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9. Adjustment Options on the Orthosis
An orthosis with adjustable system ankle joints can be individually
adapted to the pathological gait (fig. 17). The adjustments described in
the paragraphs 9.1 to 9.3 do not influence each other and can be changed
separately.
9.1 Adjustments on the Spring Unit
The alignment of the orthosis can be adjusted with the alignment screw (1).
The range of motion in plantar flexion or dorsiflexion is infinitely adjustable
with the motion limiting screw (2). The spring force can be changed with
spring units (3) in different strengths (fig. 17).
Adjustable Alignment
Screw in or unscrew the alignment screw to adjust the angle between lower
leg and foot (fig. 18). Be careful not to readjust more than 10°. Do not
preload the spring unit as this will restrict the maximum possible range of
motion.
Adjustable Range of Motion
Screw in or unscrew the motion limiting screw to adjust the range of
motion (fig. 19). If the spring unit is turned in completely, the movement is
blocked. Each spring unit determines the maximum range of motion. They
are available for 5°, 10° and 15° range of motion.
Variable Spring Force
Insert a spring unit into the spring duct that corresponds with the required
spring force. There are five spring units with spring forces ranging from
normal to extra strong (fig. 20). Note that the spring unit determines the
maximum possible range of motion.
fig. 17
1
2
3
4
fig. 18
fig. 19
Mind the correct adjustment of the dorsiflexion stop when
mounting the system ankle joint. It is decisive for the entire
alignment of the orthosis.
fig. 20
