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Amrex Z-STIM IF250 User Manual

Interferential/russian stimulator
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Z-STIM
IF250
™
*
Interferential / Russian Stimulator
User's Guide
Amrex
®
electrotherapy equipment
a division of Amrex-Zetron, Inc.
*Federal law (USA) restricts this device to sale by or on the order of a licensed practitioner licensed by the law of the state in which
he practices to use or order the use of this device.

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Summary of Contents for Amrex Z-STIM IF250

  • Page 1 ® electrotherapy equipment a division of Amrex-Zetron, Inc. *Federal law (USA) restricts this device to sale by or on the order of a licensed practitioner licensed by the law of the state in which he practices to use or order the use of this device.
  • Page 2 IF250 User's Guide Interferential/Russian Stimulator Revised February 2014 Copyright Amrex-Zetron, Inc. 1995. All rights reserved. © Printed in the United States of America The following are registered or trademarked by Amrex: ® Amrex ™ Z-Stim Flextrode ® ® AMREX electrotherapy equipment a division of Amrex-Zetron, Inc.
  • Page 3 Upon receipt of your IF250, verify your accessories against the enclosed check list. Promptly return the postage paid Registration Card to Amrex. Save the original shipping carton and all packing materials. Please carefully review this User’s Guide prior to operating the Amrex Z-Stim IF250 Interferential/Russian Stimulator.
  • Page 4 9069. Damage, resulting from repairs made outside the factory, is not covered under the warranty. To maintain original design specifications, your Amrex IF250 must be calibrated and safety tested on an annual basis. Amrex strongly recommends that servicing be referred to the factory. Call toll free (800) 221-9069.
  • Page 5 Important AMREX Intensity Reset Circuit: The Amrex IF250 incorporates a unique safety reset function as part of the Intensity controls. This is to prevent any sudden or inadvertent stimulation output to the patient in the event that: •...
  • Page 6 Electrical Muscle Stimulation—Contraindications Contraindicated for patients with cardiac demand pacemakers • Should not be used on cancer patients • Electrical Muscle Stimulation—Warnings Long term effects of chronic electrical stimulation are unknown • Safety has not been established for the use of electrical muscle stimulation during pregnancy •...

  • Page 7: Table Of Contents

    Table of Contents Part 1 Overview ..........................1 Part 2 Power/Timer Section ......................5 Part 3 Quad-Polar Interferential Modality .................. 9 Part 4 Bi-Polar Interferential Modality ..................19 Part 5 Russian (2500 Hz) Modality ....................29 Part 6 IF250 General Operation and Application Procedures ..........37 General Operation of Quad-Polar Interferential Modality ..........

  • Page 9: Part 1 Overview

    Part 1 AMREX Overview The layout of the IF250 panel consists of controls, indicator lights, digital displays and output jacks. IF250 User's Guide...

  • Page 10: Part

    Part 1 In the illustration below, dashed lines surround each of the IF250's sections. A brief description of each section follows the illustration. Parts 2 through 5 of this manual contain detailed descriptions. IF250 User's Guide...
  • Page 11 Overview Power / Timer Section Use Power / Timer Section to activate the main ac power, select the treatment modality, set the treatment duration and activate the timer. When the treatment is complete the generator will emit an audible signal and the Reset Intensities indicator light will flash.

  • Page 12: Part

    Part 1 IF250 User's Guide...

  • Page 13: Power/Timer Section

    Part 2 AMREX Power / Timer Section In the illustration below, dashed lines surround the IF250's Power / Timer section. IF250 User's Guide...
  • Page 14 Part 2 The Power / Timer section of the IF250 panel is depicted below. Items referenced with circled numbers (1 – 9) are explained on the following page. IF250 User's Guide...
  • Page 15 Power/Timer Section 1. QUAD-POLAR INTERFERENTIAL MODALITY INDICATOR LIGHT 2. MODE CONTROL: Selects the Quad-Polar, Bi-Polar or Russian modality. The selected modality indicator light will illuminate. The Russian modality indicator light will flash. Note: The Mode control is inoperable after the Start Timer control is pressed. 3.
  • Page 16 Part 2 IF250 User's Guide...

