Articles: ventilators.
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Anaesth Intensive Care · Nov 1981
Letter Case ReportsVentilator malfunction detected by O2 analyser.
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Critical care medicine · Jul 1981
Comparative StudyPerformance of neonatal ventilators: the effects of changes in resistance and compliance.
The authors tested the ability of 6 neonatal ventilators (Baby bird, Bourns BP-200, Veriflo, Bourns LS, ServoVent, SI-75) to deliver a preset tidal volume with minimal pressures when the compliance and resistance of test lung were altered. The authors also studied the effects of gas leaks from the system and the effects of PEEP. ⋯ Under these same conditions (normal compliance, elevated resistance), only 24-46% of the preset tidal volume was delivered. The different ventilators caused the pressure within the test lung to exceed 5, 10, and 15 cm H2O for differing amounts of time (sec)/min.
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Anasth Intensivther Notfallmed · Feb 1981
Clinical Trial Controlled Clinical Trial[Mechanics of breathing during anaesthesia with controlled ventilation by means of the engström ecs 2000 respirator (author's transl)].
Compliance, resistance, gas flow, blood gas tension and intrapulmonary shunt volume were measured in 20 anaesthetized patients ventilated by the volume-controlled Engström respirator ECS 2000. All patients had neurosurgical or vascular procedures. ⋯ Ventilation with the large tidal volume was characterized by better compliance and oxygenation indicating that the mechanics of breathing and the intrapulmonary gas exchange benefit from larger tidal volumes. Due to the special features of the Engström respirator as regards air flow and pressure steady ventilation with a low tidal volume of 6 ml/kg bodyweight does not result in a significant decrease in compliance and an increase in shunt volume as is the case with other types of respirators.