Posture determination and stimulation adjustment in a spinal cord stimulator system using sensed stimulation artifacts

A stimulator, sense amplifier technology, applied in sensors, spinal nerve electrodes, applications, etc., can solve problems such as incomplete charge balance

Pending Publication Date: 2022-01-18
BOSTON SCI NEUROMODULATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Passive charge recovery may be advisable since non-idealities in the stimulatio

Method used

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  • Posture determination and stimulation adjustment in a spinal cord stimulator system using sensed stimulation artifacts
  • Posture determination and stimulation adjustment in a spinal cord stimulator system using sensed stimulation artifacts
  • Posture determination and stimulation adjustment in a spinal cord stimulator system using sensed stimulation artifacts

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Embodiment Construction

[0034] An increasingly interesting development of pulse generator systems, and particularly spinal cord stimulator (SCS) pulse generator systems, is the addition of sensing capabilities to complement the stimulation provided by such systems. For example, and as explained in US Patent Application Publication 2017 / 0296823, it may be beneficial to sense neural responses in neural tissue that has received stimulation from an SCS pulse generator. One such neural response is the evoked compound action potential (ECAP). ECAP includes the cumulative response provided by nerve fibers recruited by a stimulus, and essentially includes the sum of the action potentials of the recruited neurons (ganglia or nerve fibers) as they "fire". ECAP in Figure 4B is shown in , and includes multiple peaks, which are conventionally labeled as positive peaks with P and negative peaks with N, where P1 includes the first positive peak, N1 includes the first negative peak, P2 includes the second positive...

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Abstract

In Spinal Cord Stimulation (SCS) systems having sensing capability, conventional wisdom seeks to minimize or avoid sensing of stimulation artifacts caused by the stimulation. Despite this, the present disclosure recognizes that stimulation artifacts in and of itself can include useful information relevant to operation of the SCS implant and/or the status of the patient. In particular, stimulation artifact features as sensed can be used to determine a posture or activity of the patient, or more generally to adjust the stimulation program that the SCS implant is providing. Furthermore, sensing of stimulation artifact features can be as useful as, and possibly even more useful than, information gleaned from sensing neural responses to stimulation, such as Evoked Compound Action Potentials (ECAPs).

Description

technical field [0001] The present application relates to implantable medical devices (IMDs), and more particularly to sensing signals in implantable stimulator devices. Background technique [0002] Implantable neurostimulator devices are devices that generate and deliver electrical stimulation to the nerves and tissues of the body to treat various biological disorders, such as pacemakers for the treatment of cardiac arrhythmias, defibrillation for the treatment of cardiac fibrillation Fibrillators, cochlear stimulators for the treatment of deafness, retinal stimulators for the treatment of blindness, muscle stimulators for the production of coordinated limb movements, spinal cord stimulators for the treatment of chronic pain, Cortical and deep brain stimulators, other neurostimulators for the treatment of urinary incontinence, sleep apnea, shoulder subluxation, etc. The following description focuses primarily on the use of the present invention in a spinal cord stimulatio...

Claims

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Application Information

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IPC IPC(8): A61B5/00A61B5/11A61B5/24A61N1/36A61B5/024
CPCA61B5/407A61N1/36062A61B5/24A61N1/36139A61B5/1116A61B5/1118A61B5/4836A61B5/024A61B5/1123A61N1/36135A61B5/4809A61B5/1126A61N1/0551A61N1/3615A61N1/40
Inventor 瓦罗尔·布拉克·艾代米尔罗萨娜·伊丝泰勒
Owner BOSTON SCI NEUROMODULATION CORP
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