Force-based Safe Vein Cannulation in Robot-assisted Retinal Surgery: A Preliminary Study.

ABSTRACT: Retinal vein cannulation (RVC) is a potential treatment for retinal vein occlusion (RVO). Manual surgery has limitations in RVC due to extremely small vessels and instruments involved, as well as the presence of physiological hand tremor. Robot-assisted retinal surgery may be a better approach to smooth and accurate instrument manipulation during this procedure. Motion of the retina and cornea related to heartbeat may be associated with unexpected forces between the tool and eyeball. In this paper, we propose a force-based control strategy to automatically compensate for the movement of the retina maintaining the tip force and sclera force in a predetermined small range. A dual force-sensing tool is used to monitor the tip force, sclera force and tool insertion depth, which will be used to

SUBMITTER: Wu J 

PROVIDER: S-EPMC8480430 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature