Ottobock | 22
d.
Do not add foam within 1 inch of the liner edge as this will prevent later finish-
ing of the edges.
2.
Modify the ABS shell using a heat gun (750 °F-900 °F).
Too much heating of ABS shell, especially in localized areas near attachments
points.
Risk of shell breakage or disconnection from mounting surface.
This modification method should be used cautiously. The heating of the ABS material
can change/weaken the structural properties of the material at the localized area.
Do not heat the plastic within 3 inches of the attachment points of the shell.
a.
Heat both the inside and outside of the ABS simultaneously if possible (fig.6).
If not, alternate between the in/out surfaces to heat the material evenly.
b.
Heat until the material is malleable but not too hot. If you can smell the materi-
al, then it is too hot.
c.
Heat an area approximately 2-3 inches. larger than what you want to change to
allow for a smooth transition.
d.
With heat protective gloves (fig. 7) push the ABS material into your wished po-
sition.
e.
Your change region should be gradual with no sharp edges.
f.
Your changes take effect when the ABS cools, after just a few minutes.
7.3.2 Modify the trim lines of the ABS shell.
Modification of shell support area at seat-back transition
Risk of injury due to shell cracking.
The seat-back transition area can experience high-stress especially with users who have
high tone or spasms. Maximize the shell support area in this region.
The ABS shell may be modified at the final fitting of the seating system or returned to the
supplier for finishing after a trial fit.
1.
Mark the area to be removed with a water-based or silver colored pen.
Summary of Contents for OBSS ORTHO-SHAPE
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