Secondhand Smith Nephew Optima Knee and Hip CPM Device

Objective AI Report

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Report date: 03.03.2026

Smith + Nephew Prima+ CPM Device Analysis Report

Device Identification and Description

The product analyzed in the visuals is a motorized Continuous Passive Motion (CPM) device, designed for the knee and hip joints, used in lower extremity orthopedic rehabilitation. The device consists of a beige plastic main body, a turquoise painted metal chassis, and fabric-covered support pads used to secure the patient’s leg.

Brand and Model Information

Findings based on visual data on the control panel and device body:

• Brand: Smith + Nephew (The text “Smith+Nephew – Leadership in Worldwide Healthcare” is present on the panel).
• Model: Prima+ (The model name is legible on the turquoise label on the body).
• Series: The device exhibits “Prima+” series design features (analog control panel, chassis structure).

Areas of Use

This device is used in orthopedic and physical therapy clinics or home care settings for the following purposes:

• To maintain and increase the range of motion (ROM) of joints after knee replacement or cruciate ligament surgeries.
• To reduce post-surgical edema and prevent calcification.
• To improve muscle and joint functions through passive exercise.

General Condition and State

The device is a used unit showing signs of intensive use. Its general condition is moderate-to-low. While its mechanical integrity appears to be preserved, cosmetic wear is evident.

Physical Deformation and Wear Analysis

• Plastic Casing: The beige plastic housing (cover) on the lower part of the device shows significant yellowing and discoloration due to age. Superficial scratches caused by friction were observed on the edges of the housing.
• Control Panel Frame: The gray plastic frame (bezel) of the analog control unit exhibits deep scratches, dents, and paint abrasions.
• Panel Label: The blue-backed label (sticker) displaying control parameters is peeling from its edges, deformed, and has started to detach from the body in places. Its surface integrity is compromised.
• Fabric Pads: The grey/dark grey wool fabric pads on the leg support units are soiled, faded, matted (felted), and worn due to prolonged use. Replacement may be necessary for hygiene reasons.

Mechanical and Structural Components

No bending or fractures were detected in the turquoise-painted tubular metal chassis structure. The telescopic length adjustment rods (chrome-plated parts) and black plastic clamping screws (knobs) are in place. The connection points and hinges of the metal chassis visually maintain their integrity. The numbered scale (centimeter/inch) on the length adjustment rod is legible.

Electronic Components and Control Panel

The device is an analog-controlled model; there is no digital display. The controls on the panel are as follows:

• Speed Adjustment (Speed): A rotary potentiometer symbolized by Turtle and Rabbit icons, with 1 to 5 settings. The knob is present.
• Flexion (Bending) Limit: A rotary knob offering adjustment between -5 degrees and 115 degrees. Indicated by a “bent knee” icon. The knob is present.
• Extension (Straightening) Limit: A rotary knob offering adjustment between -5 degrees and 115 degrees. Indicated by a “straight leg” icon. The knob is present.
• Indicator Lights (LED): Power/Operation (Green), Service/Maintenance wrench icon (Yellow), Warning/Exclamation icon (Red) indicators are present.

Accessories and Cable Condition

• Hand Remote Control: A black, wired, single-button (likely Start/Stop or Panic button) hand remote control is present on the device. The remote’s cable is not coiled; it is a straight black cable and appears sturdy.
• Power Cable: The device’s main power cable or power input socket is not clearly visible in the images; the hand remote control cable is wrapped over the panel.

Originality and Modification

The product is an original manufactured device, evidenced by the Smith + Nephew logos, the characteristic Kinetec/Prima series design language, and part quality. No foreign parts (excluding knobs) added later were observed.

Quantity Information

The report analyzes a single (1) integrated CPM device and a single (1) hand remote control attached to the device.

Current or Potential Risk Analysis

The peeling label on the device’s control panel may increase the risk of liquid or dust ingress. The hygienic condition of the fabric components may require thorough cleaning or replacement before direct contact with patient skin. Although there is no visible damage at the chassis’s joints, lubrication might be needed.