Otto Bock 3R30 Instructions For Use Manual page 9

1.2 Minimum order quantity ▲
502R1=M5x16 Two-hole Nut (23), 501T1=M5x16 Truss Head Screw (22), 506G3=M8x12-V Set
Screw (12), 506G3=M8x10 Set Screw (12a)
502S19=M6 Lock Nut (14), 4B82 Slotted Bushing (9), 4B86 Axle Bushing (8) 513T4=18.8x10.2
Belleville Spring Washer (7), 507S16=10x1 Lock Ring (13), 4Z43=H Stop (20), 507U16=6.4
Spherical Washer (10), 501T15=M6x40 Socket Head Cap Screw (11), 4V111 Knob for Extension
Assist (19), 4V110 Guide for Extension Assist (16), 4V108 Lock Control Plate -plastic-(18), 513D36
Extension Assist Spring (17), 513D51 Extension Assist Spring (17a)
1.3 Single component ■
4G70 Lamination Anchor (1)
2 Description
2.1 Intended use
Attention
Reuse on another patient.
Risk of injury due to loss of functionality as well as damage to the product.
Only use the product for a single patient.
The polycentric Modular Knee Joints.3R30 (TITAN) and 3R21 (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 mobility levels 1 and 2 (indoor walkers and restricted outdoor
walkers). Approved for a patient weight of up to 125 kg..
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 your patients.
2.3 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 pivot point (instantaneous center of rotation) therewith changes its position
in relation to the flexion. In an extended position, the pivot point lies at the height of the femoral
condyles and moves downward and forward with increasing flexion.
The integrated extension assist serves to control the swing phase. The tension of the extension assist
spring and the axle friction can be adjusted independently of each other (see Sections 5 and 6).
3R30/3R21 Ottobock | 9