公开(公告)号：WO1994002864A1

公开(公告)日：1994-02-03

申请号：PCT/US1993006766

申请日：1993-07-21

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BIOMAGNETIC TECHNOLOGIES, INC. ,  WIKSWO, John, P., Jr. ,  BLACK, William, C., Jr. ,  HIRSCHKOFF, Eugene, C. ,  MARSDEN, James, R. ,  PAULSON, Douglas, N.

IPC: G01R33/035

CPC classification number: G01R33/0358 ,  Y10S505/846

Abstract: A magnetometer includes a support having two support surfaces that intersect each other along an intersection line that is perpendicular to a reference axis of the magnetometer. The support surfaces are preferably perpendicular to each other and are each inclined at an angle of 45 degrees to the reference axis. A planar sensor/detector array is mounted on each support surface. Each array includes at least two pairs of magnetic field sensors and associated SQUID detectors arranged such that the magnetic field sensors lie on a line that is parallel to the intersection line of the two support surfaces. The magnetometer can be used adjacent to a surface to measure components and spatial variation of the magnetic field near the surface, with the measured components resolved into the magnetic field vectors parallel to and perpendicular to the surface.

Abstract translation: 磁力计包括具有沿垂直于磁力计的参考轴的交叉线彼此相交的两个支撑表面的支撑件。 支撑表面优选地彼此垂直并且各自相对于参考轴线以45度的角度倾斜。 平面传感器/检测器阵列安装在每个支撑表面上。 每个阵列包括至少两对磁场传感器和相关联的SQUID检测器，其布置成使得磁场传感器位于平行于两个支撑表面的交线的线上。 磁力计可以与表面相邻使用，以测量表面附近的磁场的分量和空间变化，测量的分量被分解成平行于和垂直于表面的磁场矢量。

公开(公告)号：WO1992012436A1

公开(公告)日：1992-07-23

申请号：PCT/US1991009194

申请日：1991-12-20

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BIOMAGNETIC TECHNOLOGIES, INC. ,  MARSDEN, James, R.

IPC: G01R33/035

CPC classification number: G01R33/0354 ,  H01L39/045 ,  Y10S505/846

Abstract: A SQUID package includes a layered SQUID base (24) and a SQUID (22) mounted upon the base. The SQUID base is formed as a first substrate layer (30) of an electrically insulating material, a shielding layer (28) of a material that is superconducting at the SQUID operating temperature overlying the first substrate layer, and a second substrate layer (26) of an electrically insulating material overlying the shielding layer. The shielding layer protects the SQUID from dc and ac interference such as magnetic and electrical fields, which would otherwise interfere with its operation.

公开(公告)号：WO1992001362A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004775

申请日：1991-07-10

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BIOMAGNETIC TECHNOLOGIES, INC. ,  VANESKY, Frank, W. ,  MARSDEN, James, R. ,  BUCHANAN, David, S.

IPC: H05K09/00

CPC classification number: H05K9/0001 ,  A61B5/0046 ,  A61B5/04005

Abstract: A shielded room (20) is constructed by mechanically attaching electrically conducting facing sheets (32) to the beams (30) of a frame in a manner such that there is a continuous electrical current flow path (44) between the facing sheets. The mechanical interfaces in the current flow path are sealed with a layer of copper or zinc (34) at the interface, the copper or zinc layer being preferably applied to one or both of the pieces that meet at the interface by a spraying technique such as plasma spraying. The copper or zinc connector seal ensures a continuous current flow path along the length of the mechanical interface, and prevents leakage of electromagnetic energy into the interior of the room. A magnetic field barrier such as sheets (48) of mu-metal can be supported on the assembled structure. The room (20) is readily assembled with mechanical fasteners (42), which permits it to be later disassembled and moved if necessary.

