The arterial cannula market is projected to grow from USD 23.9 billion in 2025 to USD 45.2 billion by 2035, at a CAGR of 6.6%. Extracorporeal Membrane Oxygenation (ECMO) will dominate with a 47.3% market share, while 14-16 fr will lead the size segment with a 22.6% share.