The collection unit has {HEAD ~ a storage unit} storing {TAIL ~ the control data}, a check unit checking the integrity of 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  
storing
The collection unit has { HEAD ~ a storage unit } storing { TAIL ~ the control data } , a check unit checking the integrity of 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
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH