Ecoray HF-525Plus - Safety from Explosion or Electric Shock; Risk of Collision; Radiation Safety

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Technical Publication Document NO: SYSTEM-007-ENG (Ver.1.1)
HF-525Plus Installation, Operation and Service Manual
WARNING▶
Never use the system if you suspect any electrical or radiation-generating components to be defective
or if the system exhibits unexpected malfunctions!
WARNING▶
Always be sure that audible and visual communication between the operator and patient are
established throughout the entire examination. If necessary, communication must be maintained
through technical means, for instance, an intercom.
3.2 Safety from Explosion or Electric Shock
WARNING▶
Do not use the system in an atmosphere containing combustible gas. The system is not an AP device.
Its use in an atmosphere containing combustible gas carries the risk of fire or explosion.
WARNING▶
Do not use disinfectant sprays that are flammable or could cause an explosion. The vapor from a
disinfectant spray may ignite, causing life-threatening or serious injuries and damage to the system.
WARNING▶
Connect the power cord plug to a 3-pin grounded socket.
3.3 Risk of collision
WARNING▶
Ensure that there are no persons and objects in the range of the tube assembly movement.
WARNING▶
Ensure that the patient does not use the control grip as a handle.
3.4 Radiation Safety
The system produces X-rays. If you do not observe the safety measures and precautions required by
your local radiation protection regulatory body, these X-rays can be hazardous both to operating staff
and other persons.
Maximum Permissible Dose (MPD)
Many kinds of researches on effects or influences about X-radiation provide basics about maximum
permissible dose. These research results were used for ICRP to recommend Maximum Permissible
Dose but it is hard to define exactly and it is updated from time to time with new research result. For
occupational exposures, the ICRP 60 recommends that the MPD accumulated shall not exceed the
following limits:
 Annual effective dose 50 mSv
 Annual dose for the lens of the eye 150 mSv
 Annual dose for all other parts of body 500 mSv
WARNING▶
The system is intended for procedures where the skin dose may be so high that there is a risk of
deterministic effects, even if the system is used as intended.
WARNING▶
The system may only be operated by personnel who has undergone radiological training.