Secondhand Löwenstein Luisa LM150TD Home Mechanical Ventilator

Objective AI Report

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Report date: 18.12.2025

LÖWENSTEIN Medical LUISA Home Ventilator Analysis Report

Device Identification, Brand and Model Analysis

During the detailed visual inspection, the product subject to analysis was identified as an advanced home mechanical ventilator (respiratory device). Upon examining the logos and typographical elements on the front of the device, its carrying case, and the accompanying user manual, it has been definitively established that the product’s brand is LÖWENSTEIN Medical and its model is LUISA. Furthermore, the user manual cover states “For devices of this type: LM150TD”; this code can be verified as the product’s technical model reference. The product is a portable and compact life support unit, specifically designed for patients requiring home care.

Usage Statistics and Screen Data

The “Device usage” menu displayed on the device’s touchscreen provides clear numerical data regarding the product’s history. According to the data obtained from the visuals, the device’s usage status is as follows:

• Total Usage Time: 692 hours 24 minutes.
• Number of Days Used: 30 days.
• Average Daily Usage: 1385 minutes/day (This data indicates that the device was active for an average of 23 hours a day over the 30 days it was used, meaning the patient underwent an intensive treatment process, almost entirely dependent on the device).
• High Flow Therapy Usage: 0:00 hours (This mode appears to have never been used).
• System Date: The date shown on the screen is 28.11.2025, at 16:50.

Status, Condition, and Originality

The product, in terms of its general appearance, is in “lightly used” and clean condition. A total operating time of 692 hours is a very low duration for this type of ventilator device, which typically has a lifespan of tens of thousands of hours, indicating that the device is technically almost new. No cracks, breaks, dents, or deep scratches were observed on its casing. Although there are fingerprints and dust on the screen surface due to use and transport, there is no deformation that compromises the panel’s integrity. All labels, logos, and the quality of the screen interface conclusively prove that the product is original.

Technical Hardware, Ports, and Connections

Upon inspecting the device’s side panel, it is observed to have advanced monitoring features. The following connection points and features have been identified on the panel:

• Air Outlet Ports: Main respiratory hose outlet and a smaller connection port for the measurement/trigger line immediately below it.
• Sensor Ports: On the side, there are three special socket inputs protected by black caps. “SpO2” (Blood oxygen saturation measurement), “CO2” (Carbon dioxide measurement), and “Neb” (Nebulizer connection) labels are visible on them. The caps being in place and secure indicates that these ports have remained clean.
• Interface Icons: In the upper bar of the screen, the battery status (94%), Bluetooth connection icon, and alarm mute indicators are actively displayed.

Accessories and Package Contents

The accessories provided with the device in the visuals are as follows:

• 1 LÖWENSTEIN Medical LUISA Device: Main unit.
• 1 Carrying Case: Black, with the brand logo, an original shoulder-strap bag specially designed to protect and transport the device and its accessories.
• 1 Respiratory Circuit (Hose Set): Transparent, appearing unopened within its sealed packaging, a respiratory hose set.
• Power Adapter and Cable: The black power block necessary for charging the device and operating it with mains electricity.
• User Manual: Turkish documentation titled “TR Instructions for Use for Patients” inside a transparent file.

Electronics and Battery Status Analysis

The device’s screen is functional, and the displayed warning messages confirm the health of the electronic components. In one visual, a yellow warning banner on the screen states: “Mains power supply disconnected – Device in battery mode”. This situation proves that the device can detect a power outage and its internal battery activates (at 94% charge in the visual) to power the system. This is a vital functional test for a portable life support device, and the device has successfully passed this test in the visual. It is understood from the visuals that touchscreen menu transitions are possible.

Areas of Use

LÖWENSTEIN LUISA is used for patients requiring mechanical ventilation in a home environment or mobile situations. It is a versatile device capable of providing both invasive (e.g., tracheostomy) and non-invasive (with a mask) respiratory support. According to the port details in the visual, it not only provides air but also has the infrastructure to monitor the patient’s SpO2 and CO2 values with optional sensors.

Potential Malfunction Risk and Conclusion

No “System Error” or hardware malfunction codes are observed in the visuals. The “581” code and the yellow warning displayed on the screen are not a malfunction, but an informational alert indicating that the plug has been disconnected. No physical damage (e.g., water contact marks, burns, broken ports) is present. No crushing or fraying was observed on the cables. Considering the device’s low operating hours and clean cosmetic condition, the potential malfunction risk is low, and its overall condition is very good for use.