Secondhand Nihon Kohden Neuropack S1 MEB-9400 EMG Device

Objective AI Report

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Report date: 17.11.2025

Nihon Kohden Neuropack S1 EMG EP System Analysis Report

Overview and Device Identification

The visuals show an electromyography (EMG) and evoked potential (EP) measurement system mounted on a wheeled medical cart. The system consists of a main control unit, an external amplifier, a monitor, a keyboard, a mouse, a printer, and various accessories. The primary function of the product is to measure and analyze electrical activities in nerves and muscles to assess neurological and muscle functions. It is a professional equipment used in medical diagnosis and research fields.

Brand and Model Information

Upon detailed examination, the brand and model information of the system components has been identified as follows:

• Main EMG/EP Device: According to the clearly legible markings on it, the brand of the device is Nihon Kohden, and the model is Neuropack S1.
• Amplifier/Stimulator: The unit standing on a wheeled and adjustable stand is branded Neuroscreen. The inscription “Neuropack” is also present on it.
• Monitor: The screen connected to the system is branded Dell.
• Keyboard and Mouse: The keyboard and mouse are branded Logitech.

Originality and Purpose of Use

The brand logos, font styles, placement of control buttons, and overall craftsmanship quality on the product give the impression that it is an original product of the Nihon Kohden brand. This system is used by neurologists in the diagnosis of nerve compressions, muscle diseases, and various neuromuscular disorders.

Quantity Information and System Components

The total breakdown of the products and accessories in the visuals is listed below:

• 1 unit of Nihon Kohden Neuropack S1 main unit
• 1 unit of Neuroscreen amplifier/stimulator mounted on a wheeled stand
• 1 unit of Dell brand monitor
• 1 unit of Logitech brand keyboard
• 1 unit of Logitech brand mouse
• 1 unit of dual foot pedal (with “L” and “R” letters on them)
• 1 unit of printer (brand could not be identified from the visual)
• 1 unit of MTT 1008 coded power unit located on the bottom shelf
• 1 unit of wheeled medical cart with a keyboard tray, hosting the system
• Various connection and interface cables

General Condition and State Assessment

The device is generally a used product. While it bears some cosmetic elements indicating its age, no major and serious damage is observed. There is a noticeable yellowing on the plastic casing of the main unit, especially on the white and turquoise colored parts, which has occurred over time. It is understood that the equipment has been used in a professional environment and regularly maintained.

Physical Deformation and Mechanical Components

Upon examining the physical condition of the product, the following details have been identified:

• Main Unit: Apart from yellowing on the device’s casing, no cracks, breaks, or deep scratches are observed. The control buttons and keypad are physically in place and appear sturdy.
• Keyboard: Dust and dirt are present between the keyboard keys, indicating heavy usage.
• Medical Cart: There are small scratches on the metal and plastic parts of the cart due to usage, but its moving parts such as wheels and keyboard drawer appear to be in good working order.
• Other Components: No significant physical deformation is observed on the monitor, mouse, foot pedal, and Neuroscreen unit.

Electronic Components and Accessories

Since the device is not shown in working condition, no comments can be made regarding the functionality of its electronic components. However, the general condition of the cables and socket inputs appears good when viewed externally. Numerous connection ports are visible on the rear and side parts of the main unit. The foot pedal’s cable and connector are intact. Detailed information about the condition of the printer and the MTT 1008 coded power unit included in the system cannot be obtained from the visual.

Label Information

Since the labels on the products in the visuals are not clearly legible, specific information such as serial number, lot number, or REF code could not be obtained.

Potential Malfunction Risk

No visible malfunction (broken parts, error messages on screen, etc.) is present on the device. Although the yellowing on the main unit’s casing indicates the material’s age, this condition does not directly pose a functional malfunction risk. In heavily used accessories like the keyboard, issues such as keys not registering may occur over time, but this is an easily replaceable component. Generally, considering the current condition of the product, no serious or urgent malfunction risk is observed.