TK 4 Bar Linkage Knee with Socket Adaptor Polycentric Four-Bar Linkage Prosthetic Knee Joint – Stainless Steel, Proximal Long Plate Attachment, Male Attachments

The TK 4 Bar Linkage Knee with Socket Adaptor is a precision-engineered polycentric prosthetic knee joint designed to enhance stability, gait efficiency, and user confidence. Built with a durable stainless steel frame, this four-bar linkage mechanism provides a shifting instantaneous center of rotation—offering improved stance-phase stability and smoother swing-phase control.

Featuring a proximal long plate attachment, the knee joint allows secure integration with the prosthetic socket. The included male attachments ensure compatibility with standard prosthetic components, enabling reliable alignment and structural integrity in transtibial and transfemoral prosthetic systems.

Ideal for prosthetic clinics, orthopedic workshops, rehabilitation centers, and hospital procurement.

Key Features & Benefits

• Polycentric four-bar linkage design for enhanced stability

• High-strength stainless steel construction

• Improved stance control and smoother gait transition

• Proximal long plate attachment for secure socket fixation

• Male attachment system for versatile component compatibility

• Corrosion-resistant and durable finish

• Suitable for daily-use prosthetic applications

Clinical & Technical Advantages

• Enhanced knee stability during stance phase

• Reduced risk of knee buckling

• More natural gait biomechanics

• Improved toe clearance during swing phase

• Durable load-bearing performance

Technical Specifications

• Product Type: Polycentric 4-Bar Linkage Prosthetic Knee

• Material: Stainless Steel

• Attachment: Proximal Long Plate with Male Attachments

• Mechanism: Polycentric Four-Bar Linkage

• Application: Lower limb prosthetic systems (Transfemoral)