公开(公告)号：US09827415B2

公开(公告)日：2017-11-28

申请号：US14316896

申请日：2014-06-27

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Warren S. Dabney ,  Christine A. Frysz ,  Richard L. Brendel

IPC: A61N1/00 ,  A61N1/08 ,  A61N1/05 ,  H01F17/02 ,  H03H1/00

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/086 ,  H01F17/02 ,  H03H1/0007

Abstract: A multilayer helical wave filter having a primary resonance at a selected RF diagnostic or therapeutic frequency or frequency range, includes an elongated conductor forming at least a portion of an implantable medical lead. The elongated conductor includes a first helically wound segment having at least one planar surface, a first end and a second end, which forms a first inductive component, and a second helically wound segment having at least one planar surface, a first end and a second end, which forms a second inductive element. The first and second helically wound segments are wound in the same longitudinal direction and share a common longitudinal axis. Planar surfaces of the helically wound segments face one another, and a dielectric material is disposed between the facing planar surfaces of the helically wound segments and between adjacent coils of the helically wound segments, thereby forming a capacitance.

公开(公告)号：US09757558B2

公开(公告)日：2017-09-12

申请号：US14688302

申请日：2015-04-16

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Robert Shawn Johnson ,  Warren S. Dabney ,  Thomas Marzano ,  Richard L. Brendel ,  Christopher Michael Williams ,  Holly Noelle Moschiano ,  Keith W. Seitz ,  John E. Roberts

IPC: A61N1/08 ,  A61N1/375 ,  A61N1/37 ,  H01G4/35 ,  H01G4/30 ,  H01G4/12 ,  H01G4/005 ,  H03H1/00

CPC classification number: A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/3754 ,  A61N1/3758 ,  H01G4/005 ,  H01G4/12 ,  H01G4/30 ,  H01G4/35 ,  H03H1/0007

Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.

公开(公告)号：US09463329B2

公开(公告)日：2016-10-11

申请号：US14556239

申请日：2014-12-01

Applicant: Greatbatch Ltd.

Inventor： Christine A. Frysz ,  Robert A. Stevenson ,  Thomas Marzano ,  Xiaohong Tang ,  William C. Thiebolt ,  Keith W. Seitz

IPC: A61N1/00 ,  A61N1/39 ,  A61N1/362 ,  A61N1/08

CPC classification number: A61N1/3968 ,  A61N1/086 ,  A61N1/362 ,  A61N1/3718 ,  A61N1/3754 ,  H03H1/00 ,  H03H7/0107 ,  H03H7/1758 ,  H03H7/1766 ,  H03H2001/0042 ,  H03H2001/005 ,  H03H2001/0085 ,  H03H2007/013

Abstract: A hermetic terminal assembly for an AIMD includes a shielded three-terminal flat-through EMI energy dissipating filter and a hermetically sealed feedthrough configured to be attachable to the ferrule or AIMD housing. The flat-through filter includes a first shield plate, an active electrode plate, and a second shield plate where the shield plates are electrically coupled to a metallization which in turn is coupled either to the ferrule or AIMD housing. The feedthrough includes an alumina substrate comprised of at least 96% alumina and a via hole with a substantially closed pore and substantially pure platinum fill. The platinum fill forms a tortuous and mutually conformal knitline or interface between the alumina substrate and the platinum fill, wherein the platinum fill is electrically coupled to at least one active electrode plate in non-conductive relationship to the at least one first and second shield plates.

Abstract translation: 用于AIMD的密封端子组件包括屏蔽的三端子平通EMI消散滤波器和被配置为可附接到套圈或AIMD壳体的密封馈通。 平通过滤器包括第一屏蔽板，有源电极板和第二屏蔽板，其中屏蔽板电耦合到金属化，金属化层又连接到套圈或AIMD壳体。 馈通包括由至少96％的氧化铝组成的氧化铝衬底和具有基本上闭孔的通孔和基本上纯的铂填充物。 铂填充物在氧化铝基底和铂填充物之间形成曲折且相互共形的编织物或界面，其中铂填充物与非至少一个第一和第二屏蔽板的非导电关系电耦合到至少一个有源电极板 。

公开(公告)号：US09352150B2

公开(公告)日：2016-05-31

申请号：US14864959

申请日：2015-09-25

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Thomas Marzano ,  Keith W. Seitz ,  Steven W. Winn ,  Christine A. Frysz ,  Richard L. Brendel ,  Jason Woods ,  Dominick J. Frustaci ,  Xiaohong Tang ,  William C. Thiebolt

IPC: H01G4/35 ,  A61N1/375 ,  A61N1/08 ,  A61N1/05 ,  H01G2/10 ,  H01R43/00 ,  H01G4/005 ,  H01G4/12 ,  H01G4/40 ,  H02G3/22 ,  A61N1/372 ,  C22C29/12

CPC classification number: A61N1/3754 ,  A61N1/05 ,  A61N1/08 ,  A61N1/372 ,  A61N1/375 ,  B23K35/3013 ,  C22C29/12 ,  H01G2/103 ,  H01G4/005 ,  H01G4/12 ,  H01G4/30 ,  H01G4/35 ,  H01G4/40 ,  H01R43/00 ,  H02G3/22 ,  Y10T156/1052

Abstract: A co-connected hermetic feedthrough, feedthrough capacitor, and leadwire assembly includes a dielectric substrate with a via hole disposed through the dielectric substrate from a body fluid side to a device side. A conductive fill is disposed within the via forming a hermetic seal and is electrically conductive between the body fluid side and the device side. A feedthrough capacitor is attached to the dielectric substrate and includes a capacitor dielectric substrate, an unfilled capacitor via hole including an inner metallization, a set of capacitor active electrode plates electrically coupled to the inner metallization, an outer metallization disposed and a set of capacitor ground electrode plates electrically coupled to the outer metallization. A conductive leadwire is disposed within the unfilled capacitor via hole. An electrical joint connects the conductive fill, the capacitor inner metallization along with the capacitor active electrode plates and the conductive leadwire.

公开(公告)号：US20150314131A1

公开(公告)日：2015-11-05

申请号：US14797123

申请日：2015-07-11

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Xiaohong Tang ,  William C. Thiebolt ,  Christine A. Frysz ,  Keith W. Seitz ,  Richard L. Brendel ,  Thomas Marzano ,  Jason Woods ,  Dominick J. Frustaci ,  Steven W. Winn

IPC: A61N1/375 ,  H01G2/10 ,  H01G4/35

CPC classification number: A61N1/3754 ,  A61N1/05 ,  A61N1/372 ,  A61N1/375 ,  B22F2998/10 ,  C22C29/12 ,  H01G2/103 ,  H01G4/35 ,  H01R43/00 ,  Y10T156/1052 ,  B22F1/0059 ,  B22F3/10

Abstract: A hermetically sealed feedthrough for attachment to an active implantable medical device includes a dielectric substrate configured to be hermetically sealed to a ferrule or an AIMD housing. A via hole is disposed through the dielectric substrate from a body fluid side to a device side. A conductive fill is disposed within the via hole forming a filled via electrically conductive between the body fluid side and the device side. A conductive insert is at least partially disposed within the conductive fill. Then, the conductive fill and the conductive insert are co-fired with the dielectric substrate to form a hermetically sealed and electrically conductive pathway through the dielectric substrate between the body fluid side and the device side.

Abstract translation: 用于附接到有源可植入医疗装置的气密密封馈通包括构造成气密地密封到套圈或AIMD壳体的电介质衬底。 通孔通过电介质基板从体液侧设置到器件侧。 导电填料设置在通孔内，形成在体液侧和装置侧之间经过导电的填充通孔。 导电插入件至少部分地设置在导电填充物内。 然后，导电填充物和导电插入物与电介质基底共烧，以在体液侧和器件侧之间形成通过电介质基片的气密密封和导电通路。

公开(公告)号：US20150217111A1

公开(公告)日：2015-08-06

申请号：US14688302

申请日：2015-04-16

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Robert Shawn Johnson ,  Warren S. Dabney ,  Thomas Marzano ,  Richard L. Brendel ,  Christopher Michael Williams ,  Holly Noelle Moschiano ,  Keith W. Seitz ,  John E. Roberts

IPC: A61N1/08 ,  A61N1/375

CPC classification number: A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/3754 ,  A61N1/3758 ,  H01G4/005 ,  H01G4/12 ,  H01G4/30 ,  H01G4/35 ,  H03H1/0007

Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.

Abstract translation: AIMD包括导电壳体，具有绝缘体的导电套圈密封密封套圈开口。 导电通路密封并通过绝缘体设置。 滤波电容器设置在壳体内并且具有支撑交替插入的至少两个有源和两个接地电极板的电介质体，其中所述至少两个有源电极板电连接到装置侧的导电路径，并且所述至少两个 接地电极板电耦合到套圈和/或导电壳体。 电介质体的介电常数小于1000，电容为10至20,000皮​​法。 滤波电容器被配置为通过低ESR对MRI高RF脉冲功率进行EMI滤波，其中以RF射频脉冲频率或频率范围的滤波电容器的ESR小于2.0欧姆。

公开(公告)号：US20150207484A1

公开(公告)日：2015-07-23

申请号：US14669041

申请日：2015-03-26

Applicant: GREATBATCH LTD.

Inventor： Robert A. Stevenson ,  Robert Shawn Johnson ,  Kishore Kumar Kondabatni ,  Joseph E. Spaulding ,  Dominick J. Frustaci ,  Warren S. Dabney ,  Holly Noelle Moschiano

IPC: H03H7/01 ,  A61N1/08

CPC classification number: H03H7/0123 ,  A61B5/042 ,  A61B5/055 ,  A61B18/1492 ,  A61B2018/00839 ,  A61B2090/374 ,  A61B2562/182 ,  A61B2562/222 ,  A61B2562/227 ,  A61N1/05 ,  A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  H03H1/0007 ,  H03H2001/0021 ,  H03H2007/013

Abstract: A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.

