Edwards EVHRS Manual Del Usuario página 3

CAUTION: Improper zeroing of the heart reference sensor may adversely affect the accuracy of the readings.
CAUTION: Make sure that the heart reference sensor is correctly applied so that it can be leveled to the phlebostatic axis.
Cleaning Instructions
The heart reference sensor can be cleaned using the following disinfectants:
• 70% isopropyl alcohol solution
• 10% sodium hypochlorite water solution
1. Moisten a clean cloth with disinfectant and wipe the surfaces.
2. Dry the surface with a clean, dry cloth.
WARNING: Do not disinfect the heart reference sensor by autoclave or gas sterilization.
CAUTION: Do not immerse the heart reference sensor.
CAUTION: Do not immerse any cable connectors in fluid.
CAUTION: Conduct periodic inspections of all cables for defects. Do not coil cables tightly when storing.
CAUTION: Clean and store the heart reference sensor after each use.
Preventive Maintenance
The finger component of the heart reference sensor may be damaged if subjected to moderate to significant surface impact.
Although the likelihood of damage is small, the resulting displayed values would be biased by the difference in height from the
heart to the finger cuff. Even though this damage cannot be seen by looking at the heart reference sensor, it is possible to confirm
whether the damage has occurred by following the below procedure prior to each use:
1. Connect the heart reference sensor to the port on compatible Edwards noninvasive monitoring system and go to the
zeroing screen.
2. As instructed in the Instructions for Use section, bring the two ends of the heart reference sensor level with each other.
3. Observe the value shown on the zeroing screen below the zeroing button.
4. Raise one end of the heart reference sensor 6 inches (15 cm) above the other end.
5. Observe that the value shown has changed by at least 5 mmHg.
6. Reverse the ends such that the other end is now 6 inches (15 cm) above the first end.
7. Observe the value shown changed in the opposite direction by at least 5 mmHg from the original value.
If the value does not change as described, then the heart reference sensor may have been damaged. Contact your local Technical
Support office as indicated in the Technical Assistance section. A replacement unit shall be provided. If the value does change, the
heart reference sensor is functioning normally and can be used for hemodynamic monitoring.
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