDEN, Laurence ,  RILEY, Scott, W. ,  JOHNSON, Richard, T. ,  BRIMHALL, K., Randy ,  ESSER, Keith, A.

IPC: G01R33/02

CPC classification number: G01R33/0358 ,  A61B5/0046 ,  A61B5/04005

Abstract: A biomagnetometer includes a magnetic field sensor including a magnetic field pickup coil (210) and a detector (211) of small electrical currents flowing within the pickup coil. A vacuum-tight enclosure (212) surrounds the sensor. The enclosure has a concavely upwardly curved first wall, with the magnetic field pickup coil located adjacent to the first wall. A vented reservoir (220) of liquefied gas is located within the enclosure, and a solid thermal conductor (218) extends from the sensor. There is a vacuum-tight thermal feedthrough by which the solid thermal conductor passes between the interior and the exterior of the enclosure. Electronic circuitry for filtering and amplifying the signals of the detector is also provided. Such a biomagnetometer is placed below the body of a reclining subject, and a second portion of the biomagnetometer can be placed above the body. In one form, the enclosures are shaped to form a cavity that receives the head of the subject therein, to achieve full head coverage of the pickup coils in the biomagnetometer.