Ottobock 3R15 Manual Del Usuario página 8

A
Weight
Bearing Line
3R15/3R49
0–10 mm
Middle of Foot
18,25,35,45 mm
10–15 mm
A
1
SACH Foot
4 Adjusting Swing and Stance Phase
This Modular Knee must be adjusted to the individual needs of each patient. Swing and
stance phase are individually adjusted through the degree of extension assist force, friction
and the braking action which is dependent upon weight bearing.
Before adjusting the knee joint, read the following instructions:
4.1 Adjusting Swing Phase with Extension Assist
Adjust the tension of the extension spring by turning the adjustment screw. Use a 4 mm
hexhead wrench (fig. 3).
Clockwise rotation: increases tension
Counter-clockwise rotation: decreases tension
4.2 Setting Swing Phase Speed with the Friction Adjustment
Resistance to movement between the knee axis and the brake bushing may be adjusted with
the Set Screw (7). Use a 3 mm hex head wrench (fig. 4).
Clockwise rotation: movement slower
Counter-clockwise rotation: movement faster
Adjustments of as little as 15 to 20° provide a perceptible change. Settings which are too
loose may cause noise and lead to premature wear. Those which are too tight will cause the
brake to be activated even when not under load.
4.3 Adjusting the Stance Phase Control
The responsiveness of the brake effect may be regulated by the stance control adjustment
screw. Use a 6 mm hex head wrench (fig. 5).
Clockwise rotation: braking is less responsive
Counterclockwise rotation: braking is more responsive
The knee joint functions well only when the extension assist, friction and brake effect are
harmoniously adjusted. Take care in making individual adjustments.
5 Service Directions and Recommendations
After the knee has been worn for a few weeks, the stance control and/or swing phase
controls may need to be readjusted. It is recommended that the patient be seen in this time
frame to make any necessary corrections.
A
Weight
Bearing Line Bearing Line
3R15/3R49
0–10 mm
Middle of Foot Middle of Foot
10 ±5 mm
10–20 mm
A
1
Dynamic Foot
A
Weight
Bearing Line
3R15/3R49
0–10 mm
Middle of Foot
25, 35 mm
0 mm 10–20 mm
A
1
Single Axis Foot Greissinger plus Foot
A
Weight
3R15/3R49
0–10 mm
10 mm
A
1