Patent US4593689A successfully refreshed from Google Patents.
US4593689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endotracheal tube including means for patient communication
Assignee: Individual
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Filing: 1985-04-15
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Granted: 1986-06-10
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Expires: 2005-04-15
Abstract
Abstract An endotracheal tube for allowing nasally intubated patients to speak comprising an elongated tube adapted for nasal intubation. The tube has an opening adjacent the patient's throat when intubated, and reed means in the opening. Interconnected first and second valves are at the proximal tube end and the opening, respectively, and are manually operable to open the tube proximal end and close the opening, and vice versa. The patient can breathe through the tube when the tube proximal end is open and the opening is closed. When the tube proximal end is closed and the opening is open, expiring air from the patient's lungs passes the reed means causing it to vibrate and produce an audible tone which can be altered by the patient's mouth and tongue to produce audible speech.
Inventors
- 👤 Kenneth S. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:40
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/20; A61M; A61M16/00; A61M16/0003; A61M16/0006; A61M16/04; A61M16/0461
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
76 words
An endotracheal tube for allowing nasally-intubated patients to speak, comprising an elongated tube adapted for nasal intubation, said tube having means positioned adjacent a patient's throat during intubation and being operable to produce an audible tone in voice range when expired air is passed by it, means for selectively blocking and allowing passage of expired air past said tone producing means, said audible tone being alterable by the patient's lips and tongue to produce intelligible speech.
Claim 2
Dependent Claim
76 words
An endotracheal tube for allowing nasally-intubated patients to speak, comprising an elongated tube adapted for nasal intubation, said tube having means positioned adjacent a patient's throat during intubation and being operable to produce an audible tone in voice range when expired air is passed by it, means for selectively blocking and allowing passage of expired air past said tone producing means, said audible tone being alterable by the patient's lips and tongue to produce intelligible speech.
Claim 3
Dependent Claim
33 words
The endotracheal tube claimed in claim 1, said tone producing means comprising reed means operable to vibrate when expired air is passed by it to produce a tone in the audible voice range.
Claim 4
Dependent Claim
33 words
The endotracheal tube claimed in claim 2, said reed means being disposed adjacent an opening in said tube, said selective blocking means including a valve selectively movable to block and unblock said opening.
Claim 5
Dependent Claim
39 words
The endotracheal tube claimed in claim 2, said reed means including at least a pair of reeds constructed and spaced to vibrate at a frequency of from about 100 to about 200 cps under the influence of expiring air.
Claim 6
Dependent Claim
58 words
The endotracheal tube claimed in claim 1, said tube having a proximal end, a manually-operable first valve at said proximal end operable to selectively open and close said tube, a second valve adjacent said tone producing means, said first and second valves being interconnected so that said first valve opens when said second valve closes, and vice versa.
Claim 7
Dependent Claim
48 words
The endotracheal tube claimed in claim 5, said first valve including one-way valve means operable, when said first valve is closed, to permit passage of air from outside said tube to said patient when said patient inhales, and to prevent said patient from exhaling past said first valve.
Claim 8
Dependent Claim
22 words
The endotracheal tube claimed in claim 5, said first and second valves being interconnected by an elongated wire passing through said tube.
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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) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |