公开(公告)号：US06745077B1

公开(公告)日：2004-06-01

申请号：US09975042

申请日：2001-10-09

申请人： Glen A. Griffith ,  Tae W. Hahn

发明人： Glen A. Griffith ,  Tae W. Hahn

IPC分类号： A61N108

CPC分类号： A61N1/08

摘要： A fixed frequency external power source having an external coil is inductively coupled with an implanted coil of an implanted medical device. The implant device has an electronic impedance transformer as part of its load circuit. Such electronic impedance transformer sets a proper voltage and current ratio (impedance) so that the coil set, i.e., the external coil and the implanted coil, are loaded with an optimal load. Such optimal loading, in turn, significantly minimizes any mismatch loss from the inductive link between the external coil and the implant coil, and allows wide ranges in the voltage and load resistance and coil separation, while at the same time maintaining an optimal load condition. The impedance transformer is especially applicable to fully implantable cochlear stimulation systems wherein, during one mode of operation, a relatively large power level must be transferred for charging the implanted power storage element, e.g., a rechargeable battery, but wherein another mode of operation, the implant is operated and powered from an external unit and a relatively small power level is transferred to the implant device. The ratio of these power levels may be large, e.g., about 30 to 1, and unless the coil set, i.e., the external coil and implanted coil, are altered between these different load conditions, a huge mismatch loss may occur, which mismatch greatly reduces the power transfer efficiency. The impedance transformer of the invention minimizes such a mismatch loss.

摘要翻译： 具有外部线圈的固定频率外部电源与注入的医疗装置的植入线圈感应耦合。 植入装置具有作为其负载电路的一部分的电子阻抗变压器。 这种电子阻抗变压器设置适当的电压和电流比（阻抗），使得线圈组，即外部线圈和植入线圈被加载有最佳负载。 这样的最佳负载又显着地使来自外部线圈和植入线圈之间的电感链路的任何失配损耗最小化，并允许电压和负载电阻以及线圈间隔的宽范围，同时保持最佳的负载状态。 阻抗变换器特别适用于完全可植入的耳蜗刺激系统，其中在一种操作模式中，必须传送相对较大的功率电平以对植入的电力存储元件（例如可再充电电池）进行充电，但是另一种操作模式 植入物由外部单元操作和供电，相对小的功率水平传递到植入装置。 这些功率电平的比例可能很大，例如大约30比1，除非线圈组，即外部线圈和注入的线圈在这些不同的负载条件之间被改变，否则可能发生巨大的失配损耗， 降低功率传输效率。 本发明的阻抗变换器使这种失配损失最小化。

公开(公告)号：US06542777B1

公开(公告)日：2003-04-01

申请号：US09766290

申请日：2001-01-19

申请人： Glen A. Griffith ,  Janusz A. Kuzma ,  Tae W. Hahn

发明人： Glen A. Griffith ,  Janusz A. Kuzma ,  Tae W. Hahn

IPC分类号： A61N140

CPC分类号： A61N1/37229

摘要： A spiral shield for an implantable secondary coil confines the electrical field of the coil, and thus prevents capacitive coupling of the coil through surrounding dielectrics (such as human tissue.) Known implantable devices receive power inductively, through a secondary coil, from a primary coil in an external device. Efficient power reception requires that the coils be tuned to the same resonant frequency. Use of the spiral shield results in predictable electrical behavior of the secondary coil and permits the secondary coil to be accurately tuned to the same resonate frequency as the primary coil. To further improve performance, spacers made from SILBIONE®LSR 70 reside between turns of the coil to reduce turn to turn and turn to shield capacitances. Reducing the capacitances prevents excessive reduction of the self resonant frequency of the coil. The coil is imbedded in SILBIONE®LSR 70, allowing for a thin and flexible coil.

摘要翻译： 用于可植入次级线圈的螺旋屏蔽限制线圈的电场，从而防止线圈通过周围电介质（例如人体组织）的电容耦合。已知的可植入装置通过次级线圈感应地从初级线圈 在外部设备。 有效的功率接收要求将线圈调谐到相同的谐振频率。 螺旋屏蔽的使用导致次级线圈的可预测的电气行为，并允许将次级线圈精确地调谐到与初级线圈相同的谐振频率。 为了进一步提高性能，SILBIONE（R）LSR 70制成的间隔件位于线圈的转弯之间，以减少转向并转向屏蔽电容。 降低电容可以防止线圈的自谐振频率的过度降低。 线圈镶嵌在SILBIONE（R）LSR 70中，允许薄而柔性的线圈。

