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