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Interferential Current (IFC) Unit Preventative Maintenance

Interferential Current (IFC) Unit Preventative Maintenance

What is an IFC?

An Interferential Current unit (IFC) is a device that delivers a small amount of current to a patient through lead wires and electrodes.  Electrodes (Carbon or felt) are placed on the patients skin which helps conduct the interferential current through the patient’s body.  There are many different waveforms that can be used; the most common waveforms being Interferential, Pre-modulation, Russian, Biphasic, and High Voltage.  Any of these waveforms can be used to achieve the patient’s rehabilitation goals whether they are to deal with chronic pain, improving their movement in their joints, or trying to repair damaged tissue.  It does this by increasing blood flow in the treatment area that the current is applied to; rehabilitation is also achieved by improving strength and by stimulating the production of natural hormones.

 

Maintenance performed

During our preventative maintenance checkup we check items pertaining to patient safety, device functionality, and device longevity.  Like all medical equipment the first thing completed is an electrical safety test on the unit to ensure that the unit is electrically sound (Blog Entry: https://trhservices.ca/technical-insights/electrical-safety-testing/).  After the electrical safety is performed a physical inspection of the device and all accessories (power cord, electrodes, lead wires) is completed to ensure that there are no signs of wear and tear.  Lastly the device’s output current and waveforms are viewed on an oscilloscope to ensure that all channels are working properly.  The waveforms are viewed to ensure that the channels are outputting the same current and to ensure that there is minimal line noise on all waves.  The next attribute that we look for in the waveform is that the correct waveform is being applied for the correct treatment plan.  As always we test each output channel to ensure that the electrical current is consistent and it falls in line with the treatment plan that was chosen.

 

Common Failures

The most common failure on an IFC unit is the electrodes; typically this is due to the electrodes not being changed often enough.  There are two common electrodes used in IFC treatments, they are felt electrodes and carbon electrodes.  Typically felt electrodes should be used between 8-10 times before they are replaced; a good practice for this type of electrode is having a set of electrodes for each patient and labeling them each time they get used.  These electrodes should also be placed in a sealable plastic bag which will help prolong their life.  The other common electrodes that are used is a carbon electrode and they last about a month.  Potential risk factors of overusing the electrodes are impending the output to the patient, shocking your patients, and in some cases, causing a burn on the patient’s skin.  Aside from the electrodes failing the next most common failure in an IFC unit is the lead wires; most of the time the lead wires will begin to wear near the strain reliefs and from there a wire may be exposed which can lead to shocking or causing burns on a patient.  If properly maintained an IFC can yield impressive results for a patient with minimal to no risk.

 

The TRH Value

The added valve of choosing TRH Services to complete your maintenance and repairs on your interferential units is that we will ensure that your device will be in great working condition for you and your patients for the next year and it will be fully certified.  The next value option that we have is that you can easily drop the equipment off at our site which is located at 23-140 McGovern Dr., Cambridge, Ontario, or we can provide onsite service to your facility if you are located in South-Western Ontario (London, Toronto, Kitchener, Waterloo, Cambridge, Guelph, Hamilton, etc.).

 

Common Interferential Units

Listed below is a list of some common Interferential units that we work on a regular basses:

 

Manufacturer Model Number Manufacturer Model Number
AMREX-ZETRON, Inc. US/50 Metron Medical Australia Pty Ltd. VP270
US/54 VS470
US200 Mettler Electronics Corporation ME900
BTL Industries Inc BTL-5000 ME930
Chattanooga Group Forte 200 ME992
Forte 400 ME994
Forte CB450 US200
Intelect (750MP) ME200
Intelect Advanced Combo (2762CC) ME206
Intelect Advanced Combo (2772MC) ME207
Intelect Legend Combo ME207A
Intelect Legend XT (2760) ME226
Intelect Mobile Combo (2778) ME228
Intelect Transport (2738) ME228
Intelect Advanced Stim (2765CS) ME294
Intelect Combo (780) Multiplex Stimulator LTD. 2
2783 2-39
Intelect Legend Stim CL-1
Intelect Legend Stim (7560) CL-10
Intelect Legend XT (2763) II
Intelect Legend XT (756) Multiplex CL-1
Intelect Transport Electrotherapy (2783) Physio Dyne Instrument Corp V
Intelect® Advanced Stim (2773MS) M2
Vectra Genisys (2770) 2500C
Current Solutions LLC ComboCare 2
Dimeq Diandyn 5 100500
Doelker Medizintechnik Vectrodyne 2 3010
Dynatronics Corporation D708 3020
D709 3030
D800 Omnistim 500
D850+ Physiomed Vectordyne1
D950 PTI 130 2500C
D950+ Quattro IF GM382IF
D951 R.A. Fischer Company Inc. NA
DRF100 Richmar Winner Evo CM4
D400 TM 2
D500 Winner ST2
D525 RM HV II
D525 Theramini 3C
D550+ Theratouch 7.7
D650+ Winner CM2 EVO
Electro-Medical Supplies Ltd. 113 Winner CM4 EVO
960 Winner EVO 4
Interferential 955 (112) Theramini 2
Enraf-Nonius B.V. 582 Theramini 2
Endomed 182 Theratouch 4.7
Endomed 484 Winner ST2 EVO
Excel Tech Ltd. EX-UL2 Winner ST4 EVO
EX-UL3 Siemens 45 38 088
EX-UL3HV 834
Ultra II 834 (EH717)
Ultra III HV 45 38 278
ISO-3 45 38 278EH719
ISO-4 45 38 328
MST-7 928-CSA
MU-3 Duodynator 829 (45 38 328 EH720)
MU-4 Stereodynator 828
Multistim Plus Sterne Medical 200 – Acu-Train III
gbo Medizintechnik AG StereodyNator (025-0-1000) Acu-Train III
GymnaUniphy N.V. phyaction 792 SNT-3
i785 200
Phyaction 787 200 Accutrain III
Duo500 200A
Phyaction 785 230
Phyaction 787 Accutrain V
Phyaction I ACU 5
I.T.E Power Supply FDA 5105 ACU TRAIN V
InterEST 220 ACU-5
ITO Co., Ltd. EU-920 Acu-Train
EU-940 Acu-Train III
Medelco Inc Vectordyne 1 ACU-TRAIN III (200)
Vectordyne I ACU-Train V
Vectordyne II MPI
4 Myo-Train 16
MST 4 MYO-TRAIN V
Physio-Med II Nero-Train 111
Vectoroyne 2 Neuro Train II
Vectrodyne 1 Neurotrain II
Vectrodyne 2 Neuro-Train II
Medical-Dental Electrostim 180-2 Neuro-Train III
Medi-Man Rehabilitation 12303 Neurotrain SNT-3
13303 Neuro-Train V
Medisound International 12303 SNT
Medi-stim, INC. 12303 Sys*Stim 207A
Med-Ortho Design & Manufacturing Ltd 24975 The Vitality Depot BLD AP439
Metron Medical Australia Pty Ltd. AV170 Therasonics 955 (112)
V270 TRH Services N/A
VU270 Williams Healthcare Systems 6200
Vector-Pulse 6200 (ZC2)
VP 270 ZC2
VP100 4200
MS100 4500
MS170 Zimmer Elektromedizin Corp. Endo
Multistim (MS100) ZMI Electronics, Ltd. 140500
Vectorpulse 2 100500A
VectorSurge 5 100500C

 

Written By: Greg Kishimoto

Edited By: Tyler Hasenpflug CET