How could i buy an intrathecal pain pump for a critical patient in venezuela? i beg for your help.

Insertion: Who is going to insert and manage it? It needs to be filled with sterile meds when implanted and then it needs to be refilled every few months. Also the first few months are when dosing changes the most, who would do the adjustments and do they have the external monitor to do it? Even if you got the pump how will you deal with these hurdles?