Prosthetic Knee Joints

USMC A5 Prosthetic Knee

USMC A5 Prosthetic Knee
USMC A5 Prosthetic Knee
USMC A5 Prosthetic Knee
USMC A5 Prosthetic Knee

Product Characteristics

  • Unique Extension / Flexion dual air-pressure control system, capable of changing walking speed according to user’s demand, bring you a natural and smooth gait.
  • The knee’s swinging and bending is more close to the human knee joint, more natural gait.
  • Multi-axial knee joint design to achieve balanced load for the rotary bearing in the stance phase and much extend the knee life.
  • Unique full-sealed needle bearing knee joint design which differs from the current conventional ball bearing or bushing design on the market.
  • Wide flexion angle design providing more convenience for the users. Flexion angle about 160 degrees.

Weight Rating: 125kg
Height: 190mm
Material: Alloy light aviation
Bending Angle: 160°
Weight: 650g

Additional Information: Click to open the “PDF USMC A5 Instructions”.


USMC X4 Prosthetic Knee

USMC X4 Prosthetic Knee
USMC X4 Prosthetic Knee
USMC X4 Prosthetic Knee
USMC X4 Prosthetic Knee

Product Characteristics

  • The EBS function means prosthetic knee operation safety in varied flexion angles. It provides 0-15 degree flexion shock absorption for the prosthetic knee joint when walking in order to make the gait cycle more comfort and graceful for the patients. The unique double EBS function help achieve easy and smooth down slope walking in sophisticated road conditions and eliminate the ground shocking to the residual limbs, making the walking more comfortable.
  • Incorporates a unique knee joint locking function imitating the human knee joint to ensure that the prosthetic knee operates safely in heel strike phase and stance phase like a human knee. In take-off phase, the prosthetic knee can imitate the human knee function to unlock the knee joint and walk easily and naturally with knee flexion.
  • Longer, heavy-duty dual-cylinder design capable of individual adjustment to extension damping and flexion damping according to a specific user’s condition to minimize the physical energy consumption, improve the gait and increase the walking ability for the patients.
  • Multi-axial knee joint design to achieve balanced load break for the rotary bearing in the stance phase and substantial increase in service life of the knee joint body.
  • Differentiated full-sealed needle bearing knee joint design that differs from the conventional ball bearing or bushing design currently available on the market.
  • Applicable to weight limit of 136kg, especially for the amputees of larger body weight and/or higher labor intensity.
  • Wide flexion angle design providing more convenience for the users.

Weight Rating: 136kg
Height: 242mm
Material: Alloy light aviation
Bending Angle: 145°
Weight: 999g

Additional Information: Click to open the “PDF USMC X4 Instructions”.


USMC X5 Prosthetic Knee

USMC X5 Prosthetic Knee
USMC X5 Prosthetic Knee
USMC X5 Prosthetic Knee
USMC X5 Prosthetic Knee

Product Characteristics

  • Patented interference resistant bionic lock design providing effective solution to the safety problem of uneven-surface walking and down-slope walking; smooth shift from stance phase to swing phase; screening all interferences that may have impact on walking to achieve easy and natural walking.
  • External double-pressure heavy-duty air cylinder design to achieve faster acceleration, more efficient heat radiation, more smooth and powerful joint swing, yielding a smooth and complete gait cycle for both slow and fast walking.
  • Extra-thin knee curve connection piece, the ideal one for patients of extra-long residual limbs and knee disarticulation, etc, making them look like healthy person in sitting or standing poses.
  • Multi-axial structure to increase the knee joint service life by more than three times compared with conventional knee joint.
  • Movable knee-top quadrangular pyramid connection disc, capable of translating the body gravity line by +/-5 mm.

Weight Rating: 100kg
Height: 210mm
Material: Aero metal
Bending angle: 150°
Weight: 910g

Key Features:

  • High-power pneumatic cylinder
  • Socket connector options
  • Polycentric with geometric locking
  • 5mm A/P M/L shift 360° rotation
  • Large 150°flexion range
  • Adjustable stance release setting
  • Adjustable stance flexion
  • Adjustable geometry

Additional Information: Click to open the “PDF USMC X5 Instructions”.


USMC X6 Prosthetic Knee

USMC X6 Prosthetic Knee
USMC X6 Prosthetic Knee
USMC X6 Prosthetic Knee
USMC X6 Prosthetic Knee

Product Characteristics

  • Interference resistant bionic lock design providing effective solution to the safety problem of uneven-surface walking and down-slope walking; smooth shift from stance phase to swing phase; screening all interferences that may have impact on walking to achieve easy and natural walking.
  • External double-pressure heavy-duty air cylinder design to achieve faster acceleration, more efficient heat radiation, more smooth and powerful joint swing, yielding a smooth and complete gait cycle for both slow and fast walking.
  • Extra-thin knee curve connection piece, the ideal one for patients of extra-long residual limbs and knee disarticulation, etc, making them look like healthy person in sitting or standing poses.
  • Multi-axial structure to increase the knee joint service life by more than three times compared with conventional knee joint.
  • Movable knee-top quadrangular pyramid connection disc, capable of translating the body gravity line by +/-5 mm.

Weight Rating: 125kg
Height: 215mm
Material: Alloy light aviation
Bending angle: 150°
Weight: 1050g

Additional Information: Click to open the “PDF USMC X6 Instructions”.