Nagoya-shi, Japan
Nagoya-shi, Japan

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PubMed | Daiyukai Daiichi Hospital, Minami Seikyo Hospital, Yokkaichi Municipal Hospital, Handa City Hospital and 11 more.
Type: Journal Article | Journal: Clinical and experimental nephrology | Year: 2016

Early withdrawal within 3years after starting peritoneal dialysis (PD) and PD-related peritonitis have been major obstacles preventing increases in the population of PD patients. To address these problems, we implemented education programs for medical staff. This study analyzed the recent status and outcomes of PD therapy, focusing on findings such as the incidence and prognosis of peritonitis as of 5years after our last study.We investigated background, laboratory data and status of PD therapy, reasons for withdrawal from PD and incidental statements on peritonitis from 2010 to 2012 (R2), and compared findings with those from our last study of 2005-2007 (R1).Early PD therapy withdrawal in R2 clearly improved to 44.7%, compared with 50.9% in R1. Peritonitis incidence improved slightly from once per 42.8months/patient in R1 to once per 47.3months/patient in R2. Notably, PD-related peritonitis as a cause of mortality improved markedly in R2, but outcomes of PD-related peritonitis did not change significantly between R1 and R2. In contrast, social problems increased as a reason for withdrawal from PD therapy.Our efforts at education might have been useful for improving early withdrawal from PD and deaths attributable to PD-related peritonitis. However, since improvements to incidence of PD-related peritonitis were limited by education, further improvement in PD-related peritonitis incidence requires development of new sterilized connecting systems during PD-bag exchanges to decrease PD-related peritonitis opportunities. Construction of medical support systems to address social problems is required to maintain long-term PD therapy.


PubMed | Denso Corporation, Saku Central Hospital, Seichiryo Hospital, Nagoya University and Minami Seikyo Hospital
Type: | Journal: Journal of eating disorders | Year: 2015

The authors investigated the association between personality and physical/mental status in malnourished patients with eating disorders. A total of 45 patients with anorexia nervosa, avoidant/restrictive food intake disorder, and other specified feeding or eating disorders were included and compared with 39 healthy controls. Personality characteristics and severity of depression were assessed using the Temperament and Character Inventory-125 and Becks Depression Inventory. Depression correlated with harm avoidance and self-directedness in both cases and controls. Body mass index did not correlate with personality in either group. These findings should be verified by longitudinal studies with higher weight/weight recovered patients.


Kimura H.,Aichi Center for Industry and Science Technology | Kimura H.,Gifu University | Genda E.,Minami Seikyo Hospital | Nakamura K.,Chubu Rosai Hospital | And 2 more authors.
Proceedings of the SICE Annual Conference | Year: 2014

We developed an upper limb motion assist device for high cervical spinal cord injury. This device consists of an upper-limb motion-assist mechanism, a control system and a sensor. The upper limb motion assist mechanism has a spring and 4 DC motors. The upper limb is always supported in various postures by the same force as gravity exerts due to the elastic force of the spring. The device can be adjusted for upper limbs of different weight. The three-dimensional position of the wrist and the pronosupination motion are assisted by 4 DC motors controlled by a PC. For self-motion control, an acceleration sensor and switches are applied to measure the head motion. This device can assist with upper-limb motions, such as those required to eat independently in response to the head movements of the user. © 2014 SICE.


Lee J.,Chubu University | Mizumoto R.,Nagoya University | Obinata G.,Chubu University | Genda E.,Minami Seikyo Hospital | And 3 more authors.
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS | Year: 2015

A hip-knee-ankle-foot orthotic system called 'HALO'(Hip and Ankle Linked Orthosis) for paraplegic walking has been developed in our previous study. Each ankle joint of the HALO system is linked with a medial single joint via a wire which allows both feet of the orthosis to stay always parallel to the floor during walking and assists swinging the leg. The tests of the HALO system demonstrated that it allows smoother walking and easy don/doff. In order to improve further the characteristics of the previous design, we started a new project called pHALO aiming at further reducing of the energy expenditure during walking. As a difference from the previous solution where ankle joints were restrained, the new solution will incorporate two actuators to control the ankle joints angles. As an intermediate step from the development of the pHALO system, in this study we added to the existing system a feedback PI controller to control the ankle joint angle of the right foot in the push-off phase and conducted an experiment to evaluate the effect of the new design on the walking patterns and energy efficiency. The results showed longer stride length, faster gait speed, smaller variation of the CoG, and less energy consumption. © 2015 IEEE.


Pei Y.,Nagoya University | Kim Y.,EcoTopia Science Institute | Obinata G.,EcoTopia Science Institute | Genda E.,Minami Seikyo Hospital | Stefanov D.,Coventry University
International Journal of Advanced Robotic Systems | Year: 2012

In this study, we propose a new design method of motion and external force trajectories for the rehabilitation of inner shoulder muscles based on the biomechanical analysis of the upper limbs. The method is assumed to use a robot manipulator; therefore, it enjoys the advantage of providing 3-dimensional trajectories and applied forces to the patient. Both the trajectories of rehabilitation motion and the applied force by the robot are designed in the same planning stage, in order to maximize the rehabilitation efficiency evaluation function based on the biomechanical analysis of the patient for each joint's torque, each muscle's force, and each joint's reaction force. In order to focus the spotlight on the advantages of the proposed robot-aided method, an example is given for comparison with a weight-based method which is supposed to use a weight for providing force to the patient. The comparison demonstrates the advantage of the proposed method in a quantitative manner from several rehabilitation points of view. © 2012 Pei et al.;.


Pei Y.,Nagoya University | Kim Y.,EcoTopia Science Institute | Obinata G.,EcoTopia Science Institute | Genda E.,Minami Seikyo Hospital | Stefanov D.,Coventry University
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS | Year: 2012

In this paper, we propose a simultaneous design method of motion and external force trajectories for shoulder inner muscles in the robot-aided rehabilitation system, based on a biomechanical analysis of patient's body. The rehabilitation efficiency evaluation function was maximized by Genetic Algorithm (GA), where the structure of spline curves parameters are pre-defined, and the structural parameters are explored to design smooth rehabilitation motion and external force trajectories. © 2012 IEEE.


Pei Y.,EcoTopia Science Institute | Kim Y.,Korea Institute of Machinery and Materials | Obinata G.,EcoTopia Science Institute | Genda E.,Minami Seikyo Hospital | Stefanov D.,Coventry University
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS | Year: 2013

In this paper, we propose a simultaneous design method of motion and external force trajectories for knee joint rehabilitation based on the biomechanical analysis of the lower limb. In this method we assume to use two robots manipulators which provide forces and moments at shank and thigh. We developed a 7 degree of freedom musculoskeletal model of lower limb with 19 muscles. The valuation function of rehabilitation efficiency e has been maximized by Genetic Algorithm (GA) that refers to the musculoskeletal model and tunes motion trajectory of the robots and forces acting on the shank and thigh. © 2013 IEEE.


Pei Y.,EcoTopia Science Institute | Kim Y.,Korea Institute of Machinery and Materials | Obinata G.,EcoTopia Science Institute | Genda E.,Minami Seikyo Hospital | Stefanov D.,Coventry University
Proceedings of the SICE Annual Conference | Year: 2013

In this paper, we propose a method for lower limb robot-mediated rehabilitation that provides simultaneous design of the motion trajectories and external forces. Two robot-manipulators are used to provide forces to the shank and the thigh. The evaluation function of the training efficiency is analyzed and maximized further by a genetic algorithm that tunes motion trajectory and external forces.


Nagai C.,Nagoya University | Hisada S.,Nagoya University | Obinata G.,EcoTopia Science Institute | Genda E.,EcoTopia Science Institute | Genda E.,Minami Seikyo Hospital
Proceedings of the SICE Annual Conference | Year: 2013

Several types of hip-knee-Ankle-foot orthotic systems have been proposed for paraplegic walking during these decades. Hip and ankle linked orthosis (HALO) is compact one in those orthoses, which seeks to achieve a smoother-movement and user-easiness on its don/doff in paraplegic walking. The idea of HALO is to link two ankle joints with medial single joint via wires so that the orthosis keeps both feet always parallel to the floor while walking and assists swinging the leg. So as to reduce the consumption energy of walking with HALO, we have introduced two actuators to control the ankle-joints angles in this paper. The actuators placed at hip joint in HALO allow the orthosis to have more degree-of-freedom in walking movement. In addition, the actuators provide a propulsive force at the toe when the user pushes forward his body by crutches. The results of preliminary experiments with normal subjects show that the users can walk smoother and the proposed orthotic system will be able to reduce the users' consumption energy while walking.


Nagai C.,Nagoya University | Hisada S.,Nagoya University | Obinata G.,Nagoya University | Genda E.,Minami Seikyo Hospital
IEEE International Conference on Rehabilitation Robotics | Year: 2013

Several types of hip-knee-ankle-foot orthotic systems have been proposed for paraplegic walking during these decades. Hip and ankle linked orthosis (HALO) is compact one in those orthoses, which seeks to achieve a smoother-movement and user-easiness on its don/doff in paraplegic walking. The idea of HALO is to link two ankle joints with medial single joint via wires so that the orthosis keeps both feet always parallel to the floor while walking and assist the swinging of the leg. So as to reduce the consumption energy of HALO walking, we have introduced two actuators to control the ankle-joints angles in this paper. The actuators placed at hip joint in HALO allow the orthosis to have more degree-of-freedom and are able to provide a propulsive force the coupled user-orthosis system. The results of preliminary experiments with normal subjects show that the users can walk smoother and the proposed orthotic system will be able to reduce the users' consumption energy while walking. © 2013 IEEE.

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