The rectum should be packed with sterile saline whenever anal surgery is performed. Always have a fire extinguisher nearby. The laser unit emits purge gas under pressure when lasing. To reduce the risk of gas embolism do not bring the tip into contact with any vascular tissue. The interior of the laser unit contains exposed high voltages and invisible laser light.
Internal maintenance is to be performed only by trained technicians.
Only personnel trained in laser safety are present. Safety goggles in use. 0.1 micron masks used Patient eye protection in place. This laser is produced by ESC Medical Systems. They are located in Bothell, WA 98021.