Nu-Tek Rehab Series User manual

REDEFINING | PHYSIOTHERAPY | FITNESS | MEDICAL
physiosupplies.co.uk
The Warehouse Beck Bank West, Pinchbeck, Spalding, Lincolnshire, PE11 3QN Phone: [phone] Email: [e-mail]
Interferential Unit
Power Supply: AC100-240V 47/63 Hz
Number of Channels: 2 independently controllable
IF Carrier Frequency: 2 - 10 kHz
Frequency: IF 1-200 Hz, Biphasic/NMS 1-250 Hz, HV
1-120 Hz, MCR 0.1-1000 Hz
Current Amplitude (peak): IF Russian 100mA, Biphasic/NMS 200mA
HV 500 V, MCR 1000uA, DC 80mA
Dimensions: 285mm (L) x 197mm (W) x 153mm (H)
Weight: 2kg
Certification: FDA Clearance, EU MDD, CFDA, TGA, CMD-
CAS, Russian approved
Safety Tests: IEC 60601-1, IEC 60601 2-5, IEC 60601-2-10
Electrical Safety Class: Class I, Type BF
Optional Accessories:
NUTROLLEY Nu-Tek Trolley
NUBATTERY Nu-Tek Baery Pack
Two Channel Electrotherapy
Nu-Tek® Stim Rehab2 − MT2200
Features & Benefits:
• Provided with the most common currents: 4-pole IF, 2-pole
IF (Premode), NMS,Russian, Biphasic (TENS), Hi-Voltage
(HV), Microcurrent (MCR), DC: Galvanic, Faradic,
Diadynamic (DF, MF, CP, CP-ISO, LP, RS)
• Touch screen for easy operation
• 2-channel simultaneous monitoring
• 42 pre-set programs and 80 custom programs provided
Standard Accessories:
Specifications:
Screen Shot:
Optional
Nu-Tek Trolley
NUPOWERCABLE Nu-Tek Power Cable
User Manual
NUELECRUB6090 Rubber Electrodes - 60 x 90mm (Pair)
NUELECRUB70110 Rubber Electrodes - 70 x 110mm (Pair)
NUSPOENV70100 Envelope Sponges - 70 x 100mm (Pair)
NUSPOENV80120 Envelope Sponges - 80 x 120mm (Pair)
ACF35050 AllCare Electrodes - 50 x 50mm Square (x4)
- Self Adhesive
ACF35090 AllCare Electrodes - 50 x 90mm Rectangle (x4)
- Self Adhesive
NUSTRAP751200 Nu-Tek Straps - 75 x 1200mm
NUSTRAP75600 Nu-Tek Straps - 75 x 600mm
NULEADSTIMGY Nu-Tek Stim Leads - Grey
NULEADSTIMBU Nu-Tek Stim Leads - Blue
Code: Description:
NUSTIM Nu-Tek® Stim Rehab2 - MT2200

0197
Rehab – Series
USER MANUAL
www.nutekmedical.com

Declaration of conformity:
Shenzhen Dongdixin Technology Co.,LTD.declares that the ComboRehab-Series,
StimRehab-Series and UltraRehab-Series complies with following normative documents:
IEC60601-1,IEC60601-1-2,IEC60601-2-10,IEC60601-2-5,ISO7010
IEC61689,ISO14971,ISO10993-1,ISO10993-5,ISO10993-10
Complies with MDD 93/42/EEC and Amended by
directive 2007/47/EC requirements
2
Rehab-SeriesRehab-Series

This manual has been written for the users of the Rehab-Series include ComboRehab-
Series, StimRehab- Series and UltraRehab-Series. It contains general information on the
operation, precautionary practices,and maintenance information. In order to maximize its
use, efficiency,and the life of the system, please read this manual thoroughly and become
familiar with the controls, as well as the accessories before operating the system.
This device is designed to only be used by or under the supervision of persons using the
medical device in the course of their work and in the framework of a professional healthcare
activity, who understand the benefits and limitations of electrotherapy and ultrasound
therapy.
WARNING (USA only):
U.S.A. Federal Law restricts these devices to sale by, or on the orderof, a physician or
licensed practitioner. This device should be used only under the continued supervision of a
physician or licensed practitioner.
Specifications put forth in this manual were in effect at the time of publication. However,
owing to manufacturer her policy of continual improvement, changes to these specifications
may be made at any time without obligation on the part of manufacturer.
The Rehab-Series is a family of products for physical therapy, the Rehab-Series offers the
practitioner a wide range of treatment options. The devices share an identical control panel
equipped with a full colour touch panel means treatment setup has never been easier. A few
simple key presses are all you need to quickstart a treatment. The User Interface intuitively
groups and displays all the options for a modality setup on the large touch screen to ensure
that treatment parameters can easily be selected and adjusted. The devices are mains pow-
ered and can optionally be equipped with a battery for mains independent operation. The
family comprises the products described below.
1. Foreword
2. Product Description
1.1 Intended User/Operator
3
Rehab-Series

StimRehab
The StimRehab is equipped with two or four completely identical electrotherapy channels.
The electrotherapy channels can be used in combination (linked) or totally independent. A
comprehensive set of current waveforms is available, targeting both pain management and
muscle stimulation applications.
Protocols can run on linked or independent channels. With independent channels two or
four different protocols can be performed simultaneously.
UltraRehab
The UltraRehab is an ultrasound therapy device. The device provides two positions for
attachment of an ultrasound applicator. Depending on the device configuration ordered,
the UltraRehab comes with an applicator with a large contact area, an applicator with a
small contact area or with both applicators. The applicators can operate in continuous or
pulsed mode at an ultrasound frequency of 1 MHz or 3 MHz. The lower frequency (1 MHz)
penetrates deeper than a higher frequency (3 MHz), thus the practitioner can decide which
frequency to use according to the condition and depth to be treated. Contact control sus-
pends the application of ultrasonic energy when acoustical contact with the treatment area
becomes insufficient. The applicators are suitable for subaqual treatments.
ComboRehab
The ComboRehab is a combination device, combining the functions of the StimRehab and
the UltraRehab in a single device. With the ComboRehab the simultaneous application of
ultrasound and electrotherapy (combination therapy) is also possible. The remaining elec-
trotherapy channel can then be used independently.
VAM200
Electrotherapy can be applied through standard or vacuum electrodes. With vacuum elec-
trodes the VAM200 generates the vacuum through which the vacuum electrodes are
attached to the patient. The device is placed beneath the StimRehab or ComboRehab, from
which its power is derived and through which it is also operated.
MTM200
The MTM200 is a two channel electrotherapy module intended to upgrade the StimRehab
and ComboRehab to Four Channel Electrotherapy or Combination Therapy Systems. This
4
Rehab-Series

module is designed for use with the StimRehab or ComboRehab only.
EMG200
The EMG200 is designed for use with the StimRehab and the ComboRehab. With EMG
electrodes the EMG200 generates the sEMG (Surface Electromyography) , ETS (Surface
Electromyography with Triggered Stimulation) through which the EMG electrodes are
attached to the patient.
BTM200
The BTM200 Battery Module is designed for use with the Rehab-Series systems to create a
battery powered Therapy System. No additional Software is required for the Module as the
System automatically recognizes its presence and activates all necessary software inherent
in the System.
CT2200
(two channels electrotherapy,
ultrasound and combo)
CT2201
（two channels electrotherapy,
ultrasound and combo+vacuum
module）
CT2202
（two channels electrotherapy,
ultrasound and combo+EMG
module）
Mainframe
CT2200
Mainframe
CT2200
Mainframe
CT2200
Mainframe
CT2200
CT2203
（two channels electrotherapy,
ultrasound and combo+battery
module）
ComboRehab²
ComboRehab² Vac
ComboRehab² Bio
ComboRehab² Plus
Name Model Mainframe Vacuum module
（VAM200）
EMG module
（EMG200）
Battery module
(BTM200)
5
Rehab-Series

Mainframe
CT2200
Mainframe
CT2200
Mainframe
CT2200
Mainframe
CT2400
（CT2200
+MTM200）
Mainframe
CT2400
（CT2200
+MTM200）
Mainframe
CT2400
（CT2200
+MTM200）
Mainframe
CT2400
（CT2200
+MTM200）
CT2204
（two channels electrotherapy,
ultrasound and combo+vacuum
module +EMG module）
CT2205
（two channels electrotherapy,
ultrasound andcombo+vacuum
module+ battery module）
CT2206
（two channels electrotherapy,
ultrasound and combo+battery
module + EMG module）
CT2400
（four channels electrotherapy,
ultrasound and combo）
Name
ComboRehab² VB
ComboRehab² Vac
Plus
ComboRehab² Bio
Plus
Model Mainframe Vacuum module
（VAM200）
EMG module
（EMG200）
Battery module
(BTM200)
StimRehab²
CT2401
（four channels electrotherapy,
ultrasound and combo+vacuum
module）
CT2402
（four channels electrotherapy,
ultrasound and combo+EMG
module）
CT2403
（four channels electrotherapy,
ultrasound and combo+battery
module）
Mainframe
MT2200
MT2000
（two channels electrotherapy）
6
ComboRehab
4
ComboRehab Plus
4
ComboRehab Bio
4
ComboRehab Vac
4
Rehab-Series

Mainframe
MT2400
（MT2200
+MTM200）
Mainframe
MT2400
（MT2200
+MTM200）
Name
Stim Rehab² Vac
Stim Rehab² Bio
Stim Rehab² Plus
Stim Rehab² VB
Model Mainframe Vacuum module
（VAM200）
EMG module
（EMG200）
Battery module
(BTM200)
Stim Rehab² Vac
Stim Rehab² Bio
Plus
Mainframe
MT2200
Mainframe
MT2200
Mainframe
MT2200
Mainframe
MT2200
MT2201
（two channels electrotherapy
+vacuum module）
MT2202
（two channels electrotherapy
+EMG module）
MT2203
（two channels electrotherapy
+battery module）
MT2204
（two channels electrotherapy
+vacuum module+EMG
module）
MT2205
（two channels electrotherapy
+vacuum module+battery
module）
MT2206
（two channels electrotherapy
+battery module+EMG
module）
MT2400
（four channels electrotherapy）
Mainframe
MT2200
Mainframe
MT2200
MT2401
（four channels
electrotherapy +vacuum module）
7
Stim Rehab Vac
4
Stim Rehab
4
Rehab-Series

Mainframe
MT2400
（MT2200
+MTM200）
Mainframe
MT2400
（MT2200
+MTM200）
Name
UltraRehab
UltraRehab Plus
1RWH5HPDUNV´¥µPHDQVWKDWWKHGHYLFHLVHTXLSSHGZLWKWKHVHPRGXOH
Model Mainframe Vacuum module
（VAM200）
EMG module
（EMG200）
Battery module
(BTM200)
Mainframe
UT2200
Mainframe
UT2200
MT2402
（four channels
electrotherapy +EMG module）
MT2403
（four channels
electrotherapy +battery module）
UT2200
（two channels ultrasound）
UT2201
（two channels ultrasound
+battery module）
8
Stim Rehab Plus
4
Stim Rehab Bio
4
Rehab-Series

In this section general Warnings and Precautions are listed, that you should be aware of
when using the Rehab-Series. See also chapter 4.1 for Warnings and Precautions that are
application specific.
WARNING:
Federal law (USA only) restricts this device to sale by, or on the order of, a physician
or licensed practitioner. This device should be used only under the continued supervi-
sion of a physician or licensed practitioner.
Make certain that the unit is electrically grounded by connecting only to a grounded
electrical service receptacle conforming to the applicable national and local electrical
codes.
Do not operate the unit in an environment of short-wave or micro-wave diathermy.
The device is designed for indoor use only.It is prohibited to use the device in a loca-
tion where explosion or water intrusion risk are present and in dusty or humid
environment.It is prohibited to use the device in spaces where flammable anaesthetics
oxidizing gases(O2,N2O) and other flammable gases or vapors are present.
This device should be kept out of the reach of children.
Place the device out of direct sunlight and strong electromagnetic fields of surrounding
devices(diathermy,X-rays,mobile phones and other radio-frequence equipment) to
prevent unwanted interference.If unwanted interference occurs,place the device farther
from the source of interference or contact the Nu-Tek authoried service.
Before administering any treatment to a patient you should become acquainted with
the operating procedures for each mode of treatment available, as well as the indica-
tions, contraindications, warnings and precautions. Consult other resources for addi-
tional information regarding the application of electrotherapy and Ultrasound.
No modification of this equipment is allowed! Do not try to open or remove the
protective covers or disassembly the device for any reason.There is a danger of electric
shock and serious injury.All service actions must be done by an authorized Nu-Tek
service only;otherwise Nu-Tek bear no responsibility for further operation of the
device.
Never use the accessories connector and other connectors to plug in anything else
except transducers and cables sold by the manufacturer as replacement parts for inter-
nal components.There is a serious risk of electric shock and serious damage to the
device！
This device is not designed to be use in an MRI Environment and should be removed
prior to MRI exposure.
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3. Precautionary Instructions
9
Rehab-Series

CAUTION:
Keep yourself informed of the contraindications.
Read the User’s Manual carefully and become familiar with all its safety requirements,
operating procedures and maintenance instruction prior to use of the device.It is pro-
hibited to use the device and its accessory in any manner that is not in accordance with
the User’s Manual. Know the limitations and hazards associated with using any electri-
cal stimulation device. Observe the precautionary and operational stickers placed on
the unit.
DO NOT use sharp objects such as a pencil point or ballpoint pen to operate the but-
tons on the control panel.
Before each therapy check carefully the device and its accessories
(cables,connectors,electrodes,ultrasound heads,controls,touch screen) for any
mechanical, functional or other damage.If any faults or anomalies in the device func-
tion are found, stop using the device immediately .
Handle the ultrasound applicator with care. Inappropriate handling of the ultrasound
applicator may adversely affect its characteristics.
Inspect the ultrasound applicator for cracks which may allow the ingress of conductive
fluid before each use.
This unit should be operated in temperatures between 10 °C and 40 °C (50 °F and
104 °F), with a Relative Humidity ranging from 30%-85% non condensing.
Do not expose the unit to direct sunlight, heat radiated from a heat radiator, excessive
amounts of dust, moisture, vibrations and mechanical shocks.
The device has applied parts of the BF (Body Floating) type-i.e. parts which come
into direct physical contact with the patient during normal device use.This includes the
electrodes for electrotherapy and applicators for ultrasound therapy.
The device heats up during operation and therefore must not be located near devices
that heat up or produce heat.The device is cooled by forced air circulation.The cooling
vents are located on the rear and side panel of the device and they must not be
covered.When placing the device,leave at least 10 cm of space behind the rear panel.
It is prohibited to place any objects that produce heat or objects that contain water or
other liquid on the device. If in the case of ingress of liquids, unplug the unit from the
mains supply and have it checked by an authorized person (see the paragraph on
maintenance).
Before administering any treatment to a patient you should become acquainted with
the operating procedures for each mode of treatment available, as well as the indica-
tions, contra-indications, warnings and precautions. Consult other resources for addi-
tional information regarding the application of electrotherapy and ultrasound therapy.
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10
Rehab-Series

The device is designed to only be used by or under the supervision of persons using
the medical device in the course of their work and in the framework of a professional
healthcare activity, who understand the benefits and limitations of electrotherapy and
ultrasound therapy. I.e.“professional users”.
Do not use this device on patients who have a cardiac pacemaker, implanted defibril-
lator, or other implanted metallic or electronic device, because this may cause electric
shock, burns, electrical interference, or death.
Do not use this device on patients whose pain syndromes are undiagnosed.
Do not apply stimulation over the patient’s neck because this could cause severe
muscle spasms resulting in closure of the airway, difficulty in breathing, or adverse
effects on heart rhythm or blood pressure;
Do not apply stimulation across the patient’s chest, because the introduction of electri-
cal current into the chest may cause rhythm disturbances to the patient’s heart, which
could be lethal;
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4.1 Intended Use Electrotherapy
4.1.1 Pain Management
Pain Management is the use of electrical stimulation for pain relief.
4.1.1.1 Indications Pain Management
Symptomatic relief and management of chronic, intractable pain. Management of pain
associated with post- traumatic or postoperative conditions.
4.1.1.2 Contra-indications Pain Management
Do not use this device on patients whose pain syndromes are undiagnosed.
4.1.1.3 Warnings Pain Management
4. Intended Use
11
Rehab-Series

Do not apply stimulation over open woundsor rashes, or over swollen, red, infected,
or inflamed areas or skin eruptions (e.g., phlebitis, thrombophlebitis, varicose veins);
Do not apply stimulation over, or in proximity to, cancerous lesions;
Do not apply stimulation in the presence of electronic monitoring equipment (e.g.,
cardiac monitors, ECG alarms), which may notoperate properly when the electrical
stimulation device is in use;
Do not apply stimulation when the patient is in the bath or shower;
Do not apply stimulation while the patient is sleeping;
Do not apply stimulation while the patient is driving, operating machinery, or during
any activity in which electrical stimulation can put the patient at risk of injury.
Consult with the patient’s physician beforeusing this device, because the device may
cause lethal rhythm disturbances to the heart in susceptible individuals;
Apply stimulation only to normal,intact, clean, healthy skin.
See also chapter 3, Precautionary Instructions, for general Warnings and Precautions.
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TENS is not effective for pain of central origin, including headache;
TENS is not a substitute for pain medications and other pain management therapies;
TENS devices have no curative value;
TENS is a symptomatic treatment and, as such, suppresses the sensation of pain that
would otherwise serve as a protective mechanism;
Effectiveness is highly dependent upon patient selection by a practitioner qualified in
the management of pain patients;
The long-term effects of electrical stimulation are unknown;
Since the effects of stimulation of the brain are unknown, stimulation should not be
applied across the head, and electrodes should not be placed on opposite sides of
The safety of electrical stimulation during pregnancy has not been established;
Some patients may experience skin irritation orhypersensitivity dueto the electrical
stimulation or electrical conductive medium (gel);
Patients with suspected or diagnosed heart disease should follow precautions recom-
mended by their physicians;
Patients with suspected or diagnosed epilepsy should follow precautions recom-
mended by their physicians;
Use caution when the patient has a tendency to bleed internally, such as following an
injury or fracture;
Use caution following recent surgical procedures when stimulation may disrupt the
patient’s healing process;
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4.1.1.4 Precautions Pain Management
Rehab-Series

Use caution if stimulation is applied over the menstruating or pregnant uterus;
Use caution if stimulation is applied over areas of skin that lack normal sensation.
Isolated cases of skin rash may occur at the site of electrode placement following
long-term applications. The irritation may be reduced by use of an alternate conduc-
tive medium or an alternative electrode placement.
See also chapter 3, Precautionary Instructions, for general Warnings and Precautions.
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13
Patients may experience skin irritation and burns beneath the stimulation electrodes
applied to the skin;
Patients may experience headache and other painful sensations during or following
the application of electrical stimulation near the eyes and to the head and face;
Patients should stop using the device and should consult with their physicians if they
experience adverse reactions from the device.
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Relaxation of muscle spasms
Prevention or retardation of disuse atrophy
Increasing local blood circulation
Muscle re-education
Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis
Maintaining or increasing range of motion
increasing the stimulated muscle’s strength
increasing the stimulated muscle’s resistance to fatigue
Dysphagia
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4.1.1.5 Adverse Effects Pain Management
Add:
4.1.2 Muscle Stimulation
4.1.2.1 Indications Muscle Stimulation
4.1.1.6 Current Waveforms Pain Management
For pain management the following current waveforms are recommended 4.1.3.1, 4.1.3.2,
4.1.3.3, 4.1.3.5, 4.1.3.6, 4.1.3.7, 4.1.3.9, 4.1.3.10.
Rehab-Series

Do not use this device on patients who have a cardiac pacemaker, implanted defibril-
lator, or other implanted metallic or electronic device, because this may cause electric
shock, burns, electrical interference, or death.
The long-term effects of electrical stimulation are unknown;
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If you are in the care of a physician, consult with your physician before using this
device;
Do not apply stimulation over your neck because this could cause severe muscle
spasms resulting in closure of your airway, difficulty in breathing, or adverse effects on
heart rhythm or blood pressure;
Do not apply stimulation across your chest because the introduction of electrical cur-
rent into the chest may cause rhythm disturbances to your heart, which could be lethal;
Do not apply stimulation over painful areas. If you have painful areas, you should con-
sult with your physician before using this device;
Do not apply stimulation over open woundsor rashes, or over swollen, red, infected,
or inflamed areas or skin eruptions (e.g., phlebitis, thrombophlebitis, varicose veins);
Do not apply stimulation over, or in proximity to, cancerous lesions;
Do not apply stimulation in the presence of electronic monitoring equipment (e.g.,
cardiac monitors, ECG alarms), which may notoperate properly when the electrical
stimulation device is in use;
Do not apply stimulation whenin the bath or shower;
Do not apply stimulation while sleeping;
Do not apply stimulation while driving, operating machinery, or during any activity in
which electrical stimulation canput you at risk of injury;
Do not use the device on children, if it has not been evaluated for pediatric use;
Consult with your physician before using this device, because the device may cause
lethal rhythm disturbances to the heart in susceptible individuals;
Apply stimulation only to normal,intact, clean, healthy skin.
See also chapter 3, Precautionary Instructions, for general Warnings and Precautions.
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4.1.2.2 Contra-indications Muscle Stimulation
4.1.2.3 Warnings Muscle Stimulation
4.1.2.4 Precautions Muscle Stimulation
Rehab-Series

For muscle stimulation the following current waveforms are recommended 4.1.3.2,
4.1.3.3, 4.1.3.4, 4.1.3.8, 4.1.3.10
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You may experience skin irritation and burns beneath the stimulation electrodes
applied to your skin;
You may experience headache and other painful sensations during or following the
application of electrical stimulation near your eyes and toyour head and face;
You should stop using the device and should consult with your physician if you experi-
ence adverse reactions from the device.
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15
Since the effects of stimulation of the brain are unknown, stimulation should not be
applied across your head, and electrodes should not be placed on opposite sides of
your head;
The safety of electrical stimulation during pregnancy has not been established;
You may experience skin irritation or hypersensitivity due to the electrical stimulation
or electrical conductive medium (gel);
If you have suspected or diagnosed heart disease, you should follow precautions
recommended by your physician;
If you have suspected or diagnosed epilepsy, you should follow precautions recom-
mended by your physician.
Use caution if you have a tendency to bleed internally, such as following an injury or
fracture;
Consult with your physician prior to using the device after a recent surgical procedure,
because stimulation may disrupt the healing process;
Use caution if stimulation is applied over the menstruating or pregnant uterus;
Use caution if stimulation is applied over areas of skin that lack normal sensation;
Keep this device out of the reach of children;
Use this device only with the leads, electrodes, and accessories recommended by the
manufacturer.
Some patients may experience skin irritation or hypersensitivity due to electrical stimu-
lation or electrical conductive medium. The irritation can usually be reduced by using
an alternative conductive medium, or alternate electrode placement.
See also chapter 3, Precautionary Instructions, for general Warnings and Precautions.
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4.1.2.5 Adverse Effects Muscle Stimulation
4.1.2.6 Current Waveforms Muscle Stimulation
Rehab-Series

These waveforms are often applied in combination with a surge program, which consists of
a sequence of exercise and rest periods. Two options are available here:
Interferential Current is a medium frequency waveform. Current is distributed through of two
channels (four electrodes). The currents cross each other in the body at the area requiring
treatment. The two currents interfere with each other at this crossing point, resulting in a
modulation of the intensity (the current intensity increases and decreases at a regular
frequency).
Reciprocal application, where stimulation alternates between agonists and antago-
nists. This is accomplished through asynchronous stimulation over two current chan-
nels with an appropriate delay between the two channels.
Co-contract application, where two channels operate synchronously to co-contract
agonist and antagonist or different sections of a larger muscle group.
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16
CC — Constant current output mode.
CV — Constant voltage output mode.
F.M. — Frequency Modulation
Burst— Burst Frequency
Freq. — Frequency
C.F — Carrier Frequency
Duty — Duty Cycle
Beat H. — Sweep High Beat Frequency
Beat L . — Sweep Low Beat Frequency
A.M. — Amplitude Modulation
P.Dur. — Phase Duration
Cycle— Cycle time
Ramp— Ramp time
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4.1.3 Description Current Waveforms
Remark:
4.1.3.1 IF-4P：IFC(Interferential) Traditional (4 Pole)
Rehab-Series

Premodulated Current is a medium frequency waveform. Current comes out of one channel
(two electrodes). The current intensity is modulated: it increases and decreases at a regular
frequency (the Amplitude Modulation Frequency).
Carrier frequency: Carrier frequency is the base frequency of the alternating current.
Beat Frequency: The frequency at which the amplitude is modulated. This is the effective
therapeutic frequency.
Vector-Auto: Vector-Auto is a form of amplitude modulation and is a percentage of the
interferential amplitude (intensity) and will decrease from its maximum level over 6 seconds.
Vector-Manual：Vector-Manual is a form of amplitude modulation. When Vector-Manual
set to a different Angle, the output intensities of two channels are different. The rhythmical
varying of the current amplitude of each channel produces the perceived movement of the
interferential field by the patient.
17
4.1.3.2 IFC(Interferential) Premodulated (2 Pole)
Parameters:
Carrier frequency: Carrier frequency is the base frequency of the alternating current.
Beat Frequency: The frequency at which the amplitude is modulated. This is the effective
therapeutic frequency.
Cycle Time: refers to the time that the current is On and Off (in seconds). Example: for a
Cycle Time of 10/50, the current will be flowing for 10 seconds and resting for 50 seconds.
Ramp Time: the time that the current will take to increase to the set intensity level. Ramps
occur at the beginning and ending of a timed On cycle.
Parameters:
The Asymmetrical Biphasic and the Symmetrical Biphasic waveform are often used in TENS
(Transcutaneous Electrical Nerve Stimulation) applications. The TENS has a short pulse
duration. It is capable of strong stimulation of the nerve fibers in the skin as well as of muscle
tissue. Because of its short pulse, the patient typically tolerates the current well, even at rela-
tively high intensities. The Alternating Rectangular waveform is an interrupted biphasic
current with a rectangular pulse shape. This waveform is commonly used as a pain manage-
ment application.
4.1.3.3 Biphasic （TENS）
Rehab-Series

