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Measuring of Range of Motion-ROM of the joints of the hand play an important role in assessing both functional problems and progress of rehabilitation therapy and hand surgery. Today, there are no standardized devices allowing the physician to evaluate as quantitative, automatic and reliability hand functionality for therapy and diagnostics. We present the design and implementation of a resistive...
This paper presents a development program of a new rehabilitation workstation for hand dysfunction. The rehabilitation workstation has functions as follows: hand dysfunction diagnosis, assessment of disability, hand rehabilitation by physical training. With the assistance of data gloves as well as hand strength measuring/training devices designed by the present authors, this workstation measures the...
A prototype for a walking assistance apparatus for the elderly or motor palsy patients was developed, using a novel spatial parallel link mechanism. The flat steps of the apparatus move in parallel with the ground; the apparatus can support entire leg alignment (including soles) and assist; walking behavior at ankle, knee and hip joints simultaneously. By using a flexible link, constructed of stainless...
In this paper, a mobile gait monitoring system (MGMS) is proposed for the diagnosis of abnormal gait and rehabilitation. The proposed MGMS consists of Smart Shoes and a micro signal processor with a touch screen display. It monitors patients' gait by observing the ground contact forces (GCFs) and the center of GCF (CoGCF). Since visual feedback about patients' gait and normal GCF patterns are provided...
The paper presents results from a virtual reality (VR)-based system for upper limb rehabilitation. The system incorporates a range of interchangeable direction sensing devices (the Optical Linear Encoder (OLE) and the inertial measurement unit (IMU)) that can be adjusted to a large range of different arm and hand sizes, and interactive practice applications designed for motivating and seamlessly driving...
Following hand function impairment caused by a neurological disorder, the functional level of the upper extremities has to be assessed in the clinical and rehabilitation settings. Current hand function evaluation tests are somewhat imprecise. Instrumented gloves allow finger motion monitoring during the performance of skilled tasks, such as grasping objects. As a result, they provide an objective...
Intensive task-oriented repetitive physical therapies need be provided by individualized interaction between the patients and the rehabilitation specialists to improve hand motor performance for those survived from stroke and traumatic brain injury. The goal of this research is to develop a novel wearable device for robotic assisted hand repetitive therapy. We designed a pneumatic muscle (PM) driven...
A legged locomotor device for paraplegics have been attempted to improve their ADL and to prevent some complications. A stride control of the system based on the user's intension is important to coordinate the voluntary movements of the user and the assisted movements of the paralyzed legs. In this paper, we propose a human interface with a walker to control the stride length of a legged locomotor...
A bidirectional force feedback dataglove actuated by pneumatic artificial muscles is introduced which has simpler exoskeleton structure and exerts bidirectional force only on the fingertips. Moreover, its fewer attachments can reduce the effect of the attachment looseness on the accuracy of position and force control. It meets all needs of virtual reality and the requirement of hand rehabilitation...
Games-based biofeedback training uses augmented feedback signals to control the action of computer games. The NeuroGymreg system of games-based biofeedback has been used to improve the muscle activation and gait pattern of a patient with spinal cord injury. Training with this system also improved functional balance in a group of active older adults.
As haptic devices become more affordable and economical, research in Haptic-based virtual rehabilitation systems is gaining more interest. A prototype haptic virtual rehabilitation system was developed in our lab using the CyberGrasp system with the goal of assisting patients who suffered from stroke leading to temporary upper extremity disability. However, calibration of the system for each user...
Gait analysis is important element in therapy and rehabilitation of hemiplegic individuals. We developed a simple, portable sensor system, which can be used for recording of gait signals, as well as for estimation of important gait parameters like joint angles, ground reaction forces, and various temporal parameters. In order to assess robustness of the system in everyday use in different environmental...
This paper presents a novel human joint motion recording method, The recorded data are sent to the receiver, which is placed in the close proximity or in the same room with the patient, via a wireless short-range communications system that guarantees 3 days of battery life. This method exploits commercially available bend sensors to convert mechanical human joint movements into electric signals which...
This paper proposes a data glove for a rehabilitation robot interface for the upper-extremity paralysis. The designed data glove uses seven flexible sensors to measure the flexion angles of fingers and wrist. We verified the performance of the data glove using a 3D graphic interface from we developed. From experimental results, we show the proposed data glove is feasible to sense the hand motions...
Intensive task-oriented repetitive physical therapies provided by individualized interaction between the patient and a rehabilitation specialist can improve hand motor performance in patients survived from stroke and traumatic brain injury. However, the therapy process is long and expensive and difficult to evaluate quantitatively and objectively. The goal of this research is to develop a novel wearable...
In order to offer a method for the rehabilitation of injured fingers and a means of quantitative detection and evaluation, an exoskeleton based continuous passive motion (CPM) machine is presented in this paper. Corresponding to each finger of human hand, the CPM machine has 4 degrees of freedom (DOF) driven by two DC motors. The joint force and position sensors are all integrated into the machine...
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