Title
A passive admittance controller to enforce Remote Center of Motion and Tool Spatial constraints with application in hands-on surgical procedures
Abstract
The restriction of feasible motions of a manipulator link constrained to move through an entry port is a common problem in minimally invasive surgery procedures. Additional spatial restrictions are required to ensure the safety of sensitive regions from unintentional damage. In this work, we design a target admittance model that is proved to enforce robot tool manipulation by a human through a remote center of motion and to guarantee that the tool will never enter or touch forbidden regions. The control scheme is proved passive under the exertion of a human force ensuring manipulation stability, and smooth natural motion in hands-on surgical procedures enhancing the user’s feeling of control over the task. Its performance is demonstrated by experiments with a setup mimicking a hands-on surgical procedure comprising a KUKA LWR4+ and a virtual intraoperative environment.
Year
DOI
Venue
2022
10.1016/j.robot.2022.104073
Robotics and Autonomous Systems
Keywords
DocType
Volume
Physical Human–Robot Interaction,RCM manipulation,Active constraints,Surgical robots,Variable damping
Journal
152
ISSN
Citations 
PageRank 
0921-8890
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Theodora Kastritsi111.36
Zoe Doulgeri200.34