Development of a New Pericardiocentesis Assist Device: Design Proposal and Evaluation of the Pericardium Grasping Mechanism

2016 ◽  
Vol 28 (4) ◽  
pp. 591-599
Author(s):  
Yuta Fukushima ◽  
◽  
Ryo Akita ◽  
Kiyoshi Naemura ◽  
Hiroyuki Tsukihara ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Elastic Force ◽  
The Finite Element Method ◽  
Assist Device ◽  
Device Model ◽  
Grasping Force ◽  
Design Proposal ◽  
Porcine Pericardium

[abstFig src='/00280004/16.jpg' width='300' text='The pericardium grasp mechanism for pericardiocentesis' ] Complication ratio of the pericardiocentesis was reported 4.7%, due to the procedure using needle. To decrease complication of the pericardiocentesis, purposes of this study was to develop a new pericardiocentesis assist device without needle. The proposed device was able to aspirate fluid inside the pericardial space by grasping and cutting the pericardium. To cut the pericardium, the device needed to grasp the pericardium surely. In this paper, we designed pericardium grasping mechanism. The result of the structural analysis using the finite element method showed proposed grasping mechanism could keep grasping force of 120 N and pericardium elastic force of 2.7 N without fracture. Results of in vitro porcine pericardium grasping experiment using a proposed device model showed that the pericardium grasping force was elucidated to need more than 7.5 N, while the pericardium elastic force was 2.44 N. The proposed pericardium grasping mechanism could grasp a porcine pericardium securely without fracture.

Comparative analysis of adhesive failure of orthodontic resins: An in vitro mechanical test with the finite element method

2013 ◽  
Vol 2 (2) ◽  
pp. 124
Author(s):  
OrlandoMotohiro Tanaka ◽  
AnaLeticia Rocha Avila ◽  
Ana PaulaGebert de Oliveira Franco ◽  
MildredBallin Hecke ◽  
Marco AntonioAmorin Vasco ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Comparative Analysis ◽  
Mechanical Test ◽  
The Finite Element Method ◽  
Adhesive Failure ◽  
Element Method

scholarly journals Biomechanical analysis of titanium plate systems in mandibular condyle fractures: a systematized literature review

2012 ◽  
Vol 27 (6) ◽  
pp. 424-429 ◽  
Author(s):  
Fábio Wildson Gurgel Costa ◽  
Marcelo Ferraro Bezerra ◽  
Thyciana Rodrigues Ribeiro ◽  
Ernest Cavalcante Pouchain ◽  
Vicente de Paulo Aragão Sabóia ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mandibular Condyle ◽  
In Vitro Studies ◽  
Biomechanical Analysis ◽  
Computational Studies ◽  
The Finite Element Method ◽  
Eligibility Criteria ◽  
Systematized Review

PURPOSE: To conduct a systematized review of the literature about the main methodologies used to evaluate the biomechanical fixation systems with titanium plates in fractures of the mandibular condyle. METHODS: A systematized review of literature was performed in the electronic databases PubMed, EMBASE, LILACS and MEDLINE without restriction of the publication date. The eligibility criteria were laboratory studies involving mandibular condyle fractures, studies using titanium plates, biomechanical studies, in vitro and computational studies involving the finite element method (FEM). RESULTS: Eleven articles that met the eligibility criteria were selected, including seven articles involving in vitro studies and four studies with biomechanical analysis by using FEM. CONCLUSION: Although few articles have used the finite element method, the results of in vitro studies were similar to those found in computational studies, regarding to the stable use of two titanium miniplates.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

Sign in / Sign up

Export Citation Format

Share Document