Bipolar cauterizing instrument
First Claim
1. An electrosurgical instrument for use with a robotic arm, the instrument comprising:
- a body comprising an interface for coupling to the robotic arm;
a wrist body that is rotatably coupled to the body about a first axis;
a pair of opposed end effectors rotatably coupled to the wrist about a second axis, wherein the pair of end effectors being movable between an open position and a closed position;
a first electrode coupled to one of the end effectors; and
a second electrode coupled to one of the end effectors, wherein the first and second electrodes are in a spaced configuration when the end effectors are in the closed position.
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Accused Products
Abstract
A bipolar surgical instrument that includes opposing grips that can engage the tissue. A current is delivered from an electrosurgical power source to electrodes disposed on the grips to cauterize the tissue. The electrode configurations provide efficient cauterization of the tissue. In some embodiments, the positive and negative electrodes will be offset from each other to prevent shorting and to provide a thin line of coagulation heating to the gripped tissue. In some embodiments the electrodes are removably coupled to the grips through nonconductive sleeves. In some embodiments, the first electrode is disposed in a groove and the second electrode is disposed on a boss.
1326 Citations
30 Claims
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1. An electrosurgical instrument for use with a robotic arm, the instrument comprising:
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a body comprising an interface for coupling to the robotic arm;
a wrist body that is rotatably coupled to the body about a first axis;
a pair of opposed end effectors rotatably coupled to the wrist about a second axis, wherein the pair of end effectors being movable between an open position and a closed position;
a first electrode coupled to one of the end effectors; and
a second electrode coupled to one of the end effectors, wherein the first and second electrodes are in a spaced configuration when the end effectors are in the closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An electrosurgical tool for use with a robotic surgery system, the tool comprising:
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a body comprising a proximal portion and a distal portion, wherein the proximal portion comprises an interface for coupling to a robotic manipulator assembly;
a first and second opposing grips rotatably coupled to the distal portion of the body;
nonconductive sleeves disposed over the opposing grips;
a first and second electrode disposed on the nonconductive sleeves;
conductive leads that connect the first and second electrodes to an electrosurgical power source; and
an actuation mechanism coupled to the first and second grips to move the first and second grips between an open position and a closed position. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A electrosurgical cauterizer for manipulation by a robotic surgical system, the cauterizer comprising:
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a body comprising an interface for coupling to a robotic surgical system;
a clevis rotatably coupled to the body about a first axis;
a first and second end effector coupled to the clevis about a second axis, wherein the first and second end effectors comprise;
a conductive grip body comprising a proximal portion and a distal portion, wherein the distal portion comprises grip for gripping a target tissue; and
nonconductive pulley disposed around the proximal portion of the grip body for insulating the first end effector from the second end effector;
a first conductive lead coupled to the first end effector and a second conductive lead coupled to the second end effector, wherein the first and second leads are attachable to a power source for delivering energy to the distal portions of the first and second end effectors.
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Specification