Segmentation by type classifies devices into balloon‑expandable, self‑expanding, and mechanically expandable valves, each reflecting distinct engineering principles and clinical performance profiles. Balloon‑expandable valves, characterized by a stainless‑steel or cobalt‑chromium frame that inflates to a predetermined diameter, capture roughly 40 % of the market, favored for precise deployment in calcified aortic anatomy. Self‑expanding valves employ nitinol or polymeric scaffolds that adapt to vessel contours, representing about 45 % of sales; their recapturable nature and lower radial force suit patients with larger annuli or borderline access routes. Mechanically expandable systems, still emerging, use incremental expansion mechanisms to achieve gradual sizing, contributing an estimated 15 % of the market. The distribution across these types influences overall market dynamics by dictating manufacturing complexity, pricing strategies, and reimbursement pathways, thereby shaping the total addressable market for interventional heart valve technologies.