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Static alignment optimization with LASAR Posture (743L100)
The static alignment can be substantially improved using L.A.S.A.R. Posture. In order to ensure appropriate stability
combined with easy swing phase initiation, please proceed as follows:
1 After the self-calibration of the L.A.S.A.R. device, the load line can be measured. To do this, have the transfemo-
ral amputee step onto the force sensing plate with the C-Leg and onto the height compensation plate with the
other leg. Approximately the same amount of weight should be applied to both feet (monitor weight display on
the L.A.S.A.R. Posture).
2 The alignment is adapted exclusively by modifying the plantar flexion so that the load line/laser line runs approxi-
mately 30 mm in front of the alignment reference point (=knee axis) of the C-Leg.
3 After adjusting the C-Leg with C-Soft (V2.4 and higher) (see Section 2.7 "C-Soft") perform dynamic optimiza-
tions during trial walking.
2.6 BionicLink/Optional: Serial Data Cable
INFORMATION
Prior to connecting the 60X3 BionicLink, read the corresponding 647G192 Instructions for Use.
1 Open plug cover.
2 Snap the BionicLink into place and attach it medially (for left-side fittings) or laterally (for right-side fittings) to the
C-Leg.
2.7 C-Soft
INFORMATION
Prior to the parameter adjustment with 4X180=* C-Soft (V2.4 and higher), read the corresponding 647G268
Instructions for Use.
INFORMATION
Ottobock Data Station is the platform for Ottobock applications such as C-Soft and others.
Ottobock C-Soft (V2.4 and higher) cannot be used without the Ottobock Data Station. The Ottobock Data Sta-
tion is a standard component of C-Soft and is automatically installed when installing C-Soft.
2.8 Optional: Parameter Settings with Foam Cover and C-Soft
The 3S26 or 3R59 Foam Covers can be used for the cosmetic enhancement of the leg prosthesis.
For that purpose, a 4X78 Charger Extension Cable can be integrated into the C-Leg fitting. If the charger extension
cable is not used, a connection cap made of 2 mm Pedilin® makes it possible to pull down the foam cover in order
to reach the charging receptacle at the C-Leg.
Allow a 60 mm "compression allowance" to minimize the effect of the protective foam cover on the knee function.
When determining the proper cover length, increase the thigh dimension by 30 mm and the shin dimension by the
same amount.
The mounted foam cover changes the damping behaviour. With the 60X3 BionicLink, which is attached below the
pre-shaped foam block, the damping behaviour can be taken into account by changing the parameter settings.
C-Leg Prosthetic System
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Ottobock 15
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