Otto Bock 3R80 - Alignment Optimization; Dynamic Trial Fitting; Checking Factory Settings

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Static Alignment Process
+ = anterior placement / – = posterior placement (in relation to the load line)
No. see fig.6
  Optimise the static alignment solely by changing the plantar flexion. Adjustment is performed only
with the anterior and posterior set screws of the tube adapter on the prosthetic foot.
a–p positioning of the alignment reference point (rotation axis of the prosthetic knee joint) to
the load line:
-35 mm
5.5 Dynamic Trial Fitting
CAUTION
Adjusting the Settings
Fall due to incorrect or unfamiliar settings
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Only adapt the settings to the patient gradually.
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Explain the effects of the adjustments on the use of the prosthesis to the patient.
During dynamic trial fitting, the alignment and settings of the prosthesis are checked and adapted
for optimum walking according to the needs and abilities of the patient.
The patient has to learn the safe use of the prosthesis through intensive training.
The following subsections describe the adjustment possibilities for adapting the product to the
patient.
The list below provides an overview of the sequence for working through the subsections:
• Checking the Factory Settings
• Setting Flexion Damping
• Setting Extension Damping
• Setting Stance Phase Damping
• Setting the Stance Phase Damping Threshold
The adjustment is illustrated graphically in the supplied Quick Start Guide.
5.5.1 Opening the Covers
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Tools required:
Flat screwdriver
1) Open the extension damping and flexion damping covers (see fig.11).
2) Open the stance phase damping cover (see fig.12).
5.5.2 Checking the Factory Settings
Function Means of adjustment Factory setting Meaning
Flexion damping Adjustment valve "F"
(see fig.13)
Stop "–" Minimum damping
Extension damping Adjustment valve "E"
(see fig.14)
Stop "–" Minimum damping
Stance phase damping Adjustment ring "S"
(see fig.15)
Stop "+" Maximum damping
Stance phase damping
threshold
Adjustment ring "!"
(see fig.16)
Bumper without play,
pre-stressed
Low threshold
(stance phase damping is
activated at low load)
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Tools required:
710H10=2x3 Adjustment Wrench
1) Check whether the settings match the factory settings (see table).
2) In case of deviations, restore the factory settings using the adjustment wrench.