kt88-3200 opration 090911

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Copyright and Trademark Notices This document contains information that is protected by copyright. All rights are reserved. No part of this document may be photo copied, reproduced or translated to another language without prior written consent of Contec Medical Systems Co., Ltd. The information contained in this document is subject to change without notice. Responsibility of the User KT88-3200 digital brain electric activity mapping should be used by the physicians who have received professional training. The user should read this operational manual carefully before operating KT88-3200, and operate it in accordance with the manual. The user should observe KT88-3200 and the patient when operating it. The user is responsible to supply the use situations of KT88- 3200 to Contec Medical Systems Co., Ltd. Responsibility of Contec Medical Systems Co., Ltd Contec Medical Systems Co., Ltd supplies the standard product to the user. Contc Medical Systems Co., Ltd installs and debugs KT88-3200 and trains the physicians. KT88-3200 should be repaired by Contec Medical Systems Co., Ltd. Contec Medical Systems Co., Ltd should use original accessories to repair KT88-3200. Contec Medical Systems Co., Ltd is responsible to answer the questions about KT88-3200 on time. Other Important Information The information in this document is subject to change without notice. Contec Medical Systems Co., Ltd makes no warranty of any kind with regard to this material, including, but not limited to implied warranties of merchant ability and fitness for a I

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Page 1: KT88-3200 Opration 090911

Copyright and Trademark Notices

This document contains information that is protected by copyright. All rights are reserved. No part of this document may be photo copied, reproduced or translated to another language without prior written consent of Contec Medical Systems Co., Ltd. The information contained in this document is subject to change without notice.

Responsibility of the User KT88-3200 digital brain electric activity mapping should be used by the physicians who have

received professional training. The user should read this operational manual carefully before operating KT88-3200, and

operate it in accordance with the manual. The user should observe KT88-3200 and the patient when operating it. The user is responsible to supply the use situations of KT88-3200 to Contec Medical Systems

Co., Ltd.

Responsibility of Contec Medical Systems Co., Ltd Contec Medical Systems Co., Ltd supplies the standard product to the user. Contc Medical Systems Co., Ltd installs and debugs KT88-3200 and trains the physicians. KT88-3200 should be repaired by Contec Medical Systems Co., Ltd. Contec Medical Systems Co., Ltd should use original accessories to repair KT88-3200. Contec Medical Systems Co., Ltd is responsible to answer the questions about KT88-3200 on

time.

Other Important InformationThe information in this document is subject to change without notice.

Contec Medical Systems Co., Ltd makes no warranty of any kind with regard to this material, including, but not limited to implied warranties of merchant ability and fitness for a particular purpose. Contec Medical Systems Co., Ltd assumes no responsibility for any errors of omissions that may appears in this document. Contec Medical Systems Co., Ltd makes no commitment to update nor to keep current the information contained in this document.

Warranty InformationYour CONTEC Warranty

Contec Medical Systems Co., Ltd (hereinafter referred to as “ Contec”) hereby warrants that Contec products (hereinafter referred to as “Products”) shall be free from defects in material and workmanship under normal use, service and maintenance for the warranty period of such Product from Contec or an authorized distributor or representative of Contec Normal use, service and maintenance means operation and maintenance in accordance with appropriate instructions and/or information guides. This Warranty does not apply to the Products caused by any or all of the following circumstances or conditions: Freight damage;

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Part and/or accessories of the Products not obtained from or approved by Contec; Misapplication, misuse, abuse, and failure to follow the Product instruction sheets and/or

information guides; Accident, a disaster affecting the Products; Alterations or modifications to the Products not authorized by Contec; Other events outside of Contec ’s reasonable control or not arising under normal operating

conditions.The remedy under this warrenty is limited to the repair or replacement without charge for labor or materials, or any productrs found upon examination by contec to have been defective. This remedy shall be conditioned upon receipt of notice by contec of any alleged defects promptly after discovery thereof within the warranty period. Contec ’s obligation under the foregoing warranty will further be conditioned upon the assumption by the purchase of the products ( ) of all carrierⅰ charges with respect to any products returned to contec’s principal place or any other place as specifically designated by contec or an authorized distributor or representative of contec, and ( )ⅱ all risks of loss in transit. It is expressly agreed that the liability of contec is limited and that contec does not function as an insurer. A purchase of a product, by its acceptance and purchase thereof, acknowledges and agrees that contec is not liable for loss, harm or damage due directly or indirectly to an occurrence or consequence therefrom relating to the products. If contec should be found liable to anyone under any theory (except the expressed warranty set forth herein) for loss, harm or damage, the liability of contec shall be limited to the lesser of the actual loss, harm or damage, or the original purchase price of the product when sold.Excluded from the limited warranty set forth above are consumable items such as paper, batteries, electrodes, patient cable, lead wires and magnetic storage mediums.Except as set forth herein with respect to reimbursement of labor chages, a purchase’s sole exclusive remedy against contec for claims relating to the products for any and all losses and damages resulting from from any cause shall be the repair or replacement of defective products to the extent that the defect is notice and contec is notified within the warranty period. In no event, including the claim for negligence, shall contec be liable for incidental, special or consequential damages, or for any other loss, damage or expense of any kind, including loss of profits, whether under tort, negligence or atrict liability theories of law, or otherwise. This warranty is expressly in lieu of any other warranties, express or implied, including, but not limited to the implied warranty of merchant ability and the warranty of fitness for a particular purpose.Preface This operation manual introduces you the total function of the KT88-3200 digital brain electric activity mapping and the detail operation procedure. Please read the manual carefully before use the machine, which makes you easier to use it.

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Table of Contents

Chapter 1 Introduction..................................................................................................................1

Chapter 2 The main technical index.............................................................................................1

Chapter 3 Technical device...........................................................................................................2

Chapter 4 Software and Hardware setup Wizard.......................................................................3

Chapter 5 The system operation.................................................................................................13

Chapter 6 Notice..........................................................................................................................37

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Chapter 1 IntroductionThe features of digital brain electric activity mapping: The digital brain electric activity mapping transit head bioelectrical activity into marked intuitionistic image, it becomes an advanced, no wound technical instrument for skull sickness, qualitative analysis for head enginery. Characters for this equipment are as follows: Help to bulge and recognize EEG partial features. Recognize the subtle features which was easy to be ignored ago. Help to academic communication, especially for the amateurs. Evaluate the unusual conditions in the traditional EEG and the unexplained situations by eye

measure.

Chapter 2 The main technical index 1. Channels: 16 lead EEG, 19 lead ECG, 32 lead EEG or user-defined lead EEG2. The normal working condition

a) The range of environment temperature 5℃~40℃

b) Relative humidity range:≤85%

c) Voltage:USB DC 5V

d) Atmospheric pressure range:700hPa~1060hPa

3. Calibration voltage: sinusoidal signal 5mm / 50μV; error: ± 5%4. Scan speed: 30mm / s ± 5%

5. Noise level: ≤ 5μV

6. Common-mode rejection ratio: ≥ 90dB

7. Instrument's largest energy-consuming ≤ 250VA

8. Baseline drift: ≤ 1mm

9. Input Impedance> 10MΩ

10. 50 Hz interference suppression: ≥ 30 dB

11. Frequency Characteristics: Instrument Input 0.8 Hz ~ 30 Hz, -3 dB, 50μV sinusoidal AC

signal should not be distorted.

12. Resistance to polarization voltage: Add ± 300mV DC polarization voltage deviation is

less than ± 5%

13. Power: 220V ± 22V; 50 Hz ± 1 Hz

14. Fuse: AC 220V; 3A

15.Number of channels: 16-channel EEG16. Registration Standard Number: Q/QKT01-2007

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17. Product registration number: Hebei drug possession of firearms (quasi-) character No.

2,210,019, No. 2003

18.Medical Device Manufacturing Enterprise License: Hebei Food Drug Administration

20,050,526 Number of firearms production

19. Transport and storage

a)The range of Environment temperature:-40℃~55℃

b)Relative Humidity range:≤90%

c)Atmospheric pressure range:86kPa~106kPa20. Product Safety Type: II Class BF-based Application Part

This operation manual is used for KT88series digital brain electric activity mapping. Because of the different setup in every series of machines, this manual is accordance to the largest configuration.

This operation manual is used for KT88-3200 series digital brain electric activity mapping. Because of the different setup in every series of machines, this manual is accordance to the largest configuration.

Chapter 3 Technical device

CPU:Pentium, more than 4 2.0G(Dual Core Processor if have the function of video )EMS memory:more than 512M(more than 1G DDR2 if have the function of video)

Mainboard:Support USB2.0,Recommend to use Intel chipset motherboard

Hard drive:More than 80G

Display card:More than 64M

Printer:600dpi Laser printers

Screen: >17 Inch

CD-ROM:More than 24X CD-ROM(or choose CD-ROM system)Operation System:Microsoft Windows 2000/XP(Recommended Windows XP)resolution ratio:More than 1024*768

Color:More than 24 colors

Font: Natural

interface:USB2.0

Those intercalate can changed in Windows operating system Display Properties, if you have doubt in change the system configuration, please refer to Windows operating system to get help.

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Chapter 4 Software and Hardware setup WizardSoftware Setup Wizard: First of all, put the KT883200 CD-ROM into drive, and then function the KT883200 Setup.exe. The following will pop-up the dialog box "Welcome to the KT883200 Setup Wizard"

chart 1To continue, click next, if you would like to select a different folder, click Browse. Click

“continue” 3 times

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chart 2

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chart 4There will be shown "ready to install", click to install, pop-up "finish install wizard

KT883200", the installation is complete.

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chart 5

chart 6

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Chart 7Select language and video and then c lick the button of "OK" to enter the KT883200 system.

Uninstalling the software:Method 1.

Click "Start" menu in the "All Programs" to find the installation package to install

KT883200, click the following icon to uninstall the software.

Method 2.Find KT883200's installation directory (usually installed by default under the C drive), open the installation directory to find and double-click the icon below to unload

Hardware Wizard:

(1)Amplifier and Flash lamp

After installing the software, Link the EEG amplifier and the USB of computer main frame, then the computer will be prompted to find a new hardware:

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chart 8Choose the third one:”no not this time”, click to next to continue, then will show a Notice, click to continue.

chart 9

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chart 10There will be shown “Completing the Wizard”, click “Finish”.

NOTICE :after click "finish",the computer will be prompted to find a new hardware again. And you can setup the hardware according to the steps above again. The hardware will finish the setup when setup is complete.

chart 11(2) Video (Optional Function) (1)Link the video class and one of USB port in computer , then the computer will setup the

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driver automatically. (2}Please the softdog inset into one of USB port in computer, the softdog`s driver will be setup as same as the ampliter`s driver.

Electrode Wizard:1 The placement of electrodeThis system use silver chloridize channel electrode, drip in brine liquor at 5% at work.. Wash down with clean water after using and airing everyday. Cover it to avoid exposal to protect the chlorination on electrode.

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2 Method of electrode placement 10 ~ 20 international standards Electrodes Nowadays, Placement method become internationally accepted methods , It is simple, reasonable, clear anatomical landmark, while its electrode spacing equivalent, symmetry, and easy to compare and placement.

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All the name of the poles are:FP1, FP2, F3, F4, C3, C4, P3, P4,

O1, O2, F7, F8, T7, T8, P7, P8;(标准 16 导)Fz, Pz, Cz, PG1, PG2, AFz, FCz, CPz,

CP3, CP4, FC3, FC4, TP7, TP8, FT7, FT8(附加 16 导)The pole location on the head shows int the follow picture:

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3.Connection lead At least two electrodes for EEG was recorded, an electrode linking with the first gate of ECG equipment, another one in second gate, Between the two electrode potential difference recorded EEG was formed.The electrode Placed in scalp is named active electrode or detection electrodes, the electrode Placed in ear or zero potential is named unrelated electrode or reference electrode. EEG leads have 2ways: one is unrelated electrode unipolar leads method, another way is only use the bipolar lead of the activity electrode to instead of the unrelated electrode.(1) Unipolar lead (Reference lead): The activity of the scalp electrodes and unrelated to the ipsilateral electrode is linked; Its depiction of the EEG recorded activity for the electrode and unrelated to the potential difference between electrodes.(2) Bipolar lead: It’s the way of described and record two Active electrode in scalp and the two gate in ECG is linked to instead of use unrelated to the electrod.

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Picture of Connecting Flashlight

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Picture of Connecting Amplifier

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Picture of Actual Connecting appearancePlace the electrode according to international system electrode emplacement.

Chapter 5 The system operationTurn on the Brain.exe and enter to the map below.

Picture 1

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Click the “ New Patient”; the physician input the parameters according to the patients’ condition. The name item could input English or Chinese. Press “Ctrl+ Space” in keyboard would switch into Chinese input mode, and then input Chinese name. The physician can choose the acquired method (Roll View or Movie View) by mouse’s arrowhead. Click “Gather” and enter the picture 3.

Picture 2The physician can choose the gather mode(16 montages or 19montages or 32 montages or User-

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defined), Click “OK” and enter the picture 4.

Picture 3The video setup Click “OK” and enter video setup(as picture 4). The physician can set up the quality, differentiate rate and other parameters of acquired picture.

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Picture 4The acquisition control panelIn the acquisition interface, the left is the acquired wave to display the patient’s EEG at real time and the right is the acquisition control pannel to display various of premiums events and control the acquired methods.

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Picture 5

The acquisition control panelIn the acquisition interface, the left is the acquired wave to display the patient’s EEG at real time and the right is the acquisition control panel to display various of premiums events and control the acquired methods.

Click button, the physician could chose acquired velocity in

practice.

Click button, the physician could adjust the plus of EEG in practice.

Click button, the “frequency disturb” would get rid of AC work frequency disturb

which is recommended to use for batter images.

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Click button,the physician could chose the Band stop filter of EEG in practice.LBD

would light if one of them was in bad connection.

Click button to choose acquisition method according to practical use.

Click button , the physician could chose reference electrode at will when gather EEG according to practice.

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Picture 6Click “end” to stop EEG acquisition.

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Picture 7This interface is for user to replay EEG in sequence.

button is used to display 32-channel EEG in same screen.

button is used to display 16-channel EEG in same screen..

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button is used to display 8-channel EEG in same screen.Physicians can be where it is needed to add tag information, specifically as follows: Click the

toolbar button , click left mouse button where you want to add a tag, pop-up shown in picture

Picture 8 window, the corresponding location displays the flag icon .

Picture 8

The physician can choose a segment of EEG to analyze. The method is as follow: remove the mouse to the beginning, click the left button inside the time rectangle, you can see a small red triangle, then select the end of the EEG with the right button of the mouse in the same way. so as to choose the EEG segment.The chosen EEG segment turns into white. Remove the mouse to EEG, Click the right key of the

mouse, and appear items. Move mouse to “Display

Speed”, it changes to , The physician could chose

display speed in practice. Move mouse to “display Amp”, it changes to

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the physician could chose display plus in practice. Move

mouse to “Auto Play” , and then the

physician can choose to play EEG actually.

If you want to cancel the segment of EEG, you can just click buttont. Finally, Click

button to dispose the chosen EEG segment to FFT exchange and insert value operation.

After the data disposal is over, the EEG is to be analyzed. Click button enter menus as

follows:This menu is to observe power chart distributing map. Click left button of mouse on any power chart map could magnify this special lead power chart map.

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Picture 9 Power Spectrum Graph

Click button as follows:The left of this menu is to display the patient’s EEG, and the right is the look down relief map.

button is used to switch in the absolute relief map and comparative

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relief map.

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Picture 10 BEAM

Click button as picture11:

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Picture 11The physician can design compressed chart map according to menu tips: After the design is over, Click “OK” button as picture 12:

This menu is used to display compressed chart map of any two lead of the patient.X means frequency , the unit is Hz.Y means power, the unit is µ v2 /Hz.Z means dimension of the compressed chart map , it can be decided by the physician

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Picture 12 Compressed Spectrum Graph

Click button , and enter the picture 13.

The left of this menu is the patient’s EEG. The right is the patient’s 1—30Hz relief map.

Click button to exchange absolute EEG relief map and comparative EEG relief map.

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Picture 13 Monochromatic View BEAM

Click button , and enter the picture 14.

The right of the menu is the patient’s three-dimension stereoscopic EEG.Press every EEG and turn it, which is easy for the physician to definite it.

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Click to exchange absolute EEG and comparative EEG.

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Picture 14 Three--dimensional rotary BEAM

Click button and enter picture 15.

Click button to observe the patient’s side-view EEG from left or right.Click button to exchange absolute EEG and comparative EEG.This menu is the patient’s side-view EEG.

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Picture 15 Side View BEAM

Click button and enter the picture 16.This menu is Numerical BEAM.

This menu is patient’s power chart distributing map.

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Picture 16 Numerical BEAM

Click button to switch to power chart map. Click any lead , you could magnify it.

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Picture 17 Spectrum Rectangle Graph

Click button and enter the picture 18.

The physician could divide frequency segment according to this menu. Click “OK” button to save and return or “Cancel” button to cancel and return after partition.

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Picture 18

Click button after return and enter picture 19.

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Picture 19In this menu, the physician can choose the channel method.(monochannel or double-channel).After the choice, Click “yes” and display the accordant EEG.

Lead setting instruction: click right of the mouse to customize the any lead from 3 to 9 lead (the first two are default leads which can not be modified), click the left of the mouse to drag any lead out of the channel list box, and this operation finishes the delete of one lead. If you need to add lead only by using the mouse to click any two electrodes in the dialog box to complete a operation of add Settings, click the button of "ok" after finish 32 leads setting. The next time you check leads, the setting will show to you.

Click button and enter the picture 20.

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Picture 20

In this menu, the physician can design filter according to the patient’s EEG to clear EEG’s disturbance and false balance.Click “OK” button and appear EEG which has being filtered.

Play

Click button in the toolbar would play EEG from beginning to end automatically, and

button in the toolbar to stop play.(picture 21)

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Picture 21

Double click the left of mouse in the EEG waveform area, dialog box will appear as shown in the figure 4-19, and select the any one of the three red line in the dialog, after that drag the mouse and the gain of waveform, period and frequency will be changed.

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Picture 22

In "under control" menu select "the system Settings" menu items, as shown in figure, 23 dialog box will appear.

Picture 23As the menu on the left side: (1)Select" infromation setting", you can edit the information of hospital.( as shown figure 23); (2)Select"parameter setting", you can set the parameters in the process of waveform replay.

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( as shown figure 24). (3)Select "color setting", you can set color of background the induced event and so on.( as

shown figure 25); The operation of this function is following:

Click the left of the mouse to the button for color after the color change in advance. (4)Select" event add setting", the user can add the event himself , name it and select color ( as

shown in figure4-26). The operation is following:

Click the left of mouse to the edit fram after "name" and input the name of the adding event, click the color button below, click the "add" button to finish the adding of the user-defined induced event; if you need to delete the induced event, you can select the induced event item with the left of the mouse and click "delete" button, in this way the delete is completed.

Click" default setting", all the information will be defaulted and show in this window. Click "definite" to save it and if you open the case again, all the information is the same as the defaulted information.( each time you set the parameters, and it will come into effect the next time you open it).

Picture 24

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Picture 25

Picture 26

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Click ,you will come into the figure 27video replay control panel will appear on the

right side of the replay graph. The doctor can control replay in this panel. "play" will make the waveform show from beginning to end consequently and "stop" will make it stop. Under the situation of no play, beginning and ending are those of EEG, and "increase degree" and "decrease degree" is the gain which can adjust the EEG.

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Picture 27

Click to come into the calibrate interface which only used for manufacture's checking.

Click ,the report will be print out,shown in picture 28。

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Picture 28

You can choose the different model of printing in the " printing model" of the "printing out" menu. You can also choose the "model editor" to edit the report model and save it.

Graph printing :

According to picture 5,pictures 7-15, user can print out the graph according to the need.

The operation is following:in the any interface of picture 5,pictures 7-15,click and the

menu 29will appear,and then click “definite”,you can print out the topographic map and EEG graph.

As show in the figure 29, you can set the printing area range and you can input the number of the first page and the last page, if you want the current page, set the range to 1-1.

Picture 29

Select patients :

Click “Select patient” in the menu as picture 1 and enter picture 30.

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Picture 30As shown in the figure of 30, click any one case with one click of the left mouse, the

information of the patient will be shown in the right side of the column; if there are many cases you need to choose, you can also do conditional fast search to find the case you need.

The operation is following:Select the "select search" with the left of mouse,click the left of mouse to select in the small rect

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angular box before screening case conditions, input condition content and click the "search" . The content that accords with the case condition will be displayed in the list on the left,and for those cases do not meet the conditions of the case, the system will point out, Click the "clear up", the content of the user input will be delect.

by clicking the left of mouse to select cases, and clicking the "open" button ( or double click cases), you can enter the cases of patient according to the figure of4-5. The rest operation is the same to that of the "new patient".

Patient list management :

Click “Patient list management” in the menu and enter picture 31.

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Picture 31As shown in the menu of figure 4-31, you can choose cases(You can also make use of the

function of research to find the case you need.), and modify it (them) in the right side of the column. After that , click "save" and the prompt will appear, and you click "yes", you can save the modified case. You can also delete the cases, click and select the number of the case you need to delete, and them click "delete", you delete the case.

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Data format conversion:

As shown in the figure 4-1, click " data format conversion", you can come into the figure 32. With the tools of format conversion, you can transform the case into EDF、ASCII form in order to data or academic exchange. Click the button of "Data Type" to select the product model and click "Browse"Button to find the cases file path (* eeg) on the second line left side, click the button "Data Transform" to begin the data format conversion, if the conversion is successfully, the system will offer prompt.

Picture 32 Segment saving:

Open the patient case to examine, physician can choose a segment of given waveform to save according to the requirement. And the steps are as follows: below the last one lead waveform of the beginning place of the waveform segment selected ,click the left key of mouse , and there will

be the red triangle sign " ". Correspondingly , at the end of the waveform.,click the right key

of mouse ,and you will pitch on a segment of waveform. As shown in the figure4-1, you select " save segment" in the menu, the figure 33 will appear.

Picture 33

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input the name of the segment, click " OK" to save it. If you need to view the old cases, you can choose one case with left of the mouse, click the "segment:" shown in the figure 30 and prompt of the segment selection according to the figure 34.select the segment and open the waveform.

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Picture 34

Event list :

Click the press in the tool column, and come into the event list as shown in the

figure35, you can find the name of the induced events and time of those events happen

Picture 35 Multilingual interface :

In the Chinese interface, choose "system control" - > "Language Select" - > "English" switch to English interface state;if System is in English interface state, choose the "System Configure" - > "Language the Select ->"Chinese" switch the system to Chinese interface state. The same operation ia also applicable to other languages.

Exits :

Choose the item of "Exit" in the manu of "Case Management" or click on top right corner

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with the mouse or the up/down arrow to select the event, and click the right forward arrow to switch into the waveform of the induced event.

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of the menu to exit from KT88 analytical system of digital network EEG topography.

Chapter 6 Notice

The notice for installation Don’t hang anything on the power wire and be treaded by people. The machine needs good ground cable. The electric resistance isn’t more than 4 . don’t use

the heat pipe or water pipe as the temporary ground cable. All the holes at the back of the machine should not be covered. Otherwise, the machine will

be damaged because it’s too heat.The notice for application The power voltage and frequency should be 220V and 50Hz. Don’t cover anything on the holes at the back of the machine. Don’t put the machine in a humid environment. When cleaning the machine, please take the

plug away from the socket. Don’t use the liquid cleaner or the alcohol to wash it. Please use the wet cloth to wipe it. When the machine meets thunderstorm or it stays for a long time, make sure that the plug is taken away from the socket.

The cables should be used in a correct way. In the cold winter, make the machine heat in advance and then use: in the hot summer, don’t

turn on the machine for a long time. For example, when the temperature in the room is over 35℃, the machine should be turned off after used for over 2 hours, and then turn it on again.

