be removed from the catheter 68 in some instances the physician may not cut a second endpoint after the device 60 is removed from the catheter the diseased tissue may be loosened from the adventia between the two endpoints or up to the single endpoint by any suitable means e g endarterectomy loop or ring stripper for example the physician may insert an endarterectomy loop into the catheter 68 to loosen the diseased tissue from the adventia 12 layer between the first and second endpoints after the diseased tissue is loosened from the adventia 12 layer the diseased tissue may then be removed through the catheter 68 by any suitable means e g suction once the diseased tissue is removed the catheter 68 may be removed from the vessel referring again to fig5 the device 60 may also be used within a multilumen catheter to perform an endarterectomy the instrument described in the harkrider u s patent application ser no 09 276 679 for endoluminal multi luminal surgical sheath and method is a suitable catheter an exterior incision may be made in the vessel and the multilumen catheter may be inserted into the vessel the physician may then insert optics into the first lumen of the catheter for viewing and to thereby locate the diseased tissue the physician may choose the device 60 to perform the endarterectomy as described herein the physician may then position multilumen catheter to a position adjacent the location of the first endpoint the physician may then insert the device 60 into a second lumen of the multilumen catheter.