Precautions for use and operation of non-invasive ventilator


Non-invasive ventilator mainly refers to the device for ventilator treatment through nasal mask or mask. Because it is not necessary to give patients tracheal intubation or tracheotomy, it is easy to operate and easy to accept, and has fewer complications such as airway injury and ventilator-associated pneumonia. For outpatients with relatively stable conditions, home applications are also increasing.

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Use of non-invasive ventilator

1. First use: When using the ventilator for the first time, you may feel unwell. This is normal. Take a few deep breaths, and after a period of self-adjustment, the patient will gradually adapt to this new feeling.

2. Get up: If you need to get up at night, please remove the mask and turn off the ventilator. When you continue to sleep, replace the mask and turn on the ventilator.

3. Mouth leak: If you use a nasal mask, try to keep your mouth closed during treatment. Leaks in the mouth can lead to reduced efficacy. If the problem of leaking in the mouth cannot be solved, you can use an oronasal mask or a chin strap.

4. Wearing the mask: When the mask is well worn and comfortable, the ventilator has the best effect. Leakage can affect efficacy, so eliminating it is important. Before wearing the mask, wash your face to remove excess oil from the face. This helps to better wear the mask and prolongs the life of the mask pad.

5. Drying problem: During use, dryness of the nose, mouth and pharynx may occur, which is more obvious in winter. Usually, adding a humidifier can eliminate these discomforts.

6. Nasal irritation: In the first few weeks of treatment, sneezing, runny nose, and stuffy nose may occur. Usually, adding a humidifier can solve the above problems.

Non-invasive ventilator application

With the continuous development of medicine, the function of non-invasive ventilator is constantly improved, making it more suitable for patients and the treatment effect is more ideal. Non-invasive ventilator is suitable for: COPD, ARDS, type 1 respiratory failure, type 2 respiratory failure, postoperative respiratory failure and chronic bronchial emphysema. Non-invasive ventilator has many advantages:
1. Intermittent ventilation;
2. No need for intubation;
3. Different ventilation methods can be applied;
4, normal swallowing diet and humidification;
5. Easy to go offline;
6, physiological warming and humidifying gas.

Common problems and troubleshooting methods of non-invasive ventilator
First, Leak
1. Check whether the mask model is suitable for the patient’s face shape;
2. Check the tightness of the headband, whether the mask is properly fixed and whether it is shifted;
3. Check whether the pipeline is disconnected.
Second,Patient intolerance of NPPV
1. Is the mask suitable and how comfortable is it?
2. The pressure setting is too low or too high;
3. The humidifier temperature is too high and makes the patient feel dull;
4. Timely and effective psychological care to eliminate patients’ anxiety and anxiety.
Third, the man-machine is not synchronized
Patient factors:
1. Breathing too fast: slow down and practice abdominal breathing;
2. Hypoxemia correction: increase FiO2, increase IPAP or EPAP;
3. Airway resistance is too high: expectorant. Antispasmodic.
4, mental stress
Ventilator factors:
1. Excessive air leakage;
2. The parameter setting is unreasonable: CPAP, S / T;
3. The trigger sensitivity is not suitable: set a higher trigger sensitivity for those who breathe faster; set a lower trigger sensitivity for those who breathe slowly but are unable to do so.

Noninvasive ventilator care and maintenance
First, daily cleaning
1. Remove the pipe and hang it in a clean and dry place for next use. Avoid direct sunlight, otherwise the pipeline will harden and crack.
2. Clean the mask according to the instructions for use of the mask.
3. If using a constant temperature humidifier, clean it according to the instructions in the manual.
Second,cleaning weekly
1. Remove the tubing from the ventilator and mask.
2. Follow the instructions to clean the entire mask system.
3. Clean the pipeline with warm water containing neutral detergent, rinse with water and hang to dry. Do not allow to dry.
4. Before next use, please re-install the mask and headband according to the instructions.
5. Reconnect the pipeline to the pressure sensor adapter and mask.
Third, regular maintenance
1. The mask and tubing must be removed and worn every day, so please check regularly for any damage. 2. Regularly wipe the outside of the body with a damp cloth and neutral detergent.
3. Check once a month whether the filter is blocked by dirt or leaks. If the filter is dirty, it should be replaced in time to prevent insufficient air from the ventilator. Under normal use, the filter membrane needs to be replaced every six months (if the machine’s working environment is dirty, it can be replaced frequently). Do not wash the membrane with water. Do not wash and reuse the membrane.
4. Replace the pressure sensing adapter once a year.

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