An in vivo vessel sealing end effector, the end effector comprising: (a) an in vivo end effector body operably coupleable to an arm of an in vivo robotic device, the in vivo end effector body comprising: (i) a cautery component actuation motor; (ii) a cutting component actuation motor; (iii) a jaw actuation motor; (iv) a cautery component shaft disposed within the in vivo end effector body and operably coupled to the jaw actuation motor; (v) an electrical connection rotatably fixed to the cautery component shaft; and (vi) a first slip ring coupled to the in vivo end effector body, wherein the first slip ring is configured to maintain electrical contact with the electrical connection during rotation of the cautery component; (b) a bipolar vessel cautery component operably coupled to the in vivo end effector body, the cautery component comprising: (i) a stationary jaw coupled to a distal end of the cautery component shaft; (ii) a mobile jaw pivotally coupled to the distal end of the cautery component shaft; and (iii) a cutting component operably coupled to the cutting component actuation motor, wherein the cautery component is operably coupled to the cautery component actuation motor, and wherein the electrical connection is electrically coupled to one of the mobile jaw and the stationary jaw; and (c) an external electrical source electrically coupled to the first slip ring. (a) an in vivo end effector body operably coupleable to an arm of an in vivo robotic device, the in vivo end effector body comprising: (i) a cautery component actuation motor; (ii) a cutting component actuation motor; (iii) a jaw actuation motor; (iv) a cautery component shaft disposed within the in vivo end effector body and operably coupled to the jaw actuation motor; (v) an electrical connection rotatably fixed to the cautery component shaft; and (vi) a first slip ring coupled to the in vivo end effector body, wherein the first slip ring is configured to maintain electrical contact with the electrical connection during rotation of the cautery component; (i) a cautery component actuation motor; (ii) a cutting component actuation motor; (iii) a jaw actuation motor; (iv) a cautery component shaft disposed within the in vivo end effector body and operably coupled to the jaw actuation motor; (v) an electrical connection rotatably fixed to the cautery component shaft; and (vi) a first slip ring coupled to the in vivo end effector body, wherein the first slip ring is configured to maintain electrical contact with the electrical connection during rotation of the cautery component; (b) a bipolar vessel cautery component operably coupled to the in vivo end effector body, the cautery component comprising: (i) a stationary jaw coupled to a distal end of the cautery component shaft; (ii) a mobile jaw pivotally coupled to the distal end of the cautery component shaft; and (iii) a cutting component operably coupled to the cutting component actuation motor, wherein the cautery component is operably coupled to the cautery component actuation motor, and wherein the electrical connection is electrically coupled to one of the mobile jaw and the stationary jaw; and (i) a stationary jaw coupled to a distal end of the cautery component shaft; (ii) a mobile jaw pivotally coupled to the distal end of the cautery component shaft; and (iii) a cutting component operably coupled to the cutting component actuation motor, (c) an external electrical source electrically coupled to the first slip ring.