Page 1 PROFESSIONAL MEDICAL PRODUCTS CONTEC 8000 WIRELESS ECG WORKSTATION - 12 CHANNELS User manual ATTENTION: The operators must carefully read and completely understand the present manual before using the product. CONTEC8000G (Gima 33316) 0123 CONTEC MEDICAL SYSTEMS CO., LTD No.112 Qinhuang West Street, Economic & Technical Development Zone, Qinhuangdao, Hebei Province, PEOPLE’S REPUBLIC OF CHINA...
Page 2 Preface Please read the User Manual carefully before using this product. The operating procedures specifies in this User Manual should be followed strictly. This manual describes in detail the operation steps which must be noted, the procedures which may result in abnormality, and possible damage to the product or users. Refer to following chapters for details.
Page 3  Contraindications: no. Warning: To ensure safety and validity, please use the accessories recommended by our company. Repair and maintenance shall be carried out by professional personnel approved by our company. Responsibility on the user  This equipment should be used by the physicians who have received professional training, and kept by special personnel.
Page 4 Statement Our company owns all rights to this unpublished work and intends to maintain it as confidential information. This publication is used only for reference of operation, maintenance, or repair of our equipment. No part of this can be disseminated to others. Our company will not take any consequences or responsibilities for using of this manual for other purpose.
Page 5: Table Of Contents
Contents Chapter 1 General Information..................... 1 1.1 General...........................1 1.2 Technical Specification....................2 1.3 Function and Speciality....................4 Chapter 2 Safety Precautions......................7 Chapter 3 Warranty Provisions....................10 Chapter 4 Device Operation Precautions................... 12 4.1 Precautions before use....................12 4.2 Precautions during operating..................12 4.3 Precautions after use....................13 Chapter 5 Install and Start......................14 5.1 System Configurations and Software Explanations..........14...
Page 6 6.1 Wilson Lead System....................30 6.2 Frank Lead System..................... 33 6.3 Electrode Installation Instructions and Precautions..........34 Chapter 7 Software........................37 Chapter 8 New Patient Sampling....................40 8.1 Input New Patient Information.................. 40 8.2 ECG Sampling......................43 8.3 Analysis........................52 Chapter 9 Functions Explanation....................53 9.1 Shortcut task........................53 9.1.1 New Patient..................
Page 7 9.1.5 Lead Placement...................79 9.1.6 Help......................81 9.1.7 Exit.......................82 9.2 Analysis........................82 9.2.1 Reanalyse..................82 9.2.2 ECG....................88 9.2.3 FCG....................101 9.2.4 HFCG....................106...
Page 8 9.2.5 QTD....................109 9.2.6 HRV....................110 9.2.7 STLE....................114 9.2.8 HRT....................117 9.2.9 PMECG...................120 9.2.10 SAECG..................123 9.2.11 VCG....................127...
Page 9 9.2.12 TVCG....................131 Chapter 10 Maintenance......................134 10.1 Battery maintenance....................134 10.2 Maintenance after use.....................135 10.3 Inspection and Maintenance of lead cables and electrodes.........136 10.4 Disposal of the product after scrapping..............136 10.5 Others........................136 Chapter 11 Troubleshooting......................138 11.1 AC Interference.......................138 11.2 EMG Interference....................138 11.3 Baseline Drift......................
Page 10: Chapter 1 General Information
Chapter 1 General Information 1.1 General The device can be used for 12-lead simultaneous ECG sample, replay, automatic analyses and diagnose, Frequency Cardiogram (FCG), High Frequency ECG, QT internal Dispersion analyse, Heart Rate Variability (HRV) analyse, myocardial ischemia (STLE) analyse, Heart rate turbulence (HRT) analyse, Pacing ECG analyse, Vector Cardiogram (VCG), Time Vector Cardiogram (TVCG) and SAECG, etc., which reflects user’s heart locomotion circumstance, providing credible evidence for doctors to diagnose.
Page 11: Technical Specification
 Indicator It is used to indicate the device's working state.  Lead interface Connect according to the lead number indicated on the panel.  USB interface Charge for the device by connecting with USB in computer or 5V adapter with the data line.
Page 12 6. Gain: 5, 10, 20 mm/mV, accuracy: ±5 % 7. Gain control: continuous variation is available 8. Gain switch: When the gain changes, there is indication for the recording output. 9. Gain stability: After startup for 1 minute, the gain variation per minute shall be less than 0.33%.
Page 13: Function And Speciality
23. Amplitude-frequency characteristic: Rated input amplitude Input frequency and waveform Relative output response 0.67 Hz ~ 40 Hz, sinusoidal ±10%a 40 Hz ~ 100 Hz, sinusoidal +10%, -30%a 0.25 100 Hz ~ 150 Hz, sinusoidal +10%, -30%a 150 Hz ~ 500 Hz, sinusoidal +10%, -100%a ≤1 Hz ,200 ms, triangular +0%, -10%b...
Page 14 seeking points, and it can obtain reliable auto-recognizing sort of arrhythmia, which can make the analyzing report and conclusion more valuable. 3. The problem of wave over-lapped, caused by baseline shift or excessive crest is solved by adjusting the leads position. The leads position can be arranged automatically. 4.
Page 15 12. Strong and perfect base management of case makes it convenient to exceed, lookup, delete, backup, recovery and modify the case history data, and sustain combined conditions query function. 13. Abundant setting items are provided in system setting. You can set basic information, the operation of software, sampling data, wave analysis, database management, printing course ect according to your need.
Page 16: Chapter 2 Safety Precautions
Chapter 2 Safety Precautions 2.1 Make sure the device is placed on a flat surface before use, and avoid strong vibration or shock when moving. 2.2 Complete power supply system and proper grounding should be provided. 2.3 The design of this device has mature consideration of security, but operator should never neglect attention to device state and patient’s observation.
Page 17 corresponding preventive measures.  The device or system should not be used close to or stacked with other equipment, and if it is necessary to do so, please guarantee that the device is functioning properly in its using configuration.  Use of unspecified accessories, transducers and cables other than those sold by manufacturers of device or system as spare parts for internal components may result in decreasing of gain and immunity of the device or system.
Page 18 2.10.2 Winding and unclear end position of S wave and T wave may cause error in measurement. 2.10.3 When R wave is uninspected caused by some leads off or QRS wave low voltage, the heart rate measurement may deviate greatly from the correct. 2.10.4 In case of QRS low voltage, ECG axis calculation and border-point identification of QRS wave are not always reliable.
Page 19: Chapter 3 Warranty Provisions
Chapter 3 Warranty Provisions 3.1 Under normal use, namely operate it according to the User Manual and notices, if there is any trouble, please contact our customer service department. Our company has the factory record and user files for each device, user has free maintenance service from purchasing date according to the following terms and conditions.
Page 20 3.7 In the warranty period, maintenance charges, the company proposed to continue the use of "Maintenance contract system". Please contact our customer service department advisory for more details.
Page 21: Chapter 4 Device Operation Precautions
Chapter 4 Device Operation Precautions 4.1 Precautions before use 4.1.1 For safe and effective use, please read the user manual carefully before operation. 4.1.2 Read the contents of installation and startup described in User Manual before installing, to avoid equipment damage. 4.1.3 Make sure the installation condition meets requirements, otherwise the software may work or display abnormally.
Page 22: Precautions After Use
4.2.2 The patient and thedevice can only be connected via lead wires through the electrodes, in order to avoid the patient touches other parts of device or conductors. 4.2.3 Patient can not move when operating the device. 4.3 Precautions after use 4.3.1 Cut off the power, gently remove the electrodes and limb clips, then remove the lead cables, do not pull with strong force.
Page 23: Chapter 5 Install And Start
Chapter 5 Install and Start 5.1 System Configurations and Software Explanations CPU: above 2.0 GHz Memory: above 1G Main board: support USB2.0, main board with Intel chips group is recommended. Hard disk: 40G or above CD ROM: CD-ROM with 24 times speed or above (or CD memory System) Operating System: Microsoft Windows 2000/XP/Vista/7 (Windows XP is recommend) Resolution: above 1024*768 Printer: 600 dpi laser printer...
Page 24: Software Installation
5.2 Software Installation First, get the installation package or CD of ECG workstation. Then run ECG Workstation.exe. (As Figure 1) Figure 1...
Page 25 Click "Next", then the interface shown as Figure 2, Figure 3 will appear. Figure 2...
Page 26 Figure 3...
Page 27 Click "Install", then the interface shown as Figure 4, Figure 5, Figure 6 will appear. Figure 4...
Page 28 Figure 5...
Page 29 Figure 6 After installing, please set printer, display resolution, etc. in your computer according to "5.1 System Configurations and Software Explanations" and restart the computer. Then the software has been installed on PC and can be used.
Page 30: Add Bluetooth Equipment
5.3 Add Bluetooth equipment Please start the ECG workstation device first before adding the bluetooth equipment. Long press the button on the front of device for one second to start it. It indicates that it can add the bluetooth equipment when the indicator is green. If the indicator is orange, the bluetooth equipment can not be added, please charge to the device in time.
Page 31 Figure 7...
Page 32 Click "Add" button, the dialogue box shown in Figure 8 will pop up. Figure 8...
Page 33 Tick the "My device is set up and ready to be found ", then the "Next" button is available to choose, click it to pop up dialogue box as Figure 9 Figure 9...
Page 34 The bluetooth adapter will automatically search for bluetooth devices around. All available devices will be displayed on the interface shown as Figure 10 once searched. Figure 10...
Page 35 Select the bluetooth symbol, then the "Next" button is available to choose, click it to pop up a dialogue box as Figure 11: Figure 11...
Page 36 Choose "Let me choose my own passkey", input the password "7762" in the textbox on right side, then click "Next", the dialogue box as Figure 12 will pop up. Figure 12...
Page 37 Please wait for its installation, then a dialogue shown as Figure 13 pops up after finishing. Figure 13 Click "Finish" to complete the installation. You can start collecting ECG data after doing all the works above.
Page 38: Startup The Ecg Workstation
5.4 Startup the ECG Workstation First, please make sure that you have added the bluetooth device. Resolution needs to be set above 1024*768, and the font of windows appearance needs to be set as normal. Double click ECG Workstation icon on the desktop to start the ECG workstation. 5.5 Uninstall the Software Choose "Start"...
Page 39: Chapter 6 Electrode Installation
Chapter 6 Electrode Installation 6.1 Wilson Lead System In this manual, all involved lead identifiers are displayed in accordance with the U.S.A. Standard. The standard can be set in "signals processing" under "system settings". The correspondence for lead identifiers and colors between European Standard and U.S.A. Standard as following: European Standard U.S.A.
Page 40 E(C2) Light blue/Yellow E(V2) Orange/Yellow C(C3) Light blue/Green C(V3) Orange/Green A(C4) Light blue/Brown A(V4) Orange/Brown M(C5) Light blue/Black M(V5) Orange/Black H(C6) Light blue/Violet H(V6) Orange/Violet The electrode placement positions of Wilson Lead System are shown as Figure 16. Figure 16...
Page 41 Chest electrodes placement positions are as followings: V1: Right margin of Sternum, and the fourth ribbing clearance. V2: Left margin of Sternum, and the fourth ribbing clearance. V3: The mid-point of the line between V2 and V4. V4: The fifth ribbing clearance of left side, and the midline of left clavicle. V5: The font line of left armpit, and the same plane of V4.
Page 42: Frank Lead System
6.2 Frank Lead System The electrodes placement positions of Frank Lead System are shown as Figure 17. Figure 17 Chest electrodes installation positions are as followings: V1: The midline of right armpit, and the fifth ribbing clearance. V2: The font midline, and the fifth ribbing clearance level. V3: The mid-point of the line between V2 and V4.
Page 43: Electrode Installation Instructions And Precautions
V4: The midline of left armpit, and the fifth ribbing clearance. V5: The back spine line, and the fifth ribbing clearance level. Use electrode piece as electrode and join the lead lines by connection line V6: The right scruff Limbs electrodes placement positions are as following: RA: Right arm LA: Left arm LL: Left leg...
Page 44 25mm-diameter range and the verge of electrode absorbing bowl. Press absorbing balls of chest electrodes to fix the chest electrodes to certain place.  Conductive paste coat should be separated from each other, chest electrodes should not be contacted each other to avoid short-circuit. ...
Page 45  Electrodes and lead cable comparison table: Electrode position Electrode symbol Right arm RA/R Left arm LA/L Left leg LL/F Right leg RL/N Breast Vl/Cl Breast V2/C2 Breast V3/C3 Breast V4/C4 Breast V5/C5 Breast V6/C6...
Page 46: Chapter 7 Software
Chapter 7 Software When you have completed and fully understood all the contents mentioned above, you can really start to use this system integrating Wilson system and Frank system into a whole. Notice: The device is a standard 12-lead sync sampling device, so it always chooses "12-lead"...
Page 47 "Express Task", "Analysis" and "Help". These menus are corresponding with the various function buttons in the main interface one by one. The "Recent Patient" shows the information of the patient analyzed at present. The column contains the patient number, name, time and remarks, etc. You can click the downwards arrow on the right of columns to choose the other patients checked to review and analyze.
Page 48 the collection time, input basic information of patient. You can not only use the "Database Management" to search, modify, backup, recover and update all cases checked, but also to review the cases. The "Quick Print" can help you to print the reports without entering the specific analysis item. You can also save the information to your own computer by different formats (PDF format or JPG format).
Page 49: Chapter 8 New Patient Sampling
Chapter 8 New Patient Sampling You can use our product after installing the software and hardware and knowing the electrode placement. 8.1 Input New Patient Information Click "New patient" button (As Figure 21) to input relative information. It is created autom tically, it is an unique...
Page 50 You can input patient information in this dialog, which is convenient to manage and query the case in future. You can also input the items you want, or input nothing to enter the sampling module directly. The item of time is always the current time. You can select sample type in “Sample Style”, or set it in “System Settings”, which can get the default sample type in next sampling and time you want to sample.
Page 51 Remark can be added in the "Other information" dialog, convenient to query (As Figure 22). Figure 22 Click "OK" to enter sampling template to sample the case. Caution: All electrodes must be placed properly before clicking “OK”, to avoid interference waveform.
Page 52: Ecg Sampling
8.2 ECG Sampling There is a delay for more than 20s before sampling to balance potential between skin and device (In fact, it takes you more than 20 seconds to input the patient information). Click "OK" in Figure 20 or Figure 22, then enter to the interface shown as Figure 23. Figure 23 If the connection between the collecting box and the computer has problem, for example, the Bluetooth is connected unsuccessfully or disconnected, then the system will prompt “Connection...
Page 53 error”(as Figure 24). Then please check the connection of the Bluetooth. Figure 24 If the lead cable doesn’t contact with body well or does not connect with patient, the system will prompt “Leads fell off” (As Figure 25), and the correlative channel will draw a straight line. For the instance, please check whether the connection between the lead cable and the patient is proper, and the connection line is good.
Page 54 Figure 25 During pre-sampling phase, the wave is yellow, waveform quality can be observed, the positions of electrodes and leads can also be adjusted. If the waveform interference is too big, then adjust by “Filter Settings” to get stable and clear waveform. In some cases, the quick print is required.
Page 55 Figure 26 During collecting process, battery power displayed on the collecyting interface in real-time, which also called the battery bar. In the following picture, the battery bar means "battery level is two", and its color is green. When the color turns to red, it means "the battery is low". Please charge the device, as the collecting can’t be continued in low battery.
Page 56 process, the prompt interface is shown in Figure 28. Attention: Please use the USB cable provided by our company to charge the device. You can connect it with a computer or use a power adapter of 5V rated voltage and rated current no more than 1A for charging.
Page 57 Figure 28 It indicates that it is in sampling phase when the waveform color is green.  In this phase, the system can sample and calculate HR at the same time, but if the lead voltage selected in “Heart Rate Channel” is a little lower, QRS waveform may not be found rightly, so the HR can not be calculated accurately, then the HR can not be displayed normally, please select the lead in “Heart Rate Channel”...
Page 58  If there is large interference source near the system, please select "PF Filter" in "Filter Settings".  If there is serious baseline drift, please select "Base Filter" in "Filter Settings".  If there is large EMG interference from patient, please select "EMG Filter" in "Filter Settings"...
Page 59 Figure 29...
Page 60 Place the electrodes according to Figure 29, then click "Start" button to enter the interface shown as Figure 30. Figure 30 The operation is the same as "Wlison Type 12 Leads". Keep the sampling time more than 5 minutes for analyzing SAECG.
Page 61: Analysis
8.3 Analysis When the sampling is over, the interface shown as Figure 31 will appear. Figure 31 Put the cursor on the dashed lines, press the left key of mouse and drag them to proper positions. Attention: Press "Set VCG Measurement Point", then switch to Frank. Click "OK" button to return to the main interface after all the calibration operations have been completed.
Page 62: Chapter 9 Functions Explanation
Chapter 9 Functions Explanation 9.1 Shortcut task 9.1.1 New Patient This contents have been explained in "8.1 Input patient information", so we won’t explain here. 9.1.2 Case database management It supports the function of automatically storing original data for each patient, you can check patient’s basic information by this function, query, select or delete patient information according to the combined conditions(As Figure 32).
Page 63 Figure 32...
Page 64 In case display area, we list latest 100 groups of cases met conditions, which is convenient for user to query conveniently and quickly. User can turn pages by the button or the edit box. It displays the information which have patients’ cases, and case style can be selected, including “Deleted”, “Undeleted”...
Page 65 patient will become the current patient and its data will be loaded in memory for processing. You can also double-click the case with the left key of mouse to load patient. Delete selected patient: Select the case to be deleted, click "Delete selected patient" to delete it. Attention: The case can't be recovered after deleting, but "Patient information"...
Page 66 Figure 33 Figure 34...
Page 67 Resume case: resume case function can resume the backup case to the existing database. The interface shown as Figure 35 will appear after clicking "Resume Case" button. Figure 35 Click “Backup Case”, the relevant information will be listed in the right. Select all cases you need to resume, click "Open"...
Page 68 Figure 36 Statistic: Case statistics function can count the items in lateral or longitudinal shown as Figure 37. The statistics result will be displayed in a list. Figure 37...
Page 69 Compare Case: Choose two cases of Wilson system in the case list, select case comparing function, the interface shown as Figure 38 will appear. Figure 38...
Page 70: Quick Print
Label Manage:Any combination of query criteria is available and can be saved as a tag. You can add, delete and modify the tag, as shown in Figure 39. Figure 39 9.1.3 Quick print This function allows you to print the record quickly without entering each analysis items (As...
Page 71 Figure 40). C lick the button adjust n umber p aper p rinted Preview corresponding item Figure 40...
Page 72 You can select or cancel the items by clicking the selecting box in the front of every print item, adjust the print pages according to your need, and preview the corresponding report by clicking the button in the last line. "Select All / cancel"...
Page 73: System Settings
condition of analyzing HRT. Figure 41 9.1.4 System Settings Hospital name, hospital telephone, hospital fax can be set in "Hospital Information" (As Figure 42). Figure 42...
Page 74 Physician name, physician telephone and section information can be set in "Physician Information" (As Figure 43). Herein, up to 50 sections and 10 physician names can be input and recorded automatically. The physician item in "Patient information" is related with this item, and it will be printed in the diagnosis reports.
Page 75 Enable filter, baseline filter, EMG filter, HR prompt sound, calculate VCG, device type, Bk Net Paln and Lead Standard can be set in “Signals Processing” shown as Figure 44. Figure 44 The interference arisen from AC can be filtered after selecting "AC filter". If "Baseline Filter" and "EMG filter"...
Page 76 regarded as the default selection, but it does not mean that we can’t change the settings during sampling .You can also change them manually before or during sampling (Refer to "8 New Patient Sampling"). In "Analysis Setting" (As Figure 45), you can set the heart rate channel, arrhythmia parameters and the print form of diagnostic conclusions, etc.
Page 77 be modified at any time (refer to "8 New Patient Sampling"). In "Custom Option" (As Figure 46), you can edit custom items and select whether to print. Figure 46 The items corresponding to “New Patient” can be modified by modifying customer item. For example, change the content in "Custom Item 1"...
Page 78 In the "Backup DataBase" (As Figure 47), you can set up auto backup time, resume methods, save path. You can also resume the backup database file to the current file by "Select Film" (As Figure 48). Figure 47...
Page 79 Figure 48...
Page 80 If select "Auto Backup", the system will automatically backup the database according to the backup period. We propose to choose 15-60 days. If the period is too short, the backup files will reach certain amount and take large memory, which will affect the normal operation of the system.
Page 81 Figure 49...
Page 82 In "Interface Setting", if you choose "Show Patient List", the main interface will be shown as Figure 50. Figure 50...
Page 83 In "Interface Setting", if you choose "Show System Icon", the main interface will be shown as Figure 51. Figure 51...
Page 84 If you choose "Use Smooth Algorithm" in "Show Waves", the ECG waves will become smoother. As Figure 52, Figure 53: Figure 52 Use smooth algorithm Figure 53 Not use smooth algorithm “Language” can switch the language between Chinese and English. "Arrangement style" can change the default arrangement style in “12 leads ECG”...
Page 85 Figure 54 You can change the default save path of reports (PDF/JPG/PNG/BMP) by clicking "Save Path". The information about how to generate reports of PDF/JPG/PNG/BMP form, please refer to "9.1.3 Quick print". The software provides two save types in accordance with "Date" and "Case". The "Date"...
Page 86 path naming "0000002". You can choose the print type from two different types of "laser print" and "thermal print". Also, the bold level of waveform and background can be set. Caution: In "Print Setting", "Scale Signal" is valid when the "Arrangement Style" is set to "Average Arrangement"(Refer to "Interface Setting"...
Page 87 Patient information to be checked, files save path and name, create files can be set in “Others Setting” (As Figure 56). Figure 56 In “Others Setting”, “Instead of New Patient” can be input by “ ” to select external procedure. “Use collect select box” can be used after selecting “New Patient Use Out Exe File”, then the dialog box of collection type will appear.
Page 88: Lead Placement
