Otto Bock 4R220, Инструкция по эксплуатации

Страница: 17 / 184

4R220 Dynamic Vacuum System (see fig. 1)
Item Quant
ity
Designation Reference num­
ber
8 1 Duckbill valve –
9 1 Plaster screw 503S3
10 1 Valve dummy –
11 1 Silicone dummy –
12 1 Piston dummy –
13 1 Polylub GLY 801 special
grease 633F30=2
14 1 Mounting wrench 4X338
Spare parts/accessories (not included in the scope of deliv­
ery)
Designation Reference
number
Single-component pack (1 piston, 1 fixation
ring)
4X320=N
Single-component pack
(1 valve bushing, 2
duckbill valves)
4X322
Dummy set
(1 piston dummy, 1 silicone dummy,
1 valve dummy, 1 plaster screw)
4X326
5 Preparing the product for use
CAUTION
Incorrect alignment or assembly
Risk of injury due to damaged prosthetic components
► Observe the alignment and assembly instructions.
17
INFORMATION
►
Not all of the materials may be available in your country. In this
case, please contact the local branch of the manufacturer to
obtain information on alternative materials.
5.1 Preparing for socket fabrication
INFORMATION
The Dynamic Vacuum System can be used with a total surface
weight-bearing socket or a specific weight-bearing socket. Observe
the following instructions:
► Mould the residual limb length with liner unchanged while taking
the plaster cast.
►
Do not shorten the plaster model during modelling.
> Required materials: piston dummy, silicone dummy, short or
long valve dummy, 99B25 nylon stockinette, 99B81=70X19X5
PVA bag, string, 633W8 wax, 636K8* Plastaband
1) Distally flatten the plaster model so that the piston dummy can be
positioned in the longitudinal residual limb axis (see fig. 2). Posi­
tion the piston dummy on the plaster model and loosely secure it
with a plaster screw.
2) Pull a nylon stockinette over the plaster model.
3) Tie off the nylon stockinette between the piston dummy and
plaster model and trim off the excess nylon stockinette (see
fig. 3).
4) Turn the plaster screw all the way in (see fig. 4).
5)
INFORMATION: No PVA bag is required for fabricating a
check socket.
Pull a soaked PVA bag over the plaster model.
6) Use string to tie off the PVA bag in the undercut of the piston
dummy (see fig. 5).
7) Cut off the excess PVA bag with a scalpel.
8) Position the silicone dummy on the piston dummy. Check that no
excess PVA bag is protruding during this process (see fig. 6).