公开(公告)号：US20080071168A1

公开(公告)日：2008-03-20

申请号：US11460081

申请日：2006-07-26

申请人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

发明人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

IPC分类号： A61B5/05 ,  A61B6/00 ,  A61M25/00 ,  G01V3/00

CPC分类号： G01R33/287 ,  A61B5/055 ,  A61N1/3605 ,  A61N1/3718 ,  A61N1/3956 ,  G01V3/101

摘要： Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.

摘要翻译： 提供了用于感测可植入医疗装置中的外部磁场的系统和方法。 本公开的一个方面涉及用于感测磁场的装置。 一种装置实施例包括具有至少一个具有磁芯的感应电路的感测电路，该磁芯在具有规定磁通密度的磁场的存在下饱和。 装置实施例还包括连接到感测电路的阻抗测量电路。 阻抗测量电路适于测量感测电路的阻抗，并且当阻抗改变规定量时提供信号。 根据实施例，感测电路包括电阻 - 电感 - 电容（RLC）电路。 根据实施例，阻抗测量电路包括经胸阻抗测量模块（TIMM）。 本文提供了其它方面和实施例。

公开(公告)号：US20050119709A1

公开(公告)日：2005-06-02

申请号：US10726270

申请日：2003-12-02

申请人： Karl Gauglitz ,  Blair Erbstoeszer

发明人： Karl Gauglitz ,  Blair Erbstoeszer

IPC分类号： A61N1/375

CPC分类号： A61N1/375

摘要： A gaseous mixture including sulfur hexafluoride provides improved insulation properties for an implantable pulse generator. The mixture, including a leak tracing gas such as helium, is hermetically sealed in a biocompatible housing. In one embodiment, the mixture is maintained at a pressure greater than one atmosphere.

摘要翻译： 包括六氟化硫的气体混合物为可植入脉冲发生器提供改进的绝缘性能。 包括诸如氦气之类的泄漏追踪气体的混合物气密地密封在生物相容的壳体中。 在一个实施方案中，将混合物保持在大于1个大气压的压力下。

公开(公告)号：US08049489B2

公开(公告)日：2011-11-01

申请号：US11460081

申请日：2006-07-26

申请人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

发明人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

IPC分类号： G01R33/00 ,  G01R33/02 ,  G01B7/14 ,  G08B1/08 ,  G08B12/24 ,  A61M37/00 ,  A61N1/00 ,  A61B5/05

CPC分类号： G01R33/287 ,  A61B5/055 ,  A61N1/3605 ,  A61N1/3718 ,  A61N1/3956 ,  G01V3/101

摘要： Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.

摘要翻译： 提供了用于感测可植入医疗装置中的外部磁场的系统和方法。 本公开的一个方面涉及用于感测磁场的装置。 一种装置实施例包括具有至少一个具有磁芯的感应电路的感测电路，该磁芯在具有规定磁通密度的磁场的存在下饱和。 装置实施例还包括连接到感测电路的阻抗测量电路。 阻抗测量电路适于测量感测电路的阻抗，并且当阻抗改变规定量时提供信号。 根据实施例，感测电路包括电阻 - 电感 - 电容（RLC）电路。 根据实施例，阻抗测量电路包括经胸阻抗测量模块（TIMM）。 本文提供了其它方面和实施例。

公开(公告)号：US08710826B2

公开(公告)日：2014-04-29

申请号：US13282968

申请日：2011-10-27

申请人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

发明人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

IPC分类号： G01R33/00 ,  G01B7/14 ,  G01R33/02 ,  G08B1/08 ,  A61M37/00 ,  A61N1/00 ,  A61B5/05

CPC分类号： G01R33/287 ,  A61B5/055 ,  A61N1/3605 ,  A61N1/3718 ,  A61N1/3956 ,  G01V3/101

摘要： Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.

摘要翻译： 提供了用于感测可植入医疗装置中的外部磁场的系统和方法。 本公开的一个方面涉及用于感测磁场的装置。 一种装置实施例包括具有至少一个具有磁芯的感应电路的感测电路，该磁芯在具有规定磁通密度的磁场的存在下饱和。 装置实施例还包括连接到感测电路的阻抗测量电路。 阻抗测量电路适于测量感测电路的阻抗，并且当阻抗改变规定量时提供信号。 根据实施例，感测电路包括电阻 - 电感 - 电容（RLC）电路。 根据实施例，阻抗测量电路包括经胸阻抗测量模块（TIMM）。 本文提供了其它方面和实施例。

公开(公告)号：US20120046707A1

公开(公告)日：2012-02-23

申请号：US13282968

申请日：2011-10-27

申请人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

发明人： Karl Gauglitz ,  Thomas M. Bocek ,  Mark Rutzer ,  Lorin W. Matthews ,  William E. Reagor ,  Blair Erbstoeszer

IPC分类号： A61N1/39 ,  A61N1/362 ,  G01R33/04 ,  A61N1/36

CPC分类号： G01R33/287 ,  A61B5/055 ,  A61N1/3605 ,  A61N1/3718 ,  A61N1/3956 ,  G01V3/101

摘要： Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.

摘要翻译： 提供了用于感测可植入医疗装置中的外部磁场的系统和方法。 本公开的一个方面涉及用于感测磁场的装置。 一种装置实施例包括具有至少一个具有磁芯的感应电路的感测电路，该磁芯在具有规定磁通密度的磁场的存在下饱和。 装置实施例还包括连接到感测电路的阻抗测量电路。 阻抗测量电路适于测量感测电路的阻抗，并且当阻抗改变规定量时提供信号。 根据实施例，感测电路包括电阻 - 电感 - 电容（RLC）电路。 根据实施例，阻抗测量电路包括经胸阻抗测量模块（TIMM）。 本文提供了其它方面和实施例。