Method and apparatus for endotracheal intubation using a light wand and curved guide

• US 6,860,264 B2
• Filed: 04/02/2002
• Issued: 03/01/2005
• 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): Bennett, Henry
• Assistant Examiner(s): Flynn, Amanda R.
• Application Number:
  US10/115,224
• Publication Number:
  US 20020108610A1
• Time in Patent Office: 1,064 Days
• Field of Search: 128/200.21, 12820714-20718, 600/120, 600/194, 600/199
• 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 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/0409 with mean for closing the oesophagus
• CPC Class Codes: A61M 16/0427 with removable and re-insertable liner tubes, e.g. for cleaning
• CPC Class Codes: A61M 16/0434 Cuffs
• CPC Class Codes: A61M 16/0484 at the distal end
• CPC Class Codes: A61M 16/0486 Multi-lumen tracheal tubes
• 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 16/0493 with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
• CPC Class Codes: A61M 16/0495 with tongue depressors
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/0605 Means for improving the adaptation of the mask to the patient
• CPC Class Codes: A61M 16/08 Bellows; Connecting tubes having means for taking samples G01N1/22; Water traps; Patient circuits
• CPC Class Codes: A61M 16/085 Gas sampling
• CPC Class Codes: A61M 16/1015 using a gas flush valve, e.g. oxygen flush valve
• CPC Class Codes: A61M 2016/0413 with detectors of CO2 in exhaled gases
• CPC Class Codes: A61M 2205/0222 Materials for reducing friction
• CPC Class Codes: A61M 2205/0238 the material being a coating or protective layer
• CPC Class Codes: A61M 2230/432 partial CO2 pressure (P-CO2)

Abstract

A method and apparatus for endotracheal intubation with simultaneous oxygenation/ventilation employs a curved guide and a light wand to ensure proper placement of the endotracheal tube in the patient'"'"'s airway. The light wand has an elongated flexible member with a light source at its distal tip. The wand is inserted through an endotracheal tube until the light is adjacent to the distal end of the endotracheal tube. A curved guide is inserted into the patient'"'"'s mouth and upper airway so that its distal end is positioned above the larynx. The wand and endotracheal tube are then advanced along the guide until the distal end of the endotracheal tube passes through the larynx and the light source is externally observable at a predetermined location through the anterior tracheal wall.

Claims

1. A method for intubating a patient with an endotracheal tube comprising:

inserting a curved tubular guide into a patient'"'"'s mouth and upper airway, so that the distal end of the guide is positioned above the patient'"'"'s larynx;

providing a light wand having a flexible elongated member with a light source at its distal tip;

inserting the wand through an endotracheal tube, so that the light source at the distal tip of the wand is adjacent to the distal end of the endotracheal tube;

advancing the wand and endotracheal tube along the guide until the distal end of the endotracheal tube passes through the patient'"'"'s larynx and the light source is eternally observable at a predetermined location through the patient'"'"'s tracheal wall;

retracting the guide over the proximal end of the endotracheal tube while leaving the wand and endotracheal tube in place in the patient'"'"'s airway; and

withdrawing the wand from within the endotracheal tube while leaving the endotracheal tube in place in the patient'"'"'s airway.

2. The method of claim 1 further comprising the step of removably attaching the proximal end of the endotracheal tube at a desired position on the wand, prior to the step of advancing the wand and endotracheal tube along the guide.

3. The method of claim 1 wherein the wand further comprises a removable handle, and further comprising the step of removing the handle of the wand after the step of advancing endotracheal tube and wand, so that the guide can be removed over the proximal end of the wand.

4. The method of claim 1 further comprising supplying air/oxygen to the patient through the guide during intubation.

5. An apparatus for intubating a patient with an endotracheal tube, said apparatus comprising:

a light wand having an elongated flexible member with a distal tip and a light source at the distal tip of the flexible member, said flexible member having dimensions to fit through an endotracheal tube with the light source of the wand adjacent to the distal end of the endotracheal tube; and

a curved tubular guide for insertion into a patient'"'"'s mouth and upper airway, having a distal end positioned above the patient'"'"'s larynx;

wherein the wand and endotracheal tube can be advanced along the guide so that the distal end of the endotracheal tube passes through the patient'"'"'s larynx and the light source is externally observable at a predetermined location through the patient'"'"'s tracheal wall.

6. The apparatus of claim 5 wherein the wand has sufficient length to allow the guide to be retracted over the wand while leaving the endotracheal tube in place in the patient'"'"'s airway.

7. The apparatus of claim 5 wherein the light wand further comprises a removable handle at the proximal end of the flexible member allowing the guide to be removed over the flexible member of the light wand.

8. The apparatus of claim 5 further comprising an adapter for removably attaching the proximal end of an endotracheal tube to a desired position on the flexible member of the wand.

9. The apparatus of claim 8 further comprising a cap insertable into the proximal end of an endotracheal tube to engage the adapter.

10. The apparatus of claim 9 wherein the cap further comprises a plurality of splines to grip the flexible member of the wand.

11. The apparatus of claim 8 wherein the light wand further comprises a timer providing an indicia triggered a predetermined time period following activation of the light source.

12. An apparatus for intubating a patient with an endotracheal tube, said apparatus comprising:

a light wand having an elongated flexible member with a distal tip and a light source at the distal tip of the flexible member, said flexible member having dimensions to fit into an endotracheal tube;

a curved tubular guide for insertion into a patient'"'"'s mouth and upper airway, having a distal end positioned above the patient'"'"'s larynx; and

an adapter for adjustably attaching the proximal end of an endotracheal tube at a location on the flexible member of the wand so that the light source of the wand is adjacent to the distal end of the endotracheal tube;

wherein the wand and endotracheal tube can be advanced along the guide so that the distal end of the endotracheal tube passes through the patient'"'"'s larynx and the light source is externally observable at a predetermined location through the patient'"'"'s tracheal wall; and

wherein the adapter has dimensions allowing the guide to be retracted over the adapter, endotracheal tube, and the flexible member of the wand.

13. The apparatus of claim 12 wherein the flexible member of the wand has sufficient length to allow the guide to be retracted over the wand while leaving the endotracheal tube in place in the patient'"'"'s airway.

14. The apparatus of claim 12 wherein the wand further comprises a removable handle at the proximal end of the flexible member allowing the guide to be removed over the flexible member of the light wand.

15. The apparatus of claim 12 further comprising a cap insertable into the proximal end of an endotracheal tube to engage the adapter.

16. The apparatus of claim 15 wherein the cap further comprises a plurality of splines to grip the flexible member of the wand.

17. The apparatus of claim 12 wherein the light wand further comprises a timer providing an indicia triggered a predetermined time period following activation of the light source.