Dear Jen, I am unsure as to why the manufacturer is so highly effected by the needs you have listed. Why would it matter to them how ergonomic or functional the product is (for example)? You can argue that if the product functions well it will increase sales and the manufacturer will get constant repeat orders, however it still would not justify giving it a 5.
As well as that, I think you are forgetting about a very important if not he most important persona- the people who would have to purchase your product. The people in the hospital/business who are responsible for purchasing equipment. I realized this when looking at your 'low cost' need and realized that no one was really effected by it.. however, these are the people whose jobs depend on saving funds and spreading them among all the needs the hospital has.
what do you think about these?