Combination Possibilities; Intended Use - Ottobock 4R220-1 Instrucciones De Uso

1.1 Construction and Function
The 4R220* Dynamic Vacuum System is a system for providing an active
vacuum. It consists of a component with an integrated piston pump, a liner
and a sealing sleeve.
The Dynamic Vacuum System uses the pistoning movements between the
residual limb and prosthetic socket to generate the vacuum. The piston of
the pump is equipped with magnets. A metallic counter-piece is installed on
the liner. Air is suctioned out of the space between the liner and prosthetic
socket into the cylinder during the swing phase, and this air is pressed out
during the stance phase. The result is a permanent vacuum, with a level that
adapts to the user's activity level.

1.2 Combination possibilities

INFORMATION
To ensure proper product function, only use the product with the compon­
ents specified in this section.
This prosthetic component is compatible with Ottobock's system of modular
connectors. Functionality with components of other manufacturers that have
compatible modular connectors has not been tested.
Limited combination options for Ottobock components
Allowable liner: 6Y94

2 Intended use

2.1 Indications for use
The product is to be used solely for lower limb prosthetic fittings.
2.2 Area of application
The product is embedded in the prosthetic socket and is no structural com­
ponent. The maximum body weight is determined by the prosthetic socket's
laminate and the prosthetic components used.
2.3 Environmental conditions
Allowable environmental conditions
Temperature range for use: -10 °C to +60°C
Allowable relative humidity 0 % to 90 %, non-condensing
Unallowable environmental conditions
Mechanical vibrations or impacts
Perspiration, urine, fresh water, salt water, acids
Dust, sand, highly hygroscopic particles (e.g. talcum)
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