Reclaim your way.

Closer to the natural model than any other

The new Meridium prosthetic foot offers you a high level of security along with increased adaptability and a more natural motion sequence. The unique 4-axle design with hydraulic real-time control adjusts itself immediately to the user’s walking speed and ground conditions, whether on slopes, stairs or varying terrain. The relief function automatically lowers the forefoot to the floor when the user is sitting, providing a comfortable, more natural foot position. Thanks to the automatic heel height adjustment, the Meridium is suitable for various types of shoes. The inconvenience caused by frequent shoe changes is now a thing of the past. With the Meridium, you can quickly and easily adapt the heel height to your shoes, whatever the occasion.

Toe plate

The toe plate made from aluminium with an abducted big toe also forms the link between the carbon frame and the frontal pivot point of the hydraulics. Due to its mobility, extensive traction is achieved during rollover.

Ankle spring

Layers of extremely stable, ultra-light carbon fibre laminate connect the hydraulics in the foot with the pyramid adapter and enclose the electronics and battery in the ankle.

4-axle kinematics

The 4-axle kinematics enable particularly good adaptation to natural motion patterns when walking. Four axles flexibly connect the toe plate, foot and ankle with one another.


The hydraulics control the resistance and the motion of the foot (plantar flexion and dorsiflexion), thereby uniting flexibility and stability.

3D position, angle and moment sensor

Movements and forces that occur are recorded using highly precise 3D position, angle and moment sensors. They provide important information to the microprocessor regarding the situation and gait pattern in order to adapt the Meridium accordingly.

Frame and heel spring

The frame and heel spring made from carbon fibre stand out for their high stability and stiffness and also help to protect the hydraulics. The heel spring dampens the step at heel strike.

Electronics and battery

The battery and electronics are protected within the ankle area. The integrated microprocessor processes the sensor data and controls the hydraulics in real time.

Benefits at a glance

Ascending and descending slopes

Whether ascending or descending – thanks to the Meridium’s ability to adapt, you can master ground inclinations effortlessly from the very first step. Increased security thanks to more ground clearance when ascending, comfortable descending thanks to the adapted rollover and fast full-surface ground contact.

Walking on uneven terrain

The Meridium adapts to the terrain with every step. No matter whether cobblestones, lawns or forest paths – real-time adjustment and improved ground contact mean it offers a high level of stability over different types of terrain.

Going down stairs

The Meridium enables you to place your entire foot on the step as you go down stairs. Instead of thinking about the correct placement of your foot, you can concentrate on your surroundings.

Stable standing

The Meridium identifies intuitively when you are no longer moving and require a secure, stable stance – even on slopes or uneven terrain.

Relief when sitting

When sitting, the Meridium lowers itself to the floor, which achieves a more natural-looking foot position and can also help relieve your residual limb.

Automatic heel height adjustment

No matter whether barefoot, flat soles or heels – thanks to the automatic heel height adjustment, shoes can be changed quickly and easily.


1) The resistance is adjusted when the foot touches the floor to achieve a comfortable heel leverage according to the user’s stride length.

2) Based on the individually adjusted resistance, the speed at which the foot lowers itself immediately adapts to the gait situation with every step.

3) Thanks to the high degree of movability and real-time adjustment during rollover, you benefit from prolonged, full-surface contact with the ground for the greatest possible stability and excellent traction.

4) The movable toe plate provides a large contact surface and ensures uniform pressure distribution in the forefoot area when rolling over the toes. The Meridium’s four axles give you a smoother, more natural gait pattern when rolling over the foot.

5) When your foot lifts from the floor, it remains in a rolled over position and thereby offers an enhanced level of safety as you walk.


The Cockpit app - easy mobile control

The Meridium adjusts itself automatically to diverse situations. Using the convenient Cockpit app for Android, you can also easily adjust the Meridium via smartphone. The app can be used to change the heel height, for example, or to select from a range of preset MyModes. The app also displays additional information such as the charge level of your mechatronic prosthetic foot. Alternatively, simple motion patterns or the optionally available remote control can be used to carry out adjustments.


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Information for users

This brochure provides you as the user with complete information about the Meridium foot.

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Instructions for use

This product information is intended for users of the Meridium prosthetic foot.

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Information for technicians

In this brochure, you’ll find everything that you as a technician need to know about the Meridium.

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