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Medoc PATHWAY Technical Reference Manual

Pain & sensory evaluation system
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Pain & Sensory Evaluation
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Summary of Contents for Medoc PATHWAY

  • Page 1 PATHWAY Pain & Sensory Evaluation System Technical Reference Manual...
  • Page 2 Pathway Technical Reference Manual This User Manual contains proprietary information of Medoc Ltd. and may not be reproduced in any form without prior written consent from Medoc Ltd. DC 00054 PATHWAY Technical Reference Manual 26 Ed., October 2018 Medoc Ltd.

  • Page 3: Table Of Contents

    1.8 1.8 Recommended Separation Distance between Portable and Mobile RF Communications Equipment and PATHWAY ............24 1.9 Technical Data ....................25 1.9.1 PATHWAY – ATS model only ............... 25 1.9.2 PATHWAY – CHEPS model only ..............25 1.9.3 PATHWAY ATS and CHEPS models ............... 26 Overview ..................
  • Page 4 3.1 Main Power and Coolant Temperature Control panel ........38 3.2 Trolley Back Panel ................... 39 3.3 PATHWAY Electronic Box Front Panel .............. 40 3.4 PATHWAY Electrical Box Back Panel (Internal) ..........42 Setup and Installation ..............43 4.1 Computer Requirements .................. 43 4.2 Installation USB Content .................
  • Page 5 Pathway Technical Reference Manual 7.7 Program Details ....................71 7.7.1 Ramp and Hold ..................71 7.7.2 Pulses ...................... 74 7.7.3 Search ..................... 76 7.7.4 Limits ...................... 77 7.7.5 Levels ...................... 78 7.7.6 Thermal Sensory Limen (TSL) ..............81 7.7.7 VAS Search ....................82 7.7.8...
  • Page 6 Pathway Technical Reference Manual 10. System Configuration ............... 104 10.1 Software Settings ..................104 10.1.1 Communication ..................104 10.1.2 Report Options ..................105 10.1.3 Results Fields ..................109 10.1.4 Patient Fields ................... 109 10.1.5 Button Configuration ................111 10.1.6 Users ...................... 111 10.2 Hardware Settings ..................
  • Page 7 The External Control Workflow ..............147 14.5.6 Safe Mode ....................148 15. Appendix D – fMRI Conditional PATHWAY ........ 149 15.1 PATHWAY system configuration in fMRI mode: ........... 149 15.2 Installation – CHEPS MR Filter ..............151 16. Appendix E – FTP Support ............154 16.1 Export Configuration ...................
  • Page 8 Pathway Technical Reference Manual 22.5 Cooling Unit Maintenance ................174 22.6 Ground Conductivity Test (for fMRI system only) ........174 22.7 Periodical Thermode Maintenance ............... 174 23. Appendix K – Cleaning and Disinfecting ........175 24. Appendix L – List of Accompanying Documents ......176 25.
  • Page 9 Figure 9: Main Power and Coolant Temperature Control panel ........... 38 Figure 10: System Back Panel ..................39 Figure 11: PATHWAY Electronic Box Front Panel .............. 40 Figure 12: Electrical Box Back Panel ................42 Figure 13: Pathway Connection Diagram ................ 45 Figure 14: Trolley Electrical Connectors ................
  • Page 10 Pathway Technical Reference Manual Figure 39: Program Menu – Search ................76 Figure 40: Program Menu – Limits ................. 77 Figure 41: Program Menu – Levels................. 79 Figure 42: Program Menu – TSL ..................81 Figure 43: VAS Search Program Editor ................82 Figure 44: Chain Program Editor ...................
  • Page 11 Pathway Technical Reference Manual Figure 80: Hardware settings – Safety tab ..............119 Figure 81: Hardware settings – Thermode tab ..............119 Figure 82: Hardware Settings - CoVas calibration ............120 Figure 83: Test Configuration Settings ................121 Figure 84: Event Marker ....................124 Figure 85: Event Sound Configuration ................
  • Page 12 Pathway Technical Reference Manual Figure 120: Adjusting hose into tap ................162 Figure 121: Holding the funnel up ................162 Figure 122: Open filling tap ..................163 Figure 123: Open funnel tap ..................163 Figure 124: Filling Coolant through funnel ..............163 Figure 125: Coolant level gage ..................
  • Page 13 Table 4: PATHWAY ATS and CHEPS Specifications ............26 Table 5: Terminology ....................30 Table 6: PATHWAY Electronic Box Front Panel receptacles ..........40 Table 7: PATHWAY Electrical Box Back Panel receptacles ..........42 Table 8: Menu Bar options .................... 54 Table 9: Status line parameters ..................
  • Page 14 Pathway Technical Reference Manual Table 39: Service& Maintenance Accessories ..............167 Table 40: MRI Conditional Accessories ................169 Table 41: Summarizing Maintenance Table ..............172 Table 42: Frequent Warning Messages ................179 Table 43: Frequent Error Message ................181 Table 44: Errors during calibration ................188 Table 45: Faulty System Responses ................

  • Page 15: Safety Guidelines And Regulations

    This manual is written for trained users of Medoc Products. The user includes the body with authority over the equipment and those persons who actually handle the equipment.

  • Page 16: Intended Use

    Pathway Technical Reference Manual 1.2 Intended Use The use of the Pathway system should be as intended by Medoc Ltd. and as specified in the user manual. The PATHWAY is a pain management and pain research system intended to be used for the quantitative assessment of small nerve fiber dysfunctions.

  • Page 17: Cautions

     To reduce the risk of injury, attach the Thermode to the subject only prior to running a test while MEDOC Main Station is in Test screen. Remove the Thermode from the subject skin before leaving the Test Screen. ...

  • Page 18: Equipment Classification

    PATHWAY system.  Use of a stimulator, which was based on similar technology as the PATHWAY device, in evaluating the functionality of human pain reception and transmission of sensory pathways at 6°C has been reported to have comparable outcomes in assessment of pain reception and sensory pathways to 0°C.

  • Page 19: Thermode Detection

    The system automatically detects that a Thermode is missing, and disables it in order to protect both system and user. 1.6 Equipment Labels, Symbols, Warning Statements and Abbreviations Figure 2: PATHWAY Label 230V Figure 1: PATHWAY Label 110V Table 1: Equipment Labels Equipment Label...
  • Page 20 Pathway Technical Reference Manual Disposal according to electronic scrap ordinance Manual edition refers to current version of manufactured system Medoc reserves the right to change specifications without prior notice, in line with the company policy of constant product improvement Proprietary...

  • Page 21: Electromagnetic Immunity

    Pathway Technical Reference Manual 1.7 Electromagnetic Immunity The PATHWAY is intended for use in the electromagnetic environment specified below. The customer or the user of the PATHWAY should assure that it is used in such an environment. Declaration – electromagnetic immunity IMMUNITY test...
  • Page 22 Compliance Electromagnetic environment – guidance RF emissions CISPR Group1 Class The Pathway uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment. Harmonic emissions...

  • Page 23: Essential Performance

    RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the PATHWAY is used exceeds the applicable RF compliance level above, the PATHWAY should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the PATHWAY.

  • Page 24: Recommended Separation Distance Between Portable And Mobile Rf Communications Equipment And Pathway

    1.8 Recommended Separation Distance between Portable and Mobile RF Communications Equipment and PATHWAY The PATHWAY is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the PATHWAY can help prevent...

  • Page 25: Technical Data

    Some of the specifications require specific license / hardware which are not available in the standard configuration. The table below describes the technical specifications and capabilities of the Pathway system. When stated, the term 'Optional' indicates that this specific feature requires an additional license and/or hardware component.

  • Page 26: Pathway Ats And Cheps Models

    Pathway Technical Reference Manual 1.8.3 PATHWAY ATS and CHEPS models Table 4: PATHWAY ATS and CHEPS Specifications Parameter Description Stimuli protocols Pulses Ramp and Hold Search Limits Levels Chain Stimulus duration at 0 – 600 Sec (limited by safety cut-off. See below)
  • Page 27 Pathway Technical Reference Manual Parameter Description Sound option (Computer Can indicate various events during stimuli (depending on speakers are required – not protocol used) supplied) CoVAS (Optional) Computerized Visual Analog Scale (CoVAS) enables real- time recording of the subject’s pain level, according to the standard VAS procedure.
  • Page 28 Pathway Technical Reference Manual Parameter Description Safety limitations on (1) 56 °C during 0 sec. Temperature & Duration (2) 55 °C during 0.05 sec. (3) 52 °C during 0.4 sec. (4) 51 °C during 1 sec. (5) 50 °C during 5 sec.

  • Page 29: Overview

    PATHWAY system also allows synchronization with external devices such as fMRI and EEG systems. The PATHWAY system uses two types of active devices named Thermodes: a CHEPS (Contact Heat Evoked Potential) Thermode and an ATS (Advanced Thermal Stimulator) Thermode.

  • Page 30: Switching Thermodes

    Pathway Technical Reference Manual  The square activation area of the contact Thermode is 900 mm (30 mm side).  Stimulation temperature range is 0C to 55C. Refer to section ‎ 0, page to view the full range of Thermode types and sizes.

  • Page 31: System Status

     Online: This is the PATHWAY system full operating mode and indicates full communication between MEDOC Main Station and Pathway System. While on-line the PATHWAY system can operate in several different states as listed in the following section.  Simulator: The system is operating in demo mode. There is no communication between the software and the PATHWAY system.

  • Page 32: Application Methods

    Pathway Technical Reference Manual 2.8 Application Methods The Method defines the type of protocol used for the test. The following methods are supported (both in the CHEPS and ATS models):  Ramp & Hold: The temperature of the stimulus is maintained for a predetermined duration.

  • Page 33: Figure 3: Ramp &Hold Sequence - Return To Baseline

    Pathway Technical Reference Manual Onset-to-Onset Time End-to-Onset Time Destination End of Temperature Duration End Test Destination Onset temperature Baseline Temperature Start Test Time Time Duration Before Time Sequence Trial 1 Trial 2 Sequence 1 Figure 3: Ramp &Hold Sequence – Return to Baseline Each sequence consists of a number of similar trials (one trial is also allowed).

  • Page 34: Pulses Method

    Pathway Technical Reference Manual Destination Temperature 2 Destination Onset Temperature 1 Sequence 1 Time Sequence 2 Figure 4: Ramp & Hold Sequence – Return to Next Destination 2.8.2 Pulses Method When using this method, the temperature rises or falls at a very fast rate, and then returns to a predefined starting point of a new pulse.

  • Page 35: Search Method

    Pathway Technical Reference Manual 1. The starting point for each trial is called the Onset. The temperature at this point is the Baseline Temperature defined for the entire sequence. 2. From this point on the Baseline Temperature is maintained until the pulse is created. The temperature at the peak of a pulse is the High Destination Temperature.

  • Page 36: Limits Method

    Pathway Technical Reference Manual The test subject controls the temperature changes during the time defined for this sequence, after which the temperature returns to the Baseline Temperature. ‎ See section .7.3, page 76, for full description of program details and parameters.

  • Page 37: Chain Method

    Pathway Technical Reference Manual Figure 7: VAS Search – Manual Mode In this window the user selects if to increase or decrease the destination temperature of the next trial and by how much (determined by the 'Step Size' value). There is also an option to resume the program if the operator decides that the target pain rating was reached.

  • Page 38: System Components

    The system power and coolant temperature control panel contains the following controls:  Coolant temperature control panel – electronic thermostat for external cooling unit. For additional instructions, refer to accompanying documentation.  Main Power switch – PATHWAY system main power switch. Proprietary 38 of 190...

  • Page 39: Trolley Back Panel

    Pathway Technical Reference Manual 3.2 Trolley Back Panel Electrical box Panel and Communication and Service Fuses Maintenance Access Ports Door Door Power Inlet and Outlet Cooling Unit Maintenance Door Figure 10: System Back Panel The back panel offers of the following access: ...

  • Page 40: Pathway Electronic Box Front Panel

    Pathway Technical Reference Manual 3.3 PATHWAY Electronic Box Front Panel Figure 11: PATHWAY Electronic Box Front Panel PATHWAY Electrical box front panel contains the following receptacles and controls: Table 6: PATHWAY Electronic Box Front Panel receptacles Description Mate with CHEPS Thermode Main receptacle...
  • Page 41 Pressing this button during a test in the event of an emergency enables the operator to immediately abort the test. After releasing the pressed Emergency button, the PATHWAY system will run a self test. A self test is run automatically after any kind of safety violation ...

  • Page 42: Pathway Electrical Box Back Panel (Internal)

    Figure 12: Electrical Box Back Panel The Electronic Box back panel is accessible from the maintenance door in the back of the PATHWAY trolley. It contains the following receptacles and controls: Table 7: PATHWAY Electrical Box Back Panel receptacles Description...

  • Page 43: Setup And Installation

    Pathway Technical Reference Manual Setup and Installation The PATHWAY system installation is designed to be simple and fast. Follow the instructions given below for selecting a location, installing and initial setup of the PATHWAY system. Proper installation and operation of the equipment is important for ensuring the safety of the tested subjects.

  • Page 44: Installation Usb Content

    An appropriate location for the PATHWAY system should meet the following criteria: 1. The room temperature should be kept between 18°C and 24°C. 2. The PATHWAY system should not be placed in a location, which is exposed to direct sunlight, constant vibrations, or close to heaters or air conditioners.

  • Page 45: Figure 13: Pathway Connection Diagram

    Laptop and printer are not supplied by Medoc. The computer used should be dedicated only to PATHWAY system. Medoc takes no responsibility for any conflicts which may occur with other programs installed on the same computer. The total power consumption of the laptop and printer connected to the power inlet of the trolley must not exceed 330 W.

  • Page 46: Software Installation

    Do not connect any equipment to a PATHWAY system that has not been specifically authorized and approved by Medoc. 4.7 Software Installation The installation procedure of MEDOC Main Station software can only be performed by a user with windows system administrator rights. Without appropriate access rights, the installation procedure may fail.

  • Page 47: Unit Protection

    5. Select the file location where Medoc Main Station should be installed. You can use the location recommended by the installation. Click Next to continue. 6. Select the location of the Medoc Main Station shortcuts in the start menu. You can use the location recommended by the installation. Click Next to continue.

  • Page 48: Powering Up The Pathway System

    Communication port Figure 15: PATHWAY cart – back doors Figure 16: Communication port - COM 1. Power up the PATHWAY system by using the main switch on the front of the PATHWAY trolley. See Figure 9, page 38. 2. Let the system run for about 10 minutes, before starting Medoc Main Station software.

  • Page 49: Product Activation

    Product registration and software activation is simple and fast and it will enable you to maintain full use of Medoc Main Station software as well as:  Warranty on your newly purchased Medoc systems ...

  • Page 50: Operation

    Main Switch. Failure to follow this instruction will result in damage to the External Cooling Unit. 1. Turn ON the PATHWAY unit, by using the main power switch located in the trolley front panel. See Figure 9, page 38.

  • Page 51: Figure 18: Home Screen

    Pathway Technical Reference Manual Figure 18: Home Screen 5. To select PATHWAY, click on the PATHWAY image. 6. When the login screen is displayed, enter your user name and password and select "PATHWAY" in the "connect to" field. Initial login Username and Password are both admin.

  • Page 52: Figure 21: Self-Test Prompt

    9. The system will perform a complete Self-Test of all enabled Thermodes according to your system settings. 10. After the system Self-Test has completed successfully, the system state will change to REST MODE. Figure 22: PATHWAY in Rest Mode Proprietary 52 of 190...

  • Page 53: Basic Operation

    Current Thermode Information – Display of enabled Thermodes  Data Display Area – View list of patients, programs or body sites  Status Line – Continues real-time display of PATHWAY status and Thermode temperature. The components are detailed in the following sections. Proprietary...

  • Page 54: Menu Bar

    File Test Results to *.ats file format. The *.ats file format is encoded and can be read only by MEDOC software, enabling simple backup, export and import options while maintaining patient confidentiality. For detailed export and import instructions see relevant sections in Patient, Program, and Results Management chapters.

  • Page 55: Toolbar

    The Status bar displays important information about the status of the connected device. If the status line is empty, MEDOC Main Station is not connected to any device. When connected to the PATHWAY system, the status line displays the following information as described in...

  • Page 56: Table 9: Status Line Parameters

    Pathway Technical Reference Manual Table 9: Status line parameters Information Description The device currently in use and connected to Medoc Main Station Device The current status of the system, either Demo or On-Line. Status Communication status between the system and the laptop. A green indicator is displayed for ON and a red indicator for OFF.

  • Page 57: Test Procedure And Management

    Pathway Technical Reference Manual Test Procedure and Management Starting a test procedure is only possible from the Test Navigator screen Test tab highlighted Test Navigator Figure 24: Test Management Main Screen The stimulation procedure (test) consists of the following main steps: ...

  • Page 58: Selecting A Patient

    Pathway Technical Reference Manual 6.1 Selecting a Patient 1. Click the Select Patient button on the Test Navigator 2. Use the Search Row (see section ‎ 5 .3.3 above) to filter and sort list in order to find the relevant patient entry.

  • Page 59: Selecting A Program

    Pathway Technical Reference Manual 6.2 Selecting a Program 1. Click on the Select Program button from the Test Navigator 2. Use the Search Row (see section ‎ 5 .3.3 above) to filter and sort list in order to find the relevant program entry.

  • Page 60: Selecting A Body Site

    Pathway Technical Reference Manual 6. To hide the details, click on the Hide Details button to view the program list only. 7. Click on the Clear button to clear current selection if required. 8. Proceed to the Selecting Body Site section if you want to select a site for the specific test, or click on the Go to Test button in order to run the test without a specific body site selection.

  • Page 61: Running The Test

    Pathway Technical Reference Manual Figure 28: Select Body Site – Specific site selection 3. Use the Zoom In/Out controls for a more precise selection 4. Use the Flip Image control to switch between Anterior / Posterior view 5. Complete the site selection by selecting one of the Specific Sites. The selected site will be displayed in the current test details in the left side bar.

  • Page 62: Figure 29: Pre-Test Screen

    Pathway Technical Reference Manual Figure 29: Pre-Test Screen 2. Click on the Start Pre-test button The system performs a short pre-test, and stabilizes on the Baseline Temperature. 3. When the pre-test is complete, a message will be displayed on the screen.

  • Page 63: Test And Post-Test Options

    Pathway Technical Reference Manual 6.4.1 Test and Post-Test Options Table 10: Test Run options Automatic zoom along the temperature axis. The temperature axis scale expands according to maximum temperature currently displayed on the screen. To reset the automatic zoom click the button again.

  • Page 64: Temperature Graph Display

    Pathway Technical Reference Manual Do NOT immerse the Thermode in any kind of liquid. 6.4.2 Temperature Graph Display During the test, the test graph is generated and displayed on the screen. Following is an example: Statistics Legend Sequence and Trial Data...

  • Page 65: Test Run Keyboard Shortcuts (Hot Keys)

    Pathway Technical Reference Manual 6.4.3 Test Run Keyboard Shortcuts (Hot Keys) Keyboard shortcuts (hot keys) are available for several test functions enabling control of the test from the keyboard. Table 11 below describes the available options. Table 11: Hot Keys...

  • Page 66: Program Management

    Pathway Technical Reference Manual Program Management This chapter explains how to create and edit stimulation programs. The specific program parameters for each method will be described in the sections below. 7.1 Program List The Program screen displays the list of available programs.

  • Page 67: Creating A New Program

    Pathway Technical Reference Manual Figure 32: Program Management – Program Preview 6. The following viewing options are available from Program Details view: Display program details. Display program graph preview. Available on selected methods. View instructions for the selected test. View recent program modification dates.

  • Page 68: Remove A Program

    Can operate with one of the following methods: Ramp & Hold, Pulses, Search, and Limits. For a chain program composed of one or more PATHWAY programs Mixed (Chain) 3. From the Method drop-down list, select the required stimulation method (Ramp & Hold, Pulses, Search, Limits, Levels or TSL).

  • Page 69: Program Editor

    Pathway Technical Reference Manual 7.6 Program Editor When creating or editing a program, the Program Editor screen opens and enables you to modify program parameters Figure 34: Program Editor Screen The top part of the program editor displays global details which are available for all methods.

  • Page 70: Next Sequence Definition

    Pathway Technical Reference Manual View program revision history by version date and username. ‎ Edit text and audio instructions. Refer to section 7 .10, page 88 Exit Program Editor screen Copy the selected sequence Paste the copied sequence Insert a new sequence at the end of the test...

  • Page 71: Program Details

    Pathway Technical Reference Manual Manually define the next sequence: If this option is selected, the operator will receive the following dialog window at the end of the sequence, allowing him to specify the next sequence he would like to perform: Figure 36: Manual Next Sequence Definition Note: this option is available if the program contains more than 2 sequences;...

  • Page 72: Figure 37: Program Menu - Ramp And Hold

    Pathway Technical Reference Manual Figure 37: Program Menu – Ramp and Hold The table below describes the program parameters available for Ramp and Hold method: Table 14: Program Parameters Parameter Description Temperature from which each new stimulation sequence begins. Baseline (°C) ATS: 10°C –...
  • Page 73 Pathway Technical Reference Manual Parameter Description Defines the duration for Thermode temperature to remain at Duration time (sec) destination temperature before returning to baseline. Valid range: 0 to 600 (sec) Defines whether the temperature returns to the baseline or proceeds Return option to the destination temperature of the next sequence.

  • Page 74: Pulses

    Pathway Technical Reference Manual 7.7.2 Pulses In this method, the temperature rises or falls at a very rapid rate, and then returns to a predefined starting point of a new pulse. For an example graph and an explanation of the method, refer to section ‎...
  • Page 75 Pathway Technical Reference Manual Parameter Description The Offset is used to control the overshoot of the Thermode Offset (°C) temperature when it reaches the destination temperature. To determine the offset required, run the program with different values until you are satisfied with the results.

  • Page 76: Search

    Pathway Technical Reference Manual 7.7.3 Search In this method, the intensity of the stimulus changes according to the patient's response. Using the response unit or CoVAS the patient can control whether the temperature will increase or decrease and to what extent. For an example graph and an explanation of the ‎...

  • Page 77: Limits

    Pathway Technical Reference Manual Parameter Description Defines the temperature change rate during the search period. Search Rate (°C/sec) Defines the duration of the search period. Valid range: 1 to 600 Duration time (sec) The number of trials per sequence. Valid range: 1 to 100 Number of Trials Minimum Inter-Stimulus-Interval (ISI).

  • Page 78: Levels

    Pathway Technical Reference Manual Parameter Description Temperature from which each new stimulation sequence begins. Baseline (°C) ATS: 10°C – 45°C CHEPS: 30°C – 45°C Trigger mode: Trigger  Automatic – the stimulus will start automatically after the defined Inter Stimulus Interval (ISI).

  • Page 79: Figure 41: Program Menu - Levels

    Pathway Technical Reference Manual Figure 41: Program Menu – Levels The table below describes the program parameters available for Levels method: Table 18: Program Parameters Parameter Description Defines the direction of stimuli: temperature will decrease for Modality Cold Sensation (CS), and increase for Warm Sensation (WS).
  • Page 80 Pathway Technical Reference Manual Parameter Description Defines the temperature change rate from destination back to Return Rate baseline temperature. Valid range: 0.1 to 5°C/Sec. (°C/sec) Defines the maximum duration for Thermode temperature to Max. Time at remain at destination temperature before returning to baseline.

  • Page 81: Thermal Sensory Limen (Tsl)

    Pathway Technical Reference Manual Parameter Description Indicate different temperature points via TTL or Sound. See Temperature points section ‎ 7.7.6 Thermal Sensory Limen (TSL) In this method, the system generates warm sensation and cold sensation stimuli, alternating according to the subject response. The stimuli direction changes after each subject response.

  • Page 82: Vas Search

    Pathway Technical Reference Manual Parameter Description Trigger mode: Trigger  Automatic – the stimulus will start automatically after the defined Inter Stimulus Interval (ISI).  Manual – The operator will initiate the onset of the stimulus after the defined ISI (using the manual...
  • Page 83 Pathway Technical Reference Manual Trigger mode: Trigger  Automatic – the stimulus will start automatically after the defined Inter Stimulus Interval (ISI).  Manual – The operator will initiate the onset of the stimulus after the defined ISI. Temperature of first stimulus. Valid range may be limited by safety First destination restrictions, rate and duration time.

  • Page 84: Chain Program

    Pathway Technical Reference Manual Indicate when Thermode temperature reaches specific temperature Temperature Points points. See section ‎ 7.7.8 Chain Program The purpose of the Chain Method is to chain several programs one after the other. The result is a master program which runs the selected programs continuously, each program repeated by the number of cycles defined and in order according to the indexed list.

  • Page 85: Standard Events

    Events can be marked by a TTL and/ or sound: 1. TTL Trigger – Pathway can send a TTL signal which can be used for synchronization with external systems. 2. Sound – a sound can be played from the computer (speakers are required) when a certain event occurs.

  • Page 86: List Of Standard Events According To Program Type

    Pathway Technical Reference Manual Figure 46: Standard Event Editor For each event that you want to configure mark the TTL and/or the Sound column to activate. Once the event is activated, you can use the drop down list to select a different event type (relevant for 4-bit TTL).

  • Page 87: Temperature Events

    Pathway Technical Reference Manual Program Standard Events Description Method The start of each trial in the sequence Levels Onset Destination Thermode temperature reached target temperature End of duration at target temperature End of Duration Time based event timed from the onset...

  • Page 88: Test Instructions

    Pathway Technical Reference Manual Figure 49: Temperature Event Editor For each event that you want to configure mark the TTL and/or the Sound column to activate. Once the event is activated, you can specify the temperature and direction (temperature increase or decrease) in which the event should occur.

  • Page 89: Import / Export Programs

    7.11 Import / Export Programs Programs from the program list can be exported and saved for backup or imported into another Pathway system. The export format uses a secure and unique format that can be accessed by Medoc Main Station software only.

  • Page 90: Import Programs

    3. Click on the Open button. The programs will be added to the program list. 7.11.3 Solving Conflicts When Importing Programs Medoc Main Station identifies any possible conflicts between existing programs and imported programs. In case of conflict (e.g. programs have the same name) it is possible to manually select how to handle the import.

  • Page 91: Patient Management

    Pathway Technical Reference Manual Patient Management This chapter explains how to add and edit patient records. 8.1 Patients List The Patients screen enables you to manage the patient list. 1. To access the patient database, click the Patients button in the toolbar. The following...

  • Page 92: Adding A New Patient

    Pathway Technical Reference Manual Figure 54: Patient Management – Patient details preview Patient details cannot be edited from the Patient Details view. 8.2 Adding a New Patient To add a patient to the patients list: 1. From the Patients screen, click on the Add New Patient button...

  • Page 93: Remove A Patient

    Pathway Technical Reference Manual Figure 55: Patients Editor Screen 2. Insert all the relevant patient data. Missing or incorrect parameters are highlighted by an icon next to the relevant field. A short description of the problem is displayed when holding the cursor over the relevant icon.

  • Page 94: Add \ Edit Departments

    8.6 Import / Export Patient Records Patient details can be exported and saved for backup or imported into another Pathway system. The export format uses a secure and unique format that can be accessed by Medoc Main Station software only.

  • Page 95: Import Patient Records

    8.6.3 Solving Conflicts When Importing Patient Records Medoc Main Station identifies any possible conflicts between existing patient records and imported patient records. In case of conflict (e.g. patients with same unique ID) it is possible to manually select how to handle the import. The following options are available: 1.

  • Page 96: Results Management

    Pathway Technical Reference Manual Results Management This chapter explains how to view, export and print reports from saved test results. 9.1 Results List The Results screen displays the list of saved test results. 1. To access the results database, click the Results button in the toolbar. The following...

  • Page 97: Import / Export Results

    Test Results can be exported and saved for backup, further analysis or to import to another Pathway system. Test results can be exported using the default export format which is secure and can only be accessed by Medoc Main Station software. Alternatively, results can be exported to an excel file for further analysis.

  • Page 98: Export Test Results

    Pathway Technical Reference Manual 9.2.1 Export Test Results In order to export test results follow the procedure below: 1. Open the result list in the Results screen. 2. Select the test result to export. Multiple selection is possible by holding down the Shift or Ctrl and Shift buttons on the keyboard 3.

  • Page 99: Import Test Results

    3. Keep Both – Edit the conflicting fields of the patient or program data and keep both test results. 9.3 Generate Test Reports MEDOC Main Station has a powerful Analysis and Report Generator that can be customized as needed. In order to print test results follow the next steps: 1.

  • Page 100: Analysis Report Types

    Pathway Technical Reference Manual 8. Advanced Options: the advanced options enable you to configure the results which will be displayed in the report. The following options are available: Table 22: Report Advanced Options Parameter Description Specify number of trials to display (relevant only for trial based...
  • Page 101 Pathway Technical Reference Manual Report Description Restrictions Type Compares test statistics for two Test Methods: TSL, Levels, Limits Site to Site different body sites of the same Selection of 2 result files patient. Identical Test Subject Identical Test Program Different Main and / or Specific Site...

  • Page 102: Examples Of Reports Types

    Pathway Technical Reference Manual 9.3.2 Examples of Reports Types Figure 62: Singles Report Figure 63: Multiple Report Figure 64: Site to Site Report Figure 65: Pre / Post Report Proprietary 102 of 190...

  • Page 103: Figure 66: Trend Report

    Pathway Technical Reference Manual Figure 66: Trend Report Figure 67: Bilateral Report Figure 69: Custom Report Figure 68: Pain Rating Report Proprietary 103 of 190...

  • Page 104: System Configuration

    Pathway Technical Reference Manual 10. System Configuration This chapter describes the available system configuration options. The available system configuration options depend on the user authorization level (see section ‎ 0.1.6) 10.1 Software Settings The Software Settings menu includes communication setup, user interface and preferences and user management (authorization levels).

  • Page 105: Report Options

    1. Select the COM port from the Pathway COM Port list: 1.1. Auto Detect – automatically scan all available ports 1.2. COM “X” – select the specific COM port PATHWAY is connected to. Select this option if you already know the Port number or the “Auto Detect” option has failed.
  • Page 106 Pathway Technical Reference Manual Proprietary 106 of 190...
  • Page 107 Pathway Technical Reference Manual 10.1.2.1 General Options 1. Show body site – show \ hide body site image in the report. Check or uncheck the checkbox on the left and click the Apply button to save changes. 2. User Logo – Add institution logo to reports. To add a user logo: 2.1.
  • Page 108 Report Type and Method. Editing a report template requires some basic programming skills and knowledge of the database structure. Contact Medoc Support for further assistance if needed. The built-in report templates cannot be edited. To create a customized template based on a pre-existing template, create a copy of the template and edit the copy.

  • Page 109: Results Fields

    Pathway Technical Reference Manual 10.1.3 Results Fields Configure the fields that will be visible in the results table. The available fields include patient data, program data and test information. To access Results Field settings: from the top menu bar, select Settings and then Software Settings.

  • Page 110: Figure 75: Patient Fields Configuration Screen

    Pathway Technical Reference Manual Figure 74: Patient Fields Configuration Screen The available options are described in the table below: Table 24: Patient Fields Parameter Description Unique Fields Used for conclusive patient identification (more than one can be selected). These fields must be unique per patient. Two or more patients cannot have the same value in a unique field.

  • Page 111: Button Configuration

    There are four available authorization levels: Software Administrator; Biomedical Engineer; Medical Supervisor and Operator. See The following table lists the main functions and operations available in Medoc Main Station software and specifies which functions are available for each user authorization level.

  • Page 112: Table 25: Authorization Parameters

    Pathway Technical Reference Manual To access User Management Configuration option: from the top menu bar, select Settings and then Software Settings. In the Software Settings window that opens, select the Button Configurations tab. 10.1.6.1 Add/Remove Users 1. Click the add user button at the bottom of the user list.

  • Page 113: Figure 77: User Authorization Software Settings

    10.1.6.2 Allowed functions according to authorization level The following table lists the main functions and operations available in Medoc Main Station software and specifies which functions are available for each user authorization level. Table 26: Functions according to authorization level...
  • Page 114 Pathway Technical Reference Manual Software Biomedical Medical Screen Function Operator Administrator Engineer Supervisor View Program √ √ √ √ Details Clear √ √ √ √ Go to Test… √ √ √ √ Tool bar - Export √ √ √ √...
  • Page 115 Pathway Technical Reference Manual Software Biomedical Medical Screen Function Operator Administrator Engineer Supervisor Settings General View √ √ √ √ TTL out Pulses √ √ √ duration (msec) TTL Polarity √ √ √ TTL Diagnostic √ √ √ √ Enable thermode √...
  • Page 116 Pathway Technical Reference Manual Software Biomedical Medical Screen Function Operator Administrator Engineer Supervisor Edit √ √ √ √ Body sites √ View √ √ √ Edit √ √ √ Events marker √ View √ √ √ Edit √ √ √...

  • Page 117: Hardware Settings

    Thermode Calibration and CoVAS configuration. To access the hardware settings options, from the top menu bar, select Settings and then Hardware Settings. The Pathway needs to be ON and connected to the computer in order to access the hardware settings menu.
  • Page 118 Idle and 5V when triggered. For (-)5V: The TTL is 5V when Idle and 0V when triggered. 2.2. TTL IN: The polarity of the TTL IN does not need to be configured. Pathway will automatically detect if it is 5V or (-)5V.

  • Page 119: Safety

    Pathway Technical Reference Manual 10.2.2 Safety The safety limits and parameters can be viewed from Safety tab in the hardware settings menu. Safety parameters included the limits on duration of stimulus according to temperature, self-test parameters and parameters for the safety tab displays the software temperature time limitations which are allowed according to the program safety regulations.

  • Page 120: Covas Calibration

    Pathway Technical Reference Manual 10.2.4 CoVAS Calibration Calibrating the CoVAS ensures the CoVAS range 0 to 100 corresponds with the left most and right most point of the slider, respectively. Calibrate the CoVAS before the first time it is used The CoVAS should be calibrated when: ...

  • Page 121: Test Settings

    Pathway Technical Reference Manual 10.3 Test Settings The Test Settings menu includes settings and preferences which affect how the tests are performed and displayed. To access the test settings options, from the top menu bar, select Settings and then Test Settings.

  • Page 122: Table 27: Pre-Test Parameters

    Pathway Technical Reference Manual The following options are available: 10.3.1.1 Pre-test settings Table 27: Pre-test parameters Parameter Description Low temperature The bottom margin for a stabilized temperature allowed for a margin successful pre-test. High temperature The top margin for a stabilized temperature allowed for a margin successful pre-test.

  • Page 123: Table 31: Temperature Scale Configuration

    Sets the minimum and maximum temperature that is allowed Temperature Limits during a test for ATS and CHEPS Thermodes. This parameter does not replace the safety limitation of the PATHWAY; it allows limiting the stimulus temperature to a specific range, according to unique requirements.

  • Page 124: Event Marker

    Pathway Technical Reference Manual 10.3.2 Event Marker Configure the keyboard keys, manual trigger button or patient response unit to mark events during a test. To access Event Marker Configuration: from the top menu bar, select Settings and then Test Settings. In the Test Settings windows that opens, select the Event Marker tab. The...

  • Page 125: Event Sound Configuration

    To change the sound for an event: 1. Click the cell in the right column of the event 2. Click the arrow to view a list of available sounds from Medoc Main Station sound library or click the blank button to add your own.

  • Page 126: Body Site Editor

    Pathway Technical Reference Manual 10.3.4 Body Site Editor Customize the list body sites to select from when running a test. To access the Body Sites editor: from the top menu bar, select Settings and then Test Settings. In the Test Settings window that opens, select the Body Sites tab. The following...

  • Page 127: 4-Bit Ttl Configuration

    Pathway Technical Reference Manual 10.3.5 4-Bit TTL Configuration Configure the 4-bit TTL words which can be used to synchronize between test events and external systems or applications. To access the 4-bit TTL Configuration: from the top menu bar, select Settings and then Test Settings.

  • Page 128: Text And Audio Test Instructions

    Pathway Technical Reference Manual 10.3.6 Text and Audio Test Instructions Edit the default text and audio test instructions which apply to each program type. To access Test Instructions settings: from the top menu bar, select Settings and then Test Settings. In the Test Settings window that opens, select the Instructions Configuration tab.
  • Page 129 Pathway Technical Reference Manual 10.3.6.2 Audio Instructions To add or change the default audio instructions for a test method: To add audio instructions: 1. Create an audio file of the instructions in one of the following formats: WAV, WMA, MP3 2.

  • Page 130: System Information And Logs

    In the window that opens click the Sys info button, select a location to save the file and click Ok. A sys info file will be created in the selected save location. Send this file to your Medoc service representative if required.

  • Page 131: Customer Experience Improvement Program

    ("MCEIP") which is aimed at improving the customer’s experience with the MMS software. Medoc offers to its customers who wish to do so, participation in the MCEIP, by allowing Medoc to collect various reports related to the customers' use of the MMS Software.
  • Page 132 Pathway Technical Reference Manual Figure 91: MMS Home Screen 2. Select Options and then Preferences. The following screen is displayed: 3. Under Privacy, select your preferred option and click OK. Proprietary 132 of 190...

  • Page 133: Appendix A - Normative Data

    1. Medoc is not responsible or liable for, and does not guarantee or underwrite, the accuracy, completeness or applicability of the information contained in the Normative Data. 2. Medoc is not responsible or liable for the use you make of the ND Feature, nor is it liable for your conclusions from such use.

  • Page 134: Enable Normative Data

    12.2 Enable Normative Data Normative Data is automatically enabled if you agreed to the terms and conditions during ‎ Medoc Main Station installation (see section .7). However, even if you decided not to enable Normative Data during installation, you can always enable later.

  • Page 135: Normative Data Editor

    Pathway Technical Reference Manual Figure 93: Normative Data License Agreement 3. Read the license agreement and click Apply to accept. 4. Normative Data is now enabled. 12.3 Normative Data Editor The Normative Data editor allows you to select the Normative Data source and to add your own customized normative data.

  • Page 136: Table 33: Normative Data Fields

    Pathway Technical Reference Manual Figure 94: Normative Data Editor Screen The Normative Data Editor screen is divided into two sections: 1. Manufacturer Normative Data 2. User Normative Data The Manufacturer Normative Data table is a ‘read-only’ table. The data cannot be edited or modified.

  • Page 137: Selecting Normative Data Source

    Pathway Technical Reference Manual Parameter Description Mandatory Baseline The Baseline Temperature  Rate The temperature change rate  The number of subjects which the normative data statistics is based on. The average threshold of the subjects that were tested to See note collect the specified normative data.
  • Page 138 Pathway Technical Reference Manual Proprietary 138 of 190...

  • Page 139: Normative Data Display

    Pathway Technical Reference Manual 12.5 Normative Data Display The Normative Data can be displayed on the test screen during the test, and it can also be included with the results and displayed on the report. The Data will be displayed only if the following test parameters match...

  • Page 140: Appendix B - Cold Evoked Potentials

    13. Appendix B – Cold Evoked Potentials 13.1 Overview Pathway can generate cold temperature pulses with the CHEPS Thermode which can be used for Cold Temperature Evoked Potentials. The minimum temperature the CHEPS Thermode can reach is 20°C. The Cold Temperature Pulses for CHEPS option is an add-on feature which requires a separate license and it is not included in the standard configuration.
  • Page 141 Pathway Technical Reference Manual Parameter Description Defines the temperature change rate from the baseline to Destination rate destination temperature. (°C/Sec) Destination rates are limited according to the destination temperature, as follows: For destination between 20°C – 25°C: rate limits are 0.1-15°C/Sec For destination between 25°C –...

  • Page 142: Appendix C - External Control

    The following section describes two typical setup examples for the external control interface. 14.2.1 Open Control Mode In an open control mode, the external application communicate with the Medoc Main Station computer and sends commands to select and start specific programs, start or stop the test, or emulate the subject’s response by sending ‘Yes’...

  • Page 143: Typical Workflow

    Station receives 8-bit words (parallel commination) or commands (TCP socket communication) which determine which test program to use. The external application decides which test program to send based on input it receives from the Pathway (analog output) or other sources such as EEG or MRI systems.

  • Page 144: Parallel Communication

    Medoc Main Station computer using parallel ports (D-type 25 pin). 2. Both Medoc Main Station computer and the computer or device used for the external control must have a physical parallel port (D-type 25 pin). The parallel interface will not work with a USB-to-Parallel adapter.

  • Page 145: Network Communication (Tcp Sockets)

    1.1. LPT Port (parallel communication) 1.2. TCP port (Network communication). 2. For TCP port the IP address of the Medoc Main Station computer will be displayed as well as the default Port number. The port number can be changed. Proprietary...

  • Page 146: Program Setup

    Pathway Technical Reference Manual Figure 102: External Control – Select Communication Method 14.5.2 Program Setup In order to use the external control to select a program, the program must be added to the remote program list and assigned an 8-bit word.

  • Page 147: Common Test Operations

    1. Select a Patient from the Patient List (required) and a Body site (Optional) 2. Click the Go to Test Button. Medoc Main Station will now be in ‘Listening Mode’ and wait for the 8-bit word or command to select a program (see Figure 104).

  • Page 148: Safe Mode

    Pathway Technical Reference Manual 7. At the end of the test, the results will be saved automatically and Medoc Main Station will return to the Program selection screen and wait for the next program command. Figure 104: Listening mode 14.5.6 Safe Mode Medoc Main Station will not receive commands from the external application (except for ‘Get...

  • Page 149: Appendix D - Fmri Conditional Pathway

    15. Appendix D – fMRI Conditional PATHWAY PATHWAY fMRI Thermode and accessories are defined and marked as MR Conditional equipment according to the ASTM F2503–08. PATHWAY Cart and MR filters are defined and marked as MR Unsafe equipment according to the ASTM F2503–08. WARNING: Make sure that the Thermode is unblemished in order to prevent potential harm to the test subject.
  • Page 150 Pathway Technical Reference Manual The PATHWAY fMRI filter is an electronic filter designed to reduce magnetic noise from the MR environment, which might be transferred to the Thermode. The fMRI filter includes:  8 UNC-2Api, C2L filters and Feed-Thru Capacitors with the following specifications: Damping: 10MHz/14dB, 100MHz/55dB, and 1GHz/70dB.

  • Page 151: Installation - Cheps Mr Filter

    2. Connect the system devices according to the following stages: 2.1. Connect the PATHWAY system so it would be placed in the MRI control room, while the Thermode itself is placed in the MRI room, as shown in the diagram:...
  • Page 152 5.2. Conduct the test, when the Pathway is ON and software is OFF, 5.3. Conduct the test, when the Pathway and software are ON and software test is running. 6. The installation is finished if all three tests are passed successfully.
  • Page 153 Pathway Technical Reference Manual The SIP/SOPs (signal input and outputs) must be connected to medical grade safety approved equipment for Canada and the United States, by a recognized certification agency, which is connected to the common protective earth of the system.

  • Page 154: Appendix E - Ftp Support

    Pathway Technical Reference Manual 16. Appendix E – FTP Support Enables to upload test results to FTP location for collaboration, multi-center studies or backup. There is an option to automatically save and upload test results immediately after test completion (requires internet connection).

  • Page 155: Configure The Ftp Upload Server

    Pathway Technical Reference Manual Figure 110: Software Settings Export Tab 16.1.1 Configure the FTP Upload Server To configure the server enter the following details: 1. Server URL – the FTP address. Use a specific address including the folder to which you want the results to be uploaded to.

  • Page 156: Appendix F - Pain Rating

    Pathway Technical Reference Manual 17. Appendix F – Pain Rating Enables advanced options for monitoring Patient Response: customized range for numerical pain rating scale, multiple ratings per trial. 17.1 Pain Rating Parameters Configuration Pain rating is available only for Ramp & Hold program.
  • Page 157 Pathway Technical Reference Manual Figure 112: Pain Rating Limits Proprietary 157 of 190...

  • Page 158: Appendix G - Patient Record Control

    Pathway Technical Reference Manual 18. Appendix G - Patient Record Control Allows full customization of patient fields including the options to add, remove, rename and control input. 18.1 Control Patient Field Entry Format with Input Masks When you have several users entering patient data, you can control how the data must be entered in specific fields in order to maintain consistency.

  • Page 159: Add/Remove Patient Fields

    Pathway Technical Reference Manual computer Examples 1. A mask for entering a telephone number: (999)000-00-00. Each ‘0’ Regular Character requires a number in the corresponding position. No number in these positions can be omitted. The Regular Character ‘9’ represents an optional area code. Only a number can be entered in these positions but it is not required.
  • Page 160 Pathway Technical Reference Manual Figure 114: Patient Card with Selected Patient Fields To add Patient Fields to the Patient Table: 1. Select fields to add from the Patient Card Fields list and click the Move Right button 2. Click the Apply button to confirm changes To remove Patient Fields from Patient Table: 1.

  • Page 161: Appendix H - Filling The System Cooling Unit Reservoir

    After assembling the PATHWAY system for the first time, the cooling unit reservoir is empty. Before connecting PATHWAY to the power supply and using it for the first time make sure that the system has been upright for at least 3 hours, and the coolant reservoir has been filled with an approved coolant.
  • Page 162 Pathway Technical Reference Manual Follow the instructions below in order to fill the PATHWAY ECU reservoir: 1. Open the ECU service door. Figure 117: Service Door is Open 2. Connect the hose and the funnel to the filling tap in the service panel and adjust it into the filling tap, as shown below.
  • Page 163 Pathway Technical Reference Manual 3. Open the filling tap and the funnel tap. Figure 121: Open filling tap Figure 122: Open funnel tap 4. Fill in the coolant into the ECU through the funnel, until the coolant level reaches the required level, between the minimum and maximum levels.
  • Page 164 Figure 127: Disconnecting the hose 7. Close the service door. Medoc recommends checking the reservoir for residue at least once every 6 months. Refer to Pathway Service Manual for further information. Proprietary 164 of 190...

  • Page 165: Appendix I - Accessories

    Pathway Technical Reference Manual 20. Appendix I – Accessories The following list of accessories can be purchased from Medoc, and are listed with their Catalogue numbers, which should be quoted when ordering a specific accessory. 20.1 System & Thermode Accessories Table 38: System &...
  • Page 166 Pathway Technical Reference Manual Description Cat. No. Manual Trigger AS 00241 Can be used to manually trigger the onset of the stimulus. Emergency (Panic) Button AS 00245 An extension to the on-system Emergency button which can be given to the patient to hold during the test.

  • Page 167: Service & Maintenance Accessories

    Pathway Technical Reference Manual 20.2 Service & Maintenance Accessories Table 39: Service& Maintenance Accessories Description Cat. No. Analog & 4bit TTL Flat Cable WA 00265 26 lead flat cable with header which connects to the Analog and Digital I/O port (cable length: Approx. 1m) Analog &...
  • Page 168 Pathway Technical Reference Manual Description Cat. No. Thermode Calibration Kit AS 00143 Coolant Cleaning Kit AS 00212 Disc Filter GP 00241 Used to clean coolant circulation Proprietary 168 of 190...

  • Page 169: Mri Conditional Accessories

    Pathway Technical Reference Manual 20.3 MRI Conditional Accessories Table 40: MRI Conditional Accessories Description Cat. No. MRI Conditional CHEPS Thermode AS 00253 The Thermode is MRI conditional, and comprised of non-magnetic / low magnetic components. The Thermode has an extended cable length of 10 meters to...
  • Page 170 Pathway Technical Reference Manual Description Cat. No. Computerized Visual Analog Scale AS 00248 (CoVAS) for MRI MRI conditional version of the CoVAS which can be used inside the MRI room. Includes an extended cable length of 10 meters. MRI Conditional Emergency (Panic)

  • Page 171: Appendix H - System And Module Description

    1.1. PATHWAY Electrical Box (for detailed description, refer to the drawing below). 1.2. External Cooling Unit. 1.3. Isolation Transformer. 2. PATHWAY Accessories (for a detailed description of the accessories, refer to section ‎ 2.1. Thermode (to be attached to the test subject’s skin). 2.2. CoVAS.

  • Page 172: Appendix J - Preventive And Periodical Maintenance

    Kapton® cover of the CHEP Thermode is intact and not peeled. 2. Make sure both Thermodes are properly connected the PATHWAY system. If your license only includes one Thermode type (CHEPS or ATS), make sure to connect a bypass water tube in place of the water connectors of the missing Thermode.

  • Page 173: Periodical System Run

    Figure 129: Flow rate gauge Note that if PATHWAY is not connected to the computer than after 5 minutes the pump shuts down and the flow rate goes down to zero. Start Medoc Main Station software and connect to PATHWAY or turn PATHWAY OFF and back ON after 30 seconds to return the flow.

  • Page 174: Thermode Calibration

    3. Drain the coolant the system (refer to the Service Manual for instructions). 4. Disconnect all accessories from the PATHWAY system, and store them in a dry place. 5. Disconnect all Thermodes from the PATHWAY system, cover the Thermode heads with soft cloth and store in a dark dry place.

  • Page 175: Appendix K - Cleaning And Disinfecting

    Pathway Technical Reference Manual 23. Appendix K – Cleaning and Disinfecting Perform this procedure before initially using the Thermode and after each use, to minimize the spread of pathogens between test subjects. 1. Thoroughly clean the Thermode contact surface using alcohol wipes.

  • Page 176: Appendix L - List Of Accompanying Documents

    Pathway Technical Reference Manual 24. Appendix L – List of Accompanying Documents  Unpacking instructions and list of delivered accessories.  Quick installation guide.  Release Notes.  Acceptance Test Procedure (doc)  Packing list Proprietary 176 of 190...

  • Page 177: Appendix M - Transportation And Storage Conditions

    Pathway Technical Reference Manual 25. Appendix M – Transportation and Storage conditions The environment conditions for PATHWAY system transportation and storage are as follows:  An ambient temperature range of 0 °C to +70 °C.  A relative humidity range of 10% to 95%, including condensation.

  • Page 178: Appendix N - Environmental Conditions

    Pathway Technical Reference Manual 26. Appendix N – Environmental Conditions The environment conditions for PATHWAY system during standard use are as follows:  An ambient temperature range of+18°C to+24 °C  A relative humidity range of 30% to 75%, including condensation ...

  • Page 179: Appendix O - Troubleshooting

    In most cases, if a message like the one above pops up it will not be possible to continue working with Medoc Main Station until the message is acknowledged by clicking the OK, YES or NO buttons as indicated by the message.
  • Page 180 20. points (less than 20) or select NO to return and calibrate more points. 1. Click YES if you want PATHWAY to perform interpolation and fill out the missing values. 2. Click NO to enable return to the Hardware Settings and fill in missing values.

  • Page 181: Frequent Error Messages

    (via back door). 3. Select Retry to for the system to reconnect or Cancel to start MEDOC Main Station in Demo Mode. 4. If the problem persists, start MEDOC Main Station in Demo Mode and refer to section 1 0.1.1 for further information or ‎...
  • Page 182 Message Text Description Communication between PATHWAY Communication between the computer and and PC lost while in Test Run mode. PATHWAY has been disconnected while in Test Error Code: 800C Mode. 1. Restart the PATHWAY system and Medoc Main Station 2. Run the system Self-Test If the problem persists, contact Medoc service.
  • Page 183 2. Check that the Thermodes are intact and undamaged. 3. Run the system Self-Test If the problem persists, stop using the PATHWAY system and contact Medoc service. Safety cold duration limit violation. The temperature duration limit has been exceeded. The PATHWAY system automatically Temperature level: # (°C), Time...
  • Page 184 If the temperatures are higher than stated above, wait 5-10 minutes and check again. 3. Run Self-Test to verify that the PATHWAY system is enabled to continue work. If the problem persists, stop using the PATHWAY system and contact Medoc service.
  • Page 185 Thermode TEC did not respond to The system Self-Test failed due to a problem temperature changes. Error Code: in one of the Thermodes. PATHWAY remains in 8007 Safe Mode to prevent any damage. 1. Check that the Thermode is intact and undamaged.
  • Page 186 3. Run the system Self-Test again. If the problem persists, stop using the PATHWAY system and contact Medoc service. Empty command buffer. Error Code: An error has occurred in the PATHWAY 400C processor during run time. Click OK and continue working as usual.
  • Page 187 1. Check that the coolant temperature is according to the requirement. 2. Run the system Self-Test to verify that there is no fault in the PATHWAY system or Thermodes. If the problem persists, stop using the PATHWAY system and contact Medoc service.

  • Page 188: Table 44: Errors During Calibration

    Pathway Technical Reference Manual Table 44: Errors during calibration № Message Text Description The thermometer does not respond. These errors indicate a problem with thermometer communication. 1. Check that the thermometer is turned on. 1. Check that the thermometer is turned on 2.

  • Page 189: Faulty System Responses

    ON-LINE mode. 2. Verify that the Emergency button is not pushed in. 3. Verify that the PATHWAY system is not in Safe Mode (Safety indicator, in status bar, is GREEN) – run the system Self-Test to switch to Rest Mode 4.
  • Page 190 4. Try to locate leakage origin. If the problem persists, stop using the system and contact Medoc service. 1. Check that the PATHWAY is turned ON and No TEC Response communication is established (see power failure and communication problems above) 2.

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