Avoiding Extraction And Chemical Characterization Pitfalls In Complex Medical Devices

By Kimberly Ehman, Ph.D., DABT; Leela Chapman, B.S.

Extraction data can be analytically sound and still misrepresent patient risk. When materials swell, liquefy, degrade, or absorb solvents, the artifacts that result can distort biological responses, complicate exhaustion arguments, and prompt regulatory questions that slow submissions.

Kimberly Ehman, Ph.D., DABT, and Leela Chapman, B.S., look at where extraction programs for complex devices tend to go wrong and why. They consider material-specific behavior in tissue-derived products, hydrogels, absorbables, silicone implants, and drug-containing devices, and weigh exhaustive extraction against simulated-use approaches. They also address how early coordination between analytical chemists and toxicologists shapes the final data package.

Read the application note to see how study design choices connect to defensible, clinically relevant results.