INTELECT LEGEND Series STIM Model 2S and 4S User Manual

Table of Contents Foreword...2 Product Description... 2 Precautionary Instructions... 3-4 Installation... 4-5 Package Contents... 5 Optional Accessories...6 Indications/Contraindications, Adverse Effects for Electrical Stimulation... 6-9 User Maintenance... 9 Technical Maintenance... 10 Unit Orientation... 10-13 Pain Management... 14 Interferential... 14-16 Premodulated... 17 Muscle Contraction... 18 High Volt... 18-19 Russian... 19 Miscellaneous... 20 Technical Specifications... 21-22 Warranty... 23-24

Foreword This manual has been written for the owners and operators of the Intelect® Legend Stim, models 2S and 4S. It contains general instructions on operation, precautionary practices, maintenance and parts information. In order to maximize use, efficiency and the life of your unit, please read this manual thoroughly and become familiar with the controls as well as the accessories before operating the unit. Specifications put forth in this manual were in effect at the time of publication. However, owing to Chattanooga Group's policy of continual improvement, changes to these specifications may be made at any time without obligation on the part of Chattanooga Group.

Product Description With the same legendary performance, quality and value that has made the Intelect® name respected world-wide, the Intelect® Legend Stim offers the convenience of a multi-waveform electrotherapy system with the advantage of easy-touse 1-2-Go software. Features include Interferential, Premodulated, High Volt and Russian waveforms. Other features include our 1-2-Go Software, a clear, backlit LCD display and programmable power-up presets. Models 2S and 4S of the Intelect Legend Stim are prescription devices used under the supervision or by the order of a physician or other licensed healthcare provider.

©2003 Encore Medical Corporation or its affiliates, Austin, Texas, USA. Any use of editorial, pictorial or layout composition of this publication without expressed written consent from the Chattanooga Group of Encore Medical, L.P. is strictly prohibited. This publication was written, illustrated and prepared for print by the Chattanooga Group of Encore Medical, L.P. 2

INTELECT LEGEND STIM USER MANUAL

Precautionary Instructions 1. CAUTION:

Read, understand and practice the precautionary and operating instructions. Know the limitations and hazards associated with using any electrical stimulation device. Observe the precautionary and operational decals placed on the unit.

2. CAUTION:

Do not operate the Intelect® Legend Stim when connected to any unit other than Chattanooga Group devices. Do not operate the unit in an environment of short-wave diathermy use.

3. WARNING: Federal law 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 supervision of a physician or licensed practitioner. 4. CAUTION:

This unit generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to other devices in the vicinity. However, there is no guarantee that interference will not occur in a particular installation. Harmful interference to other devices can be determined by turning this unit on and off or trying to correct the interference using one or more of the following: Reorient or relocate the receiving device, increase the separation between the equipment, connect the unit to an outlet on a different circuit from that to which the other device(s) are connected and/or consult the factory field service technician for help.

5. CAUTION:

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous exposure to ultrasonic energy.

6. CAUTION:

This unit is not designed to prevent the ingress of water or liquids. Ingress of water or liquids could cause malfunction of internal components of the system and therefore create a risk of injury to the patient.

7. CAUTION:

DO NOT use sharp objects such as a pencil point or ballpoint pen to operate the buttons on the control panel as damage may result.

8. WARNING: Equipment not suitable for use in the presence of flammable anesthetics mixture with air, oxygen, or nitrous oxide. The warning symbol for this hazard is prominently displayed on the cabinet. INTELECT LEGEND STIM USER MANUAL

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9. WARNING: Keep electrodes separated during treatment. Electrodes in contact with each other could result in improper stimulation or skin burns. 10. WARNING: For continued protection against fire hazard, replace fuses only with ones of the same type and rating. 11. WARNING: 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. 12. WARNING: This device should be kept out of the reach of children. 13. WARNING: Care must be taken when operating this equipment around other equipment. Potential electromagnetic or other interference could occur to this or to the other equipment. Try to minimize this interference by not using other equipment in conjunction with it. 14. CAUTION:

This unit should be operated, transported and stored in temperatures between 59° F and 104° F (15° C and 40° C), with Relative Humidity ranging from 30%- 60%.

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 indications, contraindications, warnings and precautions. Consult other resources for additional information regarding the application of electrotherapy.

Installation Initial Setup Instructions Remove the Intelect® Legend Stim unit and any additional items ordered from the carton and inspect for damage that may have occurred during shipment. Check the voltage rating on the serial decal located on the bottom of the unit. Plug the system power supply in to a 100 Volt to 220-240 Volt AC outlet, as required.

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INTELECT LEGEND STIM USER MANUAL

CAUTION • DO NOT attempt to use Direct Current (DC). • DO NOT place unit in a location where the power cord could be tripped over or pulled out during treatment. • DO NOT attempt to use the unit if it is not properly grounded.

Package Contents Standard Accessories The following accessories are included with your Intelect® Legend Stim: Legend Stim 2S 12213 72853 72852 10648 78281

Lead, 120" Electrodes, Carbonflex, 3" Round, Red Electrodes, Carbonflex, 3" Round, Black Nylatex®, 2-1/2" x 24", Sewn Operator's Manual

Legend Stim 4S 12213 12214 72853 72852 10648 78281

Lead, 120" Lead, 120” Electrodes, Carbonflex, 3" Round, Red Electrodes, Carbonflex, 3" Round, Black Nylatex, 2-1/2" x 24", Sewn Operator's Manual

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Optional Accessories The following is a list of optional accessories available for the Intelect® Legend Stim: 79977 10832 10648 10828

High Volt Probe Kit Strap, Nylatex®, Long 2-1/2"x 48" Strap, Nylatex, Medium, 2-1/2"x 24" Strap, Nylatex, Short, 2-1/2"x 18"

Indications/Contraindications Adverse Effects for Electrical Stimulation Interferential and Premodulated Indications • Symptomatic relief of chronic, intractable pain • Management of pain associated with post-traumatic or postoperative conditions Contraindications • This device should not be used for symptomatic pain relief unless etiology is established or unless a pain syndrome has been diagnosed. This device should not be used on patients with demand type cardiac pacemakers. This device should not be used over cancerous lesions. • Electrode placements must be avoided that apply current to the carotid sinus region (anterior neck) or transcereberally (through the head). Warnings • The long-term effects of chronic electrical stimulation are unknown. Safety has not been established for the use of therapeutic electrical stimulation during pregnancy. • Adequate precautions should be taken when treating individuals with suspected or diagnosed heart problems, or epilepsy. • Benefits of Interferential stimulation have not been established for pain of central origin. 6

INTELECT LEGEND STIM USER MANUAL

• This device is to be used as a symptomatic treatment for pain and has no curative value. Patients should be cautioned and their activities regulated if pain is suppressed that would otherwise serve as a protective mechanism. • Electronic monitoring equipment (such as ECG monitors and ECG alarms) may not operate properly when electrical stimulation is being utilized. Precautions • 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 conductive medium or an alternative electrode placement. • Effectiveness of this treatment is dependent upon patient selection. Adverse Effects • Skin irritation and burns beneath the electrodes have been reported with the use of therapeutic electrical stimulation.

Russian and High Volt Indications • Relaxation of muscle spasms • Prevention or retardation of disuse atrophy • Increasing local blood circulation • Muscle re-education • Maintaining or increasing range of motion • Immediate postsurgical stimulation of calf muscles to prevent venous thrombosis Contraindications • This device should not be used on patients with demand type cardiac pacemakers. • This device should not be used on cancer patients. INTELECT LEGEND STIM USER MANUAL

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Warnings • The long-term effects of chronic electrical stimulation are unknown. • Safety has not been established for the use of therapeutic electrical stimulation during pregnancy. • Adequate precautions should be taken when treating individuals with suspected or diagnosed heart problems. • Adequate precautions should be taken in the cases of persons with suspected or diagnosed epilepsy. • DO NOT stimulate over the carotid sinus nerve, especially in persons with a known sensitivity to the carotid sinus reflex. • Severe spasm of the laryngeal and pharyngeal muscles may occur if the electrodes are placed over the neck or mouth. The contractions may be strong enough to cause breathing difficulty or even close the airway. • DO NOT perform therapeutic electrical stimulation transcerebrally (through the head). • Therapeutic electrical stimulation should not be applied over swollen, infected or inflamed areas of skin eruptions, (e.g., phlebitis, thrombophlebitis and varicose veins). • Use extreme caution in transthoracic application of therapeutic electrical stimulation, introduction of electrical current into the heart may cause arrhythmia. • This device should only be used under medical supervision for adjunctive therapy for the treatment of medical diseases and conditions. • This device should be kept out of the reach of children. Precautions should be observed in the presence of the following: • Following recent surgical procedures especially when muscle contractions could disrupt the healing process. • Where sensory nerve damage is present by a loss of normal skin sensation. • When there is a tendency to hemorrhage following acute trauma or fracture. • Over the menstruating uterus. • Some patients may experience skin irritation or hypersensitivity due to the electrical stimulation or the electrical conductive medium. The irritations can usually be reduced by the use of an alternate conductive medium or alternative electrode placement. 8

INTELECT LEGEND STIM USER MANUAL

Adverse Effects • Skin irritation and burns beneath the electrodes have been reported with the use of therapeutic electrical stimulation.

HAND HELD PROBE (Optional) HIGH VOLT Probe The High Volt probe is used to deliver stimulation manually. Select the High Volt waveform then simply plug the Black lead wire into the connector of the Probe. The Red lead wire from the same channel should be attached to an electrode and placed near the treatment site. The default polarity for High Volt is positive. When using this setting, the Red lead is positive and the Black lead is negative. • Select the parameters you wish to change then press the start button to begin treatment. Note: Place the ground electrode as close to the treatment site as possible where it will not interfere with placement of the active electrode; for example, do not place the ground electrode on the leg if you are treating the arm.

User Maintenance To clean, turn unit off and unplug the power supply. Clean the unit with a damp cloth. Do not use abrasive cleaners. A small amount of mild household detergent may be used, if desired. Between patient uses, patient applied parts should be wiped clean with a clean damp cloth, then use another clean cloth to clean with a hospital grade germicide. Follow germicide manufacturer directions. Some highly concentrated germicide mixtures could damage the product if not diluted in accordance with directions of the germicide manufacturer.

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Technical Maintenance No attempt should be made to disassemble the unit. Maintenance and all repairs should be made by authorized personnel only. The manufacturer will not be held responsible for the results of maintenance or repairs by unauthorized persons. To fully maintain compliance with Federal Regulation Title 21 (21 CFR), this unit must be recalibrated annually. It is recommended that all Chattanooga Group ultrasound products be returned to the factory or an authorized servicing dealer for repairs or recalibration. It is also recommended after the replacement or repair of any major component. The following items should be checked at least monthly to ensure proper operation of this unit: 1. Power cord and plug: Check to make sure the cord is not frayed, kinked or does not have torn or cut insulation. 2. Lead Wires: Check that the cables are not frayed, kinked or do not have torn or cut insulation.

Unit Orientation Operator Interface – (Pages 12-13) On the 2S: The operator interface consists of a Liquid Crystal Display (LCD) On the 4S: The operator interface consists of a Liquid Crystal Display (LCD) and three Light Emitting Diodes (LEDs). The operator is able to view Channel designation, Treatment time and Output on the LEDs and Parameter options on the LCD. The software control of the Legend Stim has been designed to be extremely user friendly. First press the treatment mode button of your choice, increase intensity and press start. The software also allows great flexibility should you desire to change parameters.

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INTELECT LEGEND STIM USER MANUAL

Operating Channels 1/2

Left Side Panel of 2S and 4S

Changing Parameters – To change parameters, use the UP/DOWN arrows to select the parameter, then press ENTER. If there are two options, pressing ENTER will toggle between those choices. If there are three or more options, pressing ENTER will display a pop-up window with the choices listed. Use the UP/DOWN arrows to choose an option and then press ENTER to accept. Enter – The UP/DOWN arrows control the Select Highlight box and the ENTER button confirms the change. Main Menu/Escape – (On Model 4S only) This button will return you to Main Menu or allow you to escape from a pop-up menu. Channel – (On Model 2S only) This button also allows you to change parameter display from Channel 1 to Channel 2. Time – The UP/DOWN arrows increase or decrease the default treatment time.

Operating Channels 3/4

Right Side Panel of 4S

Power/Intensity – The UP/DOWN arrows increase or decrease the intensity/power. Treatment Selection– There are four waveform selections, plus Ultrasound and Combo. Start – This button will start the treatment on the selected channel. Stop – This button will stop the treatment on the selected channel. Pause – This button will pause the treatment on the selected channel. Operating Channels – Model 2S of the Intelect® Legend Stim provides two channels or electrical stimulation, while Model 4S provides four channels. Stimulation Output Channels – The lead wires connect to these ports.

INTELECT LEGEND STIM USER MANUAL

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Intelect Stim 2S Parameter Display and User Panel

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INTELECT LEGEND STIM USER MANUAL

Intelect Stim 4S Parameter Display and User Panel INTELECT LEGEND STIM USER MANUAL

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Pain Management The management of post-traumatic, post-operative or chronic intractable pain associated with many areas of the body can be a difficult task. Models 2S and 4S of the Intelect® Legend Stim provide two waveforms and many parameter settings to manage pain. Two waveforms are available for Pain Management therapy: Interferential and Premodulated.

Interferential The Interferential waveform consists of two channels, each with a sinusoidal waveform; one of fixed frequency and one of variable frequency. When the four electrodes are positioned so that the two channels cross each other, the two waveforms mix within the tissue to produce a train of pulses whose frequencies and amplitude are dependent on the sweep mode, beat frequency and amplitude settings, respectively. Press the Interferential button to select this waveform.

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INTELECT LEGEND STIM USER MANUAL

Ch. Select controls the method for setting amplitude. The Both Channels mode changes intensity equally. The Channel 1 option changes ONLY channel one and the Channel 2 option ONLY changes channel two. This is helpful when you need to balance the output between channels. When you highlight Amplitude Modulation and press the ENTER button, 3 options are displayed. They are 40% Scan (default), 100% Scan and Static (no scan). Scan Percentage is the percentage of decrease from the maximum amplitude. Scan is amplitude modulation, expressed as a percentage of the amplitude. The rhythmical varying of the amplitude of each channel produces the perceived movement of the Interferential field.

Ch. Select INTELECT LEGEND STIM USER MANUAL

Amplitude Modulation/Scan Percentage 15

When you highlight Beat Frequency and press the ENTER button, 5 options are displayed. They are 1-10 Hz, 80-150 Hz (default), 1-150 Hz, Variable and Fixed. The Variable option allows you to select a Low Beat frequency from 1-200 Hz and a High Beat frequency from 1-200 Hz. To make changes in the Variable frequency, highlight VARIABLE and press the ENTER button. To change the Beat Low frequency, use the DOWN arrow to highlight Beat Low and press ENTER. Use the UP/DOWN arrows to adjust the frequency. Press ENTER to accept. Beat Low describes the lowest frequency in the range of a sweep mode. For example when using a sweep of 80-150 Hz, 80 Hz is the lowest frequency. Beat High describes the highest frequency in the range of a sweep mode. For example when using a sweep of 80-150 Hz, 150 Hz is the highest frequency. The Fixed Option, allows you to select a fixed frequency from 1-200 Hz. To make changes to the Fixed frequency, highlight FIXED and press ENTER. Use the UP/DOWN arrows to adjust frequency. Press ENTER to accept.

Beat Frequency

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Beat Low

Fixed Option INTELECT LEGEND STIM USER MANUAL

Premodulated Premodulated is an amplitude modulated sine wave. This waveform is similar to the beat frequency created by Interferential current. In some cases, Premodulated therapy provides a good alternative for Interferential treatment especially when treating areas of the body where four electrodes can not be utilized. Cycle Time parameter controls the on/off cycle time of the current. There are 2 available options, Continuous (default) and 5/5. When you highlight Beat Frequency and press the ENTER button, 5 options are displayed. They are 1-10 Hz, 80-150 Hz (default), 1-150 Hz, Variable and Fixed. Cycle Time

