Otto Bock 17LK1-L1-5, Инструкция по эксплуатации

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Ottobock | 11 17LK1=L1-5, 17LK1=L2-5, 17LK1=L3-5
The knee joint upper part (1) is placed anteriorly to the knee joint lower part (2). This allows the
tibial joint bar to run freely without obstruction from the swing of the calf muscle. The bushing
(radial bearing) (3) and bearing washer (axial bearing) (4) are made of maintenance free and
pressure resistant plastic. No lubrication is required for the joint function. The wedge lock (11)
is connected with a knee lever (9) and secured via a compression spring (10) into the lower part
of the joint.
1.5 Function
1.5.1 Locked Function
The UL Knee Joint can be disengaged with the knee lever and locked again automatically. Option-
ally, the cable pull release can be used. If the wedge lock, compression spring, and knee lever
are removed, the joint can be used permanently as a free motion joint. The closed joint bar cases
serve for attachment of the UL System Joint Bars.
1.5.2 Free Motion Function
Should the joint be used permanently as a free motion joint, the locking function must be switched
off. The knee joint does not need to be disassembled to change the function from locked to free
motion. Disengage the joint and move into flexion. Subsequently drive out the lock washers (12)
and axles (13, 14), remove the knee lever (9) backwards. Afterwards pull the lock wedge (11)
and compression spring (10) laterally and remove them
(Fig. 1)
.
2 Processing
2.1 Using the Knee Joint Dummy
The joint dummy can be used both for thermoplastic and lamination techniques. The dummy is
symmetrically designed, laminate repellent (acrylic and epoxy resin) and, therefore, does not need
to be isolated. The knee joint dummy and the joint bars can be positioned on the plaster model
using the 30Y89 Binding Head Screw and 743Y56=3 Alignment Adapter
(Fig. 2
). The joint bars
should be fixed with one screw in the dummy system casing (for further details see also Working
Instructions).
2.2 Working Instructions
CAUTION
Risk of injury as a result of improper use.
The unilateral system joint bar and tibial joint bar are
not intended for use as a System Lamination Bar (‘Lancet’) because they could compromise
both the function and stability of the orthosis as well as threaten the patient’s safety.
When using the L.A.S.A.R. Posture (Article no. 743L100) for sagital alignment, please note : In
all three joint sizes the weight bearing line should not be more than
3 cm
behind the compro-
mise center of rotation according to Nietert (60/40), otherwise the function and stability of the
orthosis as well as the patient’s safety (see graphic illustration) could be compromised.
The valgus and/or varus deviation in the knee joint must not be more than a maximum of
10°
.
Beyond 10° a medial guide joint must be used, otherwise the function and stability of the ortho-
sis and the patient’s safety would be put at risk.
Do not heat the unilateral system joint bar (aluminum) beyond
150 °C / 302° F
, because this
would jeopardize the stability of the unilateral system joint bar and the safety of the patient.