MONOPOLAR AND BIPOLAR ELECTROSURGERY DEVICE

1 . A surgical system comprising:

an electrosurgical power generator;

at least one surgical mechanical arm comprising a tool configured to operate in at least one bipolar operational mode;

at least one motor unit comprising:

a connector configured to connect said motor unit to said electrosurgical power generator or wherein said electrosurgical power generator is housed within said at least one motor unit;

wherein said at least one motor unit comprises:

one or more actuators mechanically coupled to said surgical arm and configured to actuate said surgical arm;

a first electrical conduction pathway electrically connected to said electrosurgical power generator and extending from said motor unit, through a volume defined by said surgical mechanical arm, to said tool; and

a second electrical conduction pathway connected to said electrosurgical power generator and extending from said motor unit to said tool.

2 . The surgical system of claim 1 , wherein said tool comprises:

a first surface electrically coupled to said first electrical conduction pathway; and

a second surface electrically isolated from said first surface and electrically coupled to said second electrical conduction pathway.

3 . The surgical system of claim 1 , wherein said tool is configured to operate in one or more of:

at least one monopolar electrosurgical mode; and an uncharged mode.

4 . The surgical system of claim 1 , wherein said one or more actuators rotate portions of said surgical arm thereby rotating said first electrical conduction pathway and said second electrical conduction pathway.

5 . The surgical system of claim 4 , wherein said one or more actuators rotate one or more surgical arm gear, which surgical arm gears are configured to actuate portions of the surgical arm.

6 . The surgical system of claim 5 , wherein one or more surgical arm gear isolates said first electrical conduction pathway from said second electrical conduction pathway.

7 . The surgical system of claim 1 ,

wherein said first electrical conduction pathway includes a first slip ring disposed within said motor unit; and

wherein said second electrical conduction pathway includes a second slip ring disposed within said motor unit;

wherein said first slip ring and said second slip ring are coupled by a gear, which gear is configured to electrically isolate and to rotate the slip rings.

8 . The surgical system of claim 7 , wherein said first slip ring, said second slip ring and said gear have coaxial axes of rotation.

9 . The surgical system of claim 5 , wherein one or more surgical arm gear isolates said first electrical conduction pathway from said second electrical conduction pathway.

10 . The surgical system of claim 5 , comprising an elongated portion coupled to said tool;

wherein said gear is coupled to said elongated portion and configured to rotate said elongated portion about an elongated portion long axis thereby rotating said tool.

11 . The surgical system according to claim 10 , wherein said first electrical conduction pathway includes said elongated portion.

12 . The surgical system of claim 10 , wherein said first electrical conduction pathway includes an elongated element configured to actuate said tool.

13 . The surgical system of claim 10 , wherein said first electrical conduction pathway includes a tubular portion of an electrosurgical arm.

14 . An electrosurgical tool comprising:

a first portion including a monopolar tip and a first bipolar surface where said monopolar tip and said first bipolar surface are electrically connected;

a second portion mechanically coupled to said first portion;

a second bipolar surface:

attached to said second portion;

electrically isolated from said first bipolar surface and said second portion; and

configured to be brought towards said first bipolar surface;

a first electrical conduction pathway electrically connected to said first and second portions;

a second electrical pathway electrically connected to said second bipolar surface and electrically isolated from said first electrical conduction pathway.

15 . The electrosurgical tool of claim 14 , wherein said second bipolar surface is configured to be brought into contact with said first bipolar surface.

16 . The electrosurgical tool of claim 14 , wherein said first electrical conduction pathway includes an elongated element configured to actuate said first and second portions to move said portions towards each other.

17 . The electrosurgical tool of claim 16 , wherein said elongated element actuates said first and second portions by rotation about an elongated element long axis.

18 . The electrosurgical tool of claim 17 , wherein said elongated element is coupled to a screw, which is coupled to a connection between said first and said second portions;

wherein rotation of said elongated element linearly moves said screw with respect to said coupling.

19 . The electrosurgical tool of claim 18 , wherein said connection is a pivot connection.

20 . The electrosurgical tool according to claim 19 , wherein said first portion and said second portion are coupled to a distal end of a body of an elongate surgical mechanical arm.

21 . The electrosurgical tool of claim 20 , wherein an actuator configured to rotate said elongate element is coupled to a proximal portion of said surgical mechanical arm.

22 . The electrosurgical tool of claim 19 , wherein said first electrical conduction pathway includes a tubular portion of an electrosurgical arm.

23 . The electrosurgical tool of claim 14 , wherein said monopolar tip has a spatula shape.

24 . The electrosurgical tool of claim 14 , wherein one or more of:

said monopolar tip extends from said first portion by 1-5 mm; and

said monopolar tip is 0.1-2 mm thick.

25 . The electrosurgical tool of claim 14 , wherein at least one of said portions includes a plurality of protrusions sized and shaped to increase friction between said first bipolar surface and said second bipolar surface.

26 . The electrosurgical tool according to claim 17 , wherein said elongated element is configured to transfer torque applied to a proximal end of said elongated element to a distal end of said elongated element, which distal end actuates said first and section portions.

27 . The electrosurgical tool according to claim 26 , wherein said elongated element is configure to transfer torque when one or more portion of said elongated element is bent.