Vessel harvesting apparatus and method

An apparatus for harvesting a vessel from a body, comprising:

• a first imaging device;
• a cannula having a distal end, and a dissector for advancing along the vessel to create a tunnel, wherein the dissector is coupled to the distal end of the cannula and the dissector includes a transparent portion, wherein the cannula comprises a lumen housing the first imaging device;
• an energy tool moveably coupled to the cannula, wherein the energy tool is configured to separate a pediculated vessel having at least a segment of the vessel and a pedicle around the segment of the vessel from surrounding tissue, and wherein at least a part of the energy tool is visible through the transparent portion of the dissector during use of the energy tool;
• and
• a second imaging device having a distal end;
• wherein the first imaging device is disposed to visualize tissue dissection by the dissector, wherein the visualization of the tissue dissection can only occur through the transparent portion of the dissector, and wherein the second imaging device is disposed to visualize an operation performed by the energy tool, wherein the visualization of the operation can only occur through the transparent portion of the dissector;
• and
• wherein an axis extending from the distal end of the second imaging device to the energy tool traverses the transparent portion of the dissector during use of the energy tool, and wherein the apparatus has a central axis extending along a longitudinal length of the apparatus, the dissector is located at a first longitudinal axis offset from the central axis, and the energy tool is located at a second longitudinal axis offset from the central axis, wherein the second longitudinal axis is different from the first longitudinal axis.