  • Page 17: Quad-Polar Interferential Modality

    Part 3 AMREX Quad-Polar Interferential Modality In the illustration below, dashed lines surround the IF250's Quad-Polar Interferential section. IF250 User's Guide...
  • Page 18 Part 3 The Quad-Polar Interferential section of the IF250 panel is depicted below. Items referenced with circled numbers (10 – 14) are explained on the following page. IF250 User's Guide...
  • Page 19 Quad-Polar Interferential Modality 10. CONSTANT MODE AND SWEEP MODE INDICATOR LIGHTS 11. CONSTANT / SWEEP FREQUENCY MODE CONTROL: Selects a Constant or Sweep mode. The Constant mode provides is a preset beat frequency and the Sweep mode provides a preset beat frequency range. The indicator light for the selected mode will illuminate.
  • Page 20 Part 3 The Quad-Polar Interferential section of the IF250 panel is depicted below. Items referenced with circled numbers (15 – 18) are explained on the following page. IF250 User's Guide...
  • Page 21 Quad-Polar Interferential Modality 15. CHANNEL 1 INTENSITY CONTROL : Regulates Channel 1 Intensity from Min to Max. The Channel 1 Intensity display will indicate the intensity in milliamps. The Channel 1 Intensity setting must not vary more than ±20% of the Channel 2 Intensity setting.
  • Page 22 Part 3 The Quad-Polar Interferential section of the IF250 panel is depicted below. Items referenced with circled numbers (19 – 22) are explained on the following page. IF250 User's Guide...
  • Page 23 Quad-Polar Interferential Modality 19. TREATMENT STOP JACK: Connection for the Patient Treatment Stop Switch. Note: When the Patient Treatment Stop Switch is activated, stimulator output will be discontinued immediately. The Channel 1 Intensity and Channel 2 Intensity displays reduce to 00, the Reset Intensities indicator light will flash and a sequence of audible signals will be emitted from the generator.
  • Page 24 Part 3 The Quad-Polar Interferential section of the IF250 panel is depicted below. Items referenced with circled numbers (23 – 25) are explained on the following page. IF250 User's Guide...
  • Page 25 Quad-Polar Interferential Modality 23. DYNAMIC MODE INDICATOR LIGHT: The Dynamic mode indicator light will illuminate indicating that the Dynamic cycle has been activated. 24. DYNAMIC CONTROL: (QUAD-POLAR MODALITY ONLY) When Dynamic control is pressed, the Dynamic mode indicator light will illuminate indicating that the Dynamic cycle has been activated.
  • Page 26 Part 3 IF250 User's Guide...

  • Page 27: Bi-Polar Interferential Modality

    Part 4 AMREX Bi-Polar Interferential Modality In the illustration below, dashed lines surround the IF250's Bi-Polar Interferential section. IF250 User's Guide...
  • Page 28 Part 4 The Bi-Polar Interferential section of the IF250 panel is depicted below. Items refer- enced with circled numbers (10 – 14) are explained on the following page. IF250 User's Guide...
  • Page 29 Bi-Polar Interferential Modality 10. CONSTANT MODE AND SWEEP MODE INDICATOR LIGHTS 11. CONSTANT / SWEEP FREQUENCY MODE CONTROL: Selects a Constant or Sweep mode. The Constant mode provides a preset amplitude modulation frequency and the Sweep mode provides a preset amplitude modulation frequency range.
  • Page 30 Part 4 The Bi-Polar Interferential section of the IF250 panel is depicted below. Items refer- enced with circled numbers (15 – 18) are explained on the following page. IF250 User's Guide...
  • Page 31 Bi-Polar Interferential Modality 15. CHANNEL 1 INTENSITY CONTROL : Regulates Channel 1 Intensity from Min to Max. The Channel 1 Intensity display will indicate the output intensity in milliamps. When the treatment period has ended without interruption: • the output intensities reduce to 00 as indicated on the Channel 1 Intensity and Channel 2 Intensity displays •...
  • Page 32 Part 4 The Bi-Polar Interferential section of the IF250 panel is depicted below. Items refer- enced with circled numbers (19 – 22) are explained on the following page. IF250 User's Guide...
  • Page 33 Bi-Polar Interferential Modality 19. TREATMENT STOP JACK: Connection for the Patient Treatment Stop Switch. Note: When the Patient Treatment Stop Switch is activated, stimulator output will be discontinued immediately. The Channel 1 Intensity and Channel 2 Intensity displays reduce to 00, the Reset Intensities indicator light will flash and a sequence of audible signals will be emitted from the generator.
  • Page 34 Part 4 The Bi-Polar Interferential section of the IF250 panel is depicted below. Item referenced with circled number (23) is explained on the following page. IF250 User's Guide...
  • Page 35 Bi-Polar Interferential Modality 23. RESET FUNCTIONS CONTROL: When the Reset Functions control is activated, stimulator output will be discontinued immediately. • The Channel 1 Intensity and Channel 2 Intensity displays reduce to 00 Milliamps • The Power / Timer display reduces to 00 Time in Minutes •...
  • Page 36 Part 4 IF250 User's Guide...

  • Page 37: Russian (2500 Hz) Modality

    Part 5 AMREX Russian (2500 Hz) Modality In the illustration below, dashed lines surround the IF250's Russian (2500 Hz) section. IF250 User's Guide...
  • Page 38 Part 5 The Russian (2500 Hz) section of the IF250 panel is depicted below. Items referenced with circled numbers (10 - 15) are explained on the following page. IF250 User's Guide...
  • Page 39 Russian (2500 Hz) Modality 10. REHAB MODE INDICATOR LIGHT 11. EXERCISE MODE INDICATOR LIGHT 12. EXERCISE REHAB CONTROL: Selects the Exercise mode (10 seconds on, 10 seconds off) or Rehab mode (10 seconds on, 50 seconds off). Before selecting the Exercise or Rehab mode: •...
  • Page 40 Part 5 The Russian (2500 Hz) section of the IF250 panel is depicted below. Items referenced with circled numbers (16 – 20) are explained on the following page. IF250 User's Guide...
  • Page 41 Russian (2500 Hz) Modality 16. TREATMENT STOP JACK: Connection for the Patient Treatment Stop Switch. Note: When the Patient Treatment Stop Switch is activated, stimulator output will be discontinued immediately. The Channel 1 Intensity and Channel 2 Intensity displays reduce to 00, the Reset Intensities indicator light will flash and a sequence of audible signals will be emitted from the generator.
  • Page 42 Part 5 The Russian (2500 Hz) section of the IF250 panel is depicted below. Items referenced with circled numbers (21 - 23) are explained on the following page. IF250 User's Guide...
  • Page 43 Russian (2500 Hz) Modality 21. CHANNEL 1 OUTPUT JACKS : The Channel 1 Output jacks are black. 22. RESET INTENSITIES INDICATOR LIGHT: The Reset Intensities indicator light will flash and a sequence of audible signals will be emitted from the generator in the event that: •...
  • Page 44 Part 5 IF250 User's Guide...

  • Page 45: If250 General Operation And Application Procedures

    Part 6 AMREX IF250 General Operation and Application Procedures General Operation of Quad-Polar Interferential Modality 1. Connect the IF250's ac power cord to the IF250's ac receptacle and plug the "Hospital Grade" connector to a properly grounded 120Vac, 60Hz receptacle.
  • Page 46 Part 6 6. Press the Constant Sweep control to select Constant mode or Sweep mode. The Constant or Sweep mode indicator light will illuminate. Note: The Constant Sweep control selection can be changed anytime during treatment, except when the Dynamic cycle is activated. However, to avoid possible patient discomfort, before changing the Constant Sweep control selection, reduce the Channel 1 Intensity and Channel 2 Intensity controls to the 0/Reset position, enabling the audible "clicks".
  • Page 47 IF250 General Operation and Application Procedures 11. Press the Start Timer control to activate the treatment timer. A flashing decimal point on the Power / Timer display indicates timer countdown in 1 minute increments. 12. Slowly increase the Channel 1 Intensity control to the desired output level. The Channel 1 Intensity display will indicate the output intensity selected.

  • Page 48: Interferential Burns

    Part 6 14. When treatment is completed, stimulator output will be discontinued immediately. • The intensities reduce to 00 as indicated on the Channel 1 Intensity and Channel 2 Intensity displays • The treatment duration reduces to 00 as indicated on the Power / Timer display •...

  • Page 49: Application Of Electrical Muscle Stimulation Quad-Polar

    Apply a generous amount of Flextrode Conductive Spray to the moistened sponge cover. If the Flextrode Conductive Spray is not desired, apply a generous amount of Amrex Conductance and Coupling Gel to the thoroughly moistened Flextrode sponge cover. A generous amount of Flextrode Conductive Spray or Amrex Conductance and Coupling Gel is required to insure good conductivity.

  • Page 50: General Operation Of Bi-Polar Interferential Modality

    Part 6 General Operation of Bi-Polar Interferential Modality 1. Connect the IF250's ac power cord to the IF250's ac receptacle and plug the "Hospital Grade" connector to a properly grounded 120Vac, 60Hz receptacle. 2. Connect the Patient Treatment Stop Switch to the Treatment Stop Jack. 3.
  • Page 51 IF250 General Operation and Application Procedures 8. Verify that the Channel 1 Intensity and Channel 2 Intensity controls are set at the 0/Reset position. 9. Prepare the four pad electrodes and apply them to the patient. The pad electrodes may be held in place by means of retention straps or weight bags. Hand the Patient Treatment Stop Switch to the patient and explain its function.
  • Page 52 Part 6 13. When treatment is completed, stimulator output will be discontinued immediately. • The intensities reduce to 00 as indicated on the Channel 1 Intensity and Channel 2 Intensity displays • The treatment duration reduces to 00 as indicated on the Power / Timer display •...

  • Page 53: Application Of Electrical Muscle Stimulation Bi-Polar

    Apply a generous amount of Flextrode Conductive Spray to the moistened cloth cover. If the Flextrode Conductive Spray is not desired, apply a generous amount of Amrex Conductance and Coupling Gel to the thoroughly moistened Flextrode cloth cover. A generous amount of Flextrode Conductive Spray or Amrex Conductance and Coupling Gel is required to insure good conductivity.

  • Page 54: General Operation Of Russian (2500 Hz) Modality

    Part 6 General Operation of Russian (2500 Hz) Modality 1. Connect the IF250's ac power cord to the IF250's ac receptacle and plug the "Hospital Grade" connector to a properly grounded 120Vac, 60Hz receptacle. 2. Connect the Patient Treatment Stop Switch to the Treatment Stop Jack. 3.
  • Page 55 IF250 General Operation and Application Procedures 7. Prepare the pad electrodes and apply them to the patient. The pad electrodes may be held in place by means of retention straps or weight bags. Hand the Patient Treatment Stop Switch to the patient and explain its function. Note: When the Patient Treatment Stop Switch button is pressed, stimulator output will be discontinued immediately.
  • Page 56 Part 6 11. EXERCISE MODE OR REHAB MODE OPTION: The Exercise mode or Rehab mode option must be selected while the Russian (2500 Hz) Continuous mode is activated. Exercise Mode – A preset surge rate of: • 10 seconds on, 10 seconds off Rehab Mode –...
  • Page 57 IF250 General Operation and Application Procedures 12. When treatment is completed, stimulator output will be discontinued immediately. • The intensities reduce to 00 as indicated on the Channel 1 Intensity and Channel 2 Intensity displays • The treatment duration reduces to 00 as indicated on the Power / Timer display •...

  • Page 58: Application Of Electrical Muscle Stimulation Russian

    Apply a generous amount of Flextrode Conductive Spray to the moistened cloth cover. If the Flextrode Conductive Spray is not desired, apply a generous amount of Amrex Conductance and Coupling Gel to the thoroughly moistened Flextrode cloth cover. A generous amount of Flextrode Conductive Spray or Amrex Conductance and Coupling Gel is required to insure good conductivity.

  • Page 59: Adverse Effects - Shortwave Diathermy Interference

    IF250 General Operation and Application Procedures Adverse Effects - Shortwave Diathermy Interference It is extremely important for the physiotherapist to have a clear understanding of the potential danger involved in the use of an interferential device in close proximity to an active shortwave diathermy unit. A medical shortwave diathermy unit is a very powerful transmitter of radio energy, the larger ones having an output of 500 watts.

  • Page 60: Electrical Muscle Stimulation-Indications

    Part 6 Electrical Muscle Stimulation—Indications Relaxation of muscle spasms • Prevention or retardation of disuse atrophy • Increased local blood circulation • Muscle reeducation • Maintenance of or increase in range of motion • Immediate postsurgical stimulation of calf muscles to prevent venous •...

  • Page 61: Electrical Muscle Stimulation-Precautions

    IF250 General Operation and Application Procedures Electrical Muscle Stimulation—Precautions Precautions should be observed: When there is a tendency to hemorrhage following acute trauma or fracture • Following recent surgical procedures when muscle contraction may disrupt • the healing process Over the menstruating uterus •...
  • Page 62 Part 6 IF250 User's Guide...

  • Page 63: Specifications

    Appendix A Specifications Input Power Requirements Bi-Polar Modality Line Voltage ......120 Vac, 60 Hz Output Intensity ......99 mA peak (Special voltages available on request) 49.5 mA rms Current ............1.0 A Waveform: Channel 1 symmetrical modified sine wave Line Leakage .........
  • Page 64 Channel 1 ..........2500 Hz is not covered under the warranty. Channel 2 ..........2500 Hz Your Amrex stimulator must be tested and calibrated on an annual basis to maintain original Frequency - (Amplitude Modulation) design specifications.

  • Page 65: Appendix B References

    Appendix B References Andersson, S.A. "Pain Control by Sensory Stimulation". Bonica, J.J. et al ed. "Ad- vances in Pain Research and Therapy", Vol. 3, pp. 569-585. Raven Press, New York, 1979. Cauthen, J.C., and E. J. Renner. "Transcutaneous and Pheripheral Nerve Stimula- tion for Chronic Pain States".
  • Page 66 Appendix B IF250 User's Guide...

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