Constantinos Mavroidis

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The continuous technological progress of magnetic resonance imaging (MRI), as well as its widespread clinical use as a highly sensitive tool in diagnostics and advanced brain research, has brought a high demand for the development of magnetic resonance (MR)-compatible robotic/mechatronic systems. Revolutionary robots guided by real-time three-dimensional(More)
Virtual reality (VR) is a powerful technology for solving today's real-world problems. It provides a way for people to visualize, manipulate, and interact with simulated environments through the use of computers and extremely complex data. This paper describes some of the emerging applications of VR recently completed or currently underway in the field of(More)
This paper presents a novel, smart and portable active knee rehabilitation orthotic device (AKROD) designed to train stroke patients to correct knee hyperextension during stance and stiff-legged gait (defined as reduced knee flexion during swing). The knee brace provides variable damping controlled in ways that foster motor recovery in stroke patients. A(More)
1 Assistant Professor, Principal Investigator, Corresponding Author 2 Graduate Student, NSF Fellow 3 Undergraduate Research Assistant 4 Graduate Student Abstract: In this paper, the application of Rapid Prototyping in fabricating non-assembly robotic systems and mechanisms is presented. Using the Stereolithography Apparatus SLA 190 of the Department of(More)
There is increasing realization that some tasks can be performed significantly better by humans than robots but, due to associated hazards, distance, etc., only a robot can be employed. Telemedicine is one area where remotely controlled robots can have a major impact by providing urgent care at remote sites. In recent years, remotely controlled robotics has(More)
This paper presents the mechanical design for a new five fingered, twenty degree-of-freedom dexterous hand patterned after human anatomy and actuated by Shape Memory Alloy artificial muscles. Two experimental prototypes of a finger, one fabricated by traditional means and another fabricated by rapid prototyping techniques, are described and used to evaluate(More)
This analytic and experimental study proposes a control algorithm for coordinated position and force control for autonomous multi-limbed mobile robotic systems. The technique is called Coordinated Jacobian Transpose Control (CJTC). Such position/force control algorithms will be required if future robotic systems are to operate effectively in unstructured(More)