User's Manual Part 1

1.16 8065751025
Constellation
®
Vision System
Diathermy Function
To ensure safe operation of the Diathermy function, use only Alcon cables and
accessories. Diathermy performance can be guaranteed only when using Alcon
Surgical components or Alcon-endorsed components. Cables should always be
positioned in such a way that contact with the patient is prevented.
See Figures 1-4 through 1-6 for diathermy power specifications.
WARNING!
• Do not use the diathermy function on patients with pacemakers or implanted
defibrillatory devices. If electrosurgery is used on patients with implanted
cardiac pacemakers or defibrillatory devices or pacemaker electrodes, be aware
that irreparable damage to the pacemaker or defibrillatory device and its function
may occur and lead to ventricular fibrillation. Please check with the pacemaker
or defibrillatory device manufacturers for their recommendations.
• Failure of the HF surgical equipment (diathermy circuitry) could result in an
unintended increase of output power.
Listed below are general precautions to be followed when using the Diathermy function:
• To ensure safe operation of the Diathermy function, only approved cables and
accessories must be used (See your Alcon representative).
Diathermy performance
can be guaranteed only when using Alcon components or Alcon-endorsed
components.
• To reduce the risk of accidental burns, caution should always be taken when
operating high-frequency surgical equipment.
• Interference produced by the operation of high-frequency surgical equipment may
adversely influence the operation of other electronic equipment.
• Accessories should be checked regularly; electrode cables should particularly be
checked for possible damage to the insulation.
• The lowest power level in Diathermy step should always be selected for the
intended purpose.
• Skin-to-skin contact (for example between the arms and body of the patient)
should be avoided, for example by insertion of dry gauze.
• When HF (high frequency) surgical equipment and physiological monitoring
equipment are used simultaneously on the same patient, any monitoring
electrodes should be placed as far as possible from the surgical electrodes. Needle
monitoring electrodes are not recommended.
• In all cases, monitoring systems incorporating high frequency current-limiting
devices are recommended.
• The cables to the surgical electrodes should be positioned in such a way that
contact with the patient or other leads is avoided.
• Temporarily unused active electrodes should be stored so that they are isolated
from the patient.