3 Construction
Principal parts:
• Fabric (polyamide and lycra)
• Valve (silicone)
• Washer (nylon)
Spacer**
* For transportation only. Do not use for fitting.
** For use with some locks. (See Fitting the Spacer section.)
4 Function
The device provides control, secure connection and cushioning between the limb and the socket.
The perforations of the device allow moisture to escape during stance.
During stance, the valve opens to allow moisture and air to escape through the perforations
in the distal cap. During swing, the valve closes and stops air from re-entering the device, thus
creating a vacuum, which both improves proprioception and reduces pistoning.
5 Maintenance
Advise users to report the following to their practitioner:
• Tears in the fabric or the silicone
• Tissue damage on the residual limb
• Enlarged perforations
• Changes in either body weight or activity level
• Deterioration/changes to the residual limb
• Changes in the performance of the device, for example:
• Moisture in the distal end of the device
• Loss of vacuum
Note... Perspiration discolors some socket materials.
Main Body
Casting
Dummy
• Umbrella (nylon)
• Spacer** (silicone)
• Retaining Screw* (nylon)
• Casting Dummy (silicone)
Perforated Fabric
Unperforated Fabric
5
Distal cap
Umbrella
Valve
Washer
Retaining
Screw*
938398PK1/1-0521