Use; Movement Patterns In Basic Mode (Mode 1); Standing; Stance Function - Otto Bock C-Leg 3C98-3 Instructions For Use Manual

9 Use

9.1 Movement patterns in basic mode (mode 1)

9.1.1 Standing

Knee control through high hydraulic resistance and static alignment.
A stance function can be enabled using the adjustment software. Please see
the following section for further information on the stance function.

9.1.1.1 Stance function

INFORMATION
If this function has been enabled in the adjustment software, the stance function can be activ­
ated/deactivated using the remote control app (or the optionally available remote control). Fur­
ther information see Page 82.
The stance function (standing mode) is a functional supplement to the basic mode (mode 1). This
function makes it easier for the user to stand on an inclined surface for a longer time. The joint is
fixed in the flexion direction at a flexion angle between 5° and 65°.
This function must be enabled in the adjustment software. Once the function is enabled, you can
also choose between an automatic and manual lock.
Auto joint lock
The auto stance function recognises any situation that puts strain on the prosthesis in the flexion
direction but where flexion is not permitted. Examples of this include standing on uneven or slop­
ing surfaces. The knee joint is always locked in the flexion direction when the prosthetic leg is not
fully extended and is at rest. Upon forward or backward rollover or extension, the level of resist­
ance is immediately reduced to stance phase resistance again.
The knee joint is not locked when the above conditions are met and a sitting position is assumed
(for example while driving).
The stance function can also be set to any flexion angle between 5° und 65° using a motion pat­
tern (see Page 76).
Manual joint lock
1) Flex the joint between 5° and 65° and keep it still for one second.
2) Slowly extend the joint up to the desired standing angle.
3) In this position, keep the joint still for one second until it vibrates.
→ The blocked joint can now be fully loaded in the flexion direction.
Releasing joint lock
► Quickly extend the joint or tilt the thigh slightly forward or more than 120 back.
76 | Ottobock