I answered your last question, but to extend the response:
Biomedical engineering can work in either setting. In hospitals, they would be designing and testing macro scale products, like artificial limbs. In a factory setting, they might be engineering the mass production of an enzyme or vaccine. The field is very flexible.
The fact that you hate biology should tell you something. While biomedical engineering is NOT biology, it is involved with medecine and biochemistry. You need to seriously consider this fact when choosing between the two.

Good point, mali...you can take a double major ya know. And there's grad school--to really get anywhere you'll need grad school anyway, so don't sweat the details now.