Maintenance

The LSO is responsible for ensuring that maintenance of Class 3B and Class 4 laser systems is only performed by technicians who are trained in laser service. Alignment of laser optical systems, including mirrors and lenses, should be performed in a way that prevents direct or diffuse beam exposure above the MPE. Written policies and procedures detailing alignment methods should be provided by the manufacturer and approved by the LSO. Note that the use of low power, visible lasers for path simulation of higher power lasers is recommended for both invisible and high power, visible laser systems.

When maintenance is being performed that requires the removal of protective housings or the overriding of protective interlocks and the accessible laser radiation exceeds the MPE, a temporary laser controlled area should be created. A notice sign must be posted outside the temporary laser controlled area to warn others of the hazard.

Surgical lasers should not be activated if the aiming system is faulty. Beam accuracy should be tested prior to use by firing the beam through the intended applicator. The beam shape and quality should be examined by the user or a designated assistant.

To learn more about LSO visit our Medical Laser Safety Officer Online Training web page.