This concept is intended to help develop a course of lectures specially aimed at training medical engineering students within
the scope of Engineering or Bachelor studies at an institute of higher education.
It should contain and illustrate basic aspects regarding the
content of a course of lectures with its emphasis on “Safety
in Medical Engineering”.
This instructional concept should also provide information
and procedural instructions on drafting a lecture or lecture manuscript.
Table of Contents
1. Introduction
2. Safety in Medical Engineering
3. Aims of the Course
4. Legal Regulations
5. Tasks of a Medical Engineer
6. Mechanical Safety
7. Electrical Safety
7.1 Current, Voltage, Resistance
7.2 Resistances in the Human Body
7.3 Effects of Electricity on the Human Body
7.4 Electrical Safety Precautions
7.5 Power Supply Systems
7.6 IEC Protection Classes
7.7 Classification of Locations Used for Medical Purposes
7.8 Currents and Leakage Currents in Medical Engineering
7.9 Electrical Safety Measurements
7.10 Safety-Related Controls
8. Conclusion
Objectives and Core Topics
The primary objective of this work is to establish a structured instructional framework for a university-level lecture course on "Safety in Medical Engineering," providing educators with a curriculum that bridges theoretical safety regulations with practical application for future medical engineers.
- Theoretical foundations of electrical, mechanical, and hygienic safety in medical devices.
- Application of relevant legal regulations, directives, and international standards.
- Professional role definition for medical engineers in development, sales, and service.
- Integration of laboratory experiments to demonstrate safety-related measurements.
- Methodology for conducting technical safety controls (STK) and assessing equipment risk.
Excerpt from the Book
Resistances in the Human Body
In order to expand on the resistance values within the human body, an insight must be provided with regard to establishing the values as well as drawing up and producing resistance tables. Help here takes the form of the initial attempts to establish resistance values from animals (pigs, dogs, sheeps). The transfer and conversion of these experimentally established values to the human body and its peculiarities represents the educational objective. Key topics for elaboration in respect of these resistance values and emphasising the special features of the skin or organ resistance include the structure of human tissue, skin characteristics, current frequency, transition resistance, exposure time, age and constitution of the person.
In order to elucidate the flow of current through the human body or specific bodily impedances, it is helpful to complete a harmless experiment on oneself using a 9 V battery and / or a bell transformer. The students can then discover the various type-related transition resistances on the human body using simple means. In addition, this resource (voltage source, current flow and body resistance) can also be used to recapitulate the Ohm’s Law and illustrate it according to a practical example.
Summary of Chapters
Introduction: Outlines the purpose of the concept as a teaching guide for higher education students in medical engineering.
Safety in Medical Engineering: Defines the multi-faceted nature of safety and emphasizes the need for practical laboratory experience.
Aims of the Course: Lists the pedagogical objectives, including responsible device handling and application of standards.
Legal Regulations: Provides a curated list of essential German and international laws, directives, and standards like the MPG and DIN EN 60601-1-2.
Tasks of a Medical Engineer: Categorizes the profession into development, sales, and service, highlighting specific educational needs for each.
Mechanical Safety: Discusses the necessity of materials science and construction technology knowledge, including topics like aging of plastics and ergonomic design.
Electrical Safety: Represents the core technical section covering currents, human body impedance, safety precautions, and protection classes.
Conclusion: Re-emphasizes the necessity of combining theory with laboratory practice to effectively teach safety concepts.
Keywords
Medical Engineering, Electrical Safety, Mechanical Safety, Legal Regulations, DIN EN 60601-1-2, Medical Devices Act, Patient Safety, Technical Safety Controls, Leakage Current, Protection Classes, Human Body Resistance, Laboratory Education, Risk Prevention, Medical Equipment, Standards
Frequently Asked Questions
What is the primary scope of this work?
This work provides a didactic concept for a university lecture course dedicated to the safety of medical devices and equipment, ensuring students are well-prepared for professional practice.
Which specific areas of safety are covered?
The text focuses primarily on electrical safety while acknowledging the roles of mechanical, chemical, and hygienic safety within the broader field of medical engineering.
What is the central research question or goal?
The goal is to provide a structured "common thread" for curriculum development that links theoretical safety standards with practical, hands-on laboratory experience.
Which scientific and legal methods are emphasized?
The curriculum relies on established standards (such as DIN VDE, IEC, and the German MPG) and suggests empirical teaching methods, including experiments with real medical devices and risk-assessment tasks.
What topics are included in the main body?
The main body covers a wide range, from legal frameworks and professional roles for medical engineers to specific technical topics like Ohm's Law in the human body, protection classes, and network systems.
Which keywords best characterize the curriculum?
The curriculum is characterized by terms like Medical Engineering, Electrical Safety, Technical Safety Controls, and the application of international safety standards like IEC 60601.
Why is the "Classification of Locations" important for students?
It is vital because the assigned location group (Group 0-2) dictates how electrical safety precautions and installations must be designed in medical environments like hospitals or operating theaters.
How does the author propose to teach "Electrical Safety Measurements"?
The author suggests that theoretical knowledge must be consolidated through high-priority laboratory experiments, using professional measuring instruments to eliminate student apprehension regarding equipment.
- Quote paper
- Thomas Lekscha (Author), 2010, Concept for the Development of a Course of Lectures at Higher Education Level for Training Students of Medical Engineering, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/159741