Abstract translation: 用于医用引线的复合RF电流衰减器包括具有可与生物细胞接触的远端电极的导体，与引线导体串联的带阻滤波器，用于衰减RF电流以选定的中心频率或跨频率范围流过引线导体 关于中心频率，以及与带阻滤波器串联的低通滤波器，并形成引线导体的一部分。 带阻滤波器具有与第一电感并联的电容。 在优选形式中，低通滤波器包括与带阻滤波器串联的第二电感，其中复合RF电流衰减器的电容值和电感值被选择为使其在MRI环境中衰减MRI诱导的RF电流。

公开(公告)号：US20140296952A1

公开(公告)日：2014-10-02

申请号：US14264080

申请日：2014-04-29

Applicant: Greatbatch Ltd.

Inventor： Warren S. Dabney ,  Robert Shawn Johnson ,  Holly Noelle Moschiano ,  Robert A. Stevenson ,  Henry R. Halperin ,  Albert C. Lardo ,  Kishore Kumar Kondabatni

IPC: A61N1/08 ,  A61N1/05

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/086 ,  H03H1/0007 ,  H03H7/1758 ,  H03H7/1766 ,  H03H2001/0042 ,  H03H2001/005 ,  H03H2007/013

Abstract: A shielded component or network for an active medical device (AMD) implantable lead includes an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, a passive component or network disposed somewhere along the length of the implantable lead, the passive component or network including at least one inductive component having a first inductive value, and an electromagnetic shield substantially surrounding the inductive component or the passive network. The first inductive value of the inductive component is adjusted to account for a shift in its inductance to a second inductive value when shielded.

Abstract translation: 用于有源医疗器件（AMD）可植入引线的屏蔽部件或网络包括具有从近端延伸到远端的长度的可植入引线，AMD壳体的外部，被动部件或网络，其设置在沿着 所述可植入引线，所述无源部件或网络包括至少一个具有第一感应值的感应部件和基本上围绕所述电感部件或所述无源网络的电磁屏蔽。 调整电感分量的第一感应值，以便在屏蔽时考虑其电感的移动到第二感应值。

公开(公告)号：US20140168917A1

公开(公告)日：2014-06-19

申请号：US14187295

申请日：2014-02-23

Applicant: GREATBATCH LTD.

Inventor： Thomas Marzano ,  Robert A. Stevenson ,  Christine A. Frysz ,  Jason Woods ,  Richard L. Brendel

IPC: H01G4/35 ,  H03H7/00

CPC classification number: A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/375 ,  A61N1/3754 ,  H01G2/02 ,  H01G2/10 ,  H01G4/40 ,  H01R13/5224 ,  H01R13/7195 ,  H01R2201/12 ,  H03H1/0007 ,  H03H7/1766 ,  H03H2001/0042 ,  H03H2001/0085

Abstract: A hermetically sealed filtered feedthrough includes a chip capacitor disposed on a circuit board on a device side. A first low impedance electrical connection is between a capacitor first end metallization and a conductor which is disposed through an insulator. A second low impedance electrical connection is between the capacitor second end metallization and a ferrule or housing. The second low impedance electrical connection may include an oxide-resistant electrical connection forming the hermetic seal between the insulator and the ferrule or housing and an electrical connection between and to the second end metallization and directly to the oxide-resistant electrical connection. Alternatively, the second low impedance electrical connection may include an oxide-resistant metal addition attached directly to the ferrule or housing and an electrical connection between and to the second end metallization and directly to the oxide-resistant metal addition.

Abstract translation: 密封的滤波馈通包括设置在器件侧的电路板上的片状电容器。 第一低阻抗电连接在电容器第一端金属化和通过绝缘体设置的导体之间。 第二低阻抗电连接在电容器第二端金属化和套圈或壳体之间。 第二低阻抗电连接可以包括形成绝缘体和套圈或外壳之间的气密密封的氧化物电阻连接以及与第二端金属化之间的电连接，并直接连接到耐氧化电连接。 或者，第二低阻抗电连接可以包括直接连接到套圈或外壳上的耐氧化金属添加剂，以及在第二端金属化之间和与第二端金属化部分之间的电连接，并直接与氧化物抵抗的金属添加物连接。

公开(公告)号：US20140168850A1

公开(公告)日：2014-06-19

申请号：US14187297

申请日：2014-02-23

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Christine A. Frysz ,  Jason Woods ,  Richard L. Brendel ,  Robert S. Johnson ,  Dominick J. Frustaci ,  Warren S. Dabney ,  Keith W. Seitz ,  Thomas Marzano ,  John E. Roberts ,  William C. Thiebolt ,  Christopher M. Williams ,  Buehl E. Truex

IPC: H01G4/35

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/3718 ,  A61N1/3754 ,  H01G4/35 ,  H03H1/0007

Abstract: An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.

Abstract translation: 用于在选定的MRI频率或范围频率处理来自外部RF场的相关引线中感应的RF功率的用于主动医疗装置（AMD）的RF滤波器包括具有100至10,000皮​​法之间的电容的电容器，以及温度 介电常数为200以下，电容温度系数（TCC）在400〜71212ppm /摄氏度范围内的稳定电介质。 电容器的介电损耗角正切欧姆小于所选MRI射频频率或频率范围内电容器等效串联电阻（ESR）的百分之五。