Allux 2

• World's First and Only Polycentric Swing and Stance Phase Microprocessor Controlled Knee Joint

• The 4-bar linkage shortens the length from the center of the knee to the foot during swing phase, thus the increased clearance between the ground and foot minimizes the risk of stumbling.

• Compared to single-axis knee joints, ALLUX's increased foot clearance provides users with more anatomical and safe walking and minimizes the risk of back pain.

• When the user takes a sitting position, thanks to ALLUX's 4-bar structure, the joint center remains almost equal in length to the sound side. This provides a more natural appearance compared to single-axis joints.

• When the knee reaches full flexion, the 4-bar structure provides a flexion angle of up to 180 degrees. ALLUX ranks first among microprocessor-controlled knee joints with this feature.

• The resulting 180-degree deep angle provides more functional positioning when sitting or compared to amputees using single-axis knee joints.

• The instantaneous center of rotation is closer to the hip joint, making it easier to control the knee joint.

• The knee joint may have difficulty controlling stabilization during the Yielding function. However, the 4-bar structure provides easy control of the knee joint.

• The microprocessor controls the hydraulic cylinder and creates a very smooth swing phase at different walking speeds. It provides a very comfortable transition from stance phase to swing phase.

• The initial swing phase is very smooth when the foot lifts off the ground.

• The 4-bar structure allows more natural and anatomical walking compared to single-axis joints.

• Safety lock: ALLUX has the ability to lock when held in a bent position for a few seconds. This feature helps amputees transfer their weight to the prosthetic leg, helping the sound leg to rest. It is also used in many activities such as squatting position, carrying heavy objects and standing for long periods.

• ALLUX has safety systems developed to prevent stumbling. It is programmed to detect fixed knee position to respond to abnormal situations. If the foot gets caught on an obstacle during swing phase, ALLUX detects abnormal conditions and increases flexion resistance to prevent collapse. Thus, it provides safer walking.

• Yielding Function (Controlled flexion) helps users easily and anatomically descend and ascend stairs and ramps. No special movement is required to activate the yielding function. With the 4-bar design, it easily adapts to stair and ramp descent and ascent. https://youtu.be/VZrLu-q4QkE