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1B1-2 Meridium

1B1-2 Prothesenfuß Meridium Gesamtansicht

Reference number	1B1-2
User Weight Capacity	125 kg
Type of Feet	Microprocessor controlled

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Based closely on the natural human anatomy, the Meridium mechatronic prosthetic foot is movable not only in the ankle area, but also in the midfoot and toe region thanks to its additional axes.

Near-natural replication of the human foot thanks to polyaxial construction and extensive range of motion
Automatically adapts to slopes and uneven surfaces in real time
Intuitive Stance permits stable standing on level ground – and even on slopes
Reduced risk of stumbling and falling thanks to increased ground clearance in the swing phase
Lets user descend stairs safely with full-foot contact
Relief function provides a comfortable, more natural foot position when the user is sitting
Automatic heel height adjustment from 0–5 cm makes it easy to change shoes

Click on the red 'Hot spots' in the image for more information on this detail.

Ankle spring

Layers of extremely stable and 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-axis kinematics

The 4-axis kinematics enable especially good adaptation to natural movements while walking. Four axles flexibly connect the toe plate, foot and ankle with one another.

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, very good ground contact is guaranteed during rollover.

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.

IMU, angle and moment sensor

Movements and forces that occur are recorded by the IMU (inertial motion unit), angle and moment sensors. They provide important information to the microprocessor regarding the user’s situation and gait pattern in order to adapt the Meridium accordingly. This enables the differentiation between standing and walking on level ground as well as on stairs and ramps and the activation of the energy-saving functions, e.g. when sitting.

Hydraulics

The hydraulics control the plantar flexion and dorsiflexion of the foot independently of one another, thereby uniting flexibility and stability.

Part Number

3C88-2

Request information

Reclaim your way

Based closely on the natural human anatomy, the Meridium mechatronic prosthetic foot is movable not only in the ankle area, but also in the midfoot and toe region thanks to its additional axes.

Near-natural replication of the human foot thanks to polyaxial construction and extensive range of motion
Automatically adapts to slopes and uneven surfaces in real time
Intuitive Stance permits stable standing on level ground – and even on slopes
Reduced risk of stumbling and falling thanks to increased ground clearance in the swing phase
Lets user descend stairs safely with full-foot contact
Relief function provides a comfortable, more natural foot position when the user is sitting
Automatic heel height adjustment from 0–5 cm makes it easy to change shoes

Click on the red 'Hot spots' in the image for more information on this detail.

Technical data

Mobis level
Mobility grade	MG2, MG3
Amputation level	TF, KD, TT, bilateral TT
Weight [with footshell]	1275–1555 g
User Weight Capacity	125 kg
Heel height	0–50 mm
Range of motion	36,5° [22° PF, 14,5° DF]
Battery capacity	1 day
Sizes	24–29 cm
Feature	Hydraulic foot with 4-axis kinematics, Relief function, Intuitive Stance, Stair function
Type of Feet	Microprocessor controlled
Adjustable modes	3 MyModes

Product versions

Model
Max. body weight	100 kg	100 kg	100 kg	100 kg	125 kg	125 kg	125 kg	125 kg	125 kg	125 kg	125 kg	125 kg
System height	132 mm	132 mm	132 mm	132 mm	142 mm	142 mm	142 mm	142 mm	145 mm	145 mm	145 mm	145 mm
Structural height	150 mm	150 mm	150 mm	150 mm	160 mm	160 mm	160 mm	160 mm	163 mm	163 mm	163 mm	163 mm