Did You Know?

According to the U.S. Bureau of Labor, employment of biomedical engineers is projected to grow 23% through 2024!

This rate of growth is much faster than the average engineering discipline. Growing technology and its application to medical equipment and devices, along with an aging population, will increase demand for the work of biomedical engineers.

For more information about job growth in the engineering industry, check out this article from Design News.

repairing machine

New in the Library!

The BMET Library is now on Twitter! Follow us to get updates about the latest developments in the lirbary and the field of biomedicine.

Facebook Link Join us on Facebook

Join our Facebook group "EWH's BMET Library" to connect with our staff and technicians around the world. Post questions, provide answers to technical problems, or give suggestions in the group to connect with the BMET community. Search for "EWH's BMET Library" on Facebook or click the icon above to join!

Email Us:

For questions, suggestions, and to join our mailing list, please email us at library@ewh.org. We look forward to hearing from you!


If you own or know of open-source materials you would like to see included in our library, email us at library@ewh.org to discuss options for incorporating them.

About Us

The Biomedical Equipment Technician (BMET) Library is a free library containing resources for biomedical professionals in the developing world. Resources encompass topics from repair, maintenance, and troubleshooting of medical devices to Healthcare Technology Management (HTM), science, and mathematics.

Created by Engineering World Health (EWH) and Robert Malkin's Developing Healthcare Technologies Laboratory, the BMET Library supports EWH's expanding BMET Training Program in Rwanda, Honduras, Ghana, Cambodia, and Nigeria.


Our mission is to make valuable resources accessible to the global BMET community free of charge, while fostering the exchange of information between professionals, including educators, practitioners, patients, engineers, and students at all levels. Our vision includes a commitment to work toward the EWH mission of building a local, sustainable, trained workforce of BMETs in developing countries to repair and maintain medical equipment.


How to Use the BMET Library

Getting Started

New to the BMET Library? Check out our Quick Start Guide which will teach you how to use the library.

How to Download and Read Documents Online

  • View the document Opens a HTML version of the chapter in the same tab. This option will be the fastest if bandwidth is an issue. Does not include pictures, diagrams, and rich text elements.
  • View the PDF document Opens a PDF version in your browser that preserves all pictures and diagrams. To save a document for offline use, open as a PDF and then save the document.

Using the Library

  • Search:

    Searching is the easiest way to use the BMET Library! To search the BMET Library enter a term or keyword into the Search bar.Our Search works just like Google. A new page will appear with a list of your results!

  • Topics:

    The Topics tab can be used to browse list of topics included in this library. Topics are arranged hierarchically so you can refine your search as you go. Topics include: Anatomy and Physiology, Biomedical Technician Assistant (BTA) skills, Electronics, Healthcare Technology Management (HTM), Mathematics, Spanish Language, Medical Equipment, and more.

  • Troubleshooting and Repair:

    This section provides information about how to quickly troubleshoot, maintain, and repair medical devices. Troubleshooting and Repair has 4 sections: Preventative Maintenance, Repair and Troubleshooting Flowcharts, Equipment PowerPoints, and Equipment Packets. Equipment Packets are full guides to select medical devices crated to provide quick reference!

  • Medical Equipment:

    The Medical Equipment is organized alphabetically. Click on the name of a medical device to see all the materials in the library related to that device!

  • Articles:

    This section houses articles about a wide range of information needed as a BMET. Articles an be excerpts from books, informational pamphlets, or medical articles. All articles can be downloaded as PDFs or read as text-only online. Click on a subject or book title to see what articles are available.

  • Complete Books:

    This section houses full textbooks. These textbooks are FREE ad can be downloaded to your computer. Check the "Terms of Use" before sharing these books. Examples of Complete Books are BMET Geometry, Lessons in Electrical Circuits, Maintenance and Repair of Laboratory, Diagnostic Imaging and Hospital Equipment, and Cómo Organizar un Sistema de Administración de Tecnología para el Cuidado de la Salud.

Copyright and Terms of Use

For information regarding copyright and use of documents in the digital library see our Copyright and Use Guide.

Translating the Library

This website is currently only available in English, if you need to access the website or its resources in another language Google Translate (https://translate.google.com/) is very useful. Google Translate will allow you to type in text to translate, upload a document to be translated, or enter a web address and translate the entire site. Just like with most online translation services Google Translate is not perfect and also works better with small pieces of text. If a translation does not make sense translating a smaller phrase may help resolve the issue.

