When testing prosthetic heart valves including TAVR for durability they use a device such as this. It simulates heart beats at 15x speed so we can see how the valve would hold up over time. This is how newer valve tissue is often tested before utilization. What you see here is just a demo - (because heart valves don't have 4 leaflets!) #tavr #heartdisease #cardiology #aorticstenosis #mitralvalveprolapse #medicine #medtech #surgery #learnontiktok