The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The technology in robotics has been developed remarkably in recent years. Especially, usage of robots in medical field, such as telesurgery, is expected more and more along with the population aging. To realize precise surgery, accurate transmission of force sensation is an important issue. Therefore, bilateral control system is taking attention for the application of robots to telesurgery. Bilateral...
This paper reports support effects of an exoskeleton system for activities of a hand and an upper limb of a healthy person. The support system augments human forces of a hand, a wrist joint and an elbow joint based on bioelectric potential of each muscle so that the upper limb could be assisted by the exoskeleton with a certain rate of wearer's force. Actuators in the assistive system are replaced...
In our current research, we are developing a robotic walker system with standing, walking and seating assistance function. Our developing system is based on a walker which is popular assistance device for aged person in normal daily life and realizes the standing and seating motion using the support pad which is actuated by the novel assistance manipulator mechanism with four parallel linkages. In...
The number of hemiplegic patients with a unilateral-disabled limb has been increasing globally, this stimulate the development of rehabilitation robots that assist patients in motor function recovery and strength enhancement. However, as yet, few robots have achieved self-controlled rehabilitation training, and force feedback is generally realized with force sensors. This paper introduces a self-controlled...
The neural mechanisms of fine motor control and recovery, e.g. after a stroke, are not fully understood, nor how these are influenced by different types of motor therapies, leaving potential for optimization of current rehabilitation strategies. This paper presents the development and evaluation of a novel robotic tool for fMRI-based neuroscience studies allowing to investigate the neural mechanisms...
Haptic interfaces have played an important role in the investigation of human factors, the identification of passive joint properties and gaining a better understanding of how the central nervous system learns to compensate for external dynamic perturbations through neuromuscular adaptation. Such devices further promise novel therapeutic approaches in neurorehabilitation, by assisting the patient...
Many robotic systems, like surgical robots, robotic hands, and exoskeleton robots, use cable passing through conduits to actuate remote instruments. Cable actuation simplifies the design and allows the actuator to be located at a convenient location, away from the end effector. However, nonlinear frictions between the cable and the conduit account for major losses in tension transmission across the...
To develop a gait rehabilitation robot for hemiplegic patients, quantitative evaluations of patient ability is needed. Patient's walk phase, which includes time balance of stance and swing legs, is one of the most useful indexes. However, conventional methods measuring walk phase require laborious preparations. In this paper, a novel algorithm estimating walk phase on a treadmill by observing DC motor...
This paper is about the design of an active hand orthosis for hand rehabilitation in the acute and sub-acute phase after stroke. The device presented here was conceived as an add-on for the cable-suspended robots for upper limb rehabilitation developed at the Department of Innovation in Mechanics and Management of University of Padua, Italy. With this improvement, we aim to deliver coordinated distal...
This paper deals with the development of a novel exoskeleton for the robotic rehabilitation of upper extremities. The system is based on modular custom-designed actuation groups implementing high reduction ratios and redundant position measurement for securing patient safety, and joint torque sensing for guaranteeing system performance and providing application flexibility. Experimental results of...
This paper presents the mechanical design of an ankle rehabilitation robotic device based on a 2-dof, redundantly actuated parallel mechanism. The parallel mechanism introduced in this paper has the advantage of mechanical and kinematic simplicity when compared to existing platforms while at the same time it is fully capable of carrying out all the exercises required by ankle rehabilitation protocols...
In this paper we present our low-level software framework that allows human neuromuscular properties and behaviors to be programmed modularly onto biologically inspired prosthetic devices. Specifically this software framework is used at the lowest level of the anatomically correct testbed (ACT) hand. It abstracts away from the robotic details and allows users including biologists to program individual...
In this paper, we present the design of a new fMRI compatible haptic interface with 3DOFs, based on electrical DC actuation, for the study of brain mechanisms of human motor control. In order to evaluate the validity of the proposed solution, we performed some preliminary experiments with a single degree of freedom device to test the compatibility with the fMRI environment. The 1DOF design was extended...
This paper proposes a robotic walker system with standing, walking and seating assistance function. Our system focuses on domestic use for aged person who needs nursing in their daily life. Our key ideas are two topics. The first topic is combination of standing assistance function and walking assistance function. In previous works, many assistance devices are specialized in only ldquostanding-up...
The laparoscopy surgery has been developed well enough to use a surgical robot as the development of robot technology. As distinct from the traditional large invasive surgery, surgical robot conducts the operation through small invasive hole using instrument which performs surgery instead of surgeon hand. And surgeon just drives the robot using master system located far from patient. But the surgical...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.