Both parameters are significant quality measures which depend on the utilized steel. Typically, hard steel is brittle and needles using hard steel break more easily than needles made from softer, more elastic steel.
Elasticity, however, may have a negative impact on the insufficient flexural strength in certain applications. This is why Santec uses a special steel that combines the physical advantages of a geometrical needle profile design with a special coating to create a highperformance needle with optimal flexural strength and fracture strength properties. In addition, those needles possess superb penetration performance which is of utmost importance when operating in calcified vascular tissue.