What is ISO 23158?

ISO 23158 is officially titled:

“Ultrasonics — Medical diagnostic and monitoring equipment — Characteristics of ultrasonic physiotherapy systems”

This standard outlines:

  1. Performance testing and calibration of ultrasound physiotherapy systems
  2. Parameters for effective acoustic output, frequency, and power levels
  3. Requirements for device labelling, safety features, and documentation
  4. Guidelines for ensuring consistent treatment delivery and patient safety

It applies to both manufacturers of therapeutic ultrasound devices and healthcare providers who use and maintain such equipment.

Why is ISO 23158 important?

Ultrasonic physiotherapy systems are widely used to treat:

  1. Musculoskeletal injuries
  2. Joint pain and stiffness
  3. Soft tissue inflammation
  4. Post-operative recovery

Despite their popularity, poor calibration or inconsistent performance can lead to ineffective therapy or patient injury. ISO 23158 ensures that:

  1. Devices perform within medically acceptable parameters
  2. Therapeutic ultrasound is delivered safely and accurately
  3. Regulators and clinicians can trust the quality and reliability of the product

This standard is essential for medical device manufacturers, rehabilitation equipment suppliers, hospitals, and physiotherapy clinics.

What are the benefits of ISO 23158?

Implementing ISO 23158 into your development or clinical practice brings key advantages:

  1. Reliable Acoustic Output: Standardized methods to verify intensity, frequency, and waveform
  2. Improved Patient Safety: Minimized risk of burns or tissue damage
  3. Device Quality Assurance: Ensures consistent and effective therapy
  4. Clinical Confidence: Increases trust among physiotherapists and healthcare providers
  5. Regulatory Compliance: Meets international guidelines for therapeutic devices


What kind of businesses can benefit from ISO 23158?

Adopting ISO 23158 yields measurable business benefits, including:

  1. Regulatory Market Access

         Simplify approvals in global markets by meeting international device performance requirements.

  1. Enhanced Brand Trust

         Gain a reputation for manufacturing or supplying reliable and safe physiotherapy equipment.

  1. Product Differentiation

          Use ISO 23158 compliance as a key selling point in tenders, exports, and clinical procurement.

  1. Reduced Liability Risk

          Minimize risk of adverse effects, complaints, or legal claims from improperly functioning devices.

  1. Improved Device Lifecycle Management

          Maintain long-term performance consistency with ISO-aligned maintenance and calibration practices.

  1. Support for CE and FDA Submissions

          Complementary to clinical evaluations and product safety data for regulatory submissions.


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