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

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

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