Answer
(Fatwa: 811/745=L-1429
(1) Poor and needy Muslims are entitled to receive the amount of zakah. It is not allowed to purchase medical instruments with this amount or to spend it on non-Muslims.
(2) Subsidise fees income received form Muslims and no-Muslims can be used for running the organization and maintaining equipments. Also, it is right to purchase medical instruments with these fees as well as to spend it on non-Muslims, for it is an aid and there is no discrimination between Muslims and non-Muslims regarding aid, both can be granted aid.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband