US3794036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulated inflatable cuff for an endotracheal or tracheostomy tube
Assignee: Individual
•
Filing: 1972-08-02
•
Granted: 1974-02-26
•
Expires: 1992-08-02
Abstract
Abstract An elastic cuff encircles a tracheostomy or endotracheal tube near its distal end and has opposite ends fitting tightly against the tube, with the proximal end of the cuff sealed to the tube. A tubule with a distal end opening into the inside of the cuff extends therefrom outwardly along the tube and has an outer end for air under pressure for inflating the cuff. The distal end of the cuff forms a check valve stretchable radially away from the tube by excessive air pressure in the cuff if the air delivered thereto through said tubule results in a pressure drop across the valve exceeding a predetermined amount, whereupon the pressure drop will be reduced to that predetermined amount.
Inventors
- 👤 R Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
The combination with an endotracheal or tracheostomy tube having distal and proximal ends, of an elastic cuff encircling the tube near its distal end and having opposite ends fitting tightly against the tube with the proximal end of the cuff sealed to the tube, and a tubule extending from the cuff outwardly along said tube and having a distal end communicating with the inside of the cuff, the proximal end of the tubule having an inlet for air under pressure for inflating the cuff, and the distal end of the cuff forming a check valve stretchable radially away from the tube by excessive air pressure in the cuff if the air delivered thereto through said tubule results in the pressure drop across said valve exceeding a predetermined amount, whereby said pressure drop will be reduced to said predetermined amount.
Claim 2
Dependent Claim
139 words
The combination with an endotracheal or tracheostomy tube having distal and proximal ends, of an elastic cuff encircling the tube near its distal end and having opposite ends fitting tightly against the tube with the proximal end of the cuff sealed to the tube, and a tubule extending from the cuff outwardly along said tube and having a distal end communicating with the inside of the cuff, the proximal end of the tubule having an inlet for air under pressure for inflating the cuff, and the distal end of the cuff forming a check valve stretchable radially away from the tube by excessive air pressure in the cuff if the air delivered thereto through said tubule results in the pressure drop across said valve exceeding a predetermined amount, whereby said pressure drop will be reduced to said predetermined amount.
Claim 3
Dependent Claim
26 words
The combination recited in claim 1, including means tacking said distal end of the cuff to the tube to prevent it from sliding along the tube.
Claim 4
Dependent Claim
22 words
The combination recited in claim 1, in which said distal end of the cuff is in the form of a cylindrical band.
Claim 5
Dependent Claim
39 words
The combination recited in claim 1, in which said distal end of the cuff is in the form of a cylindrical band secured at at least one point to the tube to prevent it from sliding along the tube.
Claim 6
Dependent Claim
41 words
The combination recited in claim 1, in which said distal end of the cuff is in the form of a cylindrical band provided with pleats extending outwardly across the band to points spaced inwardly from the outer edge of the band.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |