A distal tip of the lead body is continuously deflectable upon {HEAD ~ advancement} and withdrawal of {TAIL ~ a stylet} through the lumen at the distal portion to access a selected branch of the coronary sinus 
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A distal tip of the lead body is continuously deflectable upon { HEAD ~ advancement } and withdrawal of { TAIL ~ a stylet } through the lumen at the distal portion to access a selected branch of the coronary sinus
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH