公开(公告)号：US08731682B2

公开(公告)日：2014-05-20

申请号：US13708155

申请日：2012-12-07

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： William L Winstrom

IPC: A61N1/08

CPC classification number: A61N1/36128 ,  A61N1/3605 ,  A61N1/3787

Abstract: In one embodiment, an external charging device for recharging an implanted medical device, comprises: a battery for powering the external charging device; a coil for radiating RF power; drive circuitry for driving the coil according to a duty cycle; circuitry for generating a signal that is indicative of an amount of current flowing through the coil; and control circuitry for controlling the drive circuitry, wherein the control circuitry is operable to process the signal from the circuitry for generating to detect when a coil of the implantable medical device temporarily ceases absorbing RF power, the control circuitry modifying the duty cycle in response to detection of the coil of the implantable medical device temporarily ceasing absorbing RF power.

Abstract translation: 在一个实施例中，一种用于对植入的医疗装置再充电的外部充电装置，包括：用于为外部充电装置供电的电池; 用于辐射RF功率的线圈; 用于根据占空比驱动线圈的驱动电路; 用于产生指示流经线圈的电流量的信号的电路; 以及用于控制所述驱动电路的控制电路，其中所述控制电路可操作以处理来自所述电路的所述信号，用于产生以检测所述可植入医疗装置的线圈何时暂时停止吸收RF功率，所述控制电路响应于 可植入医疗装置的线圈的检测暂时停止吸收RF功率。

公开(公告)号：US20130096653A1

公开(公告)日：2013-04-18

申请号：US13708155

申请日：2012-12-07

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： William L Winstrom

IPC: A61N1/36

CPC classification number: A61N1/36128 ,  A61N1/3605 ,  A61N1/3787

Abstract: In one embodiment, an external charging device for recharging an implanted medical device, comprises: a battery for powering the external charging device; a coil for radiating RF power; drive circuitry for driving the coil according to a duty cycle; circuitry for generating a signal that is indicative of an amount of current flowing through the coil; and control circuitry for controlling the drive circuitry, wherein the control circuitry is operable to process the signal from the circuitry for generating to detect when a coil of the implantable medical device temporarily ceases absorbing RF power, the control circuitry modifying the duty cycle in response to detection of the coil of the implantable medical device temporarily ceasing absorbing RF power.

Abstract translation: 在一个实施例中，一种用于对植入的医疗装置再充电的外部充电装置，包括：用于为外部充电装置供电的电池; 用于辐射RF功率的线圈; 用于根据占空比驱动线圈的驱动电路; 用于产生指示流经线圈的电流量的信号的电路; 以及用于控制所述驱动电路的控制电路，其中所述控制电路可操作以处理来自所述电路的信号，用于产生以检测所述可植入医疗装置的线圈何时暂时停止吸收RF功率，所述控制电路响应于 可植入医疗装置的线圈的检测暂时停止吸收RF功率。