US4649913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracheostomy tube assemblies
Assignee: SMITHS INDUSTRIES A BRITISH Co PLC
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Filing: 1985-07-08
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Granted: 1987-03-17
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Expires: 2005-07-08
Abstract
Abstract A tracheostomy tube assembly has a tube the forward end of which is located within the trachea and supports an inflatable sealing cuff. The rear end of the assembly supports a soft, semi-flexible flange having slots which receive a tape by which the assembly is secured about the patient's neck. The assembly also carries a second inflatable plastics cuff mounted on the flange, which encircles the tube and has a raised portion on opposite sides of the tube. The volume of the second cuff, when inflated, is sufficient to accommodate the space between the flange and the neck without elastic deformation of the cuff.
Inventors
- 👤 Jeremy P. Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:47
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0488; A61M16/0497; A61M16/08; A61M16/0816; A61M16/0825
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
A tracheostomy tube assembly having a tube with a forward end and a rear end, the size and shape of the tube being such that when the forward end is inserted into a patient's trachea through an opening in the patient's neck the rear end projects from the opening, the assembly including a flange by which the tube assembly is secured to the patient's neck, means fixedly securing said flange with said rear end against movement along the tube, the rear end of the assembly including at least one inflatable cuff, and means supporting said cuff at a location externally of the tube and entirely externally of the patient's neck intermediate the flange and the external surface of the patient's neck, said cuff having inlet means whereby fluid can be introduced to the cuff such that any space between the flange and the patient's neck can be accommodated by inflating the cuff.
Claim 2
Dependent Claim
152 words
A tracheostomy tube assembly having a tube with a forward end and a rear end, the size and shape of the tube being such that when the forward end is inserted into a patient's trachea through an opening in the patient's neck the rear end projects from the opening, the assembly including a flange by which the tube assembly is secured to the patient's neck, means fixedly securing said flange with said rear end against movement along the tube, the rear end of the assembly including at least one inflatable cuff, and means supporting said cuff at a location externally of the tube and entirely externally of the patient's neck intermediate the flange and the external surface of the patient's neck, said cuff having inlet means whereby fluid can be introduced to the cuff such that any space between the flange and the patient's neck can be accommodated by inflating the cuff.
Claim 3
Dependent Claim
15 words
A tracheostomy tube assembly according to claim 1, wherein the said cuff encircles the tube.
Claim 4
Dependent Claim
22 words
A tracheostomy tube assembly according to claim 1, wherein the said cuff has a raised portion on opposite sides of the tube.
Claim 5
Dependent Claim
35 words
A tracheostomy tube assembly according to claim 1, wherein the volume of the said cuff when inflated is sufficient to accommodate the space between the flange and the neck without elastic deformation of the cuff.
Claim 6
Dependent Claim
17 words
A tracheostomy tube assembly according to claim 1, wherein the said cuff is secured to the flange.
Claim 7
Dependent Claim
17 words
A tracheostomy tube assembly according to claim 1, wherein the said cuff is of a plastics material.
Claim 8
Dependent Claim
18 words
A tracheostomy tube assembly according to claim 1 wherein the said flange is of a soft, semi-flexible material.
Claim 9
Dependent Claim
30 words
A tracheostomy tube assembly according to claim 1, wherein the said flange is formed with slots that receive a tape by which the assembly is secured to the patient's neck.
References Cited (Backward Citations)
US1835757A
Cited
US3137299A
Cited
US3889688A
Cited
US3973569A
Cited
GB2028139A
Cited
US4449526A
Cited
US4449523A
Cited
US4459984A
Cited
US4559940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |