VENTILATOR AND METHODS FOR TREATING HEAD TRAUMA AND LOW BLOOD CIRCULATION

摘要

A device 500 for lowering intrathoracic pressure in a patient, the device characterized by:a housing 502 comprising an interface 504 adapted to couple the housing to a patient's airway; a negative pressure source 506 in fluid communication with the housing and configured to extract respiratory gases from the patient's lungs and airway; means 508 to regulate the negative pressure source to create and periodically maintain a negative intrathoracic pressure until a positive pressure breath is applied; and a positive pressure port 510 in fluid communication with a positive pressure source for intermittently supplying positive pressure breaths to the person.