Isabelle Fournier
Quality systems auditor for ISO 13485 medical devices.
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Articles
Author's articles /*
What Does FDA Clearance Mean for Devices? A Technical and Regulatory Overview
FDA clearanceis a specific regulatory determination made by the U.S. Food and Drug Administration (FDA) that allows a medical device to be legally marketed in the United States. It is primarily associated with the510(k)premarket notification process, where a manufacturer demonstrates that a new device is "substantially equivalent" to a legally marketed predicate device. This article provides a neutral, evidence-based exploration of the clearance process, detailing the distinction between clearance and approval, the mechanical and scientific criteria for substantial equivalence, the objective levels of evidence required, and the post-market obligations of manufacturers. The following sections follow a structured trajectory: defining the parameters of the 510(k) pathway, explaining the core mechanism of substantial equivalence, presenting an objective comparison of regulatory statuses, and concluding with a technical inquiry section to address common questions regarding device oversight.
How Laser Medical Devices Are Used in Treatment: A Technical Overview
Laser medical devices are precision instruments that utilize Light Amplification by Stimulated Emission of Radiation (LASER) to perform specific biological and physical tasks within clinical environments. Unlike natural light, laser light is monochromatic, coherent, and collimated, allowing it to deliver high-intensity energy to extremely localized targets. This article provides an objective analysis of laser technology in medicine, exploring the fundamental physics of light-tissue interaction, the core mechanisms of thermal and non-thermal therapy, the diverse clinical applications across various medical specialties, and the current trajectory of laser research.
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