Longest MStim Sport LGT-232 US User Manual
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Longest MStim Sport LGT-232 US User Manual

Portable electro-stimulation therapy device
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Version 1.1 Date: 2020-08-31

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Summary of Contents for Longest MStim Sport LGT-232 US

  • Page 1 Version 1.1 Date: 2020-08-31...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Foreword ..............................2 Safety Instructions ............................. 5 EMC Guidance ............................19 Clinical Instructions ..........................27 Working Principle ............................ 29 Inspection of the Goods .......................... 30 Overview of the Unit ..........................32 MStim Sport Application .......................... 36 Operation Guidance ..........................55 Care and Maintenance ..........................

  • Page 4: Foreword

    Specifications put in this manual were in effect at the time of publication. However, owing to policy of continual improvement by Guangzhou Longest Science & Technology Co., Ltd., any changes to these specifications may be made at any time without obligation on the part of Guangzhou Longest Science & Technology Co., Ltd.

  • Page 5: Product Description

    Product Description The LGT-232(US) is a lightweight and portable multifunctional electrotherapy device that provides TENS or NMES current. Transcutaneous electrical nerve stimulation (TENS) is an electrotherapy method for treating pain by sending a specific low-frequency pulse current into the body by the skin. It developed in 1970s and it is widely used in clinic (especially in Europe and America) because of its good analgesic effect.
  • Page 6 The Portable Electro-Stimulation Therapy Device, model LGT-232(US) mainly consists of stimulator unit, charging case, electrodes and MStim Sport APP. The LGT-232(US) is generally used at a class of people who require a high degree of muscle performance, such as professional athletes, fitness or sports enthusiast, to help them to enhance muscle capacity, improve motor performance, and relieve muscle pain after exercise and so on.

  • Page 7: Safety Instructions

    Safety Instructions Symbols 1. Symbols on the medical device Symbols Explanation Manufacturer Date of manufacture Correct Disposal of This Product (Waste Electrical & Electronic Equipment) Statement: Contact the local authorities to determine the proper method of disposal of potentially bio-hazardous parts and accessories. Type BF applied part (i.e.
  • Page 8 Symbols Explanation Protected against solid foreign objects of 12.5 mm (0.5 in) diameter and greater; ° Protected against vertically falling water drops when enclosure tilted up to 15 This symbol indicates that the adapter is double insulated (Class II). This symbol is the mark that identifies the ON/OFF button. This device emits non-ionizing radiation.
  • Page 9 2. Symbols on the package Symbols Explanation This side up The transportation package must be vertical and straight up during transportation. Fragile, handle with care The product inside the packaging could be easily damaged if dropped or handled without care and attention. Keep away from rain The product package should keep out of the rain and not to store it in damp conditions.

  • Page 10: Precautionary Definitions

    Precautionary Definitions The precautionary instructions found in this section and throughout this manual are indicated by specific symbols. Understand these symbols and their definitions before operating this equipment. The definition of these symbols is as follows: Text with a “CAUTION” indicator will explain possible safety infractions that could have the potential to cause minor to moderate injury or damage to equipment.

  • Page 11: Warnings And Cautions

    NOTE: Throughout this manual, “NOTE” may be found. These Notes are helpful information to aid in the particular area or function being described. Type BF applied part (i.e. electrode) complying with IEC60601-1. Warnings and Cautions Please carefully read and understand the following warnings and cautions to ensure the safe and correct use of the LGT-232(US) and to prevent injury.
  • Page 12 this manual. Familiarity with the information included in this manual is an essential requirement to ensure efficient and optimal use of the system, to avoid dangers to persons and to the equipment, and to obtain good treatment results.  Improper installation, operation, or maintenance of the LGT-232(US) may result in malfunctions of this unit or other devices.
  • Page 13  Stimulation should not be applied over swollen, infected, or inflamed areas or skin eruptions, e.g., phlebitis, thrombophlebitis, varicose veins, etc.  Stimulation should not be applied over, or in proximity to, cancerous lesions.  Do not use this unit near the heart or chest, above the neck, on the head, around the mouth or on diseased skin.
  • Page 14  Do not use the LGT-232(US) with high frequency surgical equipments on the patient. It will cause unstable output when the unit is close to the high frequency equipments (in the same room and without shield).  Do not use electrodes with an active area of less than 25 cm² due to the risk of associated burning. Proceed systematically with caution when the density of the current is over 2 mA/ cm²...
  • Page 15  The self-adhesive electrode limited to the same person to use, do not use in another patients to prevent infection.  If the electrode loses viscosity, please replace the electrode in order to maintain good electrical properties.  Safety of the LGT-232(US) for use during pregnancy has not been established. ...
  • Page 16 mixture of the flammable anesthetic gas and oxygen or nitrous oxide.  Clean the device using a dry soft cloth. Do not use cleaning solvents or other chemical substances in order to avoid any damage.  Make sure that you end the treatment by switching off the units or by setting the intensity to 0 mA before you remove the units or the electrodes.
  • Page 17 Application in time. If the MStim Sport Application fails due to mobile phone system upgrade or other reasons, you can download the latest version of the application from the APP stores. If the problem still exists, please contact Guangzhou Longest Science & Technology Co., Ltd. for help.
  • Page 18 Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 19 -- Consult the dealer or an experienced radio/TV technician for help.  This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and 2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 20 Bluetooth SIG, Inc. and any use of such marks by Guangzhou Longest Science & Technology Co., Ltd. is under license. Communication between the main unit and the MStim Sport Application on the smart phone is via Bluetooth.

  • Page 21: Emc Guidance

    EMC Guidance The LGT-232(US) needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided. This device has been thoroughly tested and inspected to assure proper performance and operation.  The LGT-232(US) may cause radio interference or may disrupt the operation of nearby equipment, regardless of whether it is CISPR compliant or not.
  • Page 22 equipment should be observed to verify that they are operating normally.  Portable RF communications equipment (including peripherals such as antenna cables and external antennas) other than the smart phone to be used with the LGT-232(US) should be used no closer than 30 cm (12 inches) to any part of the LGT-232(US), including cables specified by the manufacturer.
  • Page 23 Guidance and manufacture’s declaration – electromagnetic emission The LGT-232(US) is intended for use in the electromagnetic environment specified below. The customer of the user of the LGT-232(US) should assure that it is used in such an environment. Electromagnetic environment – guidance Emission test Compliance The LGT-232(US) use RF energy only for its internal...
  • Page 24 Guidance and manufacture’s declaration – electromagnetic immunity The LGT-232(US) is intended for use in the electromagnetic environment specified below. The customer or the user of LGT-232(US) should assure that it is used in such an environment. Electromagnetic environment - Immunity test IEC 60601 test level Compliance level guidance...
  • Page 25 variations on 0% U ; 1 cycle and 0% U ; 1 cycle and operation during power mains power supply 70% U ; 25/30 cycles 70% U ; 25/30 cycles interruptions, it is recommended input lines Single phase: at 0° Single phase: at 0°...
  • Page 26 Guidance and manufacture’s declaration – electromagnetic immunity (Continued) The LGT-232(US) is intended for use in the electromagnetic environment specified below. The customer or the user of the LGT-232(US) should assure that it is used in such an environment. Immunity IEC 60601 test Electromagnetic environment - Compliance level test...
  • Page 27 according to the transmitter manufacturer and d is the recommended separation distance in metres (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey, should less than compliance level in each frequency range. Interference may occur in the vicinity of equipment marked with the following symbol: NOTE 1...
  • Page 28 Recommended separation distances between portable and mobile RF communications equipment and the LGT-232(US) The LGT-232(US) is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the LGT-232(US) can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the LGT-232(US) as recommended below, according to the maximum output power of the communications equipment.

  • Page 29: Clinical Instructions

    Clinical Instructions Before a treatment with the LGT-232(US), a correct examination and diagnosis should be performed. Indications for Use Portable Electro-Stimulation Therapy Device, model LGT-232(US) is used to: Stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only. Portable Electro-Stimulation Therapy Device, model LGT-232(US) in TENS mode is used for: Temporary relief of pain associated with sore and aching muscles due to strain from exercise or normal household and work activities;...

  • Page 30: Adverse Effects

    Contraindications Patients with the following disease are forbidden to use the LGT-232(US): Patient with severe heart failure or arrhythmia, and patient with cardiac demand pacemakers; Patient with venous thrombosis or thrombophlebitis; Patient who is in the acute or critical stage of important organ disease; Patient whose treatment area with bleeding tendency, metal matter or tuberculous lesions;...

  • Page 31: Working Principle

    Working Principle Communication of Mobile Phone APP and Bluetooth PWM Intensity Adjustment Bluetooth Chip Pulse Processor Electrode Generating Power AC Input Battery Current Adapter Feedback Button...

  • Page 32: Inspection Of The Goods

    Inspection of the Goods 1. Unpacking the Unit The unit is generally delivered with the packaging material supplied by the manufacturer. Proceed as follows:  Position the transport packaging so that the arrows are pointing upward.  Remove the transport packaging upward. ...
  • Page 33 Amounts Unit piece LGT-232(US) main unit Power adapter piece Charging case piece Self-adhesive electrode (Model: LGT-1200Z F5050M3): pieces 50mm×50mm (square) User manual piece Other parts of LGT-232(US) are available as accessory on demand. Visit website www.longest.cn to obtain more information.

  • Page 34: Overview Of The Unit

    Overview of the Unit 1. Nomenclature...
  • Page 35 ON/ OFF button & Indicator light: see table: Charging case indicator light: see table: meaning of main unit indicator light meaning of charging case indicator light Charging case Output socket: connect electrodes Charger connector: it can be connected Main unit: two modules. with another charging case.
  • Page 36 Table: meaning of main unit indicator light Status Indicator color Way of flashing Power off None None Bluetooth Flash at 3Hz frequency. Flash at 1Hz after Green connecting successful connection Ready Green Flash at 1Hz frequency Stimulation on ＞ 10mA Yellow Slight light (may...
  • Page 37 2. Accessories Self-adhesive electrode The part which contact with the patient is the back side of the electrode, and the material is conductive hydrogel. When using, place the electrodes on the patient's skin, and connect the snap button of the electrode to the output socket of the main unit. Before apply electrodes to the patient’s skin, you should use alcohol or soapy water to clean the skin first.

  • Page 38: Mstim Sport Application

    MStim Sport Application The LGT-232(US) can only be used with the software provided by our company.  Name of the software: MStim Sport  Release Version: 1  Software operating environment: Android 4.3 or later mobile phone, with 4.0 Bluetooth. iOS 8.0 or later iPhone mobile phone, with 4.0 Bluetooth.

  • Page 39: Register And Login

    2. Register and Login 2.1 Register After the MStim Sport Application is installed properly, it will appear on your phone desktop. You need to register to use the MStim Sport Application. Open this APP, go to the login interface (as shown on the left), press the register button, and follow the prompts to register.
  • Page 40 2.2 Login again You can open the app, press the login button on the login page, enter the email and the password, click login to enter the main page, as shown on the left. 2.3 Switch account Click the icon in the upper right corner of the main interface to see more, click the icon , enter the setting...

  • Page 41: Connect The Device

    3. Connect the Device Click “click here to connect the device” at the main interface to connect MStim Sport Application which on the phone and the device via Bluetooth. The APP will search the devices automatically, as shown on the below. When it has searched, the interface will display the device which has found. Click “unbonded”...
  • Page 42 Four main units can be connected at the same time. The Bluetooth address of the unit is below the product model. You can paste this Bluetooth address on the unit to distinguish other unit. Click to view the device information, such as battery percentage, firmware and software version of device.
  • Page 43 Also you can click “Identified Color” to select a color to distinguish other unit. Select a color and confirm, then paste the same color label on the unit surface.

  • Page 44: Main Interface

    4. Main Interface Open MStim Sport, you can see the main interface, as shown on the left. The software has the power display function; the main interface of the upper right corner shows the power of the main unit. MStim Sport has up to seven training programs. There are Warm-up Exercises, Endurance Exercises, Strength Exercises, Explosive...
  • Page 45 Table: Training Programs Training Description Programs Warm-up Warm-up Exercises plans help the muscles prepare, activate some muscles before Exercises training, twitching increases blood flow, warm the muscle tissue, and speed all the reactions necessary for the most efficient muscular contraction. Endurance Endurance program imposes an average medium working level on muscle fibers.
  • Page 46 Explosive To improve explosivity and increase the speed with which maximum muscle strength Strength can be supplied. It is designed to improve performance in sporting activities of very brief duration. To ensure a progressive approach in the muscle stimulation training. Resistance To activate the anaerobic metabolism of muscle fibers during the stimulation session and induces the production of lactic acid.
  • Page 47 We take the Endurance Exercise program as an example and introduce the method of use. Enter Endurance Exercises interface Click Endurance Exercises at the main interface to enter the Endurance Exercises interface, as shown on the left. Select training parts You can select the training site as needed.
  • Page 48 Start treatment When the parameter is set, click the start button to start the treatment. Automatically adjust pulse duration MStim Sport has the function of automatic adjusting pulse duration. When click start button, the interface displays” Optimum pulse duration is being recognized, please wait…”, as shown on the left.
  • Page 49 The current regulation module displays the units which had connected. The gray circle indicates that the device did not be connected. Once it connects, it will become orange. The color of line below the circle can be used to distinguish devices.
  • Page 50 Adjust output intensity MStim Sport has the function of automatic adjusting output intensity (except Relieve Pain mode). After the start the treatment, the device will automatically output the appropriate intensity according to the user's situation. Also you can adjust the intensity by yourself. Click button, interface pop-up tip:...
  • Page 51 Output disconnect When the output is disconnected, the indicator on the main unit is displayed in white and flashing at 1 Hz, the treatment time stops counting down, and the APP appear a pop-up tip. At the same time, the main unit stops output (i.e., the output intensity is reduced to 0 mA).
  • Page 52 Training phase The interface will display the phase of the training in real time. You can understand the training process, as shown in the right. These programmes begin with a warm-up phase (if you have not skipped this phase when setting).
  • Page 53 10) Tips of change mode During the treatment, if you click on other training programs, the interface will automatically go to the current treatment interface, and appear as shown on the left. At this time, if you want to change the mode, long press the stop button to stop the current training.

  • Page 54: Help Center

    5. Help Center Click the icon in the upper right corner of the main interface, enter the help center interface.
  • Page 55 5.1 Using guidance There is some introduction of how to operation the LGT-232(US) in using guidance, which is convenient for you to understand the use of device.
  • Page 56 5.2 Common problem MStim Sport Application includes a variety of common problems, you can learn more about the LGT-232(US) and treatment.

  • Page 57: Operation Guidance

    Operation Guidance 1. Preparing for Use 1.1 Charging the unit To be able to use the device, you first have to charge the unit. Place the stimulator in the charging case as the following picture shows. Next, connect the Mico-USB end of the power adapter to the charging case and plug the other end into the power socket.
  • Page 58 Up to LGT-232(US) units can be four charged at the same time by connecting the Micro-USB ports of the other charging cases to the charge connector of this charging case, as shown in the following figure. NOTE: If the rechargeable battery of the units is not fully charged when you start a treatment, the batteries may run out during the treatment.
  • Page 59 1.5 Place the electrodes 1.2 Turn on the unit Place electrodes patient’s skin Press the ON/OFF button to turn on the unit to according to reference or actual conditions, attach standby. them properly and firmly. 1.3 Open the MStim Sport and connecting 1.6 Connect the unit When using the device for the first time, you Connect the electrodes to the unit.
  • Page 60 2. Starting a Treatment 2.1 Parameter Setting According to the actual situation, choose the appropriate electrical stimulation therapy or protocol, set the treatment parameters, treatment time, etc. (see the chapter MStim Sport Application) 2.2 Press the START button Click the start button and the treatment begins. 2.3 Adjust output intensity MStim Sport has the function of automatic adjusting output intensity.
  • Page 61 2.4 The End of Treatment At the end of the treatment, the unit stops output and returns to the pre start state. The indicator is switched from yellow to green and flashes at 1Hz frequency, while the mobile application interface shows "the treatment is finish."...

  • Page 62: Care And Maintenance

    Care and Maintenance 1. Cleaning Please turn off the device before the cleaning and disinfection operation; For the main unit and charging case cleaning, what recommended are a clean, soft damp cloth for stains, and a clean, soft dry cloth for dust in the surface of the main unit. Do not clean the main unit with organic solvent such as gasoline or diluents, otherwise damage will be happened to the main unit such as deformation and falling off of the paint.
  • Page 63 particular regular maintenance. Manufacturer will provide circuit diagrams, component part lists, descriptions, calibration instructions to assist to service personnel in parts repair. The unit and accessories must be checked at regular intervals. 1) Check the power line to ensure if there is no distortion, fracture, etc. These circumstances may cause fire hazard.
  • Page 64 3. DISPOSAL For environmental reasons, do not dispose of the device with the household waste at the end of its useful life. Dispose of the unit at a suitable local collection or recycling point. Dispose of the device in accordance with EC Directive – WEEE (Waste Electrical and Electronic Equipment). If you have any questions, please contact the local authorities responsible for waste disposal.

  • Page 65: Troubleshooting

    Troubleshooting This chapter summarizes the most common problems you could encounter with the LGT-232(US). If you are unable to solve the problem with the information below, please call the distributors. Troubles Possible Causes Solutions 1. The indicator does not The battery of the unit is empty. Charge the unit (see chapter Preparing for use’).
  • Page 66 Troubles Possible Causes Solutions 3. The status indicator on The battery of the unit is empty. Charge the unit (see chapter Preparing for use’). the unit flashed White and the unit switched off. 4. There is not output. 1. Did not press the start button; 1.

  • Page 67: Technical Specifications

    Technical Specifications 1. Stimulator Output Parameters Channel: Single channel Output Waveform: Symmetrical biphasic pulse Pulse Duration: Recognition phase: 50μs, 400μs; Treatment phase: 70-400μs Pulse Frequency: 1-120Hz not exceed 300 mJ per pulse (at 500Ω load) Pulse Energy: Timer: Timer tolerance: ± 2%; When finish, the device can stop output and prompt.
  • Page 68 2. Stimulator Output Waveform Program 1 Warm-up Exercises Pulse duration Recognition phase: 50μs, 400μs; Treatment phase: 200-400μs Treatment time 9min Waveform STEP 1 6Hz for 2min, 7Hz for 2min, 8Hz for 2min. STEP 2 5-30Hz, sweeping time 12s (5Hz for 4s, from 5Hz to 30Hz for 6s, from 30Hz to 5Hz for 2s);...
  • Page 69 Program 2 Endurance Exercises Pulse duration Recognition phase: 50μs, 400μs; Treatment phase: 200-400μs Treatment time 49min or 46min (skip warm-up phase) Waveform STEP 1 5Hz for 3min, Surge Modulation (Ramp down time 2s). STEP 2 10Hz, Surge Modulation (Ramp up time 0.5s, Hold time 8s, Ramp down time 0.5s); 3Hz, Surge Modulation (Ramp up time 0.5s, Hold time 2s, Ramp down time 0.5s), for 220 cycles.
  • Page 70 Program 4 Explosive Strength Pulse duration Recognition phase: 50μs, 400μs; Treatment phase: 200-400μs Treatment time 27min or 24min (skip warm-up phase) Waveform STEP 1 5Hz for 3min, Surge Modulation (Ramp down time 2s). STEP 2 100Hz, Surge Modulation (Ramp up time 1s, Hold time 3s, Ramp down time 0.5s); 1Hz, duration 32s, for 30 cycles.
  • Page 71 Program 6 Training Recovery Pulse duration Recognition phase: 50μs, 400μs; Treatment phase: 200-400μs Treatment time 22min  3Hz for 2min, Surge Modulation (Ramp down time 1s); Waveform  2Hz for 1min, Surge Modulation (Ramp up time 1s, Hold time 58s, Ramp down time 1s);...
  • Page 72 Program 7 Relieve Pain Pulse duration 70μs Treatment time 22min Waveform  50-120Hz, sweeping time 4s (from 50Hz to 120Hz for 2s, from 120Hz to 50Hz for 2s);  5Hz, Surge Modulation (Ramp up time 1s, Hold time 3s, Ramp down time 1s); ...

  • Page 73: Other Specifications

    4. Other Specifications Product Name: Portable Electro-Stimulation Therapy Device Model: LGT-232(US) Software Release Stimulator (main unit): A Version: MStim Sport application: 1 (Android&iOS) Power Supply: Adapter model: HYI11-005 Adapter supply voltage: AC100-240V, 50/60Hz Adapter output: DC 5V, 2A. Battery: 3.7V, 500mAh, lithium battery. ...
  • Page 74 Weight: Main unit: 60g Charging case: 150g  Classification (IEC 60601-1): Class II, Type BF Applied Part; Classification:  Ingress Protection: IP22 (main unit);  Mode of Operation: Continuous.  Temperature: 5 to 40° C; Environmental  Rel. humidity: ≤80%; conditions of operation: ...

  • Page 75: Assistance

    Every intervention on device must be performed by manufacturer. For any assistance intervention and original spare parts please contact the manufacturer at following address: GUANGZHOU LONGEST SCIENCE & TECHNOLOGY CO., LTD. Add: 5&6F, Building B4, No.11, Kaiyuan Avenue, Science City, Guangzhou Hi-tech Industrial Development Zone, 510530 Guangzhou, Guangdong Province, P.R.

  • Page 76: Warranty

    To validate the warranty, please complete the Warranty Card and send it together with the copy of original invoice to email address service@longest.cn within 7 working days of purchase. 2) Warranty for the accessories (charging case, power adapter and lithium battery) ...
  • Page 77 warranty period due to a defect in material or workmanship, at the Manufacturer's Option, Manufacturer or the authorized dealer will repair this Product without charge. Damages due to non-adherence to the User Manual are excluded from warranty. 3) This Warranty Does Not Cover: ...

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