Abstract In this study, a novel two-degree-of-freedom active-feeder mechanism with disposable roller module for buckling prevention of the catheter tube was developed and analyzed. The phenomenon occurs when flexible part cannot withstand compressive force. Buckling can be prevented using additional parts that support long along tube; however, these passive-type buckling-prevention mechanisms i...

In this paper we present a robot vision mechanism for a multiagent robotic systems for controlling the behavior of the agents. For implementing this vision mechanism we consider the fuzzy technology which is very versatile in this situation. This mechanism offers the surveillance of the entire set of robots and contributes to their behavior. Index Terms — cooperative systems, intelligent contro...

Traditional machine learning algorithms typically employ task specific methods and only the parameters predetermined by the human programmer are updated. These methods often fail to respond to the dynamically changing states of the uncontrolled environments. Additionally, such methods may not represent a developmental entity, such as a human mind. In contrast, an open-ended developmental robot ...

The human finger possesses a structure called the extensor mechanism, a web-like collection of tendinous material that lies on the dorsal side of each finger and connects the controlling muscles to the bones of the finger. In past robotic hand designs, extensor mechanisms have generally not been employed due in part to their complexity and a lack of understanding of their utility. This paper pr...

In this paper, we propose a wheel-based cable climbing robotic system which can climb up and down the vertical cylindrical cables in the suspension bridges. Firstly, we develop climbing mechanism which includes wheels driven by motors and adhesion system.In addition,we propose a special design of adhesion mechanism which can maintain adhesion force even when the power is lost.Finally, an additi...

In this paper we describe the design of a new bio-inspired amphibian robot with high environmental adaptability. The robot, called MiniTurtle-I, can transform terrestrial and aquatic locomotion configurations through a new variable topology mechanism (Leg-Flipper). Based on the modular design philosophy, four rotatory joint modules (Joints I–IV) constitute a Leg-Flipper module. Variable topolog...

BACKGROUND Recently, robotic systems have been introduced as a useful method for surgical procedures. But in the field of vascular interventional therapy, the development of robotic system is slower. OBJECTIVE The purpose of the study is to verify the reliability and safety of vascular interventional robotic system used in angiography, by the way of in vitro preliminary experiments and animal...