Means of Telemetry
I just had a Medtronic dual-lead/dual chamber pacemaker installed. I am 4 days post-procedure. 12 hours after the operation, a representative from Medtronic came in at 0-dark-30 and woke me from a fentanyl stupor, and strapped me in, after placing what appeared to be a blue hockey-puck with leads over me left shoulder. When asked what the hockey puck was for, she replied that it allowed her to "log in" to my device and download statistics on heart rate, frequency of pacing, and percentage of battery used. She would not give me any really useful information, such as "what RF frequency does the device communicate on?" and "is the data encrypted", and "is there a password to my heart".
Being an engineer, I am less interested in the fact that this device paces my heart and much more interested in the datacom aspect of the device. It is clearly wireless, and I am thinking about hooking up a scope and an antenna and looking for the signal.
Does anyone know how this little chunk of metal communicates through my chest wall to the blue hockey puck? I am really curious. I al also REALLY sore - when does THAT little inconvenient side effect go away?