Heat Treatment of Nickel-Titanium Occluders for the Medical Device Industry

Nickel-Titanium (NiTi) occluders are critical components in minimally invasive cardiovascular procedures, such as atrial septal defect (ASD) or patent foramen ovale (PFO) closure. Their performance depends entirely on the stability of their shape memory and superelastic properties, which can only be achieved through precise heat treatment under controlled conditions.

Normantherm provides specialized vacuum furnace systems designed exclusively for medical-grade NiTi processing. Our equipment ensures:

• Stable Austenite Transformation Temperatures (Af/Ms control)
• Ultra-clean, oxygen-free environment to prevent surface contamination
• Uniform temperature distribution for consistent superelasticity
• Custom programming for shape-setting and aging treatment cycles

By maintaining reproducibility across every batch, Normantherm enables medical device manufacturers to meet ISO 13485 and FDA-level quality requirements.

Why It Matters

A single defect in an occluder could compromise patient safety. That’s why the Medical Device Industry relies on vacuum heat treatment technology that guarantees mechanical reliability, biocompatibility, and traceability. At Normantherm, we don’t just supply furnaces — we supply confidence in every implant.