In the US a patent holder can absolutely exclude you from making or using their patented inventions. However, the US gov can infringe at will without any court

In the US a patent holder can absolutely exclude you from making or using their patented inventions. However, the US gov can infringe at will without any court orders or special laws. If a US gov agent (any low level CDC or health agency employee could do it) told the hospital to print valves, there is nothing the patent holder can do about it except get paid for the value of the valves sometime later.