Patent US3668509A successfully refreshed from Google Patents.
US4033353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracheostomy tube
Assignee: CRBARD Inc A CORP OF NJ
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Filing: 1975-10-16
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Granted: 1977-07-05
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Expires: 1995-10-16
Abstract
Abstract A tracheostomy tube, shaped to conform to the trachea, and including an inner and an outer cannula. The extremities of the cannulae inserted in the trachea are in frictional contact to prevent significant gas flow through the annular space between the cannulae. The opposite extremity of the outer cannula is shaped for connection to a respirator with the corresponding end of the inner cannula attached to an adaptive member through a nutating connection. The adaptive member is shaped at its inner end for connection to the outer cannula and at its outer end to a respirator. The outer cannula may include an inflatable cuff for sealing the cannulae within the trachea and a flexible neck flange for limiting the motion of the tracheostomy tube.
Inventors
- 👤 John La Rosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/0497; A61M16/0402; A61M16/0427; A61M16/0465; A61M16/0429; A61M2205/00; A61M2205/32
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
189 words
A tracheostomy tube comprising: an outer cannula for insertion into a trachea, said outer cannula having interior and exterior extremities, said exterior extremity of said outer cannula having means for connection to a respirator; an inner cannula disposed to fit removably within said outer cannula, said inner cannula having interior and exterior extremities; means for preventing significant gas flow between said inner and outer cannulae; and an adaptive member having an interior nutating connection to said inner cannula, said adaptive member also including at its inner end means for connection to said exterior extremity of said outer cannula and at its outer end means for connection to a respirator, said nutating connection comprising an exterior annular groove on the exterior extremity of said inner cannula and an interior annular ridge within said adaptive member, said ridge fitting within said groove and connecting said inner cannula to said adaptive member while allowing limited movement therebetween, the width of said groove being significantly greater than the width of said ridge and the inside diameter of said groove being significantly less than the diameter of the inner surface of said annular ridge.
Claim 2
Dependent Claim
189 words
A tracheostomy tube comprising: an outer cannula for insertion into a trachea, said outer cannula having interior and exterior extremities, said exterior extremity of said outer cannula having means for connection to a respirator; an inner cannula disposed to fit removably within said outer cannula, said inner cannula having interior and exterior extremities; means for preventing significant gas flow between said inner and outer cannulae; and an adaptive member having an interior nutating connection to said inner cannula, said adaptive member also including at its inner end means for connection to said exterior extremity of said outer cannