Ankle-Foot Orthoses (AFOs) are orthotic devices supporting movements of ankles for disabled people for example hemiplegia, peroneal nerve palsy, etc. In our research, we have developed the intelligently controllable AFO (I-AFO) which can control its ankle torque by using compact Magneto-rheological fluid (MRF) brakes. In this paper, we describe the… (More)
In recent years, many researchers have studied on the rehabilitation robotics to assist medical staff or patients. Some kinds of haptic devices have been developed and evaluated its efficiency with clinical tests, for example, upper limb training for patients with spasticity after stroke. Almost all the devices for upper limb rehabilitation have only 2-DOF… (More)
Many kinds of actuator-based (active type) haptic devices have developed and utilized as rehabilitation robots. These systems have great advantages for rehabilitative activities, for example assistive forces and so on. However, from the view point of safety, we have a room to consider utilizing brake-based (passive type) haptic devices as… (More)
A 77-year-old woman was admitted to our hospital with unstable angina pectoris. She was previously diagnosed as having both mitral valve regurgitation and aortic valve stenosis and underwent surgery for replacement of both valves when she was 61 years of age. At 66 years of age, she was admitted to our hospital for angina pectoris and underwent implantation… (More)
Following stroke, rehabilitation exercises paired with medical treatment are important for the recovery and maintenance of upper limb function. We developed a 2-DOF passive haptic system for upper limb rehabilitation and software focusing on reaching exercises, known as the coin collecting program, which provides training and evaluation of motor function,… (More)
Reliefs describe objects or scenes by sculpted surfaces. These are usually designed by compressing the depth information of target 3D shapes. Recently, several techniques are proposed to create new types of reliefs that describe images by diffuse reflection under directional lighting , self occlusion , specular reflection , or refraction . For… (More)
Intermolecular [2+2+1] cycloaddition which incorporates an alkyne, an isocyanate, and an alkene into a γ-butyrolactam proceeds with nickel catalyst.