![]() ![]() For example, positioning the tracheal tube by auscultation, fully exposing the pathological changes of the lung surface during the operation, and checking the air leakage of the tracheal stump. After intubation, a connector connecting the DLT to the breathing circuit of the anesthesia ventilator was used to realize the conversion between two-lung and one-lung ventilation when necessary. ConclusionĬompared with YC, YRC was beneficial for maintaining depth of anesthesia, improves efficiency for the switch between one-lung and two-lung ventilation, and shortens the tube positioning time.ĭuring thoracic surgery, it is necessary to insert a double-lumen tube (DLT) to achieve lung isolation and one-lung ventilation. There was no difference in airway pressure and the sputum suction time in two groups. The Et and Fi of the YRC group and the YC group were significantly different (all p < 0.05) at 5s, 10s, and 30s after the patient switched from two-lung ventilation to one-lung ventilation. The secondary endpoints were the internal gas volume of the two connectors, airway pressure, and the sputum suction time. The primary endpoints included the inhaled air concentration (Fi) and the exhaled air concentration (Et) of sevoflurane before and after the switch between two-lung ventilation and one-lung ventilation at different times, positioning time, and switching time. Sixty patients with ASA grade I-III, aged ≥ 18 years, who needed to insert a DLT for thoracic surgery were recruited and assigned into the YRC group ( n = 30) and the YC group ( n = 30) randomly. A Y-shaped rotatable connector (YRC) for double-lumen tubes (DLT) is invented and compared with the traditional connector (Y-shaped connector, YC).
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