Designsafe studies in Biomedical and Mechanical Engineering By
Designsafe studies in Biomedical and Mechanical Engineering By Sebastien A. Daleyden Vincent M. Goussen Advisors: Dr Paul King & Bruce Main
ICAM: Institut Catholique d’Arts et Metiers • • Advanced school of engineering in France Last five years Mechanical engineering Exchange students for 5 months
Designsafe studies in Biomedical and Mechanical Engineering • • • Project proposal About safety Completed work Current work Next steps
Project proposal Safety through design, with the use of Designsafe • Objective 1: – 1. Benchmarking study comparing Europe and the US in safety – 2. Evaluating designsafe for its suitability to the European market, – 3. Translation of designsafe to European language(s) • Objective 2: – Helping students of BME 273 and ME 243 on safety issues
Importance of safety in design Unintentional injuries • Every year 30 millions injuries occur due to manufactured products. – 21 % Design defects – 25 % Inadequate guarding – 44 % Inadequate warning • Cost of $399 billion a year only in the USA; • Fifth leading cause of death; • Due to interaction between machines and their environment and the way people live and work Engineers should more think about the safety of the users. . . Sources: National safety council (NSC) American Society of Safety Engineers (ASSE)
Importance of safety in design The main reasons why we should more care about safety are: · Time · Costs · Competition · International Influences · Capturing knowledge · Product liability
Hazard analysis: What is it? Objectives: Tool for engineers and safety practitioners to • identify possible hazards, • provide an evaluation of the risks, • prompt alternative design solutions to mitigate or control the risks to an acceptable level.
Hazard analysis: What is it? Hazard: Potentially dangerous condition, which is triggered by an event, called the cause of the hazard. Risk: hazard that is associated with a severity and a probability of occurrence.
Hazard analysis: What is it? Hazard analysis: Identify all possible hazards potentially created by a product, process or application. Risk assessment: It is the next step after the collection of potential hazards. Risk in this context is the probability and severity of the hazard becoming reality. European standard: EN 1050, Safety of machinery, Principles for risk assessment A guidance for decisions during the design of machinery in order to comply with the essential safety and health requirements.
Hazard analysis: What is it? Hazard analysis flowchart Example of risk matrix used
An useful engineers’ tool: Designsafe dse has developed a fast, easy-to-use tool for engineers and safety professionals to incorporate safety through design by: · identifying hazards · prompting engineers to think about hazards which they otherwise might overlook · conducting a risk assessment for identified hazards · reducing risks in a structured method · preventing accidents and reducing liability · Answering to the EN 1050 requirements
An useful engineers’ tool: Designsafe
An useful engineers’ tool: Designsafe
Work completed • Built a background on safety (hazard analysis & risk assessment, CE norms…) • Learnt the use of Designsafe • Prepared a course on hazard analysis and on Designsafe for the ME 243 • Assisted to all presentations of BME 273 class that require a DS analysis • found the main safety websites and safety organizations, a list is available on our homepage (Benchmarking). • Sent surveys to non US Designsafe demo downloader, and international safety organizations. • Meet Bruce Main in Ann Arbor, MI.
Current work Benchmarking : • Settling designsafe as a reference (weaknesses, strong points) • Criteria of analysis: Field of activity (medical, food, chemical, semi-conductor, robotic…), compliance, ease of use, cost, communication, languages, effectiveness. . . • Our sources: Internet, feedback of the surveys, study of competitors Students projects: BME: pancreatic enzyme delivery device Uterine Retraction Device Bi-ventricular Assist Device Customization of Teaching Resources ME: Race car Moonbuggy
Future work • Keep on the benchmarking • Recommendations on where to focus efforts for DS version 2 • DS French version • Involving in students’ projects • Preparation of TN Biomedical Engineering conference
For more information…. Please visit our homepage : http: //vubme. vuse. vanderbilt. edu/group 34_99/ Thanks for your patience and understanding !
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