{HEAD ~ The collection unit} has a storage unit storing the control data, a check unit checking the integrity of {TAIL ~ the control data} using the check datum, and a transmitting unit transmitting the control data to a programmable control unit of the medical device only if the integrity of the control data is established by the check unit  
{ HEAD ~ The collection unit } has a storage unit storing the control data , a check unit checking the integrity of { TAIL ~ the control data } using the check datum , and a transmitting unit transmitting the control data to a programmable control unit of the medical device only if the integrity of the control data is established by the check unit
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH