Motus Bioengineering Inc.
Stimulus and Motus
Tech Note # 23
(Deep Brain Stimulus) is a
break-through medical procedure that allows neurologists and
neurosurgeons to reduce tremor and other movement disorders associated
with Parkinson's and Essential Tremor. Implanting the Medtronic's
electrodes deep within the brain and then supplying a controlled
electrical signal significantly reduces these unwanted symptoms.
The Motus Movement Monitor is used in: 1) selecting patients
appropriate for the operation, 2) monitoring the patient responses
during placement of the electrode, 3) tracking the patient after the
operation and 4) adjusting the settings of the Medtronic's control
patients with tremor or other movement disorders are suitable for the
DBS procedure. The Motus systems assists the neurologist in the
selection process by providing accurate quantification of the movement
such as clearly documenting the tremor characteristics, the extent of
bradykinesia (via pronation/supination recordings), and the prominent
side of the disorder.
- During the positioning of
the electrode in the brain using microelectrode-guided mapping, the
neurosurgeon chooses the location based on the results of sensorimotor
mapping. The efficacy of the chosen location can be verified by the Motus measurements of tremor and pronation/supination rates in
those cases where there is not a transient suppression of symptoms due
to the acute effects of the surgery itself (the temporary "microlesion"
surgery, the Motus system is used to track the progress of the
patient and to provide feedback to the physicians on the long-term
results of their surgery. The quantitative data are a useful adjunct to
the clinical scores enabling the appropriate treatment modifications.
patient returns for periodic readjustment of the Medtronic's
"pacemaker", the Motus system is used to provide quantitative
measurements of tremor and bradykinesia to assist in selecting the
optimum stimulating electrode configuration and stimulation parameters.