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12
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ENDOSCOPIC VESSEL HARVESTING
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MAQUET Medical Systems USA
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VASOVIEW 7 | Training Manual | English | v1
Copyright MAQUET Gmbh
cO
2
inSufflaTiOn
Connect the CO
2
insufflation tubing to the clear flexible CO
2
Insufflation Port on the BTT and begin insufflation of CO
2
.
Ensure the CO
2
Insufflator is set to the proper flow and
pressure settings.
CO
2
Flow: 3 – 5 L/min
CO
2
Pressure: 10 – 12 mmHg
The goal is to delineate a tissue plane for easier dissection
and to maintain the tunnel.
If desired pressure is not obtained in the tunnel, the slip tip
syringe provided can be used to inflate the balloon on the
BTT. Inflate the balloon with the minimal amount of air
needed to create an adequate seal (0 – 25 cc’s of air). If
there is obvious leakage around the incision, use a purse-
string suture to ensure a tight seal around the BTT port.
Once the CO
2
insufflation has begun, note the initial
“webbing” effect or partial separation of tissues from the
saphenous vein. (Figure 11)
Technique Tips
If partial separation of tissue from saphenous vein is not
observed, check that the CO
2
is flowing, the pressure
setting is 10 – 12 mmHg, and the tubing is connected to the
BTT and the insufflator. Also, check the CO
2
tank to ensure
that it is in the open position, with an adequate amount of
CO
2
. (See Troubleshooting Section)
Figure 11
Summary of Contents for VASOVIEW 7
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