Secondhand Chattanooga Optiflex 3 Knee and Hip CPM Device

Objective AI Report

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Report date: 13.02.2026

Chattanooga OptiFlex 3 Knee CPM Device Analysis Report

Device Identification

The device examined in the visuals is a CPM (Continuous Passive Motion) device used in the field of medical rehabilitation, which enables passive movement of the knee joint. The device consists of a main motor unit, a sliding bed system where the patient’s leg is placed, and a hand control.

Brand and Model

As a result of detailed examinations of the device’s hand control and general design lines, the brand and model information has been definitively identified.

• Brand: Chattanooga
• Model: OptiFlex 3

This information has been verified, particularly through the “OptiFlex 3” inscription on the device’s wired hand control and the “chattanooga” logo located directly below the screen.

Originality

The product’s hand control design, screen placement, keypad structure, and the device’s metal slide system and motor body are in perfect compliance with the original Chattanooga OptiFlex series. No non-brand parts that were subsequently added or modified on the device have been visually detected.

Areas of Use

This device is used in the fields of orthopedics and physical therapy. It is particularly preferred in the following situations:

• Rehabilitation after total knee replacement surgeries.
• After anterior cruciate ligament (ACL) reconstruction.
• Relief of joint stiffness.
• Providing controlled flexion and extension movements of the knee joint.

Quantity Information

The visuals show 1 (one) main CPM device unit and 1 (one) hand control connected to this unit.

General Condition

The device is in used condition. It is evident that it is a second-hand product from the marks on its outer casing and signs of use. However, its structural integrity appears to be preserved.

Physical Deformations

There are some noticeable deformations in the device’s external cosmetics:

• Motor Housing (Gray Plastic Casing): The rear and side parts of the lower gray plastic body, which protects the device’s motor and electronic components, show intense friction marks, scratches, and stains. These marks indicate that the device has been actively used before and likely rubbed against the ground during storage or transport.
• Metal Rails: No significant rust or bending is observed on the metal slide rails where the leg moves, but light dust and usage dirt are present.
• Patient Pad Sections: The plastic leg supports appear robust, but may bear usage marks that might require cleaning.

Mechanical Components

The metal chassis, hinges, and slide system that form the device’s movable mechanism appear intact. The adjustment knobs (screw tightening mechanisms) are in place. Although the belt or shaft system that enables the slide’s movement is inside the housing and cannot be seen in detail, no mechanical integrity issues (broken parts, etc.) have been detected from an external view.

Electronic Components

The hand control, which is the electronic control unit of the device, is present in the visuals. Since its screen is in the off position, it is unknown whether there are any pixel errors. The spiral structure of the control cable generally maintains its form, but slight dirt accumulation may also be visible on the cable.

Accessories

The accessories in the visuals are as follows:

• Patient Kit (Pads): The device has plastic/spongy support units (white outer shell with black inner lining) called “Patient Kit” attached, which ensure patient comfort.
• Fixation Straps: Black Velcro straps are present, which secure the leg to the device. Signs of pilling are observed on the fabric of these straps.
• Control: An integrated wired hand control is present with the device.

Battery Status

This model operates standardly with mains electricity. There is no appearance or indication of an internal battery on the outer casing. However, the tip of the device’s power plug is not captured in the visuals; only the cable outlets are visible.

Label Information

Apart from the brand/model label on the hand control, the silver-colored manufacturer label containing technical data (serial number, voltage, etc.), likely located on the back or bottom of the device, is not in a position to be clearly read due to the shooting angle of the photos. Therefore, the specific serial number cannot be reported.

Screen Analysis

There is an LCD screen on the hand control. Since the device is off in the photos, no data, error codes, or menus are displayed on the screen. While no deep cracks are visible on the physical surface of the screen, it should be considered that there might be slight hairline usage scratches on the surface.

Size and Compatibility

The OptiFlex 3 model is a device designed for adult patients. Thanks to the adjustment knobs on the sides, the device’s leg length (femur and tibia distance) can be manually adjusted according to the patient’s height.

Year of Manufacture

Since the serial number label cannot be read, the exact year of manufacture cannot be determined from the visual.

Documents

No invoice, user manual, or warranty document belonging to the device is present in the visuals.

Usage Duration

Usage hour information can usually be read from the digital screen or technical service menu when the device is turned on. Since the device is off, there is no visual data regarding the total operating hours.

Existing Fault

In the visual inspection, no significant breakage (e.g., rail detachment, hinge breakage) that would prevent the device from operating has been detected. However, its electronic functionality could not be verified due to the screen being off.

Potential Fault Risk

The intense scratches on the product’s body (gray motor casing) indicate that the device may have sustained impacts during transport or use. While this may not have damaged the motor components, it has created cosmetic wear on the plastic casing. The connection points and bends of the spiral cables appear robust; however, assuming it is an old device, metal fatigue that may occur over time within the electronic cables should be considered a general risk factor. Its overall condition can be described as “heavily used but with preserved integrity.”