Two-piece end-effectors for robotic surgical tools
First Claim
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1. An apparatus for robotic surgery, the apparatus comprising:
- a first metal scissor blade having a first drive interface portion, a first cutting portion extending from the first drive interface portion, and a first oval opening extending between the first drive interface and the first cutting portion to receive a first metal crimp of a first cable, whereinthe first drive interface portion having a first pivot hole, a first pair of drive holes spaced from the first pivot hole, a first cam channel having a pair of end stops spaced from the first pivot hole, and a first stop protrusion spaced from the first pivot hole, wherein the first pair of drive holes to receive a first pair of drive dogs, the first cam channel to receive a second stop protrusion, the first stop protrusion to be inserted into a second cam channel,andthe first cutting portion having a first cutting edge;
and,a second metal scissor blade having a second drive interface portion, a second cutting portion extending from the second drive interface portion, and a second oval opening extending between the second drive interface portion and the second cutting portion to receive a second metal crimp of a second cable, a surface of the second drive interface to rotatingly mate with a surface of the first drive interface, whereinthe second drive interface portion having a second pivot hole to align with the first pivot hole, a second pair of drive holes radially spaced from the second pivot hole, the second cam channel having a pair of end stops radially spaced from the second pivot hole, and the second stop protrusion radially spaced from the second pivot hole, wherein the second pair of drive holes to receive a second pair of drive dogs, the second cam channel to receive the first stop protrusion, the second stop protrusion to be inserted into the first cam channel,andthe second cutting portion having a second cutting edge.
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Abstract
In one embodiment of the invention, a robotic surgical tool having opposing jaws, the working element of the robotic surgical tool is made of a different material from the drive element of the robotic surgical tool. The two elements may be manufactured independently and assembled together at a later stage. The material comprising each element may thus have properties more appropriate to the function each element plays in the robotic surgical tool. For example, the metal selected to comprise the blade of a surgical scissor may be corrosion resistant and capable of being sharpened to a high degree.
852 Citations
6 Claims
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1. An apparatus for robotic surgery, the apparatus comprising:
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a first metal scissor blade having a first drive interface portion, a first cutting portion extending from the first drive interface portion, and a first oval opening extending between the first drive interface and the first cutting portion to receive a first metal crimp of a first cable, wherein the first drive interface portion having a first pivot hole, a first pair of drive holes spaced from the first pivot hole, a first cam channel having a pair of end stops spaced from the first pivot hole, and a first stop protrusion spaced from the first pivot hole, wherein the first pair of drive holes to receive a first pair of drive dogs, the first cam channel to receive a second stop protrusion, the first stop protrusion to be inserted into a second cam channel, and the first cutting portion having a first cutting edge; and, a second metal scissor blade having a second drive interface portion, a second cutting portion extending from the second drive interface portion, and a second oval opening extending between the second drive interface portion and the second cutting portion to receive a second metal crimp of a second cable, a surface of the second drive interface to rotatingly mate with a surface of the first drive interface, wherein the second drive interface portion having a second pivot hole to align with the first pivot hole, a second pair of drive holes radially spaced from the second pivot hole, the second cam channel having a pair of end stops radially spaced from the second pivot hole, and the second stop protrusion radially spaced from the second pivot hole, wherein the second pair of drive holes to receive a second pair of drive dogs, the second cam channel to receive the first stop protrusion, the second stop protrusion to be inserted into the first cam channel, and the second cutting portion having a second cutting edge. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification