Martin maxium & maxium Beamer Operating Instructions
V 2.0
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10.7.5
Additional Insufflation in Endosurgical Applications
When using the maxium Beamer, argon gas is inevitably blown into the surgical field. If you work in
body cavities, this may lead to an inadmissibly high internal pressure if the gas cannot escape.
Especially in laparoscopic interventions, there is a risk of collapse of the major caval vein and con-
sequential circulatory collapse once the insufflation pressure exceeds the diastolic pressure of the
blood vessel. To prevent this, observe the following:
•
Select a low gas flow rate!
Use endosurgical applicators working with low gas flow rates in the
range of 3 l/min at a maximum.
•
When using an insufflator, this device must allow pressure monitoring, including an alarm that is
triggered as soon as the permitted limit value is exceeded so the user can take adequate pres-
sure reduction measures.
•
If no insufflator is used, you should take measures for discharging the argon gas accumulating
inside the cavity if there is a danger of argon-induced pressure increase.
10.7.6
Contamination of the Surgical Field
While the pressurized argon gas cylinders, the fittings connected to them and the valve block in-
side the maxium Beamer (with gas inlet port and applicator connector) do not incorporate any parts
that facilitate the growth of germs, it should be noted that all of these parts and components are
non-sterile and cannot be sterilized either. Where this is critical for some applications, you have the
option of installing a sterile disposable filter with a pore size of 0.2
µ
m between the unit’s gas outlet
and the sterilizable applicator. Such filters can be obtained as accessories (see section 10.8,
“Accessories for Martin Argon Beamer Systems". They reliably keep back all germs larger than
viruses.
