I: XYZP-IB Computer Intermediate Frequency Therapy Apparatus Product Performance

1. Operating Conditions:

a) Ambient temperature range: +5℃ to +40℃; b) Ambient humidity range: ≤80%;

c) Atmospheric pressure range: 700hPa to 1060hPa;

d) Rated voltage: a.c.220V, rated frequency: 50Hz.

2. Rated input power: 60VA.

3. Main unit dimensions: length 280mm, width 205mm, height 80mm, tolerance ±20mm.

4. Electrode wire: length 1300mm, tolerance ±50mm.

5. Square electrode plates:

XX-107*72: length 107mm, width 72mm, tolerance ±10%; XX-85*55: length 85mm, width 55mm, tolerance ±10%.

6. Operating frequency: 2kHz to 10kHz, single frequency tolerance ±10%.

7. Modulation frequency: 0 to 150Hz, single frequency tolerance ±10% or ±1Hz, whichever is greater.

8. Intermediate frequency carrier waveform: bidirectional square wave, pulse width 50us to 250us, tolerance ±10%; modulation waveforms include sine wave, square wave, triangular wave, exponential wave, sawtooth wave, spike wave, and continuous wave.

9. Modulation modes: continuous, intermittent, burst, frequency conversion, dense-sparse, and alternating modulation. 10. Intermediate frequency modulation depth: 0%, 25%, 50%, 75%, 100%, tolerance ±5%. 11. Intermediate frequency therapy prescriptions: 35 fixed prescriptions.

12. Intermediate frequency output current: under a 500Ω load, each channel output current is not greater than 100mA, output intensity adjustable in 0 to 99 levels.

13. Output current stability: the output current variation rate under different loads should not exceed 10%.

14. Intermediate frequency output peak voltage: when measured under open circuit conditions, the intermediate frequency output peak voltage should not exceed 500V. 15. Operation: when output is set to maximum, operate open circuit for 10 minutes and then short circuit for 5 minutes, the therapy apparatus should function normally.

16. Electrode plate temperature: 38℃ to 55℃, adjustable in 6 levels, tolerance ±3℃.

17. Electrode plates: should be qualified products with Class I medical device filing certificate.

18. Treatment time: intermediate frequency treatment time is preset in the prescription, with an audio prompt at the end and output cessation, tolerance ±1min.

19. Load impedance: the effective load impedance of this therapy apparatus is 500Ω, impact on technical indicators is negligible within ±10% variation of rated load impedance.

20. Operation mode: continuous operation.

21. Continuous operation time: verified through actual operation, should be no less than 4 hours.

II: Main Structure:

Mainly consists of the host unit, electrode wires, and electrode plates.

III: XYZP-IB Computer Intermediate Frequency Therapy Apparatus Scope of Application:

This product has anti-inflammatory and analgesic effects for conditions such as frozen shoulder, lateral epicondylitis, cervical spondylosis, lumbar disc herniation, degenerative osteoarthropathy, rheumatoid arthritis, rheumatoid arthritis, sprains, contusions, myofibrositis, muscle strain, stenosing tenosynovitis, sciatica, peripheral nerve injuries, and joint contractures; it improves local blood circulation and promotes inflammation resolution for myositis and delayed fracture healing; it excites neuromuscular function for disuse muscle atrophy, urinary retention, and muscle dysfunction after nerve or muscle injuries.