Surgery – Respiratory method or device – Respiratory gas supply means enters mouth or tracheotomy...
Patent
1996-06-21
1998-07-28
Lewis, Aaron J.
Surgery
Respiratory method or device
Respiratory gas supply means enters mouth or tracheotomy...
12820714, 12820026, A61M 1600
Patent
active
057850518
ABSTRACT:
The present invention is directed to an endotracheal apparatus for providing reliable airway management in a patient. A flexible tube extends from the patient's oral or nasal cavity to a distal end within the trachea. A first ultrasound transducer means connected to the tube near its distal end is in intimate contact with the forward inner wall of the patient's trachea at substantially its midpoint. A second ultrasound transducer means is disposed in intimate contact with the forward outer skin surface of the patient's neck. Either the first or the second transducer means can be a transmitter of an ultrasound signal provided by ultrasound transducer excitation means, to which it is electrically connected. The other transducer means serves as a receiver, which is connected to ultrasound detector means situated externally to the patient. Also in accordance with the invention, a process for monitoring the position of an endotracheal tube inserted in a patient utilizes an apparatus that comprises first transducer means disposed within the trachea of the patient and second transducer means disposed on the outer skin surface of the patient's neck.
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Lipscher Randolph B.
Mottley Jack G.
Lewis Aaron J.
University of Rochester
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