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Safety Risk Management for Medical Devices

  • 2nd Edition - November 11, 2021
  • Latest edition
  • Author: Bijan Elahi
  • Language: English

Safety Risk Management for Medical Devices, Second Edition teaches the essential safety risk management methodologies for medical devices compliant with the requirements of ISO 14… Read more

Description

Safety Risk Management for Medical Devices, Second Edition teaches the essential safety risk management methodologies for medical devices compliant with the requirements of ISO 14971:2019. Focusing exclusively on safety risk assessment practices required in the MedTech sector, the book outlines sensible, easily comprehensible, state-of the-art methodologies that are rooted in current industry best practices, addressing safety risk management of medical devices, thus making it useful for those in the MedTech sector who are responsible for safety risk management or need to understand risk management, including design engineers, product engineers, development engineers, software engineers, Quality assurance and regulatory affairs.

Graduate-level engineering students with an interest in medical devices will also benefit from this book. The new edition has been fully updated to reflect the state-of-the-art in this fast changing field. It offers guidance on developing and commercializing medical devices in line with the most current international standards and regulations.

Key features

  • Includes new coverage of ISO 14971:2019, ISO/TR 24971
  • Presents the latest information on the history of risk management, lifetime of a medical device, risk management review, production and post production activities, post market risk management
  • Provides practical, easy-to-understand and state-of the-art methodologies that meet the requirements of international regulation

Readership

Engineers and other professionals in the MedTech sector who are responsible for safety risk management or need to understand risk management, including design engineers, product engineers, development engineers, software engineers, Quality assurance and regulatory affairs. Graduate-level engineering students with an interest in medical devices will also benefit from this book.

Table of contents

1 Introduction

1.1 History of risk Management

2 What Is A Medical Device?

3 Why Do Risk‐Management?

3.1 Legal and Regulatory Requirements

3.2 Business Reasons

3.3 Moral and Ethical Reasons

4 The Basics

4.1 Vocabulary of Risk Management
Reasonably Foreseeable Misuse

4.2 Hazard Theory

4.3 System and System Types

5 Understanding Risk

5.1 Risk Definitions

5.2 Types of Risk

5.3 Contributors to Risk

5.4 Risk Perception

5.5 Risk Computation

6 Risk Management Standards

6.1 ISO 14971 History and Origins

6.2 Harmonized Standards

7 Requirements of the Risk Management Process

7.1 Risk Management Process

8 Quality Management System

9 Usability Engineering and Risk Analysis

9.1 Key Terms

9.2 Distinctions

9.3 User‐Device Interaction Model

9.4 Use Errors

9.5 Environmental Factors

9.6 Design Means to Control Usability Risks

9.7 Task Analysis

9.8 Usability and Risk

10 Biocompatibility and Risk Management

11 Influence of Security on Safety

12 The BXM Method

12.1 System Decomposition

12.2 Integration

12.3 Quantitative Risk Estimation

13 Risk Management Process

13.1 Management Responsibilities

13.2 Risk Management File

13.3 Risk Management Plan

13.4 Hazard Identification

13.5 Clinical Hazards List

13.6 Harms Assessment List

14 Risk Analysis Techniques

14.1 Fault Tree Analysis

14.2 Mind Map Analysis

14.3 Preliminary Hazard Analysis

14.3.1 Introduction

14.3.2 Methodology

14.4 Failure Modes and Effects Analysis

14.4.1 Facilitation of FMEAs

14.4.2 Hierarchical Multi‐Level FMEA

14.4.3 Failure Theory

14.4.4 Ground Rules

14.4.5 Criticality Ranking

14.4.6 Benefits of FMEA

14.4.7 FMEA Weaknesses

14.4.8 Ownership of FMEA

14.4.9 Deciding When to Perform an FMEA

14.4.10 Making Your Way Through the FMEA

14.4.11 Revisiting FMEAs

14.5 FMEA in the context of Risk Management

14.6 Design Failure Modes and Effects Analysis (DFMEA)

14.6.1 DFMEA Workflow

14.7 Process Failure Modes and Effects Analysis (PFMEA)

14.7.1 PFMEA Workflow

14.8 Use/Misuse Failure Modes and Effects Analysis (UMFMEA)

14.8.1 Distinctions

14.8.2 Use Specification vs. Intended Use

14.8.3 UMFMEA Workflow

14.9 P‐Diagram

14.10 Comparison of FTA, FMEA

15 Software Risk Management

15.1 Software Types

15.2 Software Risk Analysis

15.3 Software FMEA (SFMEA)

15.4 Software Safety Classification

15.5 The BXM Method for Software Risk Analysis

15.6 Risk Management File Additions

15.7 Risk Controls

15.8 Legacy Software

15.9 Software of Unknown Provenance

15.10 Software Maintenance and Risk Management

15.11 Software Reliability vs. Software Safety

15.12 Tips for Developing Safety‐Critical Software

16 Integration of Risk Analysis

16.1 Hierarchical Multi‐Level FMEA

16.2 Integration of Supplier Input into Risk Management

17 Risk Estimation

17.1 Qualitative Method

17.2 Semi‐Quantitative Method

17.3 Quantitative Method

17.4 Individual and Overall Residual Risks

17.5 Pre/Post Risk

17.6 Risks that Cannot be Estimated

18 Risk Controls

18.1 Single‐Fault‐Safe Design

18.2 Risk Control Option Analysis

18.3 Distinctions of Risk Control Options

18.4 Information for Safety as a Risk Control Measure

18.5 Distinction of Types Information for Safety

18.6 Sample Risk Controls

18.7 Risk Controls and Safety Requirements

18.8 Completeness of Risk Controls

19 Verification of Risk Controls

19.1 Verification of Implementation

19.2 Verification of Effectiveness

20 On Testing

20.1 Types of Testing

20.2 Risk‐Based Sample Size Selection

20.3 Attribute Testing

20.4 Variable Testing

21 Risk Evaluation

21.1 Application of Risk Acceptance Criteria

21.1.1 How to Determine the State‐of‐the‐Art

21.2 Risk Evaluation for Qualitative Method

21.3 Risk Evaluation for Semi‐Quantitative Method

21.4 Risk Evaluation for Quantitative Method

22 Risk Assessment and Control Table (RACT)

22.1 RACT Workflow

22.2 Individual and Overall Residual Risks

22.3 Inherent Risks

23 Benefit‐Risk Analysis

23.1 What is a Benefit?

23.2 Balancing Benefits against Risks

23.3 Benefit‐Risk Analysis in Clinical Studies

24 Risk Management Review

25 Production and Post‐Production Activities

25.1 Regulatory Basis

25.2 The Purpose of Post‐Market Activities

25.3 Post‐Market Risk Management

25.4 The Elements of Post‐Market Risk Management

25.4.1 Post‐Market Surveillance

25.4.2 Post‐Market Clinical Follow‐up (PMCF)

25.4.3 Complaint Handling and Monitoring

25.4.4 Post‐Market Risk Management Actions

25.5 Deliverables of Post‐Market Risk Management

25.5.1 Summary of Safety and Clinical Performance (SSCP)

