Technical Cleanliness Analysis – Medical
VDI 2083 P.21 Medical Devices
Particle contamination in medical devices is becoming established as a key industry requirement, driven by the need to ensure product safety, reliability, and functionality throughout their service life. Controlling residual contamination allows manufacturers to ensure patient safety and garantizar el rendimiento óptimo del dispositivo.
In this context, standards widely used in other sectors —such as VDA 19.1 and ISO 16232— are adapted and complemented with medical‑sector‑specific standards, such as the guideline VDI 2083 Part 21 – “Purity of medical devices in the manufacturing process”, which introduces a process‑control and risk‑assessment‑based approach
Caracterización Avanzada de Partículas para un Control Total del Proceso
The standard technical cleanliness test is based on controlled extraction, particle counting, and size classification using optical microscopy and gravimetric analysis. This procedure determines the particulate load of a component and allows it to be compared with the limits defined according to its functional and design requirements.
To obtain a deeper insight, the analysis can be complemented with advanced techniques such as SEM‑EDX and FT‑IR, which provide detailed characterization of the composition and nature of the particles. When integrated into a risk‑based control strategy, these tools enable the optimization of manufacturing processes and reinforce compliance with acceptance criteria.
The information obtained through these techniques supports the identification of root causes, the prevention of potential failures, and the continuous improvement of technical cleanliness levels, contributing to more robust processes and safer devices.
