US4686977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracheal cannula
Assignee: Individual
•
Filing: 1986-04-03
•
Granted: 1987-08-18
•
Expires: 2006-04-03
Abstract
Abstract A tracheal cannula in which the cannula tube is pivotally coupled to its throat plate by a spherical ball formed at the external end of the tube and an engaging socket formed in the throat plate.
Inventors
- 👤 Frank Cosma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/08; A61M16/0816; A61M16/0825; A61M16/0488; A61M16/0497; Y; Y10; Y10S; Y10S128/00; Y10S128/26; Y10S128/912
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
A tracheal cannula comprising: an arcuate cannula tube having a first end for entering the trachea of a patient and a second end extending outward from the throat area of the patient; a throat plate coupled to the second end of said cannula tube and securable to said throat area, the second end of said cannula tube being formed with a spherical ball and wherein said throat plate is formed with a ball socket engaging said spherical ball whereby the coupling between said throat plate and said second end permits rotation of said cannula tube and free horizontal and vertical pivoting thereof with respect to said throat plate.
Claim 2
Dependent Claim
108 words
A tracheal cannula comprising: an arcuate cannula tube having a first end for entering the trachea of a patient and a second end extending outward from the throat area of the patient; a throat plate coupled to the second end of said cannula tube and securable to said throat area, the second end of said cannula tube being formed with a spherical ball and wherein said throat plate is formed with a ball socket engaging said spherical ball whereby the coupling between said throat plate and said second end permits rotation of said cannula tube and free horizontal and vertical pivoting thereof with respect to said throat plate.
Claim 3
Dependent Claim
52 words
The tracheal cannula claimed in claim 1 wherein said ball engaging socket if formed by a chamfered hole in said throat plate and a retaining ring having a similarly chamfered hole therein facing and attached to said throat plate and engaging the spherical ball at the second end of said cannula tube.
References Cited (Backward Citations)
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Cited
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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) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |