Authors:
Peter P. Pott
1
;
Markus L. R. Schwarz
1
;
Achim Wagner
2
and
Essameddin Badreddin
2
Affiliations:
1
Laboratory for Biomechanics and experimental Orthopaedics, OUZ, Medical Faculty Mannheim, University of Heidelberg, Germany
;
2
Automation Laboratory, University of Mannheim, Germany
Keyword(s):
Hybrid kinematics, Medical robotics, Comparison.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Robot Design, Development and Control
;
Robotics and Automation
Abstract:
Robotic systems are used within a great variety of medical disciplines. A handheld robot promises a number of advantages compared to conventional (medical) robots but this approach leads to strict specifications regarding size, weight and dynamic properties. A new hybrid kinematics – the Epizactor – seems to be advantageous and is compared to two well-known parallel kinematics regarding the ratio of workspace and volume the number of kinematic elements, the cost of computation, the stiffness the effects of clearance, actuation (weight), and accuracy using a well-described industrial method for comparison. It becomes clear that the Epizactor has advantages concerning the ratio of workspace and volume, needs a smaller number of kinematic elements and fewer computations, and has less than half the mass than the parallel kinematics. Its accuracy, stiffness and the effects of clearance are comparable. The advantages of this new kinematic set-up lead to a first deployment within the field
of medical robotics.
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