The Variable option allows you to select a Low Beat frequency from 1-200 Hz and a High Beat frequency from 1-200 Hz. To make changes in the Variable frequency, highlight VARIABLE and press the ENTER button. To change the Beat Low frequency, use the DOWN arrow to highlight Beat Low and press ENTER. Use the UP/DOWN arrows to adjust the frequency. Press ENTER to accept. Beat Low describes the lowest frequency in the range of a sweep mode. For example when using a sweep of 80-150 Hz, 80 Hz is the lowest frequency. Beat High describes the highest frequency in the range of a sweep mode. For example when using a sweep of 80-150 Hz, 150 Hz is the highest frequency. The Fixed Option, allows you to select a fixed frequency from 1-200 Hz. To make changes to the Fixed frequency, highlight FIXED and press ENTER. Use the UP/DOWN arrows to adjust frequency. Press ENTER to accept.

Fixed Option INTELECT LEGEND STIM USER MANUAL

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Muscle Contraction Two waveforms are available for muscle contraction therapy; Twin-Peak High Volt and Russian. The appropriate selection of a waveform for relaxing muscle spasms, increasing local circulation, re-educating muscles that have atrophied from disuse or injury, or to maintain or improve joint range of motion can be difficult. Both models 2S and 4S of the Intelect® Legend Stimprovide the needed waveforms to address these clinical problems.

High Volt High Volt stimulation has output ranges between 300 and 500 volts. True Twin-Peak High Volt is designed to deliver very short-duration pulses, which are very low in pulse charge. High Volt is available through channel 2 and 4 on the model 4S and channel 2 on the model 2S. Method gives you the option of delivering High Volt to the patient either by Pads (default) or Probe application. Polarity of the active electrode can be changed from Positive (default) to Negative by selecting POLARITY and pressing the ENTER button. When Positive (default) polarity is selected, the Red leadwire is positive polarity and the Black leadwire is negative polarity. IF YOU SELECT NEGATIVE POLARITY, the Red leadwire becomes negative polarity and the Black leadwire becomes positive polarity. Cycle Time parameter controls the on/off cycle time of the current. There are 7 available options: 5/5, 10/10, 10/20, 4/12, 10/30, 10/50 and Continuous (default).

Method

Sweep is frequency modulation of the High Volt current. When you select SWEEP and press the ENTER button, 4 options are displayed. They are Continuous (default at 100 pps), 1-10 Hz, 80-150 Hz and 1-150 Hz. The Continuous option allows you to select a continuous fixed frequency from 1-120 pps. Frequency is the number of pulses per second of the waveform. To change the Frequency select FREQUENCY and press ENTER, then use the UP or DOWN arrows to change the frequency, from 1-120 pps. 18

INTELECT LEGEND STIM USER MANUAL

Ramp controls the amount of time required to bring the stimulation up to the selected amplitude. When you select RAMP and press ENTER, 4 options are displayed. They are 0.5 seconds, 1 second, 2 seconds (default) and 5 seconds. Display provides two options of viewing output. The options are Voltage (default) and Peak Current. The ability to assess peak current can help determine tissue response, and an indication of impedance to current at the electrode skin interface.

Russian The Russian current is a 2,500 Hz sinusoidal carrier wave, interrupted to create pulse trains or "bursts." The number of bursts per second is determined by the burst frequency and the length of the bursts is determined by the duty cycle. Ramp

Mode provides three methods of treatment including Single channel application, Reciprocal application where stimulation alternates between agonists and antagonists and Co-Contract where the timing of stimulation can be coordinated through two channels to simultaneously co-contract agonist and antagonist or differing sections of a larger muscle group. Cycle Time parameter controls the on/off cycle time of the current. There are 7 available options: 5/5, 10/10, 10/20, 4/12, 10/30, 10/50 (default) and Continuous. The Burst Frequency is the number of bursts per second (bps) and the available range is 20 bps to 100 bps. Ramp controls the amount of time required to bring the stimulation up to the selected amplitude. When you press the Ramp button it will toggle between .5 seconds, 1 second, 2 seconds (default) and 5 seconds. Mode INTELECT LEGEND STIM USER MANUAL

Duty Cycle is the ratio of on time to total time of the burst and is expressed as a percentage. The options are 10%, 20%, 30%, 40% and 50% (default). 19