US5054483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracheal cannulas and stents
Assignee: Hood Laboratories Inc
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Filing: 1990-05-22
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Granted: 1991-10-08
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Expires: 2010-05-22
Abstract
Abstract Disclosure is made of an improvement in the T-shaped tracheal stents and in the tracheal cannulas of the prior art, permitting one to conveniently have a complete and unitary unit including a closure member affixed to the device of the invention. Unidirectional retention sleeves are also described, which may be used in conjunction with the cannulas and the stents of the invention.
Inventors
- 👤 Lewis H. Marten
- 👤 Charles Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:45
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; A61M16/00; A61M16/04; A61M16/0465; A61M2025/0213; A61M2025/0253
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
189 words
A tracheal cannula comprising: A. a hollow tube having (i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision; (ii) a second open end for communication with the atmosphere outside said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal; and (iii) a tube body between the open ends; and B. closure means integral with said hollow tube and having: (i) a severable stem frangibly attached to said hollow tube at a point adjacent to said second open end; (ii) a plug adapted by size and configuration to fit in said second open end to form a fluid seal therewith; and (iii) handle means for connecting said plug to said stem and for gripping the closure means, said handle means including a perforation adapted by size, and configuration to fit over said tube to hold the closure means on said tube body after separation from said tube, said handle means having a length selected to allow said plug to be inserted in said second open end without separating said stem from said tube.
Claim 2
Dependent Claim
189 words
A tracheal cannula comprising: A. a hollow tube having (i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision; (ii) a second open end for communication with the atmosphere outside said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal; and (iii) a tube body between the open ends; and B. closure means integral with said hollow tube and having: (i) a severable stem frangibly attached to said hollow tube at a point adjacent to said second open end; (ii) a plug adapted by size and configuration to fit in said second open end to form a fluid seal therewith; and (iii) handle means for connecting said plug to said stem and for gripping the closure means, said handle means including a perforation adapted by size, and configuration to fit over said tube to hold the closure means on said tube body after separation from said tube, said handle means having a length selected to allow said plug to be inserted in said second open end without separating said stem from said tube.
Claim 3
Dependent Claim
15 words
A cannula of claim 1 fabricated in a unitary, single piece from a silicone rubber.
Claim 4
Dependent Claim
29 words
A cannula of claim 1 wherein the first open end is integrally joined to a stent portion, adapted by size and configuration to be received in the mammal's trachea.
Claim 5
Dependent Claim
14 words
A cannula of claim 1 wherein the tube body has a smooth outer surface.
Claim 6
Dependent Claim
19 words
A cannula of claim 1 wherein the surface of the handle disposed about the perforation is a friction surface.
Claim 7
Dependent Claim
20 words
A cannula of claim 5 wherein the perforation is of a size less than the diameter of the tube body.
Claim 8
Dependent Claim
15 words
A cannula of claim 1 wherein the handle is a cylindrical, oval or flat strip.
Claim 9
Dependent Claim
19 words
A cannula of claim 1 wherein the handle has two perforations joined together by a slit in the handle.
Claim 10
Dependent Claim
167 words
An assembly, which comprises; A. A tracheal cannula, which comprises a hollow tube having (i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision; (ii) a second open end for communication with the atmosphere outside of said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal with a closure means; and (iii) a tube body between the open ends, having a smooth outer tube surface and an inner tube surface defining an interior lumen traversing the tube body from first end to second end; and (B) a closure frangibly connected to said tube, means adapted by size and configuration to close and form a fluid seal with the second open end of the hollow tube, said closure means having handle means for gripping the closure means, said handle means being a perforated member, said perforation being adapted by size and configuration to receive therein in a frictional fit, the tube body.
Claim 11
Dependent Claim
167 words
An assembly, which comprises; A. A tracheal cannula, which comprises a hollow tube having (i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision; (ii) a second open end for communication with the atmosphere outside of said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal with a closure means; and (iii) a tube body between the open ends, having a smooth outer tube surface and an inner tube surface defining an interior lumen traversing the tube body from first end to second end; and (B) a closure frangibly connected to said tube, means adapted by size and configuration to close and form a fluid seal with the second open end of the hollow tube, said closure means having handle means for gripping the closure means, said handle means being a perforated member, said perforation being adapted by size and configuration to receive therein in a frictional fit, the tube body.
Claim 12
Dependent Claim
13 words
The assembly of claim 9 wherein the closure means is a solid plug.
Claim 13
Dependent Claim
15 words
The assembly of claim 9 wherein the hollow tube is fabricated from a silicone rubber.
Claim 14
Dependent Claim
19 words
The assembly of claim 9 wherein the surface of the handle disposed about the perforation is a friction surface.
Claim 15
Dependent Claim
19 words
The assembly of claim 9 wherein there is a second perforation joined to the first perforation by a slit.
Claim 16
Dependent Claim
33 words
The assembly of claim 9 wherein the first open end is integrally joined to a stent portion, adapted by size and configuration to be received in a mammal's trachea through a tracheotomy incision.
Claim 17
Dependent Claim
24 words
A cannula of claim 9 wherein said handle means includes an aperture with a diameter smaller than the outer diameter of said tube body.
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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) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |