Design of a 3D printed lightweight orthotic device based on twisted and coiled polymer muscle: iGrab hand orthosis

2017 ◽  
Author(s):  
Lokesh Saharan ◽  
Ashvath Sharma ◽  
Monica Jung de Andrade ◽  
Ray H. Baughman ◽  
Yonas Tadesse
Keyword(s):  
Orthotic Device ◽  
3D Printed

Design and Analysis of a Novel Lightweight, Energy Economic Powered Knee Orthotic Device

2019 ◽  
Vol 13 (3) ◽  
Author(s):  
Saikat Sahoo ◽  
Aditya Jain ◽  
Dilip Kumar Pratihar
Keyword(s):  
Knee Joint ◽  
Power Consumption ◽  
Three Dimensional ◽  
Fast Response ◽  
Design Parameters ◽  
Angular Deviation ◽  
Natural Behavior ◽  
Orthotic Device ◽  
3D Printed ◽  
Novel Design

The task of a powered knee orthotic device (PKOD) is to assist the knee joint so that its natural behavior can be restored. The key features of a PKOD that may help to regain such characteristics are low power consumption, fast response, compactness, and lightweight. This study proposes a novel design of PKOD, where we have focused on the betterment of the mentioned features with the help of a new mechanism, namely a four-bar controlled compliance actuator (FCCA). In FCCA, instead of using the widely used screw transmission mechanism, a four-bar mechanism is used to modify the joint's angular deviation and stiffness. The main advantages of using FCCA over other existing mechanisms are to reduce the power consumption by amplification of input motor torque and to achieve a faster response at the same time, and these are achieved by utilizing a simple four-bar mechanism. In the proposed design, FCCA controls both the stiffness of the artificial knee joint using a compliance mechanism as well as knee flexion with the help of a pulley arrangement. A three-dimensional (3D)-printed prototype of the proposed design has been developed, after optimizing the inherent design parameters. Simulation and experimental analysis are carried out in order to justify the performance of the proposed PKOD. The results have shown strong agreement with that obtained using analytical study and optimization. Moreover, the torque amplification is achieved, as desired.

scholarly journals Evaluation of a Customized 3D Printed ORGAN-Hand Orthotic Device for Unilateral Cerebral Palsy: a Pilot Study

2021 ◽  
Author(s):  
Priyanka Madaan ◽  
Nirmal Raj Gopinathan ◽  
Lokesh Saini ◽  
Aarti Chauhan ◽  
Harpreet Singh ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Pilot Study ◽  
Orthotic Device ◽  
3D Printed ◽  
Unilateral Cerebral Palsy

3D Printed Models for Surgical Planning and Reconstructive Implant Design in Sphenoorbital Tumor Surgery

2016 ◽  
Vol 77 (S 02) ◽  
Author(s):  
Hassan Othman ◽  
Sam Evans ◽  
Daniel Morris ◽  
Saty Bhatia ◽  
Caroline Hayhurst
Keyword(s):  
Surgical Planning ◽  
Implant Design ◽  
Tumor Surgery ◽  
3D Printed

That which Is Unseen: A 3D-Printed Case-Based Didactic Approach to Teaching Pediatric Cerebrovascular Neurosurgery

2019 ◽  
Author(s):  
Avital Perry ◽  
Soliman Oushy ◽  
Lucas Carlstrom ◽  
Christopher Graffeo ◽  
David Daniels ◽  
...  
Keyword(s):  
3D Printed ◽  
Approach To Teaching ◽  
Case Based

Bioresorption and biodegradation of the 3D-printed gene-activated bone substitutes based on octacalcium phosphate

2020 ◽  
Vol XV (1) ◽  
Author(s):  
E. Presnyakov ◽  
I. Bozo ◽  
I. Smirnov ◽  
V. Komlev ◽  
V. Popov ◽  
...  
Keyword(s):  
Bone Substitutes ◽  
Octacalcium Phosphate ◽  
3D Printed
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