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Geodesic Sensor Net User Manual

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Geodesic
Sensor Net
Technical Manual
Electrical Geodesics, Inc. Geodesic Sensor Net Technical Manual
Geodesic Sensor Net Technical Manual 01-31-07
Electrical Geodesics, Inc. (EGI)
500 E 4th Avenue, Suite 200
Eugene, OR 97401 USA
+1.541.687.7962 (tel) +1.541.687.7963 (fax)
www.egi.com
0297

Table of Contents

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Geodesic Sensor Net Specifications

General IconGeneral
BrandGeodesic
ModelSensor Net
CategoryMedical Equipment
LanguageEnglish

Summary

GSN Introduction

Safety

Provides essential safety precautions and warnings for using the Geodesic Sensor Net.

Basic Operation

Outlines the fundamental principles of connecting and operating the GSN.

HCGSN

GSN 200

Electrode Replacement

Details the procedure for replacing electrodes on the GSN 200.

SAFETY

General Safety

Covers fundamental safety warnings regarding electrical connections and supervision.

Skin Irritation

Provides precautions regarding potential skin irritation during prolonged use.

Subject Cross-Contamination

Warns against cross-contamination between subjects using shared towels.

Cords, Connectors, and Cables

Emphasizes inspecting and maintaining cables and connectors to prevent electrical shock.

SERVICE AND MAINTENANCE

Caring for Your GSN

Provides detailed steps for cleaning, rinsing, and disinfecting the GSN.

Screening Subjects/Patients

Outlines criteria for selecting subjects and preparing their hair for GSN application.

APPLYING THE GSN

Planning

Covers preparations before applying the GSN, including subject preparation.

Preparing the Electrolyte Formulation

Provides step-by-step instructions for preparing HydroCel Saline and HydroCel HS.

Head Measurement

Explains how to perform head measurements for calculating Net size.

Net Application

Provides comprehensive steps for applying the GSN to the subject's head.

Soaking the Net in Electrolyte

Details the process of soaking the GSN sensors in electrolyte solution.

Proper Position of Hands

Explains the correct hand positioning for stretching and applying the Net.

Initial Adjustments

Covers making initial sensor and strap adjustments for comfort and fit.

Verification and Additional Adjustments

Guides on checking sensor placement, symmetry, and making final adjustments.

Filling Pedestals with HydroCel HS

Provides instructions for filling pedestals with HydroCel HS for HCGSNs without sponges.

Removal

Details the procedure for safely removing the GSN from the subject's head.

RINSING AND DISINFECTING

Rinsing

Outlines the standard rinsing procedure applicable to all GSN models.

Rinsing (HydroCel HS)

Describes additional rinsing steps required for HCGSNs with HydroCel HS.

Disinfecting

Provides instructions for disinfecting the GSN using Control III solution.

CONNECTIVITIES

REPLACING GSN PARTS

Replacing Electrodes (GSN 200)

Provides instructions for replacing electrodes in the GSN 200 model.

Tools Needed to Replace Electrodes

Lists the necessary tools for performing electrode replacement.

Remove Electrode from Plug

Details the steps to disassemble the connector and remove the electrode.

Replace the Electrode

Guides on how to install a new electrode into the sensor housing.

Reassemble the Equipment

Details the steps for reassembling the connector after electrode replacement.

Replacing Sponges (HCGSN)

Provides instructions for replacing sponges in the HCGSN model.

Position Sponge in Pedestal

Guides on correctly positioning a new sponge in the pedestal.

NET FAQS

Maximizing GSN Lifespan

Lists key practices to prolong the useful life of the GSN.

TROUBLESHOOTING

EEG Contains Excessive Noise

Discusses sources of noise and methods to reduce it in EEG recordings.

EEG of Poor Quality

Describes common characteristics of poor quality EEG signals and their potential causes.

Improper Net Preparation and/or Application

Provides guidelines to diagnose and resolve issues related to Net preparation and application.

Loose, Improper, or Faulty GSN Connectivity

Addresses problems arising from connection issues or faulty sensor connectivity.

Faulty Sensors

Offers guidelines for determining if an individual sensor is faulty.

GSN PINOUTS