Final answer:
The St. Jude's valve is an example of a bileaflet tilting disc prosthetic heart valve, featuring two semi-circular discs, designed to replace damaged human heart valves.
Step-by-step explanation:
An example of a bileaflet tilting disc prosthetic heart valve is C. St. Jude's. These types of valves are designed to replicate the function of a human heart valve, and they are a common choice for heart valve replacement surgeries. The St. Jude valve features two semi-circular discs that open and close with the flow of blood, hence the name bileaflet. Unlike ball-and-cage or single-disc valves, bileaflet valves are known for their improved hemodynamics and lower risk of blood clot formation.