STIM SWITCH USER MANUAL (REVISION 2.00) ® Blackrock Microsystems, LLC 391 Chipeta Way, Suite G Salt Lake City, UT 84108 Tel: (866) 806-3692 www.blackrockmicro.
Stim Switch User Manual © Copyright 2011 Blackrock Micosystems, LLC. All rights reserved. Copying or other reproduction of this document is prohibited without prior written consent of Blackrock Microsystems, LLC Rev. 1.
Stim Switch User Manual Contraindications, Warnings and Cautions | IEC60101-0102 Danger of Electrostatic Discharge (ESD) ISO7000-0434 Warning (potentially hazardous condition); consult accompanying documents ISO7000-1641 Attention, consult accompanying documents IEC60417-5019 Protective earth (ground) IEC60417-5021 Equipotentiality Connector IEC606417-5335 Type BF Applied Part IEC60417-5007 ON (power) IEC60417-5008 OFF (power) Contraindications • The Stim Switch should not be used with an
Stim Switch User Manual • Use only the Front End Amplifier and Neural Signal Processor (NeuroPort™ System) supplied by Blackrock Microsystems. Substitution of systems not supplied by Blackrock may affect system performance and patient safety. • The Stim Switch and Amplifier/NSP should be disconnected from the patient electrodes during defibrillation. The Stim Switch and its subcomponents, along with the Amplifier and NSP are not defibrillator proof.
Stim Switch User Manual • Redundant protective earth connection shall be made to either the medical device or the other equipment. • The other equipment shall be powered from a medical grade (IEC 60601-1 compliant) separating transformer. Cautions • Federal law restricts this device to sale, by or on the order of a physician.
Stim Switch User Manual Voltage dips, short interruptions and voltage variations on power supply input lines IEC 61000-‐4-‐11 30%/500ms 60%/100ms 100%/10ms 100%/5s Test High & Low Voltage @ 50 Hz only 30%/500ms 60%/100ms 100%/10ms 100%/5s Power Frequency (50/60 Hz) magnetic field IEC 61000-‐4-‐8 3 A/m Test both 50/60 Hz 3
Stim Switch User Manual Guidance and Manufacturer’s Declaration – Electromagnetic Immunity Where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m).
Stim Switch User Manual System Specifications Model Name 128-Channel Stim Switch Type of Protection Class I Degree of Protection Type BF Applied Part Stimulation Inputs 4 DB-37 front panel connectors 1.3 kΩ impedance between input and output when stimulation mode is enabled. > 10 MΩ input impedance when stimulation mode is disabled Recording Outputs 36 Channel Samtec Connector with 32 output channels plus reference and ground pins. 1.
Stim Switch User Manual Table of Contents 1 System Overview ................................................................................................................1 1.1 1.2 2 Packing List ............................................................................................................................................1 Stim Switch Interface Systems (sold separately) ...................................................................................
Stim Switch User Manual 1 System Overview The Stim Switch provides unprecedented electrode-switching control for neural stimulation applications by enabling high-quality neural recordings immediately after stimulation. Each Stim Switch is designed to programmatically switch between stimulation and recording for up to 128 electrodes (32 on each bank). In stimulation mode, current is directed towards a selected set of electrode channels from an approved stimulation source.
Stim Switch User Manual 2 Hardware 2.1 Stim Switch Control Module The Stim Switch Control Module interfaces the Headstage Module with the digital control computer and analog stimulation source. Stim Switch configuration is accomplished using the StimComm program described in Section 3. Figure 2-2: Stim Switch Control Module Front Panel Power Switch (1): Use the power switch to turn on the Stim Switch Control Module.
Stim Switch User Manual Each Enable In port is designed for use at 3.3 V, but they can also be used with inputs rated between 2.5 V and 5.0 V. Refer to Section 2.5 below for further instructions regarding the use of the Enable In inputs. Table 2-1: Behavior of the Enable In Port Voltage Behavior 3.3 V Normal Operation. All channels behave as set by the StimComm software. 0V All channels set to recording mode when the StimComm software is set to either recording or stimulation mode.
Stim Switch User Manual The Stim100 is a fully programmable current generator with 96 output channels and the capability of producing up to 16 simultaneous stimuli. When the Stim Switch is set to stimulation mode, current generated by the Stim100 passes through the Stim Switch and provides stimulation to a set of selected electrode channels. Subject Ground (9): The subject ground should be connected to the Subject Ground connector.
Stim Switch User Manual The NeuroPort Plug that attaches to the bottom of the Headstage Housing provides the interface between the patient electrodes and the Stim Switch System. Connection to the patient electrodes is described in section 2.4.3 below. Each Headstage Module is built around connectors from Samtec and is designed to mate with the ICS family of array holders from Blackrock Microsystems.
Stim Switch User Manual 2.5 Hardware Setup The Stim Switch and its subcomponents (i.e. USB A-B Cable, power cord, Headstage Cables, Interconnection Cables, and Headstage Housing) are all suitable for use within the “patient environment.” However, any IEC 60950 approved information technology equipment that is intended for use with the Stim Switch System (i.e. computer) must be placed outside of the “patient environment.” The patient environment is defined as an area 1.5m (4.92 feet) from the patient.
Stim Switch User Manual 2. Connect the Stim100 to the IEC 60950 PC via a USB A-B cable (included in the Stim100 packaging). 3. Connect one end of the Stim100 Interconnection Cables to the locking connectors on the front panel of the Stim100. Connect the other end of these cables to the Bank A-D connectors on the Stim Switch labeled ‘STIM IN.’ Secure each connector in place using two thumbscrews.
Stim Switch User Manual connector pins inside of the Neuroport™ Plug. Do not immerse the housing in water or cleaning solution. 7. Screw the NeuroPort plug, attached to the bottom of the Stim Switch Headstage Housing, securely onto the Patient Pedestal 8. The NeuroPort Electrodes are now ready for stimulation/recording. 2.5 External Gating of the Stim Switch using the Enable In input 1. Connect the Stim Switch as described in section 2.4.1. 2.
Stim Switch User Manual 3 Software The StimComm software runs under Windows XP Professional, Windows Vista, or Windows 7. The StimComm software can be installed from the supplied CD by running the setup.exe program. Once the program has been installed, the StimComm software can be started by double clicking the StimComm desktop shortcut that was created by the installation program, or by launching the StimComm.exe program in the installation directory, C:\Program Files\Blackrock Microsystems\StimComm.
Stim Switch User Manual stimulating and recording. Turn stimulation on by pressing the ‘Set Stim’ button. Click the ‘Set Record’ button to switch to recording mode. Enable A-D: This feature assigns single or multiple Enable In connectors to the stimulation inputs on the selected bank. The Enable In connection enables/disables the stimulation inputs and initiates switching between stimulation and recording modes. Turn stimulation on by pressing the ‘Set Stim’ button.
Stim Switch User Manual Active Timer Panel (5): This panel displays the banks that are actively undergoing periodic switching after the ‘Start Timer’ button is pressed. Menu Options (6): Saving and Restoring Settings: The StimComm program allows you to save current settings to a file and restore those settings later. Settings can be saved by clicking the File menu and selecting the Save Settings option. Previously saved settings can be restored by selecting the Load Settings option in the File menu.
Stim Switch User Manual 5 Troubleshooting I live in a country with 220 V power, but the back of the Stim Switch Control Module says 110 V. You can change the power supply voltage rating by flipping open the panel above the plug on the back of the module and rotating the wheel so that it says 220 V. The Blanking Box is not visible when I open StimComm. 1. Click on the Startup Menu. 2. In the Search Box, type regedit.
Stim Switch User Manual Rev. 2.00 LB-0357 2. Check that the Headstage Module is recognized. The Headstage Module LED for each bank that is in use on the Stim Switch Control Module should be green. If it is red try disconnecting the Stim Switch cable and ensuring that both ends are plugged into the Headstage Module and the Control Module correctly. They are keyed and should only be inserted one way. 3. Watch the light above the USB port on the Stim Switch when you send a command.
Stim Switch User Manual 6 Warranty Blackrock Microsystems, Inc. warrants that its products are free from defects in materials and manufacturing for a period of one year from the date of shipment. Blackrock will, at its option, repair or replace any product that does not comply with this warranty. This warranty is voided by: 1. Any modification or attempted modification to the product done by anyone other than an authorized Blackrock employee 2.
