ultrasonic blade 1566 another tine 1546 is configured to arc toward and meet with ultrasonic blade 1566 at a node or acoustically isolated feature such that tine 1546 and the acoustic assembly form an integrated unit as can best be seen in fig4 b one tine 1542 may be configured to be selectively removed from housing 1520 forceps 1510 additionally comprises a button 1521 which may be used to selectively switch between operational states described above of course other examples of forceps 1510 incorporating elements of the various examples described above will be apparent to those of ordinary skill in the art in view of the teachings herein fig4 through 54 show an exemplary alternative set of tines 1640 tines 1640 are substantially the same as tines 42 46 having similar elements and functionality with certain exceptions noted below tines 1640 are shown as having a passive tine 1642 and an active tine 1646 unlike passive tine 42 the distal end 1643 of passive tine 1642 is configured to selectively rotate about the longitudinal axis of passive tine 1642 such that differing tissue pads 1645 1645 may face active tine 1646 in particular distal end 1643 of passive tine 42 includes a substantially flat tissue pad 1645 and a substantially triangular tissue pad 1647 in this example.