Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube

• US 5,964,217 A
• Filed: 11/20/1997
• Issued: 10/12/1999
• Est. Priority Date: 02/26/1996
• Status: Expired due to Fees

• Current Assignee: Evergreen Medical Incorporated
• Original Assignee: Evergreen Medical Incorporated
• Inventors: Christopher, Kent L.
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): ANDERSON, CHARLES WENDELL
• Application Number:
  US08/974,864
• Time in Patent Office: 691 Days
• Field of Search: 128/200.26, 128/205.13, 128/205.25, 128/206.26, 128/206.29, 128/207.14, 128/207.15-207.17, 128/911, 128/912, 128/DIG. 26
• US Class Current: 128/200.26
• CPC Class Codes: A61M 16/0084 self-reinflatable by elasticity, e.g. resuscitation squeeze bags
• CPC Class Codes: A61M 16/0409 with mean for closing the oesophagus
• CPC Class Codes: A61M 16/0488 Mouthpieces; Means for guiding, securing or introducing the tubes guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02
• CPC Class Codes: A61M 16/0495 with tongue depressors
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/08 Bellows; Connecting tubes having means for taking samples G01N1/22; Water traps; Patient circuits
• CPC Class Codes: A61M 2209/06 Packaging for specific medical equipment
• CPC Class Codes: Y10S 128/911 Unilimb inhalation-exhalation breathing tubes
• CPC Class Codes: Y10S 128/912 Connections and closures for tubes delivering fluids to or from the body

Abstract

An endotracheal tube can be inserted into a patient'"'"'s trachea during resuscitation by using a face mask and a curved guide. The guide is inserted through a flexible port in the face mask and has a curved distal portion that extends into the patient'"'"'s mouth and hypopharynx. The patient is initially resuscitated by supplying a flow of air/oxygen through the mask. An endotracheal tube is inserted over the distal end of a fiber optic probe. Resuscitation, oxygenation, or artificial ventilation continue without interruption while the fiber optic probe and endotracheal tube are inserted through a flexible port at the proximal end of the curve guide and then advanced along the guide into the patient'"'"'s airway. The direction of the distal tip of the fiber optic probe can be controlled by the physician. This allows the physician to carefully guide the fiber optic probe and endotracheal tube to a position past the larynx while resuscitation continues. The fiber optic probe is then removed from within the endotracheal tube and the mask is removed while leaving the endotracheal tube in place within the trachea. The cuff on the endotracheal tube is inflated and a ventilator is connected to the proximal end of the endotracheal tube to ventilate the patient. Alternatively, the patient can be manually ventilated by connecting a resuscitation bag to the proximal end of the endotracheal tube.

Claims

1. An apparatus for guiding insertion of an endotracheal tube into the trachea of a patient, said apparatus comprising:

a face mask for covering a patient'"'"'s mouth and nose;

means for supplying a flow of air/oxygen into said mask to resuscitate a patient;

a resealable face mask port; and

a guide removably extending through said face mask port having;

(a) a curved distal portion for insertion into a patient'"'"'s mouth and hypopharynx;

said guide directing insertion of an endotracheal tube into a patient'"'"'s trachea; and

(b) a guide port allowing removable insertion of the endotracheal tube along said guide;

wherein said face mask port seals about said guide during insertion of said guide, and reseals to substantially close said face mask port after removal of said guide.

2. The apparatus of claim 1 wherein said guide comprises a tube having a curved distal portion.

3. The apparatus of claim 1 wherein said means for supplying a flow of air/oxygen to said mask comprises a resuscitation bag attached to said mask.

4. The apparatus of claim 1 wherein said flow of air/oxygen is directed around the exterior of said guide.

5. The apparatus of claim 1 wherein said guide port further comprises a flexible membrane having a stretchable opening for receiving said endotracheal tube.

6. The apparatus of claim 1 wherein said face mask port comprises a flexible membrane having a stretchable opening for receiving said guide.

7. The apparatus of claim 1 wherein said guide has a substantially U-shaped cross-section.