公开(公告)号：US07317948B1

公开(公告)日：2008-01-08

申请号：US10364436

申请日：2003-02-11

Applicant: John D H King ,  James R Thacker

Inventor： John D H King ,  James R Thacker

IPC: A61N1/00

CPC classification number: A61N1/36139 ,  A61N1/08 ,  A61N1/36071 ,  A61N1/3615

Abstract: A neural stimulation system automatically corrects or adjusts the stimulus magnitude (stimulation energy) in order to maintain a comfortable and effective stimulation therapy. Because the changes in impedance associated with the electrode-tissue interface can indicate obstruction of current flow and positional lead displacement, lead impedance can indicate the quantity of electrical stimulation energy that should be delivered to the target neural tissue to provide corrective adjustment. Hence, a change in impedance or morphology of an impedance curve may be used in a feedback loop to indicate that the stimulation energy needs to be adjusted and the system can effectively auto correct the magnitude of stimulation energy to maintain a desired therapeutic effect.

Abstract translation: 神经刺激系统自动校正或调整刺激量（刺激能量），以保持舒适有效的刺激疗法。 由于与电极 - 组织界面相关的阻抗变化可以指示电流和位置引线位移的阻塞，所以引线阻抗可以指示应该传送到目标神经组织的电刺激能量的量以提供校正调整。 因此，可以在反馈回路中使用阻抗曲线的阻抗或形态的变化，以指示需要调整刺激能量，并且系统能够有效地自动校正刺激能量的大小以维持所需的治疗效果。