US5694929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
Assignee: Evergreen Medical Inc
•
Filing: 1996-02-26
•
Granted: 1997-12-09
•
Expires: 2016-02-26
Abstract
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.
Inventors
- 👤 Kent L. Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:13
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/0057; A61M16/0084; A61M16/0402; A61M16/0409; A61M16/049; A61M16/0495; A61M16/06; A61M16/08; A61M2209/00; A61M2209/06; Y; Y10; Y10S; Y10S128/00; Y10S128/911; Y10S128/912
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
95 words
An apparatus for guiding insertion of an endotracheal tube into the trachea of a patient, said comprising: a face mask for covering said patient's mouth; means for supplying a flow of air/oxygen into said mask to resuscitate said patient; a sealable face mask port; and a guide extending through said face mask port having: (a) a curved distal portion for insertion into said patient's mouth and hypopharynx; said guide directing insertion of an endotracheal tube into said patient's trachea; and (b) a sealable guide port allowing removable insertion of the endotracheal tube along said guide.
Claim 2
Independent Claim
95 words
An apparatus for guiding insertion of an endotracheal tube into the trachea of a patient, said comprising: a face mask for covering said patient's mouth; means for supplying a flow of air/oxygen into said mask to resuscitate said patient; a sealable face mask port; and a guide extending through said face mask port having: (a) a curved distal portion for insertion into said patient's mouth and hypopharynx; said guide directing insertion of an endotracheal tube into said patient's trachea; and (b) a sealable guide port allowing removable insertion of the endotracheal tube along said guide.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 wherein said port comprises a flexible membrane having a stretchable opening for receiving said endotracheal tube.
Claim 4
Dependent Claim
16 words
The apparatus of claim 1 wherein said guide comprises a tube having a curved distal portion.
Claim 5
Independent Claim
25 words
The apparatus of claim I wherein said means for supplying a flow of air/oxygen to said mask comprises a resuscitation bag attached to said mask.
Claim 6
Dependent Claim
18 words
The apparatus of claim 1 wherein said flow of air/oxygen is directed around the exterior of said guide.
Claim 7
Independent Claim
131 words
A method for guiding insertion of an endotracheal tube into a patient's trachea comprising: placing a mask over said patient's mouth, said mask having a guide extending posteriorly from said mask with a sealable port for allowing removable insertion of said endotracheal tube through said mask and a curved distal portion inserted into said patient's mouth and hypopharynx; resuscitating said patient by supplying a flow of air/oxygen through said mask; inserting a fiber optic probe through an endotracheal tube; advancing said fiber optic probe and endotracheal tube through said port and along said guide into said patient's trachea while resuscitation continues; removing said fiber optic probe through said port; removing said mask while leaving said endotracheal tube in place within said patient's trachea; and ventilating said patient through said endotracheal tube.
Claim 8
Independent Claim
131 words
A method for guiding insertion of an endotracheal tube into a patient's trachea comprising: placing a mask over said patient's mouth, said mask having a guide extending posteriorly from said mask with a sealable port for allowing removable insertion of said endotracheal tube through said mask and a curved distal portion inserted into said patient's mouth and hypopharynx; resuscitating said patient by supplying a flow of air/oxygen through said mask; inserting a fiber optic probe through an endotracheal tube; advancing said fiber optic probe and endotracheal tube through said port and along said guide into said patient's trachea while resuscitation continues; removing said fiber optic probe through said port; removing said mask while leaving said endotracheal tube in place within said patient's trachea; and ventilating said patient through said endotracheal tube.
Claim 9
Dependent Claim
19 words
The method of claim 6 wherein said fiber optic probe is inserted to a position beyond said patient's larynx.
Claim 10
Dependent Claim
25 words
The method of claim 6 wherein said port comprises a flexible membrane having a stretchable opening for receiving said fiber optic probe and endotracheal tube.
Claim 11
Dependent Claim
23 words
The method of claim 6 wherein said guide comprises a tube having said port at its proximal end and a curved distal portion.
Claim 12
Dependent Claim
13 words
The method of claim 6 wherein said guide has a substantially U-shaped cross-section.
Claim 13
Dependent Claim
24 words
The method of claim 6 wherein said face mask further comprises a sealable face mask port having a stretchable opening for receiving said guide.
Claim 14
Independent Claim
133 words
A method for guiding insertion of an endotracheal tube into a patient's trachea comprising: placing a mask over said patient's mouth, said mask having a guide extending posteriorly from said mask with a sealable port for allowing removable insertion of said endotracheal tube through said mask, and a curved distal portion inserted into said patient's mouth and hypopharynx; resuscitating said patient by supplying a flow of air/oxygen through said mask; inserting a fiber optic probe through said endotracheal tube; inserting said fiber optic probe and endotracheal tube through said port, along said guide, and into said patient's trachea while resuscitation continues; removing said fiber optic probe from within said endotracheal tube; removing said mask while leaving said endotracheal tube in place within said patient's trachea; and ventilating said patient through said endotracheal tube.
Claim 15
Independent Claim
133 words
A method for guiding insertion of an endotracheal tube into a patient's trachea comprising: placing a mask over said patient's mouth, said mask having a guide extending posteriorly from said mask with a sealable port for allowing removable insertion of said endotracheal tube through said mask, and a curved distal portion inserted into said patient's mouth and hypopharynx; resuscitating said patient by supplying a flow of air/oxygen through said mask; inserting a fiber optic probe through said endotracheal tube; inserting said fiber optic probe and endotracheal tube through said port, along said guide, and into said patient's trachea while resuscitation continues; removing said fiber optic probe from within said endotracheal tube; removing said mask while leaving said endotracheal tube in place within said patient's trachea; and ventilating said patient through said endotracheal tube.
Claim 16
Dependent Claim
21 words
The method of claim 12 wherein said port comprises a flexible membrane having a stretchable opening for receiving said endotracheal tube.
Claim 17
Dependent Claim
16 words
The method of claim 12 wherein said guide comprises a tube having a curved distal portion.
Claim 18
Dependent Claim
13 words
The method of claim 12 wherein said guide has a substantially U-shaped cross-section.
Claim 19
Dependent Claim
24 words
The method of claim 12 wherein said face mask further comprises a sealable face mask port having a stretchable opening for receiving said guide.
Claim 20
Dependent Claim
18 words
The method of claim 12 wherein said flow of oxygen/air is directed around the exterior of said guide.
References Cited (Backward Citations)
US3683908A
Cited
US3809079A
Cited
US4054135A
Cited
US4067331A
Cited
US4068658A
Cited
US4069820A
Cited
US4256099A
Cited
US4497318A
Cited
US4580556A
Cited
US4848331A
Cited
US5203320A
Cited
US5339805A
Cited
US5339808A
Cited
US5197463A
Cited
US5348000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-08 | 2001-06-09 | 2001-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-08 | 2005-06-09 | 2005-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-08 | 2009-06-09 | 2009-12-09 | $7700.00 | Window Closed / Lapsed |