Hazards - COOK Medical Rhapsody H-30 User Manual

Always check the integrity and condition of protective eyewear.
Before wearing protective eyewear, be sure that the protective glass and frame are in good
condition.
The worst-case nominal ocular hazard distance (NOHD) for the Rhapsody H-30 Holmium Laser
System emitting laser energy from a fiber is 0.5 m, and corresponding maximum permissible
exposure (MPE) for Holmium laser is 0.1 W·cm
energy emitted directly from the laser source, which raises the NOHD to 15 m.

Hazards

Optical Hazard
The Rhapsody H-30 Holmium Laser System generates laser light at a wavelength of
2,100 nm, with a maximum energy of approximately 3.5 J, delivered from the optical fiber. Greater
energies can be generated from the laser resonator, especially during service operations. At the
Rhapsody H-30 Holmium Laser System's wavelength and operational energy levels, serious and
permanent eye damage can occur when there is direct or indirect optical exposure.
The laser beam emitted by this laser system can cause vision loss. Laser energy transmitted by
this laser that enters the eye can cause a corneal burn or can be focused on the retina. Direct
absorption of laser energy by the retina can result in temporarily clouded vision, retinal lesion,
long-term scotoma, or long-term photophobia.
Danger exists from any of the following:
• Direct laser radiation
• Reflected laser radiation
• Diffused laser radiation
Electrical Hazards
• Only a qualified service technician may remove the enclosure covers. Removing the enclosures
exposes personnel to potential electrical hazards.
• Do not touch areas marked HIGH VOLTAGE. These and the surrounding components of the
laser system contain charge voltages of up to 700 VDC.
• Do not operate the laser system if the floor is flooded.
• Service technicians should not power on the laser system unless all high-voltage areas are dry
and not in danger of flooding.
• Inspect the power cord before use. Do not use a damaged power cord or a power cord with a
damaged or loose power plug.
Fire/Explosion Hazard
The Rhapsody H-30 Holmium Laser System has the ability to melt, burn, or vaporize almost any
material. A fire can also occur because of the nature of the laser radiation. Precautions should
be taken when alcohol, gasoline, drapes, or any other ignitable materials are in or around the
working area. Keep a fire extinguisher in close proximity to the laser system.
Cook Medical © 2019
². During service operations, there is access to laser
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Chapter 3
Safety, Warnings, and Caution
1-18