Otto Bock 17KF1 Series, Instructions For Use Manual, Page: 14 / 116

5 Preparing the product for use
Orthosis alignment
► Select suitable materials for the upper and lower leg areas to reduce the
torsional stress on the orthosis.
► Record the parts and lot number in the patient file to enable tracing in
accordance with product liability law.
► Use the 743Y57=1-6 alignment insert for the correct alignment of the
orthotic joints.
► The orthotic joints are produced with a standard 7° knee flexion angle.
When adjusting orthotic joints, do not exceed a knee flexion angle of 10°
for aluminium and 15° for steel.
► When using thermoplastic material, additional reinforcement is required
in the area of the thigh and calf.
Protect the product against environmental influences
►
Apply a protective coating to the aluminium bars or polish them slightly.
►
The steel that is used can rust. Apply a cover or paint to the product for
extra protection before handing it over to the patient.
Bending bars
► Align the bars with the bending irons without exposing the joint heads to
any bending load.
► The bending radius must be at least
20 mm.
The allowable bending
range is marked with a dotted laser line on the bars –
do not bend
inside that range
.
► INFORMATION: Limit the bending of bars to a minimum, as
excessive bending of bars can result in loss of stability and prema­
ture breakage of the bars.
Heat treatment of bars
All bars have been heat-treated.
► Heat the bars while observing the temperature limits for aluminium of
150 °C (302 °F) and for steel of 300 °C (572 °F).
► DANGER! Grinding and polishing the bars with much force can
create temperatures of above 100 °C. Slowly air-cool the rails and
do not immerse them in cold water for immediate cooling.
14