Clinical Benefits - PROTEOR DYNACITY Instrucciones De Uso

C. Mechanism of action
At heel strike, only the rear part of the plantar keel is in contact with the ground. The deformation of the plantar keel and of the
intermediate blade absorbs the loading that occurs at the start of the stance phase. The Poron wedge absorbs the contact noise or
vibration generated at the interface between the large blade and the plantar keel.
As the stance phase progresses, the plantar keel flattens onto the ground; at midstance, only the intermediate blade is deformed, then
the upper blade comes into play to allow a gradual roll-over until heel-off.
At heel-off, only the front part of the plantar keel is in contact with the ground; at toe-off, the energy stored when deforming these
blades is returned to create an impulse.
The combination of the three split blades allows inversion/eversion of the foot.
3. INTENDED USERS/INDICATIONS
This medical device is supplied to healthcare professionals (prosthetists/orthotists) who then instruct the patient in how to use it. The
prescription is drawn up by a doctor. The doctor works with a prosthetist/orthotist to assess whether the patient is suited to using the device.
This device should be used on ONE PATIENT ONLY. It must not be reused on other patients.

4. CLINICAL BENEFITS

The device provides optimal comfort and safety for below-knee and above-knee amputees walking at normal speeds over smooth or uneven
ground.
5. ACCESSORIES AND COMPATIBILITIES
The foot incorporates a male pyramid link that allows it to be used with female pyramid connectors (refer to our catalogue).
The heel height can be adjusted from 0 to 20 mm.
6. ASSEMBLY AND FITTING TO THE PATIENT
A. Assembly
Place a block under the foot whose thickness corresponds to the height of the shoe's heel.
Secure the female pyramid connector to the foot, positioning its axis perpendicular to the
ground.
Tighten the connector's screws to the specified tightening torque.
B. Aligning
Align the device such that the load line passes through the posterior of the foot, 1/3rd of the length from the back.
Centre of coxofemoral
joint
Centre of knee joint
Load line:
≈ 12 mm in front of the
axis of the pyramid, ± 5
mm
•
For a more dynamic alignment, increasing the plantar flexion improves the energy return at step completion.
•
If, during roll-over, the patient feels that their foot is too long, or if the heel strike is too soft, the foot should be moved in the
posterior direction with respect to the socket.
INSTRUCTIONS FOR USE
This device is exclusively intended to be used as orthopaedic equipment for an above-knee or below-knee
amputee whose activity level is low-medium or normal (2 or 3).
Maximum weight (including carried load): 125 kg
Designed to accommodate a heel height of 0 to 20 mm.
1/3 2/3
Knee fully
extended
Axis of the connector
Heel H
Vertical axis passing through
the centre of the socket at
the knee and the pyramid
Front view:
the axis passes between
the first and second toe
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