公开(公告)号：US06212431B1

公开(公告)日：2001-04-03

申请号：US09376881

申请日：1999-08-18

申请人： Tae W. Hahn ,  Glen A. Griffith

发明人： Tae W. Hahn ,  Glen A. Griffith

IPC分类号： A61N1378

CPC分类号： A61N1/3787 ,  A61N1/36036

摘要： An external power transfer circuit (12) couples ac power having a fixed frequency into an implantable electrical circuit (14), e.g., an implantable tissue stimulator, while automatically maintaining optimum power transfer conditions. Optimum power transfer conditions exist when there is an impedance match between the external and implanted circuits. The external transfer circuit includes a directional coupler (42) and an impedance matching circuit (44). The directional coupler senses the forward power being transferred to the implant device, as well as the reverse power being reflected form the implant device (as a result of an impedance mismatch). The impedance matching circuit includes at least one variable element controlled by a control signal. The sensed reverse power is used as a feedback signal to automatically adjust the variable element in the impedance matching circuit, and hence the output impedance of the external power transfer circuit, so that it matches the input impedance of the implant device, despite variations that occur in the input impedance of the implant device due to variations in implant distance and implant load.

摘要翻译： 外部功率传输电路（12）将具有固定频率的交流电力耦合到例如可植入组织刺激器的可植入电路（14）中，同时自动保持最佳功率传输条件。 当外部和注入电路之间存在阻抗匹配时，存在最佳功率传输条件。 外部传送电路包括定向耦合器（42）和阻抗匹配电路（44）。 定向耦合器感测被传送到植入装置的正向功率，以及从植入装置反射的反向功率（由于阻抗失配）。 阻抗匹配电路包括由控制信号控制的至少一个可变元件。 感测到的反向功率用作反馈信号，以自动调整阻抗匹配电路中的可变元件，从而使外部功率传输电路的输出阻抗匹配，尽管发生了变化，但它与植入装置的输入阻抗相匹配 在植入装置的输入阻抗中，由于植入物距离和植入物负载的变化。

公开(公告)号：US09191751B2

公开(公告)日：2015-11-17

申请号：US13983563

申请日：2012-01-27

申请人： Lee F. Hartley ,  Roger S. Meier ,  Glen A. Griffith ,  Tracey L. Kruger ,  R. Tissa Karunasiri ,  Scott A. Crawford ,  Frank Nigro

发明人： Lee F. Hartley ,  Roger S. Meier ,  Glen A. Griffith ,  Tracey L. Kruger ,  R. Tissa Karunasiri ,  Scott A. Crawford ,  Frank Nigro

IPC分类号： H04R25/00 ,  A61N1/00 ,  A61N1/36

CPC分类号： H04R25/00 ,  A61N1/36036 ,  H04R25/43 ,  H04R25/556 ,  H04R25/558

摘要： An exemplary apparatus for use with an auditory prosthesis system includes a housing, a connector port disposed at least partially within the housing and configured to be communicatively coupled to an auxiliary audio input device, a telecoil disposed at least partially within the housing, and a multi-position switch disposed at least partially within the housing and configured to selectively enable the auxiliary audio input device and the telecoil. The auxiliary audio input device is enabled and the telecoil is disabled when the switch is in a first position, both the auxiliary audio input device and the telecoil are enabled when the switch is in a second position, and the telecoil is enabled and the auxiliary audio input device is disabled when the switch is in a third position. Corresponding apparatuses, systems, and methods are also disclosed.

摘要翻译： 用于听觉假体系统的示例性装置包括壳体，连接器端口，其至少部分地设置在壳体内并且被配置为可通信地耦合到辅助音频输入装置，至少部分地设置在壳体内的拾音线圈， 位置开关至少部分地设置在壳体内并且被配置为选择性地启用辅助音频输入装置和拾音线圈。 当辅助音频输入设备处于第一位置时，当开关处于第一位置时，辅助音频输入设备被使能并且电磁线圈被禁用，当开关处于第二位置时，辅助音频输入设备和拾音器都被使能，并且启动音圈并且辅助音频 当交换机处于第三位置时，输入设备被禁用。 还公开了相应的装置，系统和方法。

公开(公告)号：US06178353B1

公开(公告)日：2001-01-23

申请号：US09353236

申请日：1999-07-14

申请人： Glen A. Griffith ,  Richard P. Malmgren

发明人： Glen A. Griffith ,  Richard P. Malmgren

IPC分类号： A61N1378

CPC分类号： A61N1/37276 ,  A61N1/36036 ,  A61N1/37223 ,  A61N1/3787

摘要： An implantable medical device, such as an implantable cochlear stimulator (ICS) system, utilizes laminated, sectionalized or particle-ized permanent magnets and/or keepers in both the implant portion and external (non-implanted) portion so as to reduce the electrical energy absorbed by both the implant device and the external device when in use. In one embodiment, the implant device employs a sectionalized, laminated or particle-based “keeper”, while the external device employs a sectionalized, laminated or particle-ized magnet, making the implant device immune to being damaged by MRI (magnetic resonance imaging). The combination of the sectionalized/laminated/particle magnets and the sectionalized/laminated/particle keepers creates a very high electrical resistance path across the boundaries of the laminations, sections, or particles, thereby reducing the magnitude of eddy currents that would otherwise flow transversely through the keeper in the presence of a magnetic flux passing through the keeper or magnet. The reduction of eddy currents, in turn, reduces energy loss.

摘要翻译： 植入式医疗装置，例如植入式耳蜗刺激器（ICS）系统，在植入部分和外部（未植入）部分中都使用层压的，分段的或颗粒化的永磁体和/或保持器，以便减少电能 在使用时由植入装置和外部装置吸收。 在一个实施例中，植入装置采用分段，层压或基于粒子的“保持器”，而外部装置采用分段，层压或粒化的磁体，使得植入装置免受MRI（磁共振成像）的损伤， 。 分段/层压/颗粒磁体和分段/层压/颗粒保持器的组合在叠片，部分或颗粒的边界上产生非常高的电阻路径，从而减小横向通过的涡流的大小 在存在通过保持器或磁体的磁通量的情况下的保持器。 涡流的减少又降低了能量损失。

公开(公告)号：US20110224789A1

公开(公告)日：2011-09-15

申请号：US13128755

申请日：2009-11-11

申请人： Glen A. Griffith

发明人： Glen A. Griffith

IPC分类号： A61F2/18 ,  A61N1/00

CPC分类号： A61N1/36032 ,  A61N1/36036 ,  A61N1/3718 ,  A61N1/37229 ,  A61N1/3758 ,  A61N1/3787 ,  H01Q1/273 ,  H01Q7/00 ,  H01Q17/001

摘要： Cochlear implant systems include a circuit board having electronic circuitry configured to generate one or more signals configured to direct electrical stimulation of one or more stimulation sites within a patient, an induction coil configured to transmit a telemetry signal by generating a telemetry magnetic field, and a telemetry flux guide positioned between the induction coil and the circuit board. The telemetry flux guide is configured to direct magnetic flux of the telemetry magnetic field away from the circuit board.

摘要翻译： 人工耳蜗系统包括具有电子电路的电路板，电子电路被配置为产生被配置为引导患者内的一个或多个刺激部位的电刺激的一个或多个信号，被配置为通过产生遥测磁场传输遥测信号的感应线圈，以及 位于感应线圈和电路板之间的遥测助焊剂。 遥测磁通引导件被配置为将遥测磁场的磁通量引导离开电路板。

公开(公告)号：US4352188A

公开(公告)日：1982-09-28

申请号：US165524

申请日：1980-07-03

申请人： Glen A. Griffith

发明人： Glen A. Griffith

IPC分类号： H01S3/038 ,  H01S3/03 ,  H01S3/06 ,  H01S3/097 ,  H01S3/0975 ,  H01S3/093

CPC分类号： H01S3/0315 ,  H01S3/0975

摘要： A discharge-excited waveguide gas laser is disclosed utilizing a transverse rf excitation voltage at a frequency of at least about 30 MHz applied between elongated electrodes on opposite sides of the laser discharge chamber. A plurality of shunt inductances are coupled between the electrodes externally of the chamber at periodically spaced locations along the length of the chamber. These inductances provide a negative admittance which compensates for the variation in the phase angle of the transmission line reflection coefficient along the length of the laser discharge chamber. The variation in the magnitude of the standing wave voltage produced in the chamber by the excitation voltage is reduced accordingly, thereby improving the uniformity of the laser-exciting discharge.

摘要翻译： 公开了一种放电激发的波导气体激光器，其利用施加在激光放电室的相对侧上的细长电极之间的至少约30MHz的频率的横向射频激发电压。 多个分流电感器沿着腔室的长度在周期性间隔的位置处连接在腔室外部的电极之间。 这些电感提供负导纳，其补偿沿着激光放电室的长度的传输线反射系数的相位角的变化。 通过激励电压在室中产生的驻波电压的大小的变化相应地降低，从而提高激光激发放电的均匀性。

公开(公告)号：US4269501A

公开(公告)日：1981-05-26

申请号：US74863

申请日：1979-09-12

申请人： Glen A. Griffith ,  Leroy V. Sutter, Jr.

发明人： Glen A. Griffith ,  Leroy V. Sutter, Jr.

IPC分类号： G03D13/04 ,  G03D3/04

CPC分类号： G03D13/046

摘要： The present invention is an improved drum mechanism for use in combination with an automatic photographic processing system which includes a housing, a bi-directional motor that has a shaft and that is mounted on the housing, a control unit for controlling the bi-directional motor and a drain tray that is mounted on the housing. The automatic photographic processing system also includes a fluid injector unit for injecting fluids into said improved drum mechanism that is electrically coupled to the control unit and that is mounted on the housing. The improved drum mechanism includes an elongated, cylinder-shaped member which is adapted to receiver photographic print materials and which is fluidly coupled to the fluid injector unit and a drum mounting that includes a set of four rollers, one of which is mechanically coupled to the shaft of the bi-directional motor and which is mechanically coupled to the elongated, cylinder-shaped member, and that is mechanically coupled to the housing adjacent to the drain tray so that when the elongated, cylinder-shaped member is placed on the set of four rollers it can be bi-directionally rotated by the bi-directional motor. The improved drum mechanism has a draining apparatus which is a slot which travels longitudinally along the sidewall of the elongated cylinder-shaped member and which may be disposed parallelly above the drain tray.

摘要翻译： 本发明是一种与自动摄影处理系统组合使用的改进的鼓机构，其包括壳体，具有轴并且安装在壳体上的双向电动机，用于控制双向电动机的控制单元 以及安装在壳体上的排水盘。 自动摄影处理系统还包括用于将流体喷射到电耦合到控制单元并且安装在壳体上的所述改进的鼓机构中的流体注射器单元。 改进的鼓机构包括细长的圆柱形构件，其适于接收照相打印材料并且流体地联接到流体喷射器单元和鼓安装件，其包括一组四个辊，其中一个辊机械地联接到 双轴电动机的轴，并且机械地联接到细长的圆柱形构件，并且机构地联接到邻近排水盘的壳体，使得当细长的圆柱形构件被放置在一组 四个滚轮可以由双向马达双向旋转。 改进的鼓式机构具有排水装置，该排水装置是沿着细长的圆筒形构件的侧壁纵向延伸并且可平行布置在排水盘上方的槽。

公开(公告)号：US10792498B2

公开(公告)日：2020-10-06

申请号：US16067493

申请日：2015-12-31

申请人： ADVANCED BIONICS AG ,  Glen A. Griffith

发明人： Scott Kenneth Arfin ,  Glen A. Griffith

IPC分类号： A61N1/36 ,  A61N1/372 ,  A61N1/02 ,  H04R25/00 ,  A61N1/05

摘要： A cochlear implant configured to be implanted within a patient may comprise an integrated circuit including a driver configured to generate a back telemetry signal encoded with information to be transmitted over a wireless communication link to a sound processor located external to the patient. The cochlear implant may also comprise a filter network that includes a first plurality of impedance components including a damping resistor, and a first and a second impedance component such as a capacitor or an inductor. The cochlear implant may also comprise an isolation network including a second plurality of impedance components configured to isolate, from the filter network and the driver, a forward telemetry signal received by the cochlear implant from the sound processor.

公开(公告)号：US08275462B1

公开(公告)日：2012-09-25

申请号：US13206975

申请日：2011-08-10

申请人： Glen A. Griffith

发明人： Glen A. Griffith

IPC分类号： A61N1/00

CPC分类号： A61N1/3727 ,  A61N1/36036

摘要： Systems and methods for efficiently transmitting power using a high frequency (e.g., RF) telemetry transmitter are provided. The telemetry transmitter may include a fixed clock source (which may provide a fixed clock signal), telemetry phase shift circuitry (which may include switching circuitry and phase shifting circuitry), and a push-pull network. The telemetry phase shift circuitry generates a phase shifted clock signal that is phase shifted with respect to the fixed clock signal. The fixed and phase shifted clock signals may drive the switching circuitry to produce a high frequency signal that is passed through the push-pull network. The power or magnitude of the high frequency signal is based on the phase delay between the fixed clock signal and the phase shifted clock signal.

摘要翻译： 提供了使用高频（例如RF）遥测发射机有效发射功率的系统和方法。 遥测发射机可以包括固定时钟源（其可以提供固定时钟信号），遥测相移电路（其可以包括开关电路和相移电路）以及推挽网络。 遥测相移电路产生相对于固定时钟信号相移的相移时钟信号。 固定和相移的时钟信号可以驱动开关电路以产生通过推挽网络的高频信号。 高频信号的功率或幅度取决于固定时钟信号和相移时钟信号之间的相位延迟。