公开(公告)号：US09238141B2

公开(公告)日：2016-01-19

申请号：US13967638

申请日：2013-08-15

Applicant: Medtronic, Inc.

Inventor： Robert Hocken ,  Heather Orser ,  Wesley Santa ,  Larry E. Tyler

IPC: A61N1/08 ,  A61N1/37 ,  A61N1/36

CPC classification number: A61N1/3718 ,  A61N1/36125

Abstract: Devices and methods compensate for perturbations in a stimulation signal caused by external conditions such as a magnetic field of an MRI machine so that stimulation therapy may continue in the presence of the external condition. Compensation for the perturbations during a stimulation pulse of a stimulation phase may be provided by using feedback within a stimulation current source. Perturbations during a recharge phase may be addressed by utilizing an active recharge at least when the external condition is present. Furthermore, compensation for perturbations during a recharge pulse of the active recharge phase may be provided by using feedback within a recharge current source. Passive recharge may be used instead of active recharge when the external condition is not present to preserve battery life of the stimulation device. The stimulation device may include a sensor to detect the external condition so that an appropriate mode of recharge may be chosen.

Abstract translation: 装置和方法补偿由诸如MRI机器的磁场的外部条件引起的刺激信号中的扰动，使得刺激治疗可以在存在外部条件的情况下继续。 在刺激阶段的刺激脉冲期间的扰动的补偿可以通过使用刺激电流源内的反馈来提供。 至少在外部条件存在时，可以通过利用主动充电来解决充电阶段期间的干扰。 此外，可以通过使用充电电流源内的反馈来提供在有效充电阶段的充电脉冲期间的扰动补偿。 当外部条件不存在以保持刺激装置的电池寿命时，可以使用被动充电而不是有效充电。 刺激装置可以包括用于检测外部条件的传感器，使得可以选择适当的再充电模式。

公开(公告)号：US20150051670A1

公开(公告)日：2015-02-19

申请号：US13967638

申请日：2013-08-15

Applicant: Medtronic, Inc.

Inventor： Robert Hocken ,  Heather Orser ,  Wesley Santa ,  Larry E. Tyler

IPC: A61N1/372

CPC classification number: A61N1/3718 ,  A61N1/36125

Abstract: Devices and methods compensate for perturbations in a stimulation signal caused by external conditions such as a magnetic field of an MRI machine so that stimulation therapy may continue in the presence of the external condition. Compensation for the perturbations during a stimulation pulse of a stimulation phase may be provided by using feedback within a stimulation current source. Perturbations during a recharge phase may be addressed by utilizing an active recharge at least when the external condition is present. Furthermore, compensation for perturbations during a recharge pulse of the active recharge phase may be provided by using feedback within a recharge current source. Passive recharge may be used instead of active recharge when the external condition is not present to preserve battery life of the stimulation device. The stimulation device may include a sensor to detect the external condition so that an appropriate mode of recharge may be chosen.

Abstract translation: 装置和方法补偿由诸如MRI机器的磁场的外部条件引起的刺激信号中的扰动，使得刺激治疗可以在存在外部条件的情况下继续。 在刺激阶段的刺激脉冲期间的扰动的补偿可以通过使用刺激电流源内的反馈来提供。 至少在外部条件存在时，可以通过利用主动充电来解决充电阶段期间的干扰。 此外，可以通过使用充电电流源内的反馈来提供在有效充电阶段的充电脉冲期间的扰动补偿。 当外部条件不存在以保持刺激装置的电池寿命时，可以使用被动充电而不是有效充电。 刺激装置可以包括用于检测外部条件的传感器，使得可以选择适当的再充电模式。