Sigma Biomedical, acoustic output measurement, acoustic testing, ultrasound testing, diagnostic ultrasound testing, probe testing

Transducer Validation
Diagnostic Ultrasound Safety and Performance

Transducer Repair Process Validation

Ultrasound transducer repair processes can introduce changes that may affect the safety, quality and effectiveness of the repaired transducers compared to the original FDA cleared transducers. Due to the growing concerns of the industry in this crucial subject, recently, the FDA has announced the establishment of a docket to receive information and comments related to activities by third party entities that refurbish, recondition, rebuild, remarket, remanufacture, service and repair medical devices. It is expected that the FDA will release regulations so these processes and products are properly validated, approved and monitored for their safe and effective use in the medical field.

Companies need to validate and verify that materials and processes are in compliance with FDA regulations. Transducer repair entities thus need to ensure that the transducer repair process does not affect affect safety and effectiveness. When the repair process modifies the characteristics and performance of the ultrasound transducer, companies need to submit a 510(k) to obtain clearance for marketing, sale and distribution of their repaired ultrasound transducers.

Our offer

Sigma Biomedical offers regulatory consulting, product compliance and testing services to help you achieve compliance with regulations. Sigma Biomedical assists companies to establish transducer repair validation methodologies. The validation process includes transducer performance measurements, transducer sensitivity and fractional bandwith, medical electrical safety, electromagnetic compliance, image quality measurements, acoustic power measurements, surface temperature and biocompatibility of patient contact materials. All these measurements can be taken before and after the repair process is completed to obtain an objective assessment of the repair process and its effect in transducer performance compared to unrepaired OEM probes. Sigma Biomedical can assist companies performing risk analysis for the entire repair process.

Probe Repair Validation Services

  • Risk Management/Risk Analysis as per ISO 14971
  • Acoustic Output Measurements as per IEC 60601-2-37
  • Imaging Performance -Clinical Safety and Effectiveness
  • Electrical Safety as per IEC 60601-1
  • Electromagnetic Compliance as per IEC 60601-1-2
  • Biocompatibility under ISO 10993
  • 510(k) Product Submission
  • Quality Management System as per cQSR and ISO 13485

Power Measurement

Acoustic Quantities

2D Beam Measurement


Imaging Performance

System Effectiveness

Electrical Performance