Because the hospital equipment involves personal safety, each step is very strict, will be strictly required precision, fault tolerance and other issues, so the cost is very high. A set of equipment from research and development to review the success may require a team of many years of operation, the cost of investment is not the average company can afford. Later sales, the cost is added to the equipment used above,
A million of equipment, the number of times it can be used are limited. So each startup can cost hundreds or even thousands.