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Esophageal-tracheal double lumen airway

  • US 5,499,625 A
  • Filed: 01/27/1994
  • Issued: 03/19/1996
  • Est. Priority Date: 01/27/1994
  • Status: Expired due to Term
First Claim
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1. An airway for both sole esophageal obturator ventilation and for combined endotracheal and esophageal obturator ventilation of a patient, selectively, comprising:

  • a tube having an exterior surface, a proximal end and a distal end, said distal end being insertable into an esophagus or into a trachea randomly, said tube comprising two lumens extending axially and each having a proximal end and a distal end, both of said lumens being open at the proximal end, the distal end of one of said lumens being open and the distal end of the other of said lumens being closed, said tube further comprising at least one air outlet communicating with said lumen having said closed distal end wherein said at least one air outlet is locatable in a patient'"'"'s pharyngeal area;

    an inflatable distal cuff on said tube located adjacent the distal end of said tube;

    an inflation conduit connected to said inflatable distal cuff for allowing selective inflation of said inflatable distal cuff;

    an inflatable pharyngeal cuff on said tube located between said at least one air outlet and said proximal end of said tube, said pharyngeal cuff being sized and located with respect to said tube such that when inflated, said pharyngeal cuff is situated within the boundaries of the oropharynx of a patient;

    an inflation conduit connected to said inflatable pharyngeal cuff for allowing selective inflation of said pharyngeal cuff;

    an X-ray opaque stripe extending along the tube, said stripe being present at least between the inflatable pharyngeal cuff and the inflatable distal cuff and being interrupted by at least one air outlet; and

    an X-ray opaque shaft separate from the X-ray opaque stripe, said X-ray opaque shaft being attached to the exterior surface of the tube between the inflatable pharyngeal cuff and the inflatable distal cuff and being constructed to maintain said at least one air outlet interrupting said X-ray opaque stripe free from blockage when the airway is positioned in the patient.

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