What can I do when logged in?

You can submit new articles, so we can make unique versions of them and distribute them for you.
If you want to simply publish the same article on 800 websites, you can tell us to do that.
You can see the archive and current status of all your article distributions.
You can order any number of high-quality articles - just let us know your keywords.
You can browse the archive of all the articles we have written for you.
You can order our Complete Service (10 high-quality articles plus 10 article distributions).
You can purchase more credits for our services and check your affiliate earnings.
Much more ...

SpinDistribute.com Article Directory

The following article was published in our article directory on February 3, 2011.
Learn more about SpinDistribute Article Distribution System.

Medical OEM Power Supplies and UL/EN60601 3rd Edition

Article Category: Computers and Technology

Author Name: Bob Viera

The recent third edition of IEC 60601-1 represents a drastic change of the IEC 60601 group of medical electrical equipment safety standards for medicalmedical approved power supplies and the equipment they power. First released in 1977, IEC 60601-1 is recognized as as the authority of medical systems safety and the forerunner standard of over 60 different device standards which and the medical power supplies that power them.

A Survey of the Changes

The evolvement toward the third edition started before the last amendment was issued in 1995. Formal work on the project began in early 1997 and has taken nearly nine years to finalize. During the progession of writing the third edition, the breadth of IEC 60601-1 was drastically updated and expanded. The first major change came when the ever-lasting disagreement within IEC Subcommittee 62A over what some considered an irrelevant impediment in the scope of the standard was resolved, and the Subcommittee removed the phrase 'under medical supervision' from the definition of medical electrical equipment. This change closed the dispute over whether or not electronics that satisfied all the other requirements of medical electronic systems, but was not intended for utilization by or under the close supervision of a trained professional, should be defined by the requirements of IEC 60601-1. The automatic external defibrillator (AED) now so common in airports and other public spaces is a typical example. While such devices clearly meet all the other specifications of medical electronic devices, it can be definitively seen that they are not designed for use under medical supervision. Under the new understanding of the third edition, there is no question that AEDs are covered by IEC 60601-1.

The next major update occurred when Subcommittee 62A adopted a proposal from France to include 'or compensation or alleviation of disease, injury or disability' to the scope of medical electrical equipment. Before, medical electrical systems was limited to systems intended by their manufacturer to 'diagnose, treat or monitor a patient'. The UK also stipulated that a stringent interpretation of the breadth of the second edition of IEC 60601-1 exclude various patient management devices. These equipment are not defined in the scope of the ISO Committee dealing with aids for the disabled, unless the systems are designed for both domains of use. Many in the community felt that taking out these devices left a large hole in the standard's coverage. Various of other standards, such as ISO 10535 for patient lifting equipment, refer to IEC 60601-1 for medical electronic systems and so for IEC 60601-1 to exclude this equipment is a contradiction.

Another disagreement that was broadly debated during the development of the third edition was the relationship of the additional standards in the IEC 60601 family. Amendment 2 to the second edition added subclause 1.5, which defined the kind of requirements that would be contained in a related standard and the relationship of the collaterals to the particular standards. However, it was unclear with respect to whether or not healthcare electronic systems must meet with any relevant collateral before it could be designated to comply with IEC 60601-1. Arguments on the question seemed fairly evenly divided. In 2003, Subcommittee 62A formally reviewed this question and decided that, for the third edition, a collateral standard becomes a normative part of the main standard on the date of its issuance. In effect, this process enables for an unlimited versions of amendments to add released general specifications to IEC 60601-1 because these published collateral standard becomes a normative part of IEC 60601-1 when adopted.

However, easily the most striking change in the third edition is the specification for the manufacturer of healthcare electrical devices to have a formal risk management system in place or risk non-compliance with the third edition of IEC 60601-1.

Read more: Medical; power Supplies and IEC 60601-1 – 3rd Edition / Third Edition http://advancedpowersolutions.com/medical-approved-power-supplies.html

Keywords: medical power supplies

Learn more about SpinDistribute Article Distribution System. We also offer Professional Article Writing to everyone who's looking for high quality web content.

SpinDistribute.com Network

Each article you submit at SpinDistribute.com is sent through our innovative Article Distribution System to our network of more than 1840 publishers - about 55% of them are high-quality article directories, 30% of them are niche blogs and 15% of them are other content-rich websites.

To achieve the best possible success we only publish your article to most related websites. This means your article will show up on approximately 640 - 880 most related websites which will give you great SEO results.

We also offer a separate Professional Article Writing Service to everyone who's looking for high quality web content and well researched unique articles.