Magnesium Alloy Displaces Polymer As Default Chemistry
Polymer scaffolds needed struts around 150 microns to hold radial force, roughly twice a modern permanent stent, and that thickness is what drove the thrombosis signal. Magnesium alloy delivers comparable support at 99 to 120 microns and resorbs inside 12 months rather than three years. Biotronik's Magmaris and its successor platforms carry CE marking with multi-year imaging follow-up published, which is the specific evidence regulators asked for. The chemistry argument is effectively settled in Europe. What remains is scale and a United States pathway. Nobody is funding a new polymer coronary programme in 2026.
Market Impact: About 7.5 years to approval








