Patent US3924637A successfully refreshed from Google Patents.
US3924637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracheotomy tube
Assignee: Individual
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Filing: 1974-12-23
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Granted: 1975-12-09
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Expires: 1994-12-23
Abstract
Abstract Voice prosthesis for rehabilition of the voices of laryngectomes includes a tracheotomy tube extending through the neck into the trachea. This normally prevents the patient involved from speaking, as the air inhaled and exhaled may flow inwardly and outwardly through the tube. The present invention comprises a tracheotomy tube provided with a simple ball valve enclosed within the outer end of the tube which permits the patient to inhale air through the tube, and to close the tube to air being exhaled so that the air may be exhaled through the patient''s larnyx, permitting the patient to speak.
Inventors
- 👤 Arthur H Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:37
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0468
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A voice prosthesis for the rehabilitation of the voices of laryngecgectomees including: a tracheotomy tube adapted for connection between the outer atmosphere and the trachea, the outer end of the tube aDapted to be terminating adjacent the outer surface of the neck and open to atmosphere, a flange on said tube adapted to engage the outer surface of the neck, an attachment including a sleeve frictionally fitted into the outer end of the tracheotomy tube, a flange at one end of said sleeve to limit insertion of said sleeve into said tube, a ball within said sleeve of smaller diameter than the inner diameter of said sleeve, a valve seat inwardly of said flange on said sleeve against which said ball may seat to prevent the outward flow of air through said tube, and means at the inner end of said sleeve limiting inward movement of said ball within said sleeve when said ball is unseated from said seat.
Claim 2
Dependent Claim
159 words
A voice prosthesis for the rehabilitation of the voices of laryngecgectomees including: a tracheotomy tube adapted for connection between the outer atmosphere and the trachea, the outer end of the tube aDapted to be terminating adjacent the outer surface of the neck and open to atmosphere, a flange on said tube adapted to engage the outer surface of the neck, an attachment including a sleeve frictionally fitted into the outer end of the tracheotomy tube, a flange at one end of said sleeve to limit insertion of said sleeve into said tube, a ball within said sleeve of smaller diameter than the inner diameter of said sleeve, a valve seat inwardly of said flange on said sleeve against which said ball may seat to prevent the outward flow of air through said tube, and means at the inner end of said sleeve limiting inward movement of said ball within said sleeve when said ball is unseated from said seat.
References Cited (Backward Citations)
US3263684A
Cited
US3844290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |