Secondhand Löwenstein Luisa LM150TD Home Mechanical Ventilator

Objective AI Report

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Report date: 03.12.2025

LÖWENSTEIN MEDICAL LUISA Respiratory Device Analysis Report

Device Identification

The main product shown in the visuals is a medical respiratory device, identified as an advanced home mechanical ventilator or life support unit. The device comes with a user manual, power adapter, respiratory circuit (hose set), and spare filter packages.

Brand and Model

Following a detailed examination of the product and the cover of the accompanying user manual, the brand has been clearly identified as LÖWENSTEIN MEDICAL and the model as LUISA. The phrases “Löwenstein Medical” and “LUISA” are legible on the front panel of the device. The user manual also features the model name “LUISA” and the phrase “Respiratory devices” in capital letters.

Authenticity

Upon examining the design details, screen quality, printing quality of the brand logo, and the details of the accompanying accessories (barcodes on the filter packages and Lowenstein Medical Technology GmbH labels), the product is assessed to be an original LÖWENSTEIN MEDICAL production.

Areas of Use

LUISA is a ventilator device manufactured to provide invasive or non-invasive (via mask or tracheostomy) respiratory support. It is suitable for the treatment of patients suffering from respiratory failure who require care in hospitals or at home. The manual states, “Instructions for use for patients suitable for TR LMT150TD type devices.”

Quantity Information

The visuals show the following parts in total:

• 1 LÖWENSTEIN MEDICAL LUISA respiratory device (main unit)
• 1 Power adapter
• 1 Power cable
• 1 Patient breathing circuit (Hose set and connectors)
• 1 User Manual (Turkish)
• 1 spare filter set with code WM 29652 (packaged)
• 1 spare filter set with code WM 29928 (in a sealed bag)

General Condition

The device appears to be second-hand and used. While its casing generally appears robust and clean, there are usage-related fingerprints, smudges, and slight dust accumulation, particularly on the touchscreen. The device’s overall condition can be described as “good” and in working order.

Physical Deformation

No visible cracks, breaks, or severe dents have been detected on the device’s white outer casing or the black screen bezel. However, the screen surface appears dirty; it cannot be clarified whether these are wipeable smudges or a permanent deformation without cleaning, but the appearance suggests the smudges are superficial.

Mechanical Components

The device’s carrying handle, air outlet port, side connection points, and bottom feet appear intact. No breakage or crushing is observed in the port connecting the respiratory circuit to the device or in the hoses themselves.

Electronic Components

The device’s electronic components are active. The visuals clearly show the device in operation and its screen illuminated. The green LED light on the power adapter is on, indicating that the adapter and power supply are functioning without issues.

Screen Analysis and Interface

The device’s large touchscreen is on, displaying a Turkish interface. The information on the screen is as follows:

• Date and Time: The screen shows the date as 03.12.2025 and the time as 10:23 or 10:24. This indicates that the device’s date setting is current (or that the visuals were taken on the specified date).
• Mode: The “V-SIMV” ventilation mode is selected in the upper left corner.
• Battery Status: A battery icon and “%84” charge level are visible at the top of the screen. The lightning bolt symbol next to it indicates that the device is currently charging.
• Graph: A graphical interface with a “Pressure” axis is active.
• Alerts: A yellow warning/alarm icon and a mute icon are visible in the upper right corner of the screen.
• Message: The bottom bar displays the text “Initiation of therapy.” A line over a propeller icon is present in the middle of the screen; this indicates that the device is currently in “Stand-by” mode and is not performing active ventilation.

Accessories and Label Information

The product includes consumables that appear to be original:

• Spare Filter Set 1: The packaging shows “REF WM 29652”, “Set 12 fine filters” and the date “2023-04” (It is not clear from the label whether this is a manufacturing or expiry date, but for such consumables, it usually indicates the manufacturing date). Manufacturer: Löwenstein Medical Technology.
• Spare Filter Set 2: The bag shows “REF WM 29928” and “Set, 2 air filters.”

Battery Status

The device has an internal battery. According to the on-screen indicator, the battery is 84% charged and is charging while the device is connected to power. The functionality of the battery has been visually confirmed.

Documents

The visuals include the Turkish “LUISA Respiratory Devices” user manual provided with the device. There is no visual evidence of a warranty certificate or invoice.

Potential Malfunction Risk

During the visual inspection, no rust, significant liquid contact marks, or cable deformations threatening the device’s physical integrity were observed. The device powering on and the screen illuminating suggest that the main board and power supply are healthy. However, apart from the smudges on the screen surface, no cosmetic or mechanical risk is apparent.