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Published Article

PUBLISHED ARTICLE

Extractable/Leachable Chemistry Testing Strategies for Medical Devices

Published In: Medical Device Outsourcing

It has become more prevalent and acceptable to use the results of chemistry testing to assess the overall biocompatibility of medical devices. For many devices with prolonged or permanent patient contact, chemistry followed by toxicological assessment can provide a cost and time-saving alternative to in vivo tests such as chronic, sub-chronic, genetic, and carcinogenicity testing. Manufacturers preparing to submit their device for approval by the U.S. Food and Drug Administration (FDA) rely on ISO 10993 standards and FDA guidance on the application of those standards in the planning of their chemistry testing. When it comes to the details of chemistry testing, however, the ISO standards are often vague. Furthermore, the recommendations regarding the appropriate level of testing rigor can vary within FDA. The following offers a brief overview of the framework provided by ISO 10993 guidance documents for extractable/leachable (E/L) testing, as well as three testing strategies that satisfy both ISO 10993 and FDA requirements.

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Matthew Jorgensen

Matthew Jorgensen

PhD
Chemistry and Materials Scientist

Dr. Jorgensen is an expert in chemistry and materials science. He has over a decade of experience designing, synthesizing, and analyzing complex materials. His analytical chemistry background includes research in organic chemistry synthesizing and analyzing a naturally occurring anti-cancer drug, computational treatment of photothermal spectroscopy, and professionally in a commercial lab. Most of his materials...

Thor Rollins

Thor Rollins

BS, RM (NRCM)
Toxicology and E&L Expert

Thor Rollins is a certified microbiologist and specializes in the selection and conduct of in vitro and in vivo biocompatibility tests. He actively speaks on biocompatibility related topics through Nelson Labs’ external seminars, webinars, and tradeshows. He presented on biocompatibility at the American College of Toxicology annual meeting in 2013 and has published many articles...