2 Pieces Secondhand Ottobock Below the Knee Leg Prosthesis

Objective AI Report

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Report date: 06.03.2026

Ottobock Skeo Skinguard 6Y75 Liner and Lower Extremity Prosthesis Set Analysis Report

Device Identification

The analyzed images show medical products used for post-amputation rehabilitation and mobilization. The current set consists of 2 cosmetically covered lower extremity prostheses, 3 silicone liners (stump sleeves), and the original storage box for the liners. The products are designed to provide stump comfort for prosthesis users and facilitate walking function.

Brand and Model

Upon detailed examination of the accessories (liners) in the images, the following brand and model information has been definitively identified:

• Brand: Ottobock
• Model: Skeo Skinguard | 6Y75

Since the outer surface of the prosthetic legs is entirely covered with cosmetic foam and an aesthetic sleeve, the brand of the pylon, modular adapters, or foot modules (carbon foot, etc.) used in the internal structure could not be identified from the visual data. The identified brand/model information applies only to the liners and the box.

Authenticity

Upon examining the logo print quality, font characters, “Skeo Skinguard” model naming, and the original cardboard box design on the silicone liners, the products are assessed to be original Ottobock production. Packaging standards comply with manufacturer norms.

Areas of Use

These products are used in the field of orthopedic prosthetics and orthotics.
Prosthetic Legs: Provide mobilization for patients experiencing lower extremity loss (transtibial/below-knee or transfemoral/above-knee).
Liners (6Y75): Serve as an interface between the prosthetic socket and the patient’s residual limb (stump). They reduce friction, protect the skin, and provide suspension (grip).

Quantity Information

Total number of parts shown in the images:

• 2 Lower Extremity Prosthetic Legs (highly likely one right and one left side, with aesthetic sleeves)
• 3 Silicone Liners (1 in sealed packaging, 2 open)
• 1 Original Product Box (for liners)

Overall Condition

The set is a mix of used and unused (or very lightly used) components. While the prosthetic legs show significant signs of use, the condition of the silicone liners is near-new or very good.

Physical Deformation

• Prosthetic Legs: Significant tears, material loss, and openings are present in the upper (proximal) parts of the cosmetic foam covers, at the junction points with the socket. Adhesive marks and deterioration in the foam texture are observed. The aesthetic appearance is deformed. Slight abrasions are present on the toe details.
• Liners: No tears, deformation, or yellowing has been detected on the outer surface of the liners. The product inside the packaging is in brand-new condition.

Mechanical Components

At the distal ends (lower parts) of the liners, there is a metal, threaded “Pin” (connecting pin). These pins (locking liner system) provide mechanical suspension in locking system prostheses. No rust, bending, or thread damage is observed on the pins; they are in a suitable condition for mechanical connection.

Electronic Components

The available visuals only show the cosmetic outer surfaces and passive silicone components of the prostheses. There is no visual data regarding any active electronic components such as an electronic knee joint or a microprocessor-controlled ankle.

Accessories and Socket Analysis

• Pin System: Stainless steel pins integrated into the end of the liners are present. They appear compatible with standard shuttle-lock mechanisms.
• Packaging: One liner is inside a transparent sealed bag belonging to the manufacturer.
• Cosmetic Sleeves: Skin-colored cosmetic sleeves are present on the prostheses but are worn out.

Label Information

Information identified on the textile surface of the liner and on the packaging:

• Brand Logo: ottobock.
• Product Series: Skeo Skinguard
• Model Reference: 6Y75
• Box Description: Liner, Schutzhülle für Stumpf, Protective sock for residual limb

Size and Compatibility

Although the size measurement of the liners (e.g., 265mm, 280mm) is not directly legible in the visuals, their forms suggest suitability for adult use. They are compatible with pin (locking) socket systems.

Existing Fault

The liners are functionally sound. However, there is a loss of integrity in the cosmetic covers of the prosthetic legs. While this condition does not affect the prosthesis’s mechanical walking function, it may cause aesthetic flaws and friction problems with clothing. A torn foam cover falls into the category of a “cosmetic fault”.

Potential Fault Risk

Since the internal mechanical skeleton (modular parts) of the prosthetic legs cannot be inspected due to the cosmetic cover, no comments can be made regarding joint play or loose screws. However, the fragmented cosmetic cover can expose the internal mechanism to dust and dirt, potentially increasing the risk of wear on mechanical parts in the long term.