Blood vessel transecting and anastomosis

A blood vessel transecting device, comprising:

• a cutting tool including:
• a generally cylindrical first portion including a cutting element adapted to be exposed to an internal surface of a blood vessel in a cutting tool open position, and to be shielded from the blood vessel internal surface in a cutting tool closed position;
• and
• a generally cylindrical second portion including an anvil that is movable with respect to the cutting element, the cutting element configured to rotate against the anvil to transect the blood vessel;
• a catheter shaft coupled to the cutting tool;
• and
• an occlusion device distal the cutting element, wherein the first portion is closer to the occlusion device in the open position and further away from the occlusion device in the closed position;
• and
• a suction means connected to the catheter shaft configured to apply a suction through an inner lumen of the catheter shaft.