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planted stimulator through the skin via an inductive link and the Implant activates
the muscles which produce a foot lift while you bring the affected leg forward in the
swing phase. When you put your heel down again, the Control Unit receives a heel
strike signal from the Heel Switch. The stimulation will continue shortly so that your
foot will be set down in a well balanced way.
If you have the Heel Switch on the unaffected foot, the muscles on the affected leg
will be activated by a heel strike instead of heel lift to produce the foot lift at the cor-
rect time. You can choose which foot you want to carry the Heel Switch on according
to your preference and your clinician’s advice. However, you can only switch from
one foot to the other when you are at the clinic because your clinician must set up
the stimulation timing accordingly.
Your clinician can connect the Control Unit to a PC and adjust the stimulation inten-
sity and the timing with a dedicated ActiGait® software program so that it matches
your gait pattern and walking speed. The clinician will set a range within which you
can adjust the stimulation intensity with the Control Unit. Only trained clinicians
can adjust the ActiGait®.
6.1 The ActiGait
®
Implant
The Implant consists of a stimulator body (1), a cuff electrode (2) and a cable (3).
The Implant does not have an internal power source (such as a battery) and is ac-
tivated through magnetic induction from an external power source. The Implant is
as such passive, and it is necessary to have an ActiGait® Control Unit and ActiGait®
Antenna to activate it.
Figure 2: The Implant
1
2
3
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