Sources and References

Primary texts — Beauchamp and Childress, Principles of Biomedical Ethics, 8th ed. (Oxford). Harris, Pritchard, Rabins, and James, Engineering Ethics: Concepts and Cases, 6th ed. (Cengage).

Supplementary texts — Van de Poel and Royakkers, Ethics, Technology, and Engineering: An Introduction, 2nd ed. (Wiley-Blackwell). Monteiro, Engineers Investigate Engineering Failure (ASME). Johnson, Computer Ethics, 4th ed. (Prentice Hall).

Online resources — Tri-Council Policy Statement 2 (TCPS 2) for ethical research with humans in Canada. Canadian Council on Animal Care standards. PEO Code of Ethics; Engineers Canada Guideline on the Code of Ethics. Declaration of Helsinki (WMA). IEEE Code of Ethics. UNESCO Universal Declaration on Bioethics and Human Rights.

Chapter 1: Foundations of Ethics

1.1 Why Ethics for Biomedical Engineers

Engineers hold power: the capacity to design artifacts whose use affects life, health, and autonomy. Biomedical engineers compound this with direct interaction between their designs and the human body. Professional ethics — commitments engineers make to public welfare — is therefore not an extra but a defining constraint.

1.2 Ethical Theories

Consequentialist theories evaluate actions by outcomes (utilitarianism’s greatest good for the greatest number). Deontological theories evaluate by conformity to moral duties (Kant’s categorical imperative). Virtue ethics evaluates by character and excellence. Care ethics centres relationships and responsibility. No single theory resolves every case; ethical reasoning in practice draws on all.

Chapter 2: Professional Engineering Ethics

2.1 The Engineering Profession

In Canada, engineering is a self-regulating profession under provincial acts. The Professional Engineers Ontario Code of Ethics obliges its members to hold paramount the safety, health, and welfare of the public; to act with fairness and loyalty to the profession, associates, employers, and clients; to act with competence and refrain from misrepresentation. Analogous codes govern PEO’s counterparts across Canada.

2.2 Conflicts of Interest

A conflict of interest arises when a professional’s personal or financial interest could compromise judgment on behalf of another. Management requires disclosure, and sometimes recusal or independent review. Undisclosed conflicts — a consulting fee from a device manufacturer while evaluating its product — are the pattern case.

2.3 Whistleblowing

When an engineer identifies a substantial risk that is being ignored by the organization, the obligation to the public can conflict with obligations to employer. Internal escalation, documented in writing, is the first step; external disclosure to regulators is justified when internal channels fail and risk persists. Legal protections vary by jurisdiction; ethical protections are rooted in professional codes.

Chapter 3: Medical Ethics

3.1 Respect for Autonomy

Informed consent operationalizes autonomy. Consent requires disclosure (risks, benefits, alternatives), comprehension, voluntariness, and capacity. Special populations — minors, cognitively impaired, unconscious — require surrogate decision-making with appropriate authority. In device evaluation, the same logic applies to research subjects.

3.2 Beneficence and Non-Maleficence

Medicine’s traditional “first, do no harm” becomes a balancing between expected benefit and risk. Biomedical devices formalize this through risk–benefit determinations under ISO 14971 and regulatory submissions. Design changes that reduce risk but also reduce benefit require explicit justification.

3.3 Justice

Distributive justice asks how medical resources — access to devices, research benefits, priority in care — are allocated. Criteria include need, merit, equality, efficiency, and compensation. Procedural justice ensures fair decision-making process. Biomedical engineers contribute to justice through equitable design (inclusion of diverse populations) and pricing, and by attending to global-health inequities.

Chapter 4: Research Ethics

4.1 Human-Subject Research

In Canada, TCPS 2 governs research with humans. Its three core principles are respect for persons, concern for welfare, and justice. Research Ethics Boards review protocols for risk–benefit balance, informed consent, privacy, recruitment fairness, and data handling. Vulnerable populations — children, prisoners, economically disadvantaged — receive additional protections.

4.2 Historical Cases

The Nuremberg Code followed revelations of Nazi experimentation. The Declaration of Helsinki (1964, periodically revised) codifies principles for medical research. The Tuskegee syphilis study, revealed in 1972, led to the Belmont Report and modern U.S. regulation. The Havasupai case reframed consent for genetic research. Each case established that ethical lapses — however well-intentioned — produce enduring harm.

4.3 Animal Research

The Canadian Council on Animal Care applies the 3Rs: Replacement (use non-animal methods when scientifically valid), Reduction (minimize animals used), and Refinement (minimize suffering). Institutional Animal Care Committees review protocols. Biomedical engineers developing implantable devices commonly conduct acute and chronic animal studies; compliance is ethical and regulatory.

Chapter 5: Technology, Society, and the Environment

5.1 Technology Assessment

Technologies carry unintended consequences. Constructive technology assessment engages stakeholders early to surface concerns; anticipatory governance and responsible innovation frameworks formalize this engagement. Biomedical devices embedded in clinical workflows, surveillance systems, or consumer markets each raise different societal questions.

5.2 Data, Privacy, and Algorithmic Fairness

Biomedical devices increasingly collect data — genomic, physiologic, behavioural — whose secondary use has implications beyond clinical care. Privacy legislation sets floors; engineering practice — data minimization, encryption, access control, de-identification — sets achievable ceilings. Algorithmic systems may produce disparate outcomes across populations when training data misrepresents those populations; audit and mitigation are engineering responsibilities, not externalities.

5.3 Environmental Responsibility

Medical devices generate waste streams: single-use plastics, batteries, electronic waste, and pharmaceutical residues. Life-cycle assessment and design-for-environment quantify impact from extraction through disposal. The tension between sterility and sustainability is real; solutions include reprocessable devices, bio-based materials, and take-back programs. Climate change itself is a growing biomedical concern through heat, air quality, and infectious-disease shifts.

Chapter 6: Ethical Reasoning in Practice

6.1 Case-Based Reasoning

Real cases rarely fit a single theoretical lens. Casuistry proceeds by analogy to paradigm cases, identifying ethically relevant features and weighing competing considerations. A structured approach — identify stakeholders, list ethical issues, apply theories, consider alternatives, reason to a decision — supports defensible practice.

6.2 Organizational Ethics

Individuals act within organizations whose structures and cultures shape behaviour. Codes of conduct, ethics hotlines, and training matter less than management tone and reward systems. Organizations that punish bad news receive less of it, with predictable consequences. Engineers entering leadership shape these structures; their influence on organizational ethics often exceeds any individual design decision.

6.3 Global and Intercultural Dimensions

Biomedical technology crosses borders. What is standard practice in one setting may be unfamiliar or unacceptable in another. Cultural humility — recognizing that one’s own frame is not universal — is not relativism; it is a prerequisite for designing and deploying technologies that respect local context. International frameworks (UN Declaration on Bioethics, WHO guidelines) provide anchors without overriding local ethical deliberation.