Abstract translation: 屏蔽室（20）通过将导电面对片材（32）机械地附接到框架的梁（30）而构造，使得在相对的片材之间存在连续的电流流动路径（44）。 电流流路中的机械界面在界面处用一层铜或锌（34）密封，铜或锌层优选地通过喷涂技术例如在界面处相遇的一个或两个片施加 等离子喷涂。 铜或锌连接器密封件确保沿着机械接口的长度的连续电流流动路径，并且防止电磁能量泄漏到房间的内部。 可以在组装的结构上支撑诸如mu金属片（48）的磁场屏障。 房间（20）容易地装配有机械紧固件（42），这允许其随后被拆卸和移动（如果需要的话）。

公开(公告)号：EP0595227B1

公开(公告)日：1998-01-21

申请号：EP93117218.3

申请日：1993-10-23

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： DiIorio, Mark S. ,  Hirschkoff, Eugene C. ,  Johnson, Richard T. ,  Buchanan, D. Scott ,  James, Stephen O. ,  Paulson, Douglas ,  Black, William C.

IPC: A61B5/04 ,  G01R33/035

CPC classification number: G01R33/035 ,  A61B5/04008 ,  G01R33/0358 ,  Y10S505/705 ,  Y10S505/846

公开(公告)号：EP0605896A1

公开(公告)日：1994-07-13

申请号：EP93121096.7

申请日：1993-12-30

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： Kynor, David

IPC: A61B5/0452 ,  G06F15/20

CPC classification number: A61B5/7264 ,  A61B5/04007

Abstract: The physiological behavior of the heart is analysed by measuring (62) and storing (64) a series of cardiac cycles, classifying the cardiac cycles into groups according to the degree of correlation with a template cardiac cycle (66), and associating the cardiac cycles of the groups with an origin location within the subject. The classifying operation preferably includes selecting a template cardiac cycle (66) against which other previously ungrouped cardiac cycles are to be correlated, performing a correlation analysis (68) of all previously ungrouped cardiac cycles with the template cardiac cycle using a selectable degree of correlation (70), and associating with the template cardiac cycle (66) all previously ungrouped cardiac cycles (72) having at least a preselected degree of correlation, to form a group. The classifying operation is iteratively repeated until all cardiac cycles are classified into appropriate groups.

公开(公告)号：EP0554880A2

公开(公告)日：1993-08-11

申请号：EP93101776.8

申请日：1993-02-05

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： Hirschkoff, Eugene C. ,  DiIorio, Mark S. ,  Johnson, Richard T. ,  Buchanan, D. Scott

IPC: G01R33/035

CPC classification number: G01R33/035 ,  A61B5/04008

Abstract: A magnetometer (20) comprises a magnetic field pickup coil (22) and a magnetic field detector (26) that receives electrical signals from the pickup coil (22) and produces an electrical detector output (28) responsive thereto. The pickup coil (22) and detector (26), which are preferably made of high temperature superconductors, are enclosed in an insulated enclosure (32) having no vacuum insulation structure. Preferably, the enclosure is made of a foamed polymer material such as styrofoam. A coolant is provided to the interior of the enclosure, to cool the pickup coil and detector to a temperature below their superconducting transition temperature. A number of such modular magnetometers may be connected together to form an array.

Abstract translation: 磁力计（20）包括磁场拾取线圈（22）和磁场检测器（26），磁场检测器接收来自拾取线圈（22）的电信号，并响应于此产生电检测器输出（28）。 优选由高温超导体制成的拾取线圈（22）和检测器（26）被封闭在没有真空绝缘结构的绝缘外壳（32）中。 优选地，外壳由发泡聚合物材料如聚苯乙烯泡沫塑料制成。 冷却剂被提供到外壳的内部，以将拾取线圈和检测器冷却到低于其超导转变温度的温度。 许多这样的模块化磁力计可以连接在一起以形成阵列。

公开(公告)号：EP0436711A4

公开(公告)日：1993-01-07

申请号：EP90912567

申请日：1990-07-30

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： HINSHAW, WALDO, S. ,  PAULSON, DOUGLAS, N. ,  BUCHANAN, DAVID, SCOTT ,  HIRSCHKOFF, EUGENE, C. ,  DIIORIO, MARK, S. ,  BLACK, WILLIAM, C., JR.

IPC: A61B5/04 ,  A61B5/05 ,  G01R33/035 ,  H01L39/22 ,  H01L39/04

CPC classification number: G01R33/0358 ,  A61B5/04008 ,  Y10S505/846

公开(公告)号：EP0517886A1

公开(公告)日：1992-12-16

申请号：EP92902714.0

申请日：1991-12-20

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： MARSDEN, James, R.

