| CPC A61B 17/2909 (2013.01) [A61B 17/2812 (2013.01); A61B 17/29 (2013.01); A61B 18/1445 (2013.01); A61B 34/30 (2016.02); A61B 2017/00398 (2013.01); A61B 2017/00473 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00876 (2013.01); A61B 2018/00172 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00595 (2013.01); A61B 90/50 (2016.02)] | 20 Claims |

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1. An arm component for a medical device, the arm component comprising:
(a) an arm body;
(b) a rotatable cylinder disposed within the arm body, the rotatable cylinder comprising:
(i) a fluidically sealed end effector lumen defined within the rotatable cylinder; and
(ii) at least one torque transfer channel defined in a wall of the end effector lumen; and
(c) a rotatable drive component operably coupled to the rotatable cylinder, the rotatable drive component comprising:
(i) a rotatable body; and
(ii) a drive component lumen defined in a distal portion of the rotatable body, wherein the drive component lumen comprises mating features defined within the drive component lumen.
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