US4913139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of translaryngeal retrograde tracheal intubation
Assignee: Individual
•
Filing: 1989-02-09
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Granted: 1990-04-03
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Expires: 2009-02-09
Abstract
Abstract A method of translaryngial retrograde tracheal intubation is disclosed which employs a guide wire 30 having flexible configurations on both ends. A superior end 34 having a magnet 33 therein for cooperation with a magnetic retrievel device is also disclosed. A balloon introducer 10 is disclosed for insertion into a standard endotracheal tube 20 such that after threading the superior end 34 of the orally retrieved guide wire through the tip of the introducer and out the distal end of the endotracheal tube, the endotracheal tube and introducer may be threaded through the oral pharynx 60, through the glottic opening 66, and the vocal chords 67 with minimal trauma to surrounding tissue. A method is disclosed wherein the interior end 32 of the guide wire is not retained at the insertion site, but is instead advanced inferiorally entirely into the trachea for anchoring in the tracheal tree, followed by guided insertion of an endotracheal tube 20 with a cooperating introducer 10 to minimize wandering of the tube upon the guide wire.
Inventors
- 👤 Donald H. Ballew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:02
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
174 words
A method of guided retrograde endotracheal intubation comprising the steps of: (a) percutaneous translaryngeal insertion of a guide wire into a trachea, said guide wire having a superior, flexible configured tip; (b) superior advancement of said guide wire and retrieval of said superior flexible tip in an oral pharynx; (c) threading said superior flexible tip into and through an endotracheal tube assembly, said tube assembly having therein and inflated introducer so arranged and structured that a flexible tip of said introducer protrudes at the forward end of said tube assembly, said introducer having disposed longitudinally within it a guide tube for receiving said superior flexible tip and said guide wire; (d) guiding said tube assembly inferiorly along said guide wire so that said tip of said introducer passes inferiorly through the oral pharynx, through a glottal opening and between the vocal chords; and (e) inflating a cuff on said tube assembly to seal the airway of said trachea, deflating said introducer, and withdrawing said introducer and said guide wire superiorally from said tube assembly.
Claim 2
Independent Claim
174 words
A method of guided retrograde endotracheal intubation comprising the steps of: (a) percutaneous translaryngeal insertion of a guide wire into a trachea, said guide wire having a superior, flexible configured tip; (b) superior advancement of said guide wire and retrieval of said superior flexible tip in an oral pharynx; (c) threading said superior flexible tip into and through an endotracheal tube assembly, said tube assembly having therein and inflated introducer so arranged and structured that a flexible tip of said introducer protrudes at the forward end of said tube assembly, said introducer having disposed longitudinally within it a guide tube for receiving said superior flexible tip and said guide wire; (d) guiding said tube assembly inferiorly along said guide wire so that said tip of said introducer passes inferiorly through the oral pharynx, through a glottal opening and between the vocal chords; and (e) inflating a cuff on said tube assembly to seal the airway of said trachea, deflating said introducer, and withdrawing said introducer and said guide wire superiorally from said tube assembly.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein said guide tube has a diameter just large enough to allow free passage therethrough of said superior flexible tip.
Claim 4
Dependent Claim
49 words
The method of claim 1 wherein said superior flexible tip is further comprised of a small powerful magnet, and said step of retrieving said superior flexible tip is achieved by inserting a magnetic wand into said oral pharynx to attract and catch said superior flexible tip with said magnet.
Claim 5
Dependent Claim
60 words
The method of claim 1 wherein the inferior end of said guide wire terminates in a flexible configured tip, said method further comprising a step immediately after retrieval of said superior flexible tip in the oral pharynx of withdrawing said guide wire assembly superiorally from said oral pharynx in order to pull said inferior flexible tip just into said trachea.
Claim 6
Dependent Claim
41 words
The method of claim 4 comprising the further step, after pulling said inferior flexible tip into said trachea, of advancing said inferior flexible tip inferiorly to a position in the tracheal tree where it can be anchored, and so anchoring it.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |