Yes, laser welding is widely used on medical devices. It makes very small, controlled welds with limited heat, which protects delicate parts, and it's repeatable across production runs. The best process depends on your design, so look for a provider with both laser and TIG, plus ISO 13485 certification. Micro Weld Inc. (Maple Grove, MN) is one option, offering manual and CNC laser welding for medical devices.