Technical Data - Otto Bock 3R15 Instructions For Use Manual

The joint is especially suited for above-knee amputees who require a high degree of stability. The
brake increases the stability of the knee and, for example, compensates for weak musculature.
Attention!
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.
Attention!
Please avoid exposing prosthetic components to surroundings that corrode metal parts,
for example, freshwater, saltwater, acids and other liquids. Using this medical product
in such environmental conditions will render all claims against Otto Bock HealthCare
null and void.
Please inform your patients.
2.2 Construction and function
The Swing Block (3) is connected to the Upper Joint Section (1) through the Swing Axis (5) and with
the Lower Joint Section (2) through the Knee Axis (4). The slotted Swing Block (3) accepts the slotted
Brake Bushing (15) which surrounds the knee axis. During weight bearing, resistance to movement
between the knee axis and brake bushing increases the stability of the knee.
In the unloaded condition the Compression Spring (9) and the elasticity of the Swing Block (3) re-
lease the brake effect.
Extension of the knee joint is provided by the Extension Assist (20–25). The Extension Assist Cable
(20) runs round the Distal Anchor Shell (21) and is hooked to the Swing Axis (5) (fig. 2) with the end
of the Extension Assist Cable pointing to the rear (fig 3, arrow).
2.3 Service life
INFORMATION
As a basic principle, all Ottobock knee joints are subjected to tests involving three million load
cycles. Depending on the amputee's activity this corresponds to a service life of three to five years.
We recommend carrying out regular safety checks once a year.

3 Technical data

Article number
Proximal connection
Distal connection
Knee flexion angle
Material
Weight
System height
Proximal system height up to
alignment reference point
12 | Ottobock
3R15
Adjustment pyramid
Adjustment pyramid
150°
Stainless Steel
490 g
9 mm
8 mm
3R49
Adjustment pyramid
Adjustment pyramid
150°
Titanium
360 g
9 mm
8 mm
3R15, 3R49