The ability to visualize a minimally invasive medical device or product during use is an important consideration during the development and regulatory review of that medical device. Mitigating risk associated with medical device or product development is an important and necessary activity. There are several standards to guide us to appropriate evaluation activities. ASTM F640 has been around since the 1970s and is an important reference for medical devices and products. There are other standards such as ISO 5361 specific to tracheal tubes, and ISO 4049 for dental implants that need to be considered based on the indication of the device or product.
We have successfully evaluated numerous medical devices for radiopacity and have supported global regulatory submission with our testing, acceptance criteria development, worst case model creation and validated methods. Our experience includes neonatal devices, picc lines, access devices, implants and accessories or supplies. As with most medical device related risk mitigation activities, it is important to stay current on technology, testing standards, and regulatory expectations. Likewise, consulting companies like MED are able to be more efficient and cost effective by amortizing the cost of expensive testing equipment, the cost of validation of the test method, and on-going expenses to maintain method accreditation across numerous projects over many years.
The most common challenges to evaluating radiopacity of a medical implant are:
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