25.5.2 Periodic Safety Update Report (PSUR)

25.5.3 Post‐Market Surveillance Report (PMSR)

25.5.4 Manufacturer Incident Report (MIR)

25.5.5 Medical Device Reporting (MDR)

25.6 Clinical Evaluation

25.7 Frequency of Risk Management File Review

25.8 Feedback to Pre‐Market Risk Management

25.9 Benefits of Post‐Market Surveillance

26 Traceability

27 Lifetime of a Medical Device

28 Safety versus Reliability

29 Risk Management for System of Systems

30 Risk Management for Clinical Investigations

31 Risk Management for Legacy Devices

32 Risk Management for Combination Medical Devices

33 Basic Safety and Essential Performance

34 Relationship between ISO 14971 and other Standards

34.1 Interaction with IEC 60601‐1

34.2 Interaction with ISO 10993‐1

34.3 Interaction with IEC 62366

34.4 Interaction with ISO 14155

35 Risk Management Process Metrics

36 Risk Management and Product Development Process

36.1 Identification of Essential Design Outputs

36.2 Lifecycle Relevance of Risk Management

37 Risk Management for Suppliers

37.1 Manufacturer Perspective

37.2 Supplier Perspective

38 Axioms

39 Special Topics

39.1 The conundrum

39.2 Cassandras

39.3 Personal Liability

39.4 Creating a Safety Culture

39.5 Predicting the Future

40 Critical Thinking and Risk Management

41 Advice and Wisdom
Appendix A ‐ Glossary
Appendix B – Templates
B.1 DFMEA Template
B.2 SFMEA Template
B.3 PFMEA Template
B.4 UMFMEA Template
B.5 RACT Template
Appendix C – Example Device – Vivio
C.1 Vivio Product Description
C.2 Vivio Product Requirements
C.3 Vivio Architecture
C.4 Risk Management Plan
C.5 Clinical Hazards List
C.6 Harms Assessment List
C.7 Preliminary Hazard Analysis
C.8 Design Failure Modes and Effects Analysis (DFMEA)
C.9 Process Failure Modes and Effect Analysis (PFMEA)
C.10 Use/Misuse Failure Modes and Effects Analysis (UMFMEA)
C.11 Risk Assessment and Controls Table (RACT)
C.12 Full Body Report
C.13 Risk Management Report
Appendix D – Useful References


Product details

  • Edition: 2
  • Latest edition
  • Published: November 11, 2021
  • Language: English

About the author

BE

Bijan Elahi

Bijan Elahi is an expert on a world scale in safety risk management for medical technology. Mr. Elahi’s mission is to elevate knowledge and proficiency in medical device risk management to the highest levels worldwide via teaching, coaching, and mentoring, for the benefit of companies and society. He has 30+ years of experience in risk management, working with the largest medical device companies in the world, as well as with small start-ups. He is a lecturer at Eindhoven University of Technology (the Netherlands), where he teaches a graduate-level course in medical device risk management. The audience for this education is doctoral students in engineering as well as physicians and professionals in the medical device sector. Additionally, Mr. Elahi is a lecturer at Drexel University in Philadelphia (USA), and at Delft University of Technology (Netherlands). He is the recipient of the Educator of the Year Award by the International System Safety Society. In 2019 he received an award in recognition of Outstanding Development of Analytical Methods to Support Medical Device System Safety. Mr. Elahi has a long history of medical device development spanning class III implantable pulse generators, electro-mechanical, and disposable devices. His most recent product was a Deep Brain Stimulator (DBS) implant for Parkinson’s disease. The knowledge that he imparts in his book is rooted in state-of-the-art practical knowledge in medical device development. Mr. Elahi is a Technical Fellow and a corporate advisor at Medtronic. In this role, he teaches and consults on medical device risk management to all Medtronic business units worldwide, including China, India, Middle East, Europe and North America. Mr. Elahi is a contributor to ISO 14971, and a member of the Editorial Board of the Journal of System Safety, a publication of the International System Safety Society. Mr. Elahi is a frequently invited speaker and lecturer at international conferences. Earlier in his distinguished career, he was a systems engineer on the Space Shuttle at NASA (USA). Mr. Elahi holds an MS Electrical Engineering degree from the University of Washington and a BS Aerospace Engineering degree from Iowa State University, United States.
Affiliations and expertise
International Council on Systems Engineering (INCOSE), International System Safety Society (ISSS), European Institute of Innovation and Technology (EIT Health), FL, USA

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