Otto Bock 3R32 TITAN Instructions For Use Manual page 11

1.2 Minimum order quantity
502R1=M5x16 Two-hole Nut (18), 501T1=M5x16 Truss Head Screw (17), 506G3=M8x12-V Set
Screw (12), 506G3=M8x10 Set Screw (12a), 502S19=M6 Lock Nut (14), 4B82 Slotted Bushing
(9), 513T4=18.8x10.2 Belleville Spring Washer (7), 507S16=10x1 Lock Ring (13), 4Z43=H Stop
(15), 507U16=6.4 Spherical Washer (10), 501T15=M6x40 Socket Head Cap Screw (11), 4B86
Axle Bushing (8)
1.3 Single component
4G70 Lamination Anchor (1), 4F46 Lock, complete (19)
2 Description
2.1 Indications for use
The polycentric Modular Knee Joints 3R32 (TITAN) and 3R23 (INOX) are to be used exclusively
for the prosthetic fitting of the lower extremities.
2.2 Field of application
Field of application according to the Ottobock MOBIS Mobility System:
Recommended for amputees with Mobility Grade 1 (indoor walkers).
Approved for a patient weight of up to 125 kg.
Given the lock, the joints are suitable in particular for patients who require a high degree of safety.
Please avoid exposing prosthetic components to corrosive elements such as fresh water,
salt water, acids and other liquids. Using this medical device under such conditions will
render all claims against Otto Bock HealthCare null and void.
Please inform the patient.
Reuse on another patient
Fall due to loss of functionality as well as damage to the product
Only use the product for a single patient.
Inform the patient.
2.3 Construction and function
The upper joint section (3) with lamination anchor and lower joint section (2) are connected to
one another by axle brackets (4+5) and linkage bars (6). Due to the way in which the joints move,
the stretch of the cosmetic foam cover decreases in the sitting position. The lamination anchor
(1) is attached to the residual limb bedding and constitutes the adjustable connection piece to
the coupling core. The centre of rotation (instantaneous centre of rotation) therewith changes its
position in relation to the flexion. In an extended position, the centre of rotation lies at the height of
the femoral condyles and moves downward and forward with increasing flexion.
The lock made of plastic is attached between the axle brackets (4+5) with the anchor bracket (26)
and secures the joint in extended position. To initiate knee flexion, e.g. for sitting down, the joint is
released with the lock control handle (22). In extended position, the lock engages automatically.
The lock cable should run along the lateral prosthesis side.
The lock (19) can be replaced with the extension assist of the Joint 3R21 or 3R30 of the same
production series.
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