Otto Bock Defender Instructions For Use Manual page 17

Prosthetic foot too soft
• Very pronounced deformation of the
forefoot at high activity levels
5.1.4.1 Optimising the heel characteristics
The behaviour of the prosthetic foot at heel strike and during heel contact in
the mid-stance phase can be adapted with the placement of a heel wedge.
The heel wedge is attached with adhesive tape for testing. For definitive
assembly, it is glued to the prosthetic foot.
Fitting
1) Place double-sided adhesive tape (included) on the underside of the
heel wedge.
2) Place the heel wedge on the base spring in the recommended position.
3) Set the desired stiffness by shifting the heel wedge (anterior = harder,
posterior = softer).
INFORMATION: The heel wedge can be shortened on the top so it
does not touch the carbon spring and does not generate noise
while walking. A 2 mm gap between the heel wedge and carbon
spring is optimal.
Definitive assembly
1) Remove the adhesive tape from the heel wedge. This can be done using
a cloth with acetone.
2) Roughen the contact surface on the prosthetic foot slightly using sand­
paper. Remove the dust after sanding.
3) Glue the heel wedge to the prosthetic foot with contact cement.
6 Cleaning
Allowable cleaning agent: pH neutral soap (e.g. 453H10 Derma
>
Clean)
1) NOTICE! To avoid product damage, only use the allowable clean­
ing agents.
Clean the product with clear fresh water and a pH neutral soap.
2) If present: Remove dirt from water drainage contours using a toothpick
and rinse.
3) Rinse the soap away with clear fresh water. In doing so, rinse the foot­
shell until all dirt has been removed.
4) Dry the product with a soft cloth.
5) Allow to air dry in order to remove residual moisture.
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