format [@7844043], but, when connected in a network or to other devices the real timing measurements can be get after executing the system.

### Electromagnetic compatibility. {#sec:Electromagnetic}

In some clinical cases, more than one medical device can be integrated into the same OR (Operating Room), also, many medical devices can be used for different patients into a small clinical spot. Electromagnetic fields (EMF) may cause problems on electronic devices [@doi:10.1080/10803548.2009.11076785] and generate safety hazards in the medical devices, the level of those hazards increases when the affected MD has an important role in the treatment process, such as: implantable infusion pumps and cardiac peacemakers. An example of a hazard generated by radio-frequencies is an overdose of insulin from infusion pumps exposed to EMF from mobile phones or RFID (radio frequency identification devices, usually emitting RF EMF of 0.8–2.4 GHz) [@karpowicz2013assessment].

The radio-frequencies generated by a medical device or another source (infrared, microwave or ultrasound therapy) can affect the patient body and the body of others-the physiotherapist or bystanders, if they find themselves within the EMF [@Gryz2014EnvironmentalIO], thus, medical devices must be designed to operate in specified intervals of radio frequencies where their behavior will not be affected by the differences 