1B1-2 Meridium

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

1B1-2 prosthetic foot Meridium Ankle spring
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.

1B1-2 prosthetic foot Meridium 4-axis kinematics
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.

1B1-2 prosthetic foot Meridium toe plate
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.

1B1-2 prosthetic foot Meridium frame and heel spring
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.

1B1-2 prosthetic foot Meridium Electronics and battery
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.

1B1-2 prosthetic foot Meridium IMU, angle and moment sensor
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.

1B1-2 prosthetic foot Meridium Hydraulics
Hydraulics

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

1B1-2
Part Number 3C88-2
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.

Product information

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
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
1B1-2
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

Videos