The key points of the workflow are summarised in these instructions for use in the following sec
tions.
The technical information is provided as a PDF file on the included CD. The file can be viewed on
a computer using a PDF display program and printed if necessary.
5.2 Fabricating the Prosthetic Socket
Fabricating the prosthesis is included in the prosthetist's area of responsibility. The design is
based on the needs of the patient. The prosthetic socket must be very stiff in the distal area for
subsequent gluing with polyurethane. In case of laminated sockets, at least 2 layers of carbon
must be applied over the distal area in addition to the reinforcement.
In the course of subsequent processing, the prosthetic socket lies above the footplate at a dis
tance of 3 mm (0.12"). This gap is needed so that polyurethane can penetrate fully underneath the
prosthetic socket.
In case of special physical features of the patient (e.g. growth deficits), the distal area of the pros
thetic socket must be fabricated so that the height difference is compensated.
5.3 Measuring plumb lines on prosthetic socket
Preparing the prosthetic socket (photos see 646T113*, Section 3.1.1)
1) Apply white adhesive tape to the sagittal side of the prosthetic socket.
2) Apply white adhesive tape to the frontal side of the prosthetic socket.
Preparing the patient (photos see 646T113*, Section 3.1.2)
1) Remove the shoe.
2) Put on the protective sock.
3) Apply the prosthetic socket.
4) Use adhesive tape or strap material to secure the prosthetic socket on the leg.
5) CAUTION! In order to prevent the prosthetic socket from sliding on smooth surfaces,
apply adhesive tape to the distal side of the prosthetic socket.
6) CAUTION! To prevent falling and for load relief, ensure the patient stands between
parallel bars.
7) Posture of the patient:
- standing upright
- looking straight ahead
8) Use foot blocks to compensate for any height difference.
9) Check the upright pelvis position.
10) Based on the needs and anatomy of the patient, use foot blocks to compensate for the length
difference.
Marking the frontal plumb line (photos see 646T113*, Section 3.1.3)
► Project the frontal plumb line onto the prosthetic socket with the laser and mark it.
Marking the sagittal plumb line (photos see 646T113*, Section 3.1.4)
► Project the sagittal plumb line onto the prosthetic socket with the laser and mark it.
5.4 Preparing the Prosthesis for the Trial Fitting
Preparing the prosthetic socket and footplate (photos see 646T113*, Section 3.2.1)
1) Roughen the distal side of the prosthetic socket.
2) Roughen the footplate to the marked line.
3) Glue a rubber ring from the Chopart glue kit onto the centre of the prosthetic socket using
superglue.
4) Draw crosshairs onto an underlay.
5) Position the footshell with the inserted footplate so that the lines on the footplate line up with
the crosshairs.
6) Mark the outside contour of the footshell on the underlay.
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