Mindray MPM Module SpO2 Board 050-000046-00 051-000058
► Brief Introduction
The monitor uses the oscillometric method to measure non-invasive blood pressure (NIBP). NIBP measurement is based on the principle that pulsating blood flow in an artery causes oscillations in the arterial wall. Oscillometric devices use a blood pressure cuff to sense these oscillations, which appear as tiny pulsations in the cuff pressure. Oscillometric methods measure mean pressure and determine systolic and diastolic pressures. Oscillometric devices measure the amplitude of the pressure change in the occlusive cuff as the cuff is deflated from above the systolic pressure. When the pulse breaks through the arterial occlusion, the amplitude suddenly increases. As the cuff pressure is further reduced, the pulsation amplitude increases, reaches a maximum value (close to the mean pressure), and then decreases.
► Measurement Modes
There are three NIBP measurement modes:
- Manual: measurement on demand.
- Auto: repeated measurements at set interval.
- STAT: continually rapid series of measurements over a five minute period.
- Sequence: continually automatic measurement at set durations and intervals.
► Warning
• Be sure to select the correct patient category setting for your patient before NIBP measurement. Do not apply the higher adult settings for pediatric or neonatal patients. Otherwise, it may present a safety hazard.
• Do not measure NIBP on patients with sickle-cell disease or on the limb where skin damage has occurred or is expected.
• Use clinical judgment to determine whether to perform frequent unattended blood pressure measurements on patients with severe blood clotting disorders because of the risk of hematoma in the limb fitted with the cuff.
• Do not use the NIBP cuff on a limb with an intravenous infusion or arterial catheter in place. This could cause tissue damage around the catheter when the infusion is slowed or blocked during cuff inflation.
• Do not apply cuff on the arm on the side of a mastectomy.
• Continuous cuff pressure due to connection tubing kinking may cause blood flow interference, and resulting in harmful injury to the patient.
• NIBP reading can be affected by the measurement site, the position of the patient, exercise, or the patient's physiologic condition. If you doubt the NIBP measurements, determine the patient’s vital signs by alternative means, and then verify that the monitor is working correctly.
• Devices that exert pressure on tissue have been associated with purpura, ischemia, and neuropathy. Inspect the application site regularly to ensure skin quality and inspect the extremity of the cuffed limb for normal color, warmth and sensitivity. If the skin quality changes, or if the extremity circulation is being affected, move the cuff to another site or stop the blood pressure measurements immediately. Check more frequently when making automatic or STAT measurements. Auto NIBP measurements with one and two minute intervals are not recommended for extended periods of time.
• NIBP diagnostic significance must be decided by the physician.
► Specification
| Item | Default Setting |
TXX
(XX refers to temperature site) | Alarm switch | On |
| High limit | 38.0 °C |
| Low limit | 35.0 °C |
| Priority | Med |
| Alarm Outputs | Off |
| ΔT | Alarm switch | On |
| High limit | 2.0 °C |
| Priority | Med |
| Alarm Outputs | Off |
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