There are a couple choices for the bipolar energy dissection.  I prefer to use bipolar, however monopolar is available.  Intuitive has a Maryland, Curve Bipolar Dissector and Long Bipolar Dissector.  

There are a couple choices for the bipolar energy dissection.  The hook is useful in certain circumstances.  I think it helps to control small vessel bleeding.  Many utilize it even for precise LN dissection.  

This is the most usefull instrument for the 3rd arm and general retraction.  Atraumatic to the lung tissue but consider utilizinf a Kittner Cigar in the grasper to help with retraction. 

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This is the typical energy device like the Ligasure or Enseal.  Divids up to 7 mm.  I use it for small venous or arterial branches.  Also useful for thymectomy and foregut procedures.

Left hand atraumatic grasper.  Since it is blunt it assists in gentle dissection around vessels.  There is the Force Bipolar varient that has a atraumatic setting and stronger grip (traumatic) with the addition of bipolar use.  

This is Intuitive new energy device that is an extension of the vessel sealer line.  We have not used it as of yet but hope to incorporate it as a dissector and sealer in one.