Patent US4802474A successfully refreshed from Google Patents.
US4802474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cover for tracheotomy tube
Assignee: Salter Labs Inc
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Filing: 1987-09-04
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Granted: 1989-02-07
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Expires: 2007-09-04
Abstract
Abstract Device for selectively preventing ingestion of foreign objects through a tracheal opening. One piece design particularly adaptable to inexpensive production from resilient material and easy maintenance.
Inventors
- 👤 Katherine K. Beevers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/047; A61M2205/00; A61M2205/32
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
115 words
A protective cover for a tracheotomy tube comprising: a collar adapted in size and shape to fit over and frictionally engage the end of the tracheotomy tube; an end plate in spaced relation with said collar; a plurality of cage bars interconnecting said end plate and collar, said plurality of cage bars aligned in parallel cylindrical spaced relationship, and further, spaced at sufficient intervals to permit the insertion of a standardized aspirating tube between any two cage bars; a surface flange integral with said frictional engagement means and said inhalation prevention means, adapted in size and shape to cover the annular space between said frictional engagement means and the surrounding tissue of the wearer's neck.
Claim 2
Dependent Claim
115 words
A protective cover for a tracheotomy tube comprising: a collar adapted in size and shape to fit over and frictionally engage the end of the tracheotomy tube; an end plate in spaced relation with said collar; a plurality of cage bars interconnecting said end plate and collar, said plurality of cage bars aligned in parallel cylindrical spaced relationship, and further, spaced at sufficient intervals to permit the insertion of a standardized aspirating tube between any two cage bars; a surface flange integral with said frictional engagement means and said inhalation prevention means, adapted in size and shape to cover the annular space between said frictional engagement means and the surrounding tissue of the wearer's neck.
Claim 3
Dependent Claim
19 words
The protective cover of claim 1 wherein said protective cover is made from a radio opaque medical grade plastic.
References Cited (Backward Citations)
US1065920A
Cited
US2039142A
Cited
US2393326A
Cited
US2491647A
Cited
US3066674A
Cited
US3137299A
Cited
US3330271A
Cited
US3952335A
Cited
US4325366A
Cited
EP0078685A1
Cited
US4582058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |