Model DS-100 · Medical device in conformity assessment
A control unit with touchscreen, two independently controlled applicators, a frequency range of 10 to 150 hertz (Hz). This page explains what that means in the treatment room: in full, with verifiable facts and without superlatives.
Operating principle
DuoSonic generates controlled mechanical oscillations between 10 and 150 Hz. These are transmitted directly to intact skin via a hand-held applicator, without coupling gel and without pressure. The oscillation stimulates muscles, fascia, connective tissue and mechanoreceptors.
Its defining feature is a small amplitude combined with steep edges: a sonic stimulus, rich in harmonics, that travels along bone, tendons and fascia. As a result, a single contact point reaches a considerably larger area than the contact surface itself.
In context
Therapeutic ultrasound operates in the megahertz range, far above what mechanoreceptors respond to. Patients do not notice the treatment, and a coupling gel is needed. Shockwave therapy sits at the other end: focused, high-energy, with a single pulse per trigger. There is a gap between the two.
DuoSonic fills it: a continuous oscillation within the physiological stimulus range, delivered via two applicators, which patients can feel and hear, while remaining completely painless, including on joints, the neck and the face. It does not replace anything; it adds a treatment to your practice’s range that you cannot offer today, and a new option for patients who do not tolerate shockwave therapy or do not respond to it.
Frequencies compared
Logarithmic scale. The physiological stimulus range refers to the frequency range in which cutaneous mechanoreceptors are stimulated.
Controls
Everything you adjust during a treatment is on the main screen. No submenus, no scrolling, no week-long learning curve.
From 10 to 150 Hz in 10 Hz steps, via slider or plus/minus buttons.
Typical settings: 10–30 Hz for deep tissue stimulation,
30–70 Hz for reducing muscle tone, 60–70 Hz for superficial and
sensitive regions, 100 Hz for pain modulation.
Controls the amplitude and thus the strength of tissue stimulation. Treatment always starts at low intensity and is increased according to the patient’s comfort and the therapeutic goal.
During treatment, the device automatically varies the frequency around the set target value. This counteracts habituation of the receptors and increases the variability of the treatment. The system adapts to different tissue properties.
Soft: gentle oscillation profile for sensitive regions and superficial structures. Deep: higher energy input for deep muscles, chronic tension and trigger points.
Large for the back, thigh and gluteal muscles as well as
large muscle groups.
Small for hands, feet, face and
small anatomical structures. Each can be controlled individually.
The timer ends the treatment automatically after the set duration, standardizing treatment times across practitioners. Predefined programs for common musculoskeletal indications are also available; the body map stores starting values for each muscle.
Details on treatment duration, session frequency and length of a treatment course can be found under Clinical use, and an overview of contraindications under Safety.
Technical data
| Device | Value |
|---|---|
| Model / item number | DuoSonic DS-100 |
| Frequency range | 10–150 Hz, in 10 Hz steps |
| Intensity | 10–100%, continuously adjustable |
| Operating modes | manual or predefined program |
| Treatment depth | Soft / Deep |
| Applicator ports | 2 (independent) |
| Operation | integrated touchscreen, 10.1 inches |
| Dimensions (H × W × D) | 320 × 230 × 83 mm |
| Weight (device only) | 2.5 kg |
| Power supply | external power supply DS-NET-0001 |
| Commissioning | no assembly or calibration required |
| Expected service life | 8 years |
| Delivery & environment | Value |
|---|---|
| Large applicator | DS-LAP-0001 |
| Small applicator | DS-LAP-0002 |
| Power supply | DS-NET-0001 |
| Carrying case | DS-CAS-0001 |
| Packaging dimensions (H × W × D) | 498 × 138 × 408 mm |
| Weight incl. case | 5.1 kg |
| Storage temperature | −10 °C to +50 °C |
| Relative humidity | 30% to 75%, non-condensing |
| Atmospheric pressure | 700 hPa to 1060 hPa |
| Electromagnetic compatibility (EMC) | CISPR 11, Group 1, Class B |
| Conformity | Conformity assessment under Regulation (EU) 2017/745 in progress; CE marking expected from January 2027 |
Applicators are cleaned and disinfected after every treatment; the housing, touchscreen and cables as required. Always apply disinfectant to the cloth, never spray it onto the device. No solvents, no acetone, no abrasive cleaners.
Visual and functional check by the user before each use. Recurring safety inspections (STK) in accordance with IEC 62353 and the German Medical Devices Operator Ordinance (Medizinprodukte-Betreiberverordnung, MPBetreibV) by a qualified person. Technical service exclusively by WF-Medical or authorized personnel.
24-month manufacturer’s warranty. Optionally extendable to five years with DuoSonic device protection, including an immediate replacement device via your specialist dealer, a support hotline and firmware updates.
We answer technical questions directly, and if you would rather try the device out for yourself, we will bring it to you.