IPC: A61B5 ,  G01R33 ,  H01L39 ,  H05K9

CPC classification number: G01R33/0354 ,  H01L39/045 ,  Y10S505/846

Abstract: Boîtier d'interféromètre quantique comprenant une base d'interféromètre quantique (24) constituée de plusieurs couches et un interféromètre quantique (22) monté sur ladite base. La base d'interféromètre quantique est constituée d'une première couche de substrat (30) réalisée dans un matériau électro-isolant, d'une couche de blindage (28) composée d'un matériau qui est supraconducteur à la température de fonctionnement de l'interféromètre quantique et qui recouvre la première couche de substrat, et d'une deuxième couche de substrat (26) formée dans un matériau électro-isolant, qui recouvre la couche de blindage. Ladite couche de blindage protège l'interféromètre quantique des interférences du courant continu et du courant alternatif, telles que les champs magnétiques et électriques, qui sans cette couche de blindage gêneraient son fonctionnement.

公开(公告)号：EP0595227A1

公开(公告)日：1994-05-04

申请号：EP93117218.3

申请日：1993-10-23

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： DiIorio, Mark S. ,  Hirschkoff, Eugene C. ,  Johnson, Richard T. ,  Buchanan, D. Scott ,  James, Stephen O. ,  Paulson, Douglas ,  Black, William C.

IPC: A61B5/04 ,  G01R33/035

CPC classification number: G01R33/035 ,  A61B5/04008 ,  G01R33/0358 ,  Y10S505/705 ,  Y10S505/846

Abstract: A biomagnetometer (10) includes a magnetic field sensor unit including a magnetic field pickup coil (12). A vessel (16) contains the sensor unit. The vessel (16) includes a flexible contact face (e.g., 240) with the magnetic field sensor unit mounted in the interior of the vessel (16) adjacent to the flexible contact face. Insulation at the flexible contact face (240) of the vessel (16) prevents excessive heat flow through the flexible contact face (240). Pickup units using this structure can be connected together into flexible or rigid arrays. In operation, the pickup coil is cooled to a temperature of less than its superconducting transition temperature. A detector (30) measures the magnitude of magnetic fields sensed by the sensor unit.

Abstract translation: 生物量计（10）包括包括磁场拾取线圈（12）的磁场传感器单元。 容器（16）包含传感器单元。 容器（16）包括柔性接触面（例如240），其中磁场传感器单元安装在与柔性接触面相邻的容器（16）的内部。 在容器（16）的柔性接触面（240）处的绝缘防止过量的热流过柔性接触面（240）。 使用这种结构的拾取单元可以连接在一起成为柔性或刚性阵列。 在操作中，拾取线圈被冷却到小于其超导转变温度的温度。 检测器（30）测量由传感器单元感测的磁场的大小。

公开(公告)号：EP0554880A3

公开(公告)日：1994-01-19

申请号：EP93101776.8

申请日：1993-02-05

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： Hirschkoff, Eugene C. ,  DiIorio, Mark S. ,  Johnson, Richard T. ,  Buchanan, D. Scott

IPC: G01R33/035

CPC classification number: G01R33/035 ,  A61B5/04008

Abstract: A magnetometer (20) comprises a magnetic field pickup coil (22) and a magnetic field detector (26) that receives electrical signals from the pickup coil (22) and produces an electrical detector output (28) responsive thereto. The pickup coil (22) and detector (26), which are preferably made of high temperature superconductors, are enclosed in an insulated enclosure (32) having no vacuum insulation structure. Preferably, the enclosure is made of a foamed polymer material such as styrofoam. A coolant is provided to the interior of the enclosure, to cool the pickup coil and detector to a temperature below their superconducting transition temperature. A number of such modular magnetometers may be connected together to form an array.

Abstract translation: 磁力计（20）包括磁场拾取线圈（22）和磁场检测器（26），该磁场检测器接收来自拾波线圈（22）的电信号并产生响应于此的电检测器输出（28）。 优选由高温超导体制成的拾波线圈（22）和检测器（26）被封装在不具有真空绝缘结构的绝缘外壳（32）中。 优选地，外壳由泡沫聚合物材料例如聚苯乙烯泡沫塑料制成。 将冷却液提供给外壳内部，以将拾波线圈和检测器冷却至其超导转变温度以下的温度。 许多这样的模块化磁力计可以连接在一起以形成阵列。