Secondhand Nihon Kohden Neuropack S1 MEB-9400K EMG Device

Objective AI Report

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Report date: 21.08.2025

Nihon Kohden Neuropack S1 EMG EP System Analysis Report

Overview and Device Identification

The images display a complete electromyography (EMG) and evoked potential (EP) measurement system mounted on a wheeled medical cart. The system is a medical device set used for neurophysiological diagnosis. The main components of this set include the Nihon Kohden Neuropack S1 model EMG/EP main unit, a “Neuropack” branded external stimulator/amplifier box, an HP brand monitor, an HP brand desktop computer case, and a Logitech brand keyboard. All this equipment is placed on a wheeled stand, facilitating transportation.

The product’s brand is clearly visible as “Nihon Kohden” on the main unit, and the model is read as “Neuropack S1”. These devices are used for evaluating nerve and muscle functions. The general design of the devices and their labels suggest that they are an original product set.

Quantity Information and Accessories

The breakdown of the products and accessories shown in the images is listed below:

• 1 unit of Nihon Kohden Neuropack S1 main console unit
• 1 unit of “Neuropack” brand 2-channel stimulator/amplifier unit
• 1 unit of HP brand monitor
• 1 unit of HP brand computer case
• 1 unit of Logitech brand keyboard
• 1 unit of wheeled transport cart
• Various electrodes, interconnect cables, and sensors
• New sensors and cables in their original packaging
• CDs/DVDs containing software or drivers

Various cables and sensors accompanying the system are visible. The presence of new, unopened accessories, in particular, indicates that some components of the set have never been used. Numerous connection ports are present on the front and back of the devices, and these ports appear clean and undamaged.

General Condition and Assessment

Although a used product, the device set is generally in good cosmetic condition. No significant physical damages such as severe impacts, dents, or cracks are observed on the products. Having apparently been used in a medical environment, the set gives the impression of having been regularly maintained and carefully used. The overall cleanliness of the device is also good.

Physical and Mechanical Assessment

There is a slight yellowing on the white parts of the main unit and other plastic components, which can occur over time. This is merely a cosmetic detail that does not affect the device’s functionality. The buttons, control wheels, and keyboard keys on the devices appear intact and undamaged. The wheels and mechanical components of the transport cart also have a functional appearance.

Electronic Components and Screen Analysis

No burns, leakage, or obvious damage have been detected on the externally visible parts of the system’s electronic components. The monitor screen is off and shows no scratches or stains. Therefore, an analysis cannot be performed via the screen. The connection sockets on the stimulator unit and the ports on the main unit appear clean and problem-free.

Label Information

The following information can be read from the label on the packaging of one of the accessories:

• REF Code: Y010A
• CE Mark: CE 0123

Other detailed information, such as serial number or manufacturing date, is not accessible from the images.

Potential Risk Assessment

During the examination of the images, no significant risk factors that would jeopardize the device’s functionality were observed. No findings such as crushed cables, deep cracks in the casing, or burn marks on electronic circuits, which could potentially cause malfunctions, were encountered. The good overall condition of the device suggests that it can continue to be used regularly. The discoloration in the plastic components is purely cosmetic and has no effect on the device’s performance.