| 摘要 |
<p>ENDOTRACHEAL CARDIAC MONITOR A flexible endotracheal tube includes at its distal end an inflatable cuff adapted to monitor acoustically the cardiac pulse. The inflatable cuff, when inflated after insertion of the endotracheal tube into the trachea of the patient, contacts and conforms to the inner wall of the trachea to provide an airtight seal, thereby permitting the administration of anesthetic gases, as well as control and monitoring of the respiratory function through the respiratory passage within the endotracheal tube. The cardiac pulse is acoustically transmitted from the interior tracheal wall through the inflatable cuff and into the associated inflation conduits, one of which terminates in a monitor connector suitable for monitoring the cardiac pulse. A transducer connector housing an electromechanical transducer mates with the monitor connector and produces an electrical signal which is suitably processed and subsequently used to drive a visual display, a chart recorder, and to provide an audio output.</p> |
