BeneVision N22/N19 Patient Monitor Operator’s Manual 20 - 5
20.7.1 Preparing the Skin
Good sensor-to-skin contact is important for good signal quality. Before applying the sensors, clean the
application site of oil and dirt and avoid placing the sensors over excessive body hair or lesions. Insufficient
cleaning of the skin can cause high skin impedance which could cause the stimulation to stop.
To properly prepare the skin, follow this procedure:
1. Select sites with intact skin, without lesion of any kind.
2. Shave hair from skin at chosen sites.
3. Gently rub skin surface at sites to remove dead skin cells.
4. Thoroughly cleanse the site with a mild soap and water solution.
5. Dry the skin completely before applying the sensors.
20.7.2 Placing the ICG Sensors
Appropriate sensor placement is important for good signal quality and accurate measurements. Attach ICG
sensors to the patient as shown below:
To attach ICG sensors to the patient, follow this procedure:
1. Place two sensors on each side of the neck: one is at the base (or root) of the neck and the other is directly
superior and in line with the earlobe.
2. Place two sensors on each side of the thorax: one is at the level with the xyphoid process and the other is
directly inferior and in line with the midaxillary line.
• Each pair of sensors should be opposite directly to each other (180°) as shown in the figure above.
• The sensors must not have a direct contact to other electrically conductive materials.
• Only use disposable ICG sensors.
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