Surgery – Respiratory method or device – Respiratory gas supply means enters mouth or tracheotomy...
Patent
1998-12-08
2000-12-26
Dawson, Glenn K.
Surgery
Respiratory method or device
Respiratory gas supply means enters mouth or tracheotomy...
128898, 606108, A61M 1600
Patent
active
061642770
ABSTRACT:
A intubation stylet having a cylindrical guide member is disclosed wherein the guide member has a proximal end, a distal end, and an intermediate section therebetween. The distal end may include a microphone operatively coupled to a sound processing device having a speaker or earphone. The stylet may be passed through an endotracheal tube and into the mouth or nose of a breathing patient. As the distal end is passed into the mouth, the microphone detects audible sounds produced by air movement within the upper airway and generates a raw sound signal based on the audible sounds. The sound processing device generates an amplified sound output signal based on the raw signal and transmits the amplified signal through a speaker. The amplified sounds may then be used as audio cues to assist in guiding the stylet through the larynx and into the trachea. The endotracheal tube may be advanced over the stylet guide member after which the stylet may be removed. In one embodiment, the guide member includes a channel for delivering medicinal substances such as oxygen or anesthetic. The guide member may also include an angulation wire for angulating the distal end relative to the intermediate section to assist in positioning the distal end.
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