Ventilators are medical devices used to provide respiratory support. These devices provide mechanical ventilation to patients experiencing respiratory distress or respiratory failure. By controlling respiratory rate, volume, and pressure, ventilators deliver oxygen to the patient's lungs and facilitate carbon dioxide removal. These devices are widely used in areas such as intensive care units, emergency rooms, anesthesia rooms, and respiratory rehabilitation.
Ventilator specifications typically include respiratory modes, adjustable respiratory parameters, oxygen supplementation, alarm systems, and integration capabilities. These modes determine how the device operates to support the patient's breathing. Different modes, including pressure-controlled ventilation, volume-controlled ventilation, and pressure-support ventilation, are available. Respiratory parameters include respiratory rate, tidal volume, positive expiratory pressure (PEEP), and oxygen concentration.
Ventilators operate on the principle of initiating a respiratory cycle upon receiving a trigger signal from the patient. This trigger signal is detected by a sensor that detects the patient's respiratory movements or by a tube that monitors the patient's breathing movements. The device adjusts the respiratory rate, tidal volume, and pressure according to a specific breathing mode. These settings are optimized for the patient's needs and ensure regular breathing.
Some medical-technical terms related to ventilators include: "FiO2" (Fraction of Inspired Oxygen) refers to the percentage of oxygen in the inspired air delivered to the patient. "PEEP" (Positive End-Expiratory Pressure) is a constant pressure applied at the end of the respiratory cycle, preventing the lungs from collapsing. "Trigger sensitivity" refers to how sensitively the ventilator detects the patient's respiratory movements.
