Secondhand Nihon Kohden Cardiolife TEC-7621K Monitor Defibrillator

Objective AI Report

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Report date: 26.02.2026

Nihon Kohden Cardiolife TEC-7621K Defibrillator Analysis Report

Device Description and Brand Identification

The medical device examined in the visuals is a defibrillator (electroshock) unit. Branding and model information on the product has been identified as follows:

• Brand: Nihon Kohden (Logo/text is present on the front panel’s upper left corner and on the screen).
• Series: Cardiolife.
• Model: TEC-7621K (Clearly written in the label area above the energy selection knob).

The device is a portable emergency response monitor and defibrillator, likely featuring biphasic waveform technology (understood from the 360J energy setting).

Originality and Place of Manufacture

The product casing, keypad layout, Nihon Kohden’s distinctive color palette (orange paddles, purple control panel, cream casing), and label fonts reflect original manufacturer standards. The print quality and assembly of the “TEC-7621K” label appear to be original factory output.

Areas of Use

This device is designed for use in emergency rooms, ambulances, intensive care units, and operating theaters. Its primary functions include:

• Applying electrical shock in cases of ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT) (Defibrillation).
• Monitoring patient heart rhythm (ECG monitoring).
• Synchronized cardioversion procedure.
• Use of AED (Automated External Defibrillator) mode.

Component and Quantity Information

The hardware content identified in the visual is as follows:

• 1 Unit of Nihon Kohden TEC-7621K Main Unit.
• 1 Pair of External Defibrillator Paddles – Mounted on the casing, with orange handles, marked as “Apex” and “Sternum”.
• 1 ECG Patient Cable (Coiled on the main body, gray-colored, with a green connector).
• Spiral black energy cables connected to the paddles.

Physical and Cosmetic Condition

The device’s outer casing maintains its visual integrity. In the plastic area where the “TEC-7621K” model number is written and around it, there are fine surface scratches and light wear due to use. No significant yellowing is observed in the device’s overall body color (cream/beige), which suggests that light exposure has been at a reasonable level. In the lower left corner of the screen frame, a structure is observed that raises suspicion of slight deformation/gap in the plastic, although it is not clear whether it is a crack.

Mechanical and Interface Control

The mechanical components on the front panel are as follows:

• Energy Selection Switch: The large rotary switch is in place. The settings; “OFF”, “DISARM”, “AED”, “MONITOR”, “SETUP”, and energy levels (between 2-360 Joules) are clearly legible. The plastic condition of the knob is sound.
• Buttons: “SYNC”, “CHARGE/AED”, “DISCHARGE” (coded with numbers 2 and 3) and the screen-bottom menu buttons are physically complete. No erasure due to excessive use is observed.
• Paddle Slots: The orange paddles are fully seated in their slots. The trigger mechanisms on the paddles appear visually intact.
• Cable Connections: No external sheathing deformation, breakage, or tearing is observed in the black spiral cables of the paddles, especially at the strain relief points where they connect to the paddles. The gray insulation of the ECG cable is clean; no signs of breakage have been found.

Label and Information Analysis

An “OPERATION PROCEDURE” label containing usage instructions is present on the device’s upper left surface. The steps are:

1. Power on and energy mode selection.
2. Gel application and paddle placement.
3. Charging and shock application.

Additionally, “DANGER” and “WARNING” safety labels, with white text on a red background, are legible on the lower left side. These labels indicate that the device should not be used in environments with flammable anesthetic gases.

Screen Analysis

The device’s screen is off (black). There is no visual evidence of physical cracks, deep scratches, or ink bleeding (LCD bleeding) on the screen. The reflection is uniform.

Current Malfunction and Risk Status

As a result of visual analysis, no concrete malfunction that would prevent the device from operating (broken screen, severed cable, missing part) has been identified. However:

• Battery Status: As the battery is internal, it could not be visually inspected. However, considering it is an older model device, it is highly probable that the battery has reached the end of its life or experienced capacity loss.
• Blank White Area: Above the “TEC-7621K” text, there is a blank white rectangular area, believed to be where a previous label was located but has since been removed. This is not a malfunction but a cosmetic condition.

General Conclusion

The Nihon Kohden TEC-7621K is a device commonly found in the second-hand market, with a robust casing and no visible accessory deficiencies (paddles and ECG cable are shown). It exhibits normal cosmetic wear due to use, but there is no visual evidence of severe physical damage. Its functional status can only be tested by powering it on.