Secondhand EMG Device Nihon Kohden Neuropack S1 MEB-9400K

Objective AI Report

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Report date: 09.01.2026

Neurophysiology (EMG/EP) Diagnostic System Analysis Report

Device Identification

The product in the image is a comprehensive medical measurement station integrated onto a mobile trolley. It is used for nerve conduction and muscle activity measurements, consisting of a monitor, control console, computer case, input devices, and an amplifier/stimulator unit mounted on an articulated arm. The waveforms and interface on the screen confirm that the device is an Electromyography (EMG) or evoked potential (EP) device.

Brand and Model Status

Upon examining the visuals, although the device’s distinctive white and blue color design language reflects the characteristic features of a specific manufacturer (such as the Nihon Kohden Neuropack series), the text containing the logo and model number on the image is not at a resolution that allows for 100% certainty and clear readability. Adhering to the principle of zero error and precision, the brand and model name have not been speculatively stated in the report because the texts are not clearly legible.

Areas of Use

This system is designed for use in Neurology and Physiology laboratories. Its main uses include:

• Nerve conduction studies (NCS) and diagnosis of nerve entrapments.
• Electromyography (EMG) tests for the diagnosis of muscle diseases.
• Evoked potential (EP) tests (examination of auditory, visual, and somatosensory pathways).
• Analysis of neuropathic disorders.

Quantity Information

While the system appears as a single integrated station, the countable primary components in the image are as follows:

• 1 Mobile Trolley
• 1 LCD Monitor
• 1 Main Control Console (Unit with knobs and buttons)
• 1 Amplifier/Connection Box Attached to an Articulated Arm
• 1 Keyboard
• 1 Mouse
• 1 PC/Processor Case (On the bottom shelf)
• 1 Under-monitor Module (Black unit)

Overall Condition

Based on visual inspection, the device is in a clean and well-maintained overall condition. It appears to be used in a hospital or clinic setting, and no signs of heavy use or wear are visible on its exterior. Cosmetically, it is in good condition and can be categorized as “used but clean”.

Physical Deformation and Cosmetic Examination

No visible cracks, breaks, deep scratches, or dents have been detected on the white metal and plastic components of the product. There is no rust or paint chipping on the metal frame profiles of the device. The colors on the surfaces (white and blue) retain their vibrancy, and no significant signs of yellowing are apparent.

Mechanical Components Analysis

There is no visible damage to the moving parts of the device (wheels, handle, drawers). The joints of the articulated mechanical arm holding the amplifier box on the left side appear sturdy. The trolley wheels are in place. The cable management is relatively neat, but the cable clutter behind the computer or in the lower sections is not fully visible.

Electronic Components and Screen Analysis

Screen Status: The LCD monitor is active, and its software interface is visible. The screen displays biological signal waveforms (EMG traces), estimated to be 4-channel, and menus with measurement parameters on the right side. While dead pixels or cracks on the screen panel cannot be discerned from the image, the clarity of the display indicates that the panel is intact.

Control Unit: The main control unit located beneath the monitor has two large rotary knobs (dials) and blue buttons in the lower row. The symbols on the knobs appear not to be faded. If there are illuminated warnings, their active status cannot be distinguished in the image.

Accessories and Connection Ports

The essential peripherals required for the system to operate are present:

• Input Unit (Headbox): The front face of the suspended unit on the left arm features multiple socket inputs (DIN connectors). These sockets are where electrodes are attached and appear physically undamaged.
• Keyboard and Mouse: A standard black QWERTY keyboard and a wired mouse are placed on the device’s shelf.
• PC Unit: A black computer case is horizontally positioned on the bottom shelf. It has drive bays on its front panel.

Battery and Power Status

As the product is a desktop/station-type device, its primary power source is mains electricity. It is not clear from the image whether an internal battery (UPS, etc.) is present. There are no signs of battery swelling or leakage.

Potential Malfunction Risk

The images do not show any physical defect that would prevent the device from operating, nor any screen displaying an “Error” message. There are no crushes or breaks in the visible parts of the cables. The device’s condition is reassuring; however, aside from the possibility of slowdown due to the age of the underlying computer hardware in second-hand medical electronic devices, no visual-based malfunction risk has been detected.