In the process of waveform collection by using apparatus, please don't keep the screen savers setup being on in order to avoid affecting waveform collection. At the same time , in the process of waveform collection , don't run other program or course, and pay attention to keep float windows such as the input methods window hiding.

The notice for protection Don’t open the machine without authorization. The machine should be opened by the

experienced technicians. Please take the plug away from the socket when meeting the following conditions:

The power wire and the plug are broken. Something drops into the machine. The machine can’t work.

Maintenance and troubleshooting Problem Cause Correction The power light isn’t light. 1. The power plug isn’t put in

the socket.Put the power plug in the socket.

2. The power isn’t connected with the mainframe, or they’re

Connect the power wire with the mainframe tightly.

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not connected well.3. The power is broken. Connect with the Technical

department of Contec Medical Systems Co., Ltd

The display light isn’t light. 1. The display plug isn’t connected with the mainframe.

Connect the display plug with the mainframe.

2. The power of the display isn’t turned on.

Turn on the power of the display.

The display’s light is light but no display.

1.The display’s wire isn’t connected with the mainframe.

Connect the display’s wire with the mainframe.

2.The light-control button is turned to the darkest.

Adjust the light-control button.

3.The display is broken. Connect with the technical department of Contec Medical Systems Co., Ltd

The display’s light isn’t light and no display.

The display is broken. Connect with the technical department of Contec Medical Systems Co., Ltd

The printer isn’t printed. Read the related part of the operation manual.

The print’s color is too light or not clear.

The ink is used up. Change another new ink.

The printer doesn’t work. 1.The print line isn’t connected.

Connect the print line tightly.

2.The print line is broken. Change another new print line.3.The procedure of the print is wrong.

Turn off the computer, and then turn on the printer, and the computer.

EEG is disturbed a lot. 1.The ground cable isn’t connected well.

Place the ground cable in a standard way.

2.The electrode is corroded. Change the new electrode.3.The cramp of the cable is corroded.

Change the new cable.

4.The cable is broken. Change the new cable.5.The hair is too dirty. Wash the hair.

One part is disturbed a lot. The electrode of that place isn’t connected well.

Wear the electrode again.

Some channel is disturbed a lot.

The electrode of that place isn’t connected well.

Wear the electrode again.

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Appendix The principle of EEG relief mapEEG relief map is a new method to analyze head bioelectricity in accordance with computer technology and computer picture disposal technology. As a new method around the world right now , it transforms huge complex but abnormity head bioelectricity to a form which could reflex quantitative change and orientation by computer. It displays complexion about diversification of head energy, it becomes an excellence , no wound and scientific method for skull sickness diagnose and research on head energy quantitative analysis. It is useful to analysis correctly on head energy using this technology .Principle and method:Placement of electrodes: lay 16 lead on outboard head according to international 10/20 system method standard, collect head wave signals and make A/D (modules transform) transform.F-transform: Transform the collected head wave signals to power chart map form to display the relationship about head wave frequency flied and power. Frequency assort:δfrequency flied: 0.8~3.8Hzθ frequency flied: 4.0~7.8Hzα1 frequency flied: 8.0~9.8Hzα2 frequency flied: 10.0~12.8Hzβ1 frequency flied: 13.0~19.8Hzβ2 frequency flied: 20.0~29.8Hz

Insert value operation:Find out some insert function according to two-dimension insert inside value principle based on these known sixteen number, calculate 2500 point numbers.

Print:Print the received data to module picture and get power relief picture.

Usual relief map:Some power of δ wave relief map higher than regular value at 8 level and those exceed would belong to abnormities.Some power of θwave relief map exceed normal value at 10 level local or whole head belong to abnormities.Evident un-symmetry of αwave relief map about the distributing of the two hemispheres. Those exceed 3 or 5 belong to abnormities.

Power chart relief map of patient:Most of the patient’s relief map would be abnormity and main of those are power exceed of δwave and θwave, especially evident in the forward of head. Followed by the increase of the power of α2wave (namelyαwave) and the power of βwave also has trend to increase.

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