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GentleYAG Laser System
Candela Corporation
8501-00-1766 Revision F
CONFIDENTIAL
Page 33
Hair, gauze, masks, cannula and airway materials can be ignited by laser energy in an
oxygen-enriched atmosphere even if thoroughly soaked with saline. The following
scenario can lead to a flash fire during laser treatment:
1.
Oxygen is administered via a mask, endotracheal tube, or nasal cannula.
Leakage of oxygen generally occurs near the eye region where a tight seal
of the mask is difficult to maintain, near the nasal area when a cannula is
used, or near the mouth when an endotracheal tube is used.
2.
An oxygen-rich atmosphere is created and dissipates over the face.
Transient local concentrations of oxygen can greatly accelerate
combustion.
3.
During treatment, the laser beam strikes combustible material, which
absorbs the laser energy, and the material is heated above its combustion
point. This may occur simply by singeing the tip of a single dry hair.
4.
This momentary, and possibly unnoticeable, ignition sets off a more
significant flash fire. The fire then follows a path from the peripheral area
of the oxygen enriched atmosphere to the oxygen source.
5.
Other combustible substances are involved as a secondary effect of the
initial ignition and may be related to hair, gauze, oxygen delivery devices,
anesthesia gases, or byproducts of anesthesia in the oxygen enriched
atmosphere. A burn may then occur where this secondary effect is present.
FLASH FIRE
HAZARDS
Содержание GentleYAG
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Страница 125: ...GentleYAG Laser System Candela Corporation 8501 00 1766 Revision F CONFIDENTIAL Page 125 Labeling Symbols Section 7 ...
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Страница 145: ...GentleYAG Laser System Candela Corporation 8501 00 1766 Revision F CONFIDENTIAL Page 145 Accessory List Section 8 ...
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