Otto Bock 4R220, Instructions For Use Manual

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10 Technische Daten
Kennzeichen 4R220
Gewicht [g] 210
Systemhöhe [mm] 37
Einbauhöhe [mm] 31
Material Aluminium
Max. Körpergewicht [kg] 150
1 Product description English
INFORMATION
Date of last update: 2021-06-28
►
Please read this document carefully before using the product
and observe the safety notices.
► Instruct the user in the safe use of the product.
►
Please contact the manufacturer if you have questions about the
product or in case of problems.
► Report each serious incident related to the product to the manu­
facturer and to the relevant authority in your country. This is par­
ticularly important when there is a decline in the health state.
► Please keep this document for your records.
1.1 Construction and Function
The 4R220* Dynamic Vacuum System (DVS) enables an active vacu­
um prosthesis. 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
15
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
components specified in this section.
This prosthetic component is compatible with Ottobock's system of
modular connectors. Functionality with components of other manufac­
turers 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 intended exclusively for lower limb exoprosthetic fit­
tings.
2.2 Area of application
Product approved for max. body weight
• The maximum approved body weight is specified in the technical
data (see page 21).
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