Secondhand Cocoon CWS4000 Patient Warming Device

Objective AI Report

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Report date: 24.07.2025

Cocoon CWS 4000 Convective Warming System Analysis Report

Product Description and Intended Use

The device shown in the images is a Cocoon CWS 4000 model convective patient warming system. Such systems are used to prevent or treat hypothermia (a dangerous drop in body temperature) during or after surgical operations. The device maintains the patient’s body temperature by blowing temperature-controlled air through a flexible hose into specially designed single-use blankets (not present in the images). The adult human pictogram on the panel in the image indicates that the device is primarily designed for use on adult patients.

Brand and Model Information

The brand and model of the device in the image are clearly indicated on its front panel.

• Brand: Cocoon
• Model: CWS 4000

The quality of the logo and model name on the device suggests that the product is original. No signs of a counterfeit or fake product were found.

General Condition and Physical Assessment

The device appears to be generally lightly used and in very good condition. No serious deformation was detected during the physical inspection.

• Casing: The device’s white plastic casing is clean. No cracks, breaks, dents, or significant discoloration were observed. There is an integrated carrying handle on the casing, which appears to be sturdy.
• Hose: The white flexible air hose attached to the device and the blue connection connectors are also in good condition. No tears, crushes, or holes are visible on the hose.
• Cleanliness: The product has a generally clean and well-maintained appearance.

Technical Details and Control Panel

There is a control panel on the front face of the device. There is no digital display on the panel; control is provided by membrane buttons and LED light indicators. Since the device was powered off, it could not be tested whether the LED lights are functional. The information on the panel is as follows:

• Operating Modes: There are indicators for Standby and Ambient modes.
• Temperature Settings: There are five different temperature setting options: 34°C, 37°C, 40°C, 43°C, and 46°C.
• Automatic Step-Down: The phrase “AUTO AFTER 10 MINS” on the panel indicates that the device automatically lowers the temperature to 43°C after 10 minutes of operation at 46°C.
• Warning Indicators: There are warning lights for “FAULT ALARM” and “FILTER STATUS”.
• Label Information: No label containing information such as a serial number, REF code, or year of manufacture is visible in the images.

Accessories and Missing Parts

Apart from the device itself and the attached air hose, no other accessories are present in the image.

• Available Accessories: 1 main unit (Cocoon CWS 4000), 1 flexible air hose.
• Missing Accessories: Standard accessories such as the power cord, user manual, and patient warming blankets are not present in the images.

Potential Risk Assessment

In the visual inspection conducted, no obvious damage or wear (e.g., broken parts, crushed cables, rust) that could directly affect the device’s operation was detected. The device’s casing, hose, and control panel are in very good condition. Based on these observations, no immediate risk of failure arising from the device’s physical condition is foreseen. However, it is important to note that this report is not a guarantee that the device is fully functional electronically or mechanically, and it is only an assessment based on visual evidence.