Otto Bock 4R21 - Page 9

1.2 Combination possibilities
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.
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12).
Additional constraints
• 4R21=1, 4R52=1: Only for use in TF prostheses, below the pros
thetic knee joint.
• 4R56*, 4R156*: Only for use in hip disarticulation prostheses,
above the prosthetic knee joint.
2.3 Environmental conditions
Storage and transport
Temperature range –20°C to +60°C (–4°F to +140°F), relative
humidity 20% to 90%, no mechanical vibrations or impacts
4R21=1, 4R52, 4R52=1, 4R56, 4R56=1, 4R56=2, 4R69, 4R69=AL,
4R82, 4R82=P, 4R91
Allowable environmental conditions
Temperature range: –10°C to +45°C
Moisture: relative humidity: 20%to90%, non-condensing
Unacceptable environmental conditions
Chemicals/liquids: fresh water, salt water, perspiration, urine,
acids, soapsuds, chlorine water
9
Unacceptable environmental conditions
Solids: dust, sand, highly hygroscopic particles (e.g. talcum)
4R21, 4R156, 4R156=1, 4R156=2
Allowable environmental conditions
Temperature range: –10°C to +45°C
Moisture: relative humidity: 20%to90%, non-condensing
Chemicals/liquids: fresh water as dripping water, occasional con
tact with salty air (e.g.near the ocean)
Solids: dust
Prohibited environmental conditions
Chemicals/moisture: salt water, perspiration, urine, acids,
soapsuds, chlorine water
Solids: dust in high concentrations (e.g.construction site), sand,
highly hygroscopic particles (e.g.talcum)
4WR95=3
Allowable environmental conditions
Temperature range: –10°C to +45°C
Chemicals/liquids: fresh water, soapsuds, chlorine water
Moisture: Submersion: max. 1h in 2m depth, relative humidity: no
restrictions
Solids: Dust, occasional contact with sand
Clean the product after contact with humidity/chemic
als/solids, in order to avoid increased wear and damage (see
Page11).
Prohibited environmental conditions
Solids: highly hygroscopic particles (e.g.talcum), dust in high con
centrations (e.g.construction site), intensive contact with sand
Chemicals/liquids: salt water, perspiration, urine, acids, continu
ous use in liquid media