Orthopedic knee support OKD-39

adultwith strapfoam

Product overview:
The OKD-39 hinged knee brace with ROM adjustment is a Class I medical device designed to support the knee after injury, post-operative care or in degenerative conditions. Its 2-in-1 open design combines an open brace for easy application with an integrated kneecap donut to promote correct patellar tracking. An internal compression element stabilises the patellofemoral joint while slightly elastic materials provide therapeutic compression and reduce inflammation.

Key features:

• 2-in-1 open concept: fits without removing footwear, suitable for users with limited mobility or swelling.
• Internal compression element for patellofemoral stabilisation and targeted compression.
• Stable side splints with 2RA Precision double-axis anatomical hinges enabling natural joint motion and adjustable ROM stops.
• Anatomic shape and reinforced Velcro strap system for custom fit and anti-slip performance.
• Permanently sewn 3D condyle pads for pressure relief; additional adjustable 3D grafting pad for gap filling between condyle and splint.
• Breathable, skin-friendly materials to allow moisture escape and comfortable prolonged wear.

Intended use / Purpose:

• Osteoarthrosis (OA)
• Chronic knee instability
• Ligament injuries (ACL, PCL, LCL, MCL)
• Post-operative and rehabilitation support (ligament reconstruction, joint replacement)

Size chart:
Size | (A) Thigh circumference 15 cm above center of patella | (B) Calf circumference 15 cm below center of patella | How to measure
S | 40-44 cm | 30-34 cm | see measuring reference
M | 44-48 cm | 34-38 cm | see measuring reference
L | 48-52 cm | 38-42 cm | see measuring reference
XL | 52-56 cm | 42-46 cm | see measuring reference
XXL | 56-60 cm | 46-50 cm | see measuring reference

Fits both knees. Total product length: 44 cm.

Materials & comfort systems:

• Active3D™: thermoformed closed-cell foam — waterproof, sweat-resistant, easy to clean; available with self-gripping layers for shaping.
• AeroSpace™: distance-elastic 3D knit (polyester + spandex) — very lightweight, flexible and ventilated; reduces pressure from splints.
• ProFit™: double-layer multi-directional elastic fabric — external spandex for compression, inner microfiber/cotton/elastane for skin comfort; Oeko-Tex Standard 100 certified.

Technology & stiffenings:
2RA Precision splints: double-axis polycentric anatomical splints that mimic knee kinematics and maintain alignment with the joint axis. Coupling mechanism uses two elements moving on parabolic tracks. Flexion and extension angles adjustable via Allen screws; each brace includes an Allen key. Hyperextension block and flexion stops at 30°, 55°, 75°, 95°, 110°; extension options 15° or 75°. Standard splint lengths: 290 mm and 390 mm.

Additional product notes:

• Class I medical device.
• Double-sided, skin-friendly construction.
• Open design facilitates stair use, long walks and stroke rehabilitation; supports confidence and reduces re-injury risk.

Technical specifications:

• Product code / model: OKD-39
• Brand: 4medic
• UMDNS Code: 18029
• Device class: Class I medical device
• Design: Open hinged knee brace with ROM adjustment and 2-in-1 kneecap donut
• Hinges: 2RA Precision double-axis anatomical hinges with adjustable flexion/extension stops
• Paddings: Permanently sewn-in 3D condyle pads + one adjustable 3D grafting pad
• Materials: Active3D™, AeroSpace™, ProFit™ (breathable, skin-friendly)
• Fastening: Velcro strap system for individualized fit
• Sizing: S, M, L, XL, XXL — thigh and calf circumference ranges as listed above
• Total length: 44 cm
• Fits both knees