Development of a hand exoskeleton system for index finger rehabilitation

Li, Jiting; Wang, Shuang; Ju, Wang; Zheng, Ruoyin; Zhang, Yuru; Chen, Zhongyuan

doi:10.3901/cjme.2012.02.223

Cited by 47 publications

(17 citation statements)

References 12 publications

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“…Penelitian di dunia telah sangat maju berkaitan dengan exoskeleton [2][3][4][5][6][7][8]. Beberapa diantaranya berkaitan dengan upaya membantu pasien untuk dapat memulihkan kembali gerakan tangan melalui proses terapi sehingga proses pemulihannya bisa lebih cepat.…”

Section: Pendahuluanunclassified

Analisis Kekuatan Struktur Wereable Elbow Exoskeleton untuk Penderita Kelumpuhan Gerak Siku Menggunakan Finite Element Method (FEM)

Ismail

Sitanggang

Ariyanto

2019

Rot.

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The development of wearable elbow exoskeletons is in line with the development of robotics, where for some purposes to be used requires adjustments to material use. In the development of robotics, the types of robots are divided into 2 types, namely hard robotic and soft robotic based on the material used. On robotic wearable exoskeletons also adapting material developments that can support ergonomic values for patients to use it more comfortably. In Indonesia, research on elbow exoskeletons has been carried out (Ismail, 2018), but it is necessary to test the structural strength of these therapeutic devices. In this study we will discuss the strength of the structure of the Wearable Elbow Exoskeleton that has been designed using the Finite Element Method where objects consist of an infinite number of elements that compose them. In the absence of the finite element method it will be very difficult to analyze the stress or deformation. To facilitate the analysis it can be assumed that an object consists of a finite number of elements. The finite element method is a method that approaches by assuming an object consists of finite elements. These elements are considered separate and are connected to a point called a nodal point so that it forms a net, the smaller the size of the element, the smaller the error that arises. The simulation process is given some limitations that are used in the simulation. In boundary condition, we determine the loads that work on the geometry and what supports are used in geometry. The boundary condition specified in the simulation must be as much as possible with the actual conditions, because it will affect the results that will be obtained in the simulation process. From the simulation results obtained in the motor-linkage section the maximum voltage is 0.0016 MPa and safety factor of 13.05, the maximum linkage received is 58.461 MPa and the safety factor is 3.561, while the base maximum voltage received is 7.624 MPa and the safety factor amounting to 3,542. From these results it can be concluded if the parts that are considered prone to failure are considered to have sufficient safety factors to be used even at the maximum stress Keywords: Finite element method; von mises; brachialis plexus injury ABSTRAK

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Section: Pendahuluanunclassified

Analisis Kekuatan Struktur Wereable Elbow Exoskeleton untuk Penderita Kelumpuhan Gerak Siku Menggunakan Finite Element Method (FEM)

Ismail

Sitanggang

Ariyanto

2019

Rot.

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“…According to statistics, nowadays there are more than 20 million physically disabled people in China, accounting for 2% of the total population. Therefore, artificial prosthetic hands play an important role in improving the lives of people with disabilities and in medical rehabilitation [6,7]. However, current famous humanoid hand in the world like iLimb (Touch Bionics Inc.), Vicent Hand (Vicent Inc.), and Bebionic hand (Otto Bock Inc.) are still far away from this goal [8].…”

Section: Introductionmentioning

confidence: 99%

Design of 3D-Printed Cable Driven Humanoid Hand Based on Bidirectional Elastomeric Passive Transmission

Chen

Zhao

Ma³

et al. 2020

Preprint

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Motion control of the human hand is the most complex part of the human body. It has always been a challenge for a good balance between the cost, weight, responding speed, grasping force, finger extension, and dexterity of prosthetic hand. In order to research and imitate the movement of the human hand, a 3D-printed cable driven humanoid hand based on bidirectional elastomeric passive transmission (BEPT) is designed in this paper. A semi-static model of BEPT is investigated based on energy conservation law to analyze the mechanical properties of BEPT. Then a simulation of dynamics of finger grasping is conducted. For a better imitation of human hand and a better grasping performance, specific BEPT is selected according to human finger grasping experiments. The advantage of BEPT based humanoid hand is that a good balance between the price and performance of the humanoid hand is achieved. Experiments proved that designed humanoid hand’s excellent grasping performance can be realized through BEPT. The designed prosthetic hand’s single fingertip force can reach 33N and has a good force control effect with 430g’s weight. It can not only grab fragile objects like raw eggs and paper cup, but also achieve strong grasping force to damage metal cans.

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“…A development of a hand exoskeleton system for index finger rehabilitation is presented in [6]. A survey on robotic devices for upper limb rehabilitation, including those in developing phase in order to provide a comprehensive reference about existing solutions and facilitate the development of new and improved devices, is achieved in reference [7].…”

Section: Introductionmentioning

confidence: 99%

Development of Robotic Gloves for Hand Rehabilitation Post-Stroke

Popescu

Ivănescu

Manoiu-Olaru

et al. 2015

2015 20th International Conference on Control Systems and Computer Science

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This paper presents the hardware and software developments that have been achieved and implemented in the robotic gloves for hand rehabilitation post-stroke. The practical results are shown that prove the functionalities of the robotic gloves in common operating conditions. This work focused on development of a lightweight and low-cost robotic glove that patients can wear and use to recover hand functionality. We developed some structures for the robotic glove, as exoskeleton and as soft robotic glove. The paper presents a comparison of these structures.

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Development of a hand exoskeleton system for index finger rehabilitation

Cited by 47 publications

References 12 publications

Analisis Kekuatan Struktur Wereable Elbow Exoskeleton untuk Penderita Kelumpuhan Gerak Siku Menggunakan Finite Element Method (FEM)

Analisis Kekuatan Struktur Wereable Elbow Exoskeleton untuk Penderita Kelumpuhan Gerak Siku Menggunakan Finite Element Method (FEM)

Design of 3D-Printed Cable Driven Humanoid Hand Based on Bidirectional Elastomeric Passive Transmission

Development of Robotic Gloves for Hand Rehabilitation Post-Stroke

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