Not any device is be safe for life or health. In certain situations our job demands from us sacrificing health and working in conditions hostile it is quite not permissible. Quite differently question has to do with things like therapeutic equipment. They are, because devices what it is thanks to own impressive fit, have a direct impact on our health and sometimes and life, therefore medical equipment is subject to special conditions relating to its effective functioning.
Unacceptable it is that electronic medical equipment be able to burn or also to cause injuries of internal organs in patients or possibly personnel handling it - see medical spare parts suppliers. Such accidents occur occasionally and are caused construction errors, or also wrong insulation, use of wrong materials, or also random random damage. Appropriate standards and templates what should be met in this case by electronic equipment medical nobody amaze it is because a natural protection against accidents what can affect the life or possibly human health.