I. LDG-3 Computerized Stereodynamic Interferential Electrotherapy Apparatus Product Overview

The LDG-3 Computerized Stereodynamic Interferential Electrotherapy Apparatus delivers three channels of 5000Hz intermediate frequency currents crosswise into the human body, forming a stereoscopic interference field internally. Simultaneously, it performs low-frequency amplitude modulation on these three currents, achieving multi-site, multi-directional, multi-angular, and multi-shaped low-frequency dynamic stimulation effects. The electrotherapy apparatus consists of a main unit, leads, and electrode pads.

Stereodynamic interferential current not only combines the therapeutic effects of intermediate and low-frequency currents but also features stereoscopic stimulation, multi-site stimulation, and dynamic changes in intensity and stimulation sites, resulting in more comprehensive therapeutic effects on the human body.

This unit has three independent outputs of 5000Hz intermediate frequency sinusoidal current. It contains 49 pre-programmed expert treatment prescription programs that can be freely selected. Users can also create their own treatment prescription programs. By arbitrarily combining 6 treatment modes, 6 beat frequency ranges, fixed or variable frequencies, and treatment duration, multi-step treatment programs can be self-designed and input into the instrument for optimal therapeutic use.

This unit has multiple display functions.

Digital tubes: Display the current prescription number, segment number, treatment mode, remaining treatment time, and output current intensity.

LED indicators: Display the dynamic changes of the three output intermediate frequency currents. Indicate the current treatment mode, beat frequency range, and fixed or variable frequency.

II. Structural Composition

This product consists of a main unit, leads, and electrode pads.

III. Scope of Application

Softening scars and releasing adhesions: Scars, scar contractures, postoperative adhesions, intestinal adhesions, stenosing tenosynovitis, post-injection indurations.

This product can excite neuromuscular tissue, soften scars, release adhesions, and has analgesic, anti-inflammatory, and local blood circulation improvement effects. However, the body may easily develop adaptability.

Examples of indications:

Exciting nerves and muscles: Muscle dysfunction after nerve or muscle injury, disuse muscle atrophy, constipation, vocal cord paralysis, gastroptosis, urinary retention.

Analgesic and anti-inflammatory effects: Periarthritis of shoulder, lateral epicondylitis of humerus, cervical spondylosis, lumbar disc herniation, degenerative osteoarthropathy, rheumatic arthritis, rheumatoid arthritis, sprains, contusions, myofibrositis, muscle strain, pelvic inflammatory disease, adnexitis, chronic pharyngitis, mammary gland hyperplasia, sciatica, peripheral nerve injuries, joint contractures, chronic prostatitis, delayed union of fractures.

IV. Contraindications

Bleeding tendencies, local acute suppurative inflammation, local malignant tumors, local cardiac pacemakers, local metal implants, cardiac region, lower abdomen of pregnant women.

V. Normal Operating Conditions

1. Ambient temperature: 5°C to 40°C.

2. Relative humidity: ≤80%.

3. Atmospheric pressure: 500 hPa to 1060 hPa.

4. Power supply conditions: AC 220V ±22V, 50Hz ±1Hz.

5. Input power: 100 VA.

VI. LDG-3 Computerized Stereodynamic Interferential Electrotherapy Apparatus Main Technical Parameters

1. Number of output channels: 2; each channel is independently set and connects to three electrode pads.

2. Continuous operation time: ≥4 hours.

3. Operating frequency: 5 kHz (under 500Ω condition), error ±10%.

4. Output current: Maximum output current should be not less than 50mA, output current limit should be not more than 100mA (under 500Ω condition), error ±10%, and should be continuously adjustable from minimum to maximum output.

5. Three-channel vector sum current display: After vector summation of the three output currents, the display should be not more than 173mA (under 500Ω condition), error ±10%.

6. Beat frequency range: 0 to 200 Hz (under 500Ω condition).

7. Beat frequency variation period: 15s to 30s (under 500Ω condition).

8. Dynamic rhythm: 4s to 10s (under 500Ω condition).

9. Treatment time: 15min to 30min, error ±10%.

10. Fuse: F1A250V, Φ5mm×20mm.

11. Safety type: Class I, BF-type applied part.

12. Operating mode: Continuous operation.

13. Output open and short-circuit performance: At maximum output, after short-circuiting the electrodes for 5s, then open-circuit for 15s, and turning off the output for 1min, repeating the test 10 times, the equipment should function normally.

14. Dimensions: 490mm × 400mm × 200mm.

15. Weight: 9kg.