The first lab tests showed two weaknesses: the shell flexed under a heavy, liquid-cooled coil, and the coil seat did not match that coil model exactly. The second generation, delivered in March 2024, fixed both:
- the coil seat is built from the manufacturer's outline of the actual coil;
- the walls are 5 mm thick instead of 3 mm;
- a chin lock was added.
The partner lab reported that the coil now fits exactly and that the new helmet is clearly more stable than the first.
Later in 2024 the product got its first brand name, Helm-T, and a US TMS practice ran an early workflow pilot with a custom helmet. The pilot showed what clinics need besides the device itself: a simple way to capture the head and a predictable turnaround. In November 2024 the international application PCT/AT2024/060464 was filed; it was later published as WO 2025/111627.