You should post this under the “Ask Admissions Consultants” thread also.
Even MD/PhD’s are expected to work with patients and in patient care. I think a concern for med schools would be that if you’ve never had a strong exposure to the delivery of healthcare, how do you know you want the MD (and PhD) instead of just going to graduate school for a Masters and PhD in whatever research field interests you. If you really aren’t interested in patient care, are you sure you want to go through an MD program (because you still complete the whole MD program)? I would suggest that for your application you should get some clinical experience. The AMCAS application will ask for a personal statement, but secondary applications for MD/PhD programs will give you a chance to explain more thoroughly why you want to go into the MD/PhD program.