Terms such as ultrasound cleaning, infusion, care and treatment are common in the market. Regulatory assessment must look behind the label and verify what the same or different handpiece actually does.
1. Ultrasound cleaning
A surface-cleaning purpose should explain how residue, oil or cosmetic material is removed, how the transducer contacts the skin, what the liquid medium does, and why the output remains a surface process. Deep-tissue claims conflict with a simple cleaning position.
2. Ultrasound infusion
“Infusion” requires identification of the substance, whether the intact skin barrier is crossed, the expected destination, and the role played by ultrasound. Drug, anaesthetic or treatment-related delivery may create additional medical-device or combination-product questions.
3. Ultrasound treatment
When the purpose concerns disease, injury, pain, inflammation or deliberate physiological modification, assessment should follow the applicable medical-device definition and classification framework. Renaming treatment as “care” does not remove the real purpose.
4. Multi-mode devices
- Output and frequency for each mode.
- Continuous or pulsed control and duration.
- Different probes or handpieces.
- Coupling medium and companion products.
- Body area and method of use.
- Separate tests and risks.
- Whether modes may be combined.
5. Correct naming sequence
Do not select a popular commercial word first and force the technical file to support it. Confirm the actual mechanism, define evidence-based claims, and then choose a name and intended purpose consistent with the regulatory route.
Cleaning, infusion and treatment are purpose descriptions; they cannot determine product status independently from real ultrasound output and body interaction.