Ottobock | 7
2R49, 2R50, 4R69
Approved for a body weight of up to 125 kg
Attention!
Please avoid exposing prosthetic components to corrosive elements such as fresh water,
salt water, and acids. Using this medical product under such conditions will render all
claims against Otto Bock HealthCare null and void.
Please also inform your patients!
2.3 Function
The tube adapters are used in combination with the tube clamp adapters as connection elements for
modular lower extremity prostheses. These adapter combinations allow for controlled angle and length
adaptation in the sagittal and frontal plane as well as adjustment of inward and outward rotation.
Attention!
To achieve maximum stability for the transtibial prostheses, we recommend using a ⌀ 34
mm tube adapter (e. g. 2R57/2R76) together with a ⌀ 34 mm tube clamp adapter (e. g.
4R82/4R91). This applies in particular if the prosthesis is to withstand increased pressure
due to higher activity levels, longer foot or transtibial lever arms or similar factors.
3 Technical data
2R50
2R49
4R69
Weight
155 g
240 g
75 g
System height
–
–
33 mm
System height min.
97 mm
97 mm
–
System height max.
232 mm
432 mm
–
Material
Aluminum
Aluminum
Aluminum
Diameter
30 mm
30 mm
30 mm
Patient weight max.
125 kg (275 lbs)
125 kg (275 lbs)
125 kg (275 lbs)
4 Handling
4.1 Assembly
The tube adapter must be shortened according to the measurements of the amputee.
Attention!
The tube adapter must always be installed distally.
Attention!
Do not clamp the tube into a vice ! It may re-shape or damage the tube.
The section surface must be perpendicular to the tube longitudinal axis
(Fig. 2).
We recommend using 719R2 Tube Cutter or equivalent.
Carefully debur the tube cutting edge inside and outside.
For this purpose use the
718R1 Interior and Exterior Pipe Reamer or equivalent (Fig. 3).
Loosen the cap screw (Fig. 4, item 2) of the tube clamp adapter by two turns and insert
the tube 5 mm deep into the tube clamp adapter while slightly rotating the tube. Next,
place the tube clamp adapter with the tube inserted vertically on the worktop and fully
insert the tube adapter into the tube clamp adapter until the tube is in contact with the
base rim inside the clamp.
Attention!
For reasons of structural strength, the residual pieces of cut tube adapters must not
be used as components in definitive prostheses.
Pozor 4
(Reststück Rohr)
