5 Preparing product for use
Orthosis alignment
►
For the upper and lower leg area, select suitable materials 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 or 743Y57=1-7 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.
►
The joint mechanism must be protected against dirt by a suitable protect
ive device (e.g. joint protectors) to ensure proper functioning.
Locking mechanism
►
Orthotic joints with a ring lock are delivered ready-to-use. Do not adjust
the locking mechanism or the orthotic joint.
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.
22
Summary of Contents for 17KL6
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Page 3: ...17KL7 17KL9 2 3 ...
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