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Biomedical engineering

(biomedicalengineering)





Biomedical engineering is a discipline concerned with the development and manufacture of prostheses, medicaldevices, diagnostic devices, drugs and other therapies. It is more concerned with biological, safety and regulatory issues thanother forms of engineering . It may be defined as "The application ofengineering principles and techniques to the medical field".

Most biomedical devices are either inherently safe, or have added devices and systems so that they can sense their failure andshut down into an unusable, thus very safe state. A typical, basic requirement is that no single failure should cause the therapyto become unsafe at any point during its life-cycle. See safetyengineering for a discussion of the procedures used to design safe systems.

Many biomedical devices need to be sterilized . This creates a uniqueset of problems, since most sterilization techniques can cause damage to machinery and materials.

Most biomedical devices are completely tested. That is, every line of software is executed, or every possible setting is exercised and verified . Mostdevices are intentionally simplified in some way to make the testing process less expensive, yet accurate.

Regulatory issues are never far from the mind of a biomedical engineer. To satisfy regulatory issues, most biomedical systemsmust have documentation to show that they were managed, designed, built, tested, delivered and used using a planned, approvedprocess. This is thought to increase the quality and safety of the therapy by reducing the likelihood that needed steps can beaccidentally omitted.

Biomedical engineers operate under two basically different regulatory frameworks. These frameworks directly affect the healthof citizens by affecting the development of biomedical devices. See US FDA 510(k) documentation process forthe US government registry of biomedical devices.

In the US , the Food and Drug Administration adopts an adversarial position. It actively regulates individualdevices and drugs, and assumes that new therapies are both unsafe and don't work until proven otherwise. This process is notknown to prevent unsafe therapies. It is well-known to create a bottleneck in the development process, and the health effects ofthis bottleneck have been quantified by comparing approval times in the U.S. to approval times in Europe .

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Major fields of technology

Biotechnology | Computing technology | Electrical engineering | Electronics | Microtechnology | Nanotechnology | Biomedical engineering | Energy storage | Machinery | Space technology | Nucleartechnology | Visual technology | Weapons technology | Telecommunication | Transport



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This article is completely or partly from Wikipedia - The Free Online Encyclopedia. Original Article. The text on this site is made available under the terms of the GNU Free Documentation Licence. We take no responsibility for the content, accuracy and use of this article.

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