Streifeneder ortho.production Control4Sil.basic65S1 Serie Manual De Instrucciones página 20

Trimming of the sealing lip liner must be done with special care. No corners, edges and folds
may develop; these can lead to tears in the material and/or to skin problems. A wave cut must
be performed on the cutting edge to reduce the surface tension and skin irritations.
Please ensure a properly fitting trim over the edge of the socket so that the cutting edge does
not extend into the crotch area.
Cut the silicone liner edge by means of a pair of Item-No. 166P36 Wavecut Scissors (see Fig. 3).
Note!
Please do not use zig-zag scissors for cutting the liner. Do not cut a straight edge
with straight scissors as well. Both cases bear the risk of tearing edges when they
are stretched or causing skin irritations when wearing.
Attention!
Rolling the sealing lip liner over the socket edge is not possible because the gliding
surface coating would then be damaged and adhesion to the skin is no longer
guaranteed.
7.2 Trimming the sealing lip liner and preparation of the plaster cast
Note!
Please observe the detailed processing information in our information about the
socket design.
Mark the planned upper socket edge on the liner and perform the trim. We recommend using
166P36 wave-cut scissors.
Keep the liner on the stump for a while in order to be sure to that the user feels comfortable
with it (see Fig. 4).
Sealing the cut edge with silicone adhesive is not necessary due to the sliding coating. Make
sure that the distal sealing lip liner end is centrally seated on the stump and that the sealing lips
are in the correct position perpendicular to the stump axis (see Fig. 5).
7.3 Socket construction
Making a mould:
Take the normal length and circumferential measurements and record them in a measuring
sheet. In order to obtain an optimal fit and a functional vacuum, it is imperative to precisely
determine the circumference dimensions. They serve later as a basis for further volume
reductions (see Fig. 6).
Note! When measuring in the area of the sealing lips, it is mandatory to take the circumference
dimensions BETWEEN the sealing lips.
Draw the usual guide lines and markings for circumferential measurements.
When making the mould, be sure to accurately shape the area of the sealing lips (see Fig. 7).
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