Neuropace RNS System User Manual page 107

Glossary
Reset. When the neurostimulator is reset the following will occur: detection and all therapies will be
disabled, no ECoGs will be stored, and no diagnostics will be stored (however events prior to reset will be
saved). If a neurostimulator reset occurs, the user should note the cause of the reset and contact
NeuroPace.
Responsive therapy. Electrical stimulation output to cortical tissue by the neurostimulator in response to
pattern A or pattern B detection.
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RNS Neurostimulator. An implantable, battery powered, microprocessor controlled device that can
amplify and analyze the patient's electrocorticographic activity, detect activity from intracranial electrodes
and deliver a short train of current pulses to the brain to attempt to interrupt the detected activity.
Saturation event detector. Saturation occurs when an input signal exceeds the dynamic range of a
particular channel. The neurostimulator incorporates a saturation detector to reduce occurrences of
detecting saturation as a neurological event.
Scheduled ECOG storage. A selectable neurostimulator function that causes the neurostimulator to
store an ECoG at the desired time(s) of day.
Simulate performance. Simulation uses the programmer to test a proposed set of detection settings with
retrieved ECoGs. The simulation will generate markers, simulating how the neurostimulator may detect if
those settings are programmed into the neurostimulator.
Simulated markers. During detection analysis, when detection simulation is performed, simulated
markers are generated to indicate the type of electrographic activity that would be detected using the
proposed detection settings.
Stereotactic frame. A medical device that is attached to the patient's head and provides a three-
dimensional frame of reference for accurate implantation of depth leads.
Stereotactic surgery. Surgery in which a system of three- dimensional coordinates is used to locate the
site to be operated on.
Stim pathway. Collective term describing the anodes (+) and cathodes (-) selected for a burst.
Stop Gauge. The stop gauge is placed on a depth lead prior to implantation to indicate the appropriate
depth of its insertion.
Storage start time. Scheduled ECoG storage setting controlling the time(s) at which ECoG storage will
be triggered.
Stylet. Support wire contained in both the cortical strip and depth leads. The stylet is removed after
proper lead placement has been achieved.
Summary. Programmer interactive display of a record of the neurostimulator activity occurring since the
last interrogation.
Suture Sleeve. The suture sleeve is intended to protect the lead body at the point at which the lead is
sutured to subcutaneous tissue to immobilize it and prevent its dislodgement while chronically implanted.
Synch channel. The neurostimulator will monitor this channel for ECoG signal peaks to calculate
synchronous delivery timing. One channel will be used for all bursts selected to have synchronous pulse
delivery.
Synchronize data. The action of transferring data (via the Internet) to the PDMS.
Synchronous pulse. Delivering the first pulse in a burst or after a first pulse delay (synchronous) from a
peak in an ECoG signal.
Technical Mode. Option to configure detection using all detection parameters.
Telemetry. Communication between the neurostimulator and the programmer.
Test Stimulation. A stimulation that is configured and delivered in real-time using a programmer.
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RNS System User Manual
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