Stimulator, Electrical, Evoked Response

Reports per year

Source: FDA adverse event reports by year received, 2012–2026. Reporting paused twice in 2026 during FDA reporting-system changes and has since resumed.

Recent recalls

• 2026-07-23Open, ClassifiedSoftware Design Change

  SafeOp Patient Interface, REF: AIX11240, part of SafeOp 3: Neural Informatix System

  Intraoperative neuromonitoring device, due to a software issue, may experience loss or interruption of triggered electromyography (tEMG) functionality during use, displaying as system faults, loss of communication between the Patient Interface and Tablet, and prompts requiring system reboot; may result in increased operative time and surgical plan change.

• 2025-04-18Open, ClassifiedSoftware change control

  NIM Vital Nerve Monitoring System: CONSOLE NIM4CM01 NIM 4.0, REF: NIM4CM01; CONSOLE NIM4CM01RF NIM 4.0 REFURBISHED, REF: NIM4CM01RF; PATIENT INTERFACE NIM4CPB1 NIM 4.0, REF: NIM4CPB1; PATIENT INTFC NIM4CPB1RF NIM 4.0 REFURB, REF: NIM4CPB1RF; SOFTWARE NIM4SWU143 UPGRADE V1.4.3, REF: NIM4SWU143; SOFTWARE NIM4SWU154 UPGRADE V1.5.4, REF: NIM4SWU154; SOFTWARE NIM4SWU164 UPGRADE V1.6.4, REF: NIM4SWU164

  Nerve Monitoring System with certain software versions has potential for increased stimulus artifact, which may require troubleshooting, and may lead to procedure delay, extubation, and medical intervention.

• 2024-07-24Open, ClassifiedUnder Investigation by firm

  NIM Vital Nerve Monitoring systems (all serial numbers manufactured) with NIM Vital System versions: v1.0.0, v1.1.1, v1.3.2, v1.4.3. NIM Vital Nerve Integrity Monitor with below product descriptions. 1. CONSOLE NIM4CM01 NIM 4.0, Model Number: NIM4CM01. 2. CONSOLE NIM4CM01RF NIM 4.0 REFURBISHED, Model Number: NIM4CM01RF, 3. PATIENT INTERFACE NIM4CPB1 NIM 4.0, Model Number: NIM4CPB1, 4. PATIENT INTFC NIM4CPB1RF NIM 4.0 REFURB, Model Number: NIM4CPB1RF, 5. SOFTWARE NIM4SWU143 UPGRADE V1.4.3, Model Number: NIM4SWU143

  Potential for false negative response on the NIM Vital Nerve Monitoring System

• 2024-07-12Open, ClassifiedProcess design

  Cascade IOMAX Cortical Module, REF: 190296-200

  Electroneurodiagnostic medical device may contain a defective printed circuit board which may cause damage to the other internal components resulting in unintended electrical stimulation.

• 2024-05-22Open, ClassifiedProcess design

  Cascade IOMAX Cortical Module, REF: 190296-200

  There is the potential that an electroneurodiagnostic medical device insulator may be installed incorrectly which could result in arcing to patient connections resulting in potential unintended shock to the patient.

• 2022-06-02Open, ClassifiedSoftware Design Change

  NIM Vital Console 4.0 (P/N: NIM4CM01) NIM with Software version 1.3.2

  Software anomaly was identified.

• 2022-06-02Open, ClassifiedSoftware Design Change

  NIM Vital Patient Interface 4.0 (P/N: NIM4CPB1) NIM with Software version 1.3.2

  Software anomaly was identified.

• 2017-05-22Open, ClassifiedUse error

  Nexstim eXima NBS System Software version 2.2 or higher. The Nexstim Navigated Brain Stimulation System (NBS System) is indicated for noninvasive mapping of the primary motor cortex of the brain to its cortical gyrus. The NBS System provides information that may be used in the assessment of the primary motor cortex for pre-procedural planning. The NBS System is not intended to be used during a surgical procedure. The NBS System is intended to be used by trained clinical professionals.

  Software defect: the NBS software may accidentally generate duplicate copies of one or several files.

• 2017-05-22Open, ClassifiedUse error

  NBS System 4 (sw version 4.0 or higher), Software update to 4.3.3 and NBS System 5 (sw version 5.0 or higher), Software update to 5.1.1. The Nexstim Navigated Brain Stimulation System (NBS System) is indicated for noninvasive mapping of the primary motor cortex of the brain to its cortical gyrus. The NBS System provides information that may be used in the assessment of the primary motor cortex for pre-procedural planning. The NBS System is not intended to be used during a surgical procedure. The NBS System is intended to be used by trained clinical professionals.

  Software defect: the NBS software may accidentally generate duplicate copies of one or several files.

• 2016-02-17TerminatedDevice Design

  MEE-1000A Neuromaster, Model No. Accessories: MS-110B (Electric Stimulation), MS-120BK (Current Stimulator Box) JB-116B, JB-132B (Amplifiers) Electromyography. (EMG)

  The MEE-1000A Neuromaster had defective printed circuit boards (PCBs). Gas arrestors on these boards which were intended to provide protection from electrostatic discharge failed to prohibit unintentional current flow.