“Files save path and type” is used to set the electronic report. Its path can be changed by “ ” on the right of “Files save path and type”. “Create Files” is used to set created mode and whether to create aEcg files. After selecting “Electronic Re”, electronic report formats(PDF, JPG, BMP or PNG) can be selected.
Page 89 Figure 57...
Page 90: Help
Frank connection is shown as Figure 58. Figure 58 9.1.6 Help Click it to run the help system.
Page 91: Exit
9.1.7 Exit Click it to exit and close the system. 9.2 Analysis 9.2.1 Reanalyse Click this button to enter the "Reanalyse" interface (Wilson and Frank Leads analysis: Figure 59/ Figure 60, Wilson Leads analysis: Figure 61, Frank Leads analysis: Figure 62). Or "Reanalyse" interface will automatically appear after collecting (Wilson and Frank Leads analysis: Figure 61/ Figure 62, Wilson Leads analysis: Figure 61, Frank Leads analysis: Figure 62).
Page 92 Click this button to switch the lead system Figure 59...
Page 93 Figure 60...
Page 94 The button is gray which shows the case is only one kind of lead system Figure 61...
Page 95 Figure 62 The methods to solely analyze Wilson or Frank lead style are similar. When sampling by Wilson and Frank at the same time, you can switch to Wilson lead style by clicking "Set ECG Measurement Point" or switch to Frank lead style by clicking "Set VCG Measurement Point". You can choose the main analysis lead by clicking the "Analysis lead"...
Page 96 You can adjust the beginning and end points of P wave and T wave, the beginning point of Q wave and the end point of S wave by adjusting line P1, P2, Q, S, T1, T2. If the positions of the six points are exact, the analysis result will be more accurate.
Page 97: Ecg
9.2.2 The waveform shown in Figure 63 will be displayed when entering the 12-lead ECG interface. Figure 63...
Page 98 When the mouse moves to the right side of waveform interface, the interface shown in Figure 64 will appear, at this moment, the diagnostic interface remains in unlocked state (i.e., the diagnosis interface will disappear after the mouse moves out of the fixed area). Figure 64...
Page 99 Click the icon in the bottom-right corner of the diagnostic interface to lock the diagnostic interface, so it will no longer restricted by the area where the mouse is located, as shown in Figure 65. Figure 65  Wave Property: 12-lead sync waves are shown in this template. There is an arrowhead on every wave, the red one indicates the wave has been enabled, and the gray indicates the wave hasn’t been enabled.
Page 100 has not been analyzed automatically. Here you should click "Edit" to add it. If the QRS wave is abnormal, for example, APB or VPB, there are red letters to mark its attribute, which are listed as following: "S": APB "V": VPB "L": Long Intermission "O": Interference "P": Pacemaker...
Page 101 As Figure 66: Figure 66  Speed and gain adjustment: adjust gain to display in one page or several pages (As Figure 67). Figure 67...
Page 102 Figure 68  "Previous": Select the previous beat.  "Next": Select the next beat.  "ECG": select wave arrangement mode during wave review, as Figure 69: Figure 69  "Ruler": the cursor will become ruler-like. Click the left key of mouse and drag to draw a blue rectangle, whose length between left and right shows time(ms) interval and length between up and down shows voltage(mv).
Page 103 release the left button.  "Edit"(As Figure 70): edit the attribute of the chosen beat. Here a blue rectangle will appear, in which is the current chosen wave. Press corresponding keys ---"V", "S", "L", "O", "D","P", "N" to modify the property of wave. The meanings of keys are: "S": APB, "V": VPB, "L": Long Intermission, "O": Interference, "P": Pacemaker, "D": Del, "N": Normal.
Page 104  Magnifier: waveform can be magnifier, convenient to check.  "Diagnose" (As Figure 71): Turn to diagnosis interface. At first, it will enter the wave superimposition interface. Figure 71 Main functions for this interface: display superimposition wave, display and modify the position of mark points, display ECG axis graph, calculate and display relative diagnosis data.
Page 105 You can choose to superpose the beats of a single lead or of all leads. The superposition of all leads makes the position of the 6 mark points more accurate. (As Figure 72) Figure 72 6 mark points are as followings: P1: the start position of P wave P2: the end position of P wave Q: the start position of QRS wave...
Page 106 7. QTc interval (ms) 8. P axis (degree) 9. QRS axis (degree) 10. T axis (degree) 11. P wave amplitude (selected lead, mV) 12. Q wave amplitude (selected lead, mV) 13. R wave amplitude (selected lead, mV) 14. S wave amplitude (selected lead, mV) 15.
Page 107 (12-lead, ms), S' duration (12-lead, ms), T duration (positive and negative) (12-lead, ms).  Data Dictionary: The data dictionary of 12-lead interface includes secondary data dictionary and multilevel data dictionary. Use "Data Dictionary" to insert diagnostic terms. You can add your own technical terms or arrange the sequence of terms according to your need. (As Figure 74).
Page 108 Here we introduce how to edit directory. "Add" can add the term you entered in the blank into directory. "Delete" can delete the selected term from the directory. "Move top" can put the selected term to the first line of the directory. By the operation, you can place the common terms on the top of the directory conveniently.
Page 109 Figure 75...
Page 110: Fcg
Print and preview: the functions are same as the "Print" and "Preview" in "Diagnosis", it  can print report with 12-lead ECG. Attention: in this dialog box, there are two print methods (“Horizontal”, “Vertical”). See figure 9.2.3 FCG is to distill some reference information hidden from 12-lead ECG waves. FCG is used to diagnose the patient with miocardial infarction history by analyzing the abnormal Q waves and locating comparing them according to the theory that Q wave is no more than 1/4 of the main wave and Q duration is less 0.04s.
Page 111 Figure 76 The upper part of interface is the analysis for the front side of the heart, where the leads include: I, -aVR, II, aVF, III, -aVL, -I, aVR, -II, -aVF, -III and aVL. Here the negative sign before lead shows the direction of that lead is reverse with the lead without negative sign.
Page 112 according to your diagnosis, which is shown in the diagnosis report. Power Spectrum Analysis, as Figure 77. Through comparing the peaks, the power spectrum of 12 leads can help doctors to diagnose. You can click the buttons to check limb lead power spectrum or precordial lead power spectrum. Click "Print Preview"...
Page 113 On "Limb Lead Power" and "Precordial Lead Power" analysis graph, there are five triangular arrowheads with different color which point to the harmonic peaks of five conjoint power, you can use the mouse to move the first red arrowhead to change the five arrowheads indicated the location of the harmonic peaks of power spectrum.
Page 114 Click the yellow and the purple diamonds to choose the comparing leads Figure 78 In "Two Lead Compare", we offer "Frequency Spectrum Power" curve, "Phase Shift(PHS-)" curve, "HXY" curve, "Coherence(CHR-)" curve, "VXY" curve, "Impulse Response" curve for different limbs lead and precordial lead contrast. By clicking on the yellow and purple square at the right of the "Frequency Spectrum Power"...
Page 115: Hfcg
9.2.4 HFCG HFCG is to magnify QRS wave group, then to find notching, slurring and beading in the group. It includes: data statistics table, holistic wave selection, beat selection in turn and beat enlarged drawing display, etc. As Figure 79: Figure 79...
Page 116 Figure 80  The statistic table on the left-bottom corner of the screen displays the number of notching, slurring and beading in all 12 leads. Click the right key of the mouse on the waves, the shortcut menu will appear, then click corresponding items to modify wave attribute (As Figure 80).
Page 117 Figure 81  In default, enlarged wave of six-lead single beat displays on the screen so that you can observe whether the enlarged beats have notching, slurring and beading. You can click "Leads combination style" to select which leads to be displayed in six panes. In order to observe conveniently, a list box is given below the HR trend graph for gain adjustment, where you can select the enlargement factor for single beat.
Page 118: Qtd
9.2.5 QTD(QT dispersion, QTd) is the difference between the max and the min value of the QT interval in 12-lead ECG, which reflects the inhomogeneity of ventricular myocardium repolarization mainly, and which stands for difference of refractory period in ventricular myocardium (As Figure 82).
Page 119: Hrv
sequential cardiac cycle and calculating their average, and display the result at the list at the bottom right corner. 5 continuous heartbeats measured are marked with red arrowhead above the waves. Click on the wave of the lead to be adjusted, and the wave will turn green, it shows this heartbeat wave has been selected.
Page 120 Figure 83 Attention: HRV makes sense for the case more than 5min. HRV graphs include RR interval histogram, RR interval dispersion histogram, RR interval poincare, RR interval dispersion poincare, RR interval trend graph and HR trend graph.
Page 121 Figure 84 RR Interval Histogram is a graphic mode which reflects the distribution of the RR interval  at a period of time (such as 1 hour, 12 hours, 24 hours). The horizontal axis expresses the R-R interval, and the vertical axis expresses the corresponding number of heartbeats. The shape of RR Interval Histogram intuitively reflects circumstance of HRV.
Page 122 peek value. But most of persons with double peaks even multi-peak are normal, which mostly appears in the normal persons with bigger HRV.  The statistics of RR interval dispersion histogram is on the basis of the margin of two neighboring RR Interval from sinus node (unit: ms).
Page 123: Stle
9.2.7 STLE Myocardial ischemia will appear when coronary artery can not meet the energy need of the cardiac muscle. It can be divided into two types, myocardial demand oxygen increase and oxygen supply Reduce. In fact, myocardial ischemia is the result of the two types. The main interface is as following (As Figure 85).
Page 124 marks with red (ST-segment is too low), green (ST-segment is in the normal range) and blue (ST-segment is high). In this interface, you can choose "Setting Compare" or "Delete Compare" by clicking the right button of the mouse at current histogram (the location of vertical line) (As Figure 86).
Page 125 The left interface of Myocardial ischemia shows the QRS wave corresponding to the current index, it shows the four leads (I/II/III/aVR) in default. You can also select the lead to be checked by the right key (As Figure 87). Figure 87...
Page 126: Hrt
9.2.8 HRT is a kind of bidirectional physiological response of sinus node to ventricular premature contraction. It shows the short-time heart rate acceleration and following heart rate deceleration. HRT can be expressed by two parameters(TO and TS). Premature ventricular beat can lead to the blood pressure turbulence of artery (low amplitude premature beat and the following normal heartbeat of high amplitude ).
Page 127 The 12 leads ECG is shown on the top, which are displayed in four pages in default. You can click to choose QRS wave to be checked. You can also superpose all possible HRT, then the superimposition wave will display at the bottom of the interface, shown as Figure 89. Figure 89 The vertical lines on upper and lower location of dots, express the largest or the smallest RR interval for the same point on the HRT wave at the different time.
Page 128 Figure 90 When the results arrives "Risk index", the corresponding data would turn red to alert users. If you don’t check the whole case report, "Normal beats" will show "No judge". When the records did not find HRT, the hint "None HTR found!" will be shown at the bottom of...
Page 129: Pmecg
the interface, at the same time the top function buttons are not available (As Figure 91): Figure 91 9.2.9 PMECG PMECG is a kind of surface electrocardiogram after implanting artificial heart pacemaker. As the pacing region and the pacing type are different, the recording ECG is different. PMECG includes P-QRS-T-wave group and pacing signal.
Page 130 amplitude has the larger differences in various leads. The module of the PMECG is shown as Figure 92: Figure 92 It shows the basic waves of PMECG at upper half of interface. S signal can be found in the waves. The bottom half part of the interface lists the pacing signal’s proportion in the form of list table.
Page 131 VFB:ventricular fusion beats VOS:ventricular over sense VP:ventricular full pacing VUS:ventricular under sense AP:atrial pacing wave AOS:atrial over sense Pacing module provides the function of parameter settings (As Figure 93). Figure 93 You can set the specific time of implanting pacemaker, pacemaker models, pacing type, timing period of atrial and ventricular, AV delay, signal width, etc.
Page 132: Saecg
9.2.10 SAECG VLP is a sharp wave that appears at the end of QRS waves and ST Segment, which has the characteristic of high frequency and low amplitude with an equipotential activity sometimes. Most of circumstance, VLP almost appears on patient with miocardial infarction. The interface of SAECG is shown as Figure 94: Figure 94 R-R interval graph is plotted at the upper interface.
Page 133 by clicking the left key of mouse, or clicking directly on the waves to select it, which can select to accept or reject heartbeat to analyze. In this figure, the white wave denotes the wave is accepted, the gray wave denotes the wave is rejected.
Page 134 Frequency Domain Analysis is shown as Figure 96. Y ou can select the vertical line using the left button, and a djust the position of the line by using the left and right key o n the keyboard. Figure 96 You can select the vertical line by using the left button and adjust the position of the line by using the left and right key on the keyboard.
Page 135 graph" will also be changed. Time Domain Analysis is shown as Figure 97: Figure 97 In this interface, you can also adjust the vertical line of "No filter wave". You can also use the same method to adjust characteristic point position of the waves after filtering. In "Time Domain Analysis"...
Page 136: Vcg
3. You can move ORS start point of filtered wave by pressing the left or right key. 4. You can move ORS end point of filtered wave by pressing the left or right key. 9.2.11 VCG is ECG in two directions. There are three VCG curves, including Frontal plane X-Y, Horizontal plane X-Z and Right Sagittal plane Z-Y.
Page 137 Double-click the figure show area of the Frontal plane (the Right Sagittal plane or Horizontal plane), you can enter the amplified Frontal plane (the Right Sagittal plane or Horizontal plane) (As Figure 99). You can select and set the format of the report to be printed at lower right area of the interface. The "Report of Print vector total"...
Page 138 Rotation (P) - rotation direction of P loop Rotation (T) - rotation direction of T loop 0.01 (Am) - amplitude at 0.01 second from beginning of QRS loop (mV) 0.01 (Angle) - angle at 0.01 second from beginning of QRS loop (degree) 0.02 (Am) - amplitude at 0.02 second from beginning of QRS loop (mV) 0.02 (Angle) - angle at 0.02 second from beginning of QRS loop (degree) 0.03 (Am) - amplitude at 0.03 second from beginning of QRS loop (mV)
Page 139 Figure 99 After setting the gain, you can replay the process of the curve forming. P loop is yellow, QRS loop is green and T loop is red. In this interface, click the blue pane at the top and right of the interface and drag the mouse to adjust the start and end point of P, QRS or T waves, and the amplified graph will be plotted again according to the adjusted position.
Page 140: Tvcg
9.2.12 TVCG TVCG is a kind of VCG considering the time factor, which is also called the continuous ECG vector. Same as the ambulatory electrocardiography (AECG), it can record and observe every cardiac cycle. This module shows not only the complete TVCG wave, but also waves of X, Y, Z three leads.
Page 141 You can use the toolbar on the left of the screen to change the speed and the gain. Press the little triangle above the wave, or press "Previews", "Next" button to set the current wave. The vector loop of the current wave is shown on the right of the screen. Measurement button.
Page 142 Figure 101...
Page 143: Chapter 10 Maintenance
Chapter 10 Maintenance 10.1 Battery maintenance  The device installed full sealed and maintenance-free rechargeable lithium batteries inside, which adopts perfect automatic charging/discharging monitoring system. It will charge automatically if connected with USB cable. Battery status displayed on the top right corner of the sampling interface after startup.
Page 144: Maintenance After Use
 Do not contact the positive and negative terminal by the lead, to avoid fire.  Do not use the battery in environment of fire source nearby or temperature over 60℃, and avoid heating it or throwing it into fire, water or splashing by water. ...
Page 145: Inspection And Maintenance Of Lead Cables And Electrodes
10.3 Inspection and Maintenance of lead cables and electrodes 10.3.1 The conduction of lead cables can be detected by using a multimeter through checking each lead cable. The resistance of each cable from the electrode plug to the semi-circular interface of lead cable connector should be less than 10 Ω. The integrity of the lead cables must be checked regularly, and any damage to them will cause a false waveform on the ECG for corresponding lead or all leads.
Page 146 to the qualified service station or maintenance personnel recognized by our company, the relevant maintenance personnel is responsible for the maintenance of devices.
Page 147: Chapter 11 Troubleshooting
Chapter 11 Troubleshooting 11.1 AC Interference Whether or not the device is grounded reliably? Whether or not the electrodes and skin are daubed enough conductive gel? Whether or not the metal bed is grounded reliably? Whether or not the patient has touched the wall or metal parts of the bed? Whether or not the patient has touched other people? Whether or not there is high-power electric equipment working nearby? Such as X-ray machine or ultrasonic device, etc.
Page 148: Baseline Drift
Whether or not the patient is nervous? Whether or not the bed space is narrow? 11.3 Baseline Drift Whether or not the electrode placement is stable? Whether or not the electrodes or lead cables are connected reliably? Whether or not the electrodes and patient skin are cleaned and are daubed enough conductive gel? Whether or not it is caused by patient's movement and breath? Whether or not the electrodes or leads are in bad connection?
Page 149: Sampling Failure
11.4 Sampling Failure The dialog box "Don't find relevant USB!" as following figure appears. Check whether the connection between the device and the recorder(namely the Bluetooth equipment) is correct and reliable. Make sure there is no obstructions between the recorder and the Bluetooth equipment.
Page 150 "Read Data Error" will appear, shown as below figure. Check whether there are some reasons caused the abnormal connection of Bluetooth during sampling.
Page 151: Troubleshooting
11.5 Troubleshooting Phenomenon Reason Solution Check lead cable. Lead cable is not solid enough Do a good job in dealing with to connect the two ends. patients. Check electrical equipment around the Interference from AC. equipment. Patient is too tension, not Start sampling again after patient is quiet.
Page 152 Improve the environment. If it is the steel bed, it should be replaced. AC interference is large. Sampling equipment is too close to other high-power equipment or power Baseline burr supply. Let patients relax. EMG interfere is large. Keep the indoor temperature above 16 ℃.
Page 153 Waveform of some lead is Lead cable is broken. Replace the lead cable. small in amplitude Software was not turned off normally after last use. Please connect recorder and PC again PC has recovered from sleep and restart the software. state, in sleep state, the power Equipment will be cut off.
Page 154: Chapter 12 Packing List
Chapter 12 Packing List 12.1 Accompanying accessories When device leaves factory, a complete packaging shall contain the followings: Items Qty. ECG sampling facility 1set ECG workstation installation CD(including User Manual). 1pcs ECG lead cable 1set ECG lead extension cable (to electrode) 2pcs Data line 1pcs...
Page 155: Attention
12.2 Attention 12.2.1 Please follow the instructions when opening the package. 12.2.2 After unpacking, please check the accessories and accompanying documentation in accordance with the packing list, then start checking the device. 12.2.3 If the packing content does not meet the requirement or the device does not work properly, please contact with our company immediately.
Page 156: Chapter 13
Chapter 13 Principle and Clinical Application The matched ECG sampling clip gathers the change of heart’s integrated potential, which is periodically changed with the cardiac cycle, from the skin surface, then form the dynamic curves, namely ECG. After that analyze based on it. Steps are as following: The 8-lead ECG signal is switched to numeric signal through A/D conversion, and it stores data and displays waveform via magnifying and filtering.
Page 157 Digitalis toxis, crucial electrolyte disturbance and mitral valve prolapse syndrome etc.  VT RFCA post MI, to determine whether RFCA treatment is doable.  Niveau diagnosis of dominant bypass ECG, to raise the success rate of catheter-induced ablation.  Differential diagnosis of broad QRS wave groups. ...
Page 158 Appendix I - Explanation of symbols of device: Follow instructions for use Keep in a cool, dry place Authorized representative Defibrillation-proof type is CF in the European community applied part Serial number USB interface WEEE disposal Keep away from sunlight Medical Device complies with Product code Directive 93/42/EEC...
Page 159 Appendix Ⅱ Guidance and manufacturer’s declaration – electromagnetic emissions- for all EQUIPMENT and SYSTEMS Guidance and manufacturer’s declaration – electromagnetic emission The CONTEC8000G is intended for use in the electromagnetic environment specified below. The customer of the user of the CONTEC8000G should assure that it is used in such and environment.
Page 160 The CONTEC8000G is suitable for use in all emission establishments other than domestic, and may be used CISPR domestic establishments those directly Class A connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.
Page 161 Guidance and manufacturer’s declaration – electromagnetic immunity – for all EQUIPMENT and SYSTEMS Guidance and manufacturer’s declaration – electromagnetic immunity The CONTEC8000G is intended for use in the electromagnetic environment specified below. The customer or the user of CONTEC8000G should assure that it is used in such an environment.
Page 162 Power 3A/m 3A/m Mains power quality should be that frequency of a typical commercial or hospital (50/60Hz) environment. magnetic field IEC61000 -4-8 NOTE: U is the a.c. mains voltage prior to application of the test level.
Page 163 Guidance and manufacturer’s declaration – electromagnetic immunity – for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING Guidance and manufacturer’s declaration – electromagnetic immunity The CONTEC8000G is intended for use in the electromagnetic environment specified below. The customer or the user of CONTEC8000G should assure that it is used in such an environment.
Page 164 the frequency of the transmitter. Recommended separation distance Cond 3 Vrms   ucted RF Vrms    IEC6   1000-4-6 kHz to 80 3 V/m    80 MHz to 800     Radia ted RF 3 V/m IEC6...
Page 165 manufacturer and d is the recommended separation distance in metres (m). Field strengths from fixed transmitters, determined electromagnetic site survey, should be less than the compliance level in each frequency range. Interference occur vicinity of equipment marked with the following symbol: NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
Page 166 (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the CONTEC8000G is used exceeds the applicable RF compliance level above, the CONTEC8000G should be observed to verify normal operation.
Page 167 Recommended separation distances between portable and mobile RF communications equipment and the EQUIPMENT or SYSTEM – for EQUIPMENT or SYSTEM that are not LIFE-SUPPORTING Recommended separation distances between portable and mobile RF communications equipment and the CONTEC8000G The CONTEC8000G is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
Page 168 Separation distance according to frequency of Rated maximum transmitter output power of transmitter 150 kHz to 80 MHz to 800 MHz to 80 MHz 800 MHz 2.5 GHz             ...
Page 169 For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Page 170 Disposal: The product must not be disposed of along with other domestic waste. The users must dispose of this equipment by bringing it to a specific recycling point for electric and electronic equipment GIMA WARRANTY TERMS The Gima 12-month standard B2B warranty applies...

This manual is also suitable for:

Contec8000g 33316

Gima CONTEC 8000 User Manual

Chapter 1 General Information

Chapter 2 Safety Precautions

Chapter 3 Warranty Provisions

Chapter 4 Device Operation Precautions

Chapter 5 Install and Start

Chapter 6 Electrode Installation

Chapter 7 Software

Chapter 8 New Patient Sampling

Chapter 9 Functions Explanation

Chapter 10 Maintenance

Chapter 11 Troubleshooting

Chapter 12 Packing List

Chapter 13

Quick Links

Troubleshooting

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for Gima CONTEC 8000

This manual is also suitable for:

Table of Contents