Technical Data - Otto Bock 3R93 Instructions For Use Manual

Swing phase control
The 3R93 Knee Joint has a mechanically controlled swing phase. To initiate the swing phase
the prosthesis wearer relieves the load on the prosthesis to cause the brake to turn off. The in-
tegrated, adjustable spring extension assist (Fig. 2, item B) controls the pendulum movement of
the prosthetic lower leg.
2.6 Combination possibilities
Depending on the patient's functional demands, the following prosthetic feet and tube adapters
are recommended:
Single Axis Foot (1H32–1H40), SACH Foot (1S49–1S90), Adjust (1M10), Dynamic Foot
(1D10 / 1D11), Greissinger Plus (1A30), Dynamic Motion (1D35), Trias (1C30).
2R77 Tube Adapter – stainless steel (included in the delivery).
Using the 4R57 rotation adapter is only possible if the locking function is permanently deactivated
(see section 4.2.1) and the pull cable is removed.

3 Technical data

Proximal connection
Distal connection
Max. knee flexion angle (Fig. 3)
Weight
System height
Proximal system height up to alignment reference point
Distal system height up to alignment reference point
Max. user weight
Mobility grade according to MOBIS
4 Handling
4.1 Alignment
CAUTION
Risk of falling as a result of incorrect alignment. Errors during the alignment of the prosthesis
can lead to malfunction of the joint up to loss of functionality due to structural failure. This can
cause the patient to fall. Observe the alignment instructions.
The advantages of the 3R93 can only be made optimal use of in case of a correct alignment.
The optimal residual limb position must be anticipated when positioning the socket connector
(Fig. 8). Plumb lines in the frontal and sagittal planes, drawn from the hip joint centre of rotation
and marked while taking the plaster cast and during trial fitting of the test socket, will facilitate
correct positioning of the lamination anchor or socket adapter.
To align the prosthesis please proceed in two steps:
First make the bench alignment using an alignment tool such as 743L200 L.A.S.A.R. Assembly or
743A200 PROS.A. Assembly. For subsequent static alignment optimization, please use 743L100
L.A.S.A.R. Posture.
22 | Ottobock
Pyramid adapter
Tube clamp, 34 mm Ø
130°
760 g
82 mm
8 mm
74 mm
125 kg
1, 2
3R93