Ventilator Circuit

Why Choose us

Well-Experienced:The company has an in-house R&D team composed of a group of professional and technical personnel with nearly two decades of cumulative experience in the industry.

Quality Management:All production and operational activities are strictly conducted in compliance with the requirements of national and international quality management systems. The company has obtained CE and ISO 13485 certifications.

OEM/ODM Service:The company is capable of providing OEM and ODM services.

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Maintenance Matters Of Ventilator Circuits

Using triggering systems and high-tech patient breathing recognition to complement these ventilators, the majority of them require tubing, known as circuits, that allow oxygen to flow through them on demand. Along with this ventilator circuit tubing come heaters and humidifiers, suction catheters, filters and therapeutic aerosol generators.

When patients are mechanically ventilated, their airways are subjected to cold, dry air. Because of this, patients often experience dryness in their noses and throats, along with inflamed airways that can cause additional medical difficulties. To prevent such issues, oxygenated air is heated and humidified by using a pass-over humidifier and heating system in the ventilator circuit tubing. When using mechanical ventilators for a patient with an acute respiratory infection (ARI), use of bacterial and viral filters is also recommended.

The circuit tubing is the key part of these medical ventilation systems requiring maintenance. Such tubing is generally made from corrugated plastic with universal connectors that attach the ventilator to an endotracheal tube, non-invasive interface, or tracheostomy tube. Problems that can develop within this circuit include:

Circuit tubes kinking
Fluid gathering in filter
Fluid pooling within the circuit
Tube obstruction

These problems occur due to patients’ biting down on the tubes, sputum entering the circuit or kinks in the plastic tubing. To prevent colonies of unwanted microorganisms from growing inside the ventilator circuit tubing, it’s important to regularly clean and disinfects it.

Contamination occurring within the tubing can be a real concern, especially for patients that require mechanical ventilation on an ongoing basis. Positive cultures of bacteria can grow, feeding off patients’ sputum and the inhaled gas. Because of this, ventilator circuit tubing requires changing every 48 hours. Respiratory therapy equipment that comes in contact with patients’ mucous membranes should also be cleaned thoroughly, with strong disinfectants applied after the initial cleaning.

To keep the ventilator sanitary and sterile, it’s important to wipe down controls and the outside of equipment with disinfectants. Use a sodium hypochlorite solution at 500 parts per million (.05%) for non-metallic surfaces, and a sodium hypochlorite solution of 1000 parts per million (.1%) to disinfect the ventilator circuit tubing, making sure to flush the entire cavity. As the lines are not exposed to patients’ secretions, it’s not necessary to clean the pressure lines when using ventilators between patients.

Normally the tubing through which patients exhale can be removed, with the expiratory end having a valve that controls escaping gas from the circuit. It may also have a water trap or device that measures airflow, or sometimes both. All this tubing should be disassembled before cleaning it with detergent. After rinsing it, the tubing should be disinfected and then sterilized.

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