'devices for automatically regulating pressure in a laryngeal mask airway device (LMA) to automatically monitor a patient's anesthetized or paralyzed condition, and processes for using a LMA device to monitor a patient's anesthetized condition, to maintain a preset setpoint pressure on an airway device and larynx mask (lma) and to use the device. '

摘要

"APPLIANCE AND PROCESS TO AUTOMATICALLY MONITOR A PATIENT'S UNCONSCIOUS LEVEL IN THE COURSE OF A PATIENT SURGICAL PROCEDURE" A reversibly operated engine is mechanically connected to automatically position the piston (27) of an air syringe (26) which is pneumatically connected to the inflatable / deflatable sealing ring or wrist (19) of a laryngeal mask airway device (AML) (12) that is installed on a patient, who is being ventilated and / or anesthetized through the patient's airway LMA device (12). Ideally, (i) the air at the head end of the syringe (26), plus (ii) the air contained in the inflatable cuff (19) of the LMA (12), plus (iii) the air contained in its interconnection, is a volume "substantially constant" which is shared in these three locations but which is automatically changed by displacement of the piston (27), so that the air pressure in the substantially constant volume corrects as necessary the conformity to a predetermined level of pressure of the setpoint. Several instruments (10), including microprocessor-controlled instruments, continuously monitor system patterns that respond to the observed abnormality pattern, with warnings reported audibly and visually to the anesthetist.