Yes, Therapeutic methods are patentable as long as there is no prior art disclosure of such method and has supported scientific data.
Therapeutic methods are patentable only in few jurisdictions, US patent system allow therapeutic method claims but Indian and Swiss jurisdictions don't allow please check does your jurisdiction allows such patents.
Patent protection is defined by claims, if your device is having all components of patented one then you will be infringing it. Now if patent is active in US then you cannot do said claimed activity in US.
i doubt that personal use comes under bolar provisions.
Even if you use personal design and not the drawing provided in patent and claims cover your ...