18
Russian Current is a rectangle waveform, delivered in bursts or series of pulses. This method
was claimed by its author (Kots) to produce maximal muscle strengthening effects without
significant discomfort to the patient.
4.1.3.4 Russian Stimulation
The High Volt waveform has a very brief pulse duration characterized by 2 distinct peaks
delivered at high voltage. The waveform is monophasic (current flows in one direction
only).The high voltage causes a decreased skin resistance making the current comfortable
and easy to tolerate. The very short pulse duration followed by a very long interpulse interval
eliminates the formation of any appreciable chemical or thermal effects in the tissue.
4.1.3.5 High Volt
Phase Duration: expressed in µs, is the elapsed time from the beginning to the end of the
initial pulse phase.
Frequency: In a pulsed current the Frequency refers to the number of pulses that occur in a
one second period of time and is denoted as in Hz or Pulses Per Second (pps).
Frequency Modulation: expressed in Hz, defines a variable frequency range that is summed
to the Pulse frequency i.e when the Pulse frequency is set to 80 Hz and the Frequency modu-
lation is set to 40 Hz, the final frequency will vary from 80 – 120 Hz.
Amplitude Modulation: Rhythmical fluctuation of the intensity to prevent accommodation.
Burst Frequency: expressed in Hz or bps, defines the repetition rate of bursts of pulses. A
Burst (an interrupted train) is a finite series of pulses that are delivered at a specific
frequency and are separated by interburst intervals.
Parameters:
Carrier Frequency: Carrier frequency is the base frequency of the alternating current.
Frequency: In a pulsed current the Frequency refers to the number of pulses that occur in a
one second period of time and is denoted as in Hz or Pulses Per Second (pps).
Duty: The percentage of the total treatment time that the current is actually flowing.
Cycle Time: refers to the time that the current is On and Off (in seconds). Example: for a
Cycle Time of 10/50, the current will be flowing for 10 seconds and resting for 50 seconds.
Ramp: The time that the current will take to increase to the set intensity level. Ramps occur
at the beginning and ending of a timed On cycle.
Parameters:
Rehab-Series

19
Microcurrent is a monophasic waveform of very low intensity. The literature reports benefi-
cial effects of this waveform in the treatment of wounds. The physiological working mecha-
nism of this effect is as yet not clearly understood. It is thought to stimulate tissue healing by
stimulating the 'current of injury', a current which naturally occurs in healing tissue.
4.1.3.6 Micro Current
The High Volt waveform is frequently used to increase local blood circulation and relax
muscles in spasm.
Frequency: In a pulsed current the Frequency refers to the number of pulses that occur in a
one second period of time and is denoted as in Hz or Pulses Per Second (pps).
Polarity: This refers to the polarity (+/-) of the red lead wire; connect the lead wire to the
active electrode.
Cycle Time: refers to the time that the current is On and Off (in seconds). Example: for a
Cycle Time of 10/50, the current will be flowing for 10 seconds and resting for 50 seconds.
Ramp: The time that the current will take to increase to the set intensity level. Ramps occur
at the beginning and ending of a timed On cycle.
Frequency: In a pulsed current the Frequency refers to the number of pulses that occur in a
one second period of time and is denoted as in Hz or Pulses Per Second (pps).
Polarity: This refers to the polarity (+/-) of the red lead wire; connect the lead wire to the
active electrode.
Parameters:
It is a monophasic waveform with a phase duration of 2 ms and a pause of 5 ms resulting
in a frequency of approximately 143 Hz.
4.1.3.7 Trabert
Polarity: This refers to the polarity (+/-) of the red lead wire; connect the lead wire to the
active electrode.
Parameters:
Rehab-Series