For the purposes of using this site, Google Translate is able to translate the page and allow you to navigate the translated page. However one must be careful when using Google Translate with PDF files, it can only handle files up to 1 MB, larger files must be split (http://www.splitpdf.com/). Additionally even if a PDF document is not over 1 MB translating it may scramble the content or remove the images.

Google Translate can translate HTML files too, and often it does not scramble the content like it does with PDFs, however HTML files do have some drawbacks. These types of files do not have the images or text formatting that the PDF files of the same resource may have.

The search function of the website currently only supports searches in English. If you need to search in a different language then go to Google Translate, select your language on the left and English on the right, then enter your desired search phrase and click translate. After translating the phrase copy it and then paste it back into the search bar, select your search preferences, and click “Begin Search”. It is especially important when searching by this method to use very short and simple phrases, the shorter the phrase the more likely it is translated correctly and will lead to the correct information.

Translation Step-by-Step Walkthrough:

  1. If you are using Google Chrome it can be configured to automatically offer to translate pages that are in different languages. This is done by going to advanced settings and checking the box labeled “Offer to translate pages that aren’t in a language you read”.

  2. If the previous step does not work or you are using a browser other than Google Chrome go to https://translate.google.com/ to open Google Translate

  3. Select English on the left and the desired language on the right

  4. In order to translate a file download it from the site and then return to https://translate.google.com/, click “translate a document” just below the textbox, then click choose file and select the document you have just downloaded. Alternatively if you are using the translated version of the site on Google Chrome when you click the link to download a resource it will automatically ask you if you want to have the file translated before you open it. It is important to remember that Google Translate will only accept files less than 1 MB and the translation may affect the readability of a PDF file.

This digital library is powered using Greenstone, an open source software for creating digital libraries. More information about how to use this library and execute searches with the MGPP search engine can be found on the "Help" page via the link above.


Contents of the Library

This digital library contains open source information from six major areas, Anatomy and Physiology, Biomedical Technician’s Assistant (BTA) Skills, Electronics, Healthcare Technology Management (HTM), Mathematics, and Medical Equipment.

The Anatomy and Physiology section can be used to learn more about the parts, systems, and functions of the human body and is broken down into chapters by the various organ systems in the human body.

The BTA Skills are a series of short articles developed by Robert Malkin’s Developing World Healthcare Technology (DHT) Laboratory at Duke University. Overall there are 113 of these skills and they cover five basic areas, Electrical Skills, Mechanical Skills, Motors Skills, Plumbing Skills, and Power Supply Skills.

The documents relating to Electronics cover the basics of electrical current and circuitry and the care and safe use of electrical equipment. This section contains a full textbook on electric circuits and articles that go over how to properly maintain and safely use electrical equipment; including batteries, electrodes, motors, power supplies, plugs, and sockets.

The Healthcare Technologies Management (HTM) section covers how to effectively manage a healthcare facility (hospital, clinic, or laboratory). It has a series of documents that give an overview of how to acquire, organize, operate, and maintain medical equipment. There are additional documents that cover finances and some basic hospital procedures such as sterilization.

The Mathematics section contains four documents covering algebra, trigonometry, geometry, and statistics and probability.

The Medical Equipment section has resources that provide information on specific pieces of medical equipment and for each piece of equipment that is included there is information on how the equipment is used, the principles behind its operation, how to maintain the equipment in safe working condition, and how to fix some common problems with the equipment.

Supporting the BMET Library

Donate Button The BMET Library accepts donations using a PayPal system, but you do NOT need a PayPal Account to donate. All you need to support the BMET Library is a credit card or check and an interest in helping technicians in the developing world!

Donating with a Credit Card

  1. 1. Click on the following link to make a donation on the Engineering World Health website.
  2. 2. Fill out the form and choose the amount of your donation.
  3. 3. In the "Comments" box write the keyword "Library" so we know to invest your donation in the BMET Library.

The BMET library provides free resources to BMETs and medical professionals all around the globe.

Donating with a Check

Prefer to donate with a check? If you prefer to donate by check, simply mail your contribution to our Chapel Hill NC office.

Engineering World Health
151 E. Rosemary St, Suite 201
Chapel Hill NC 27514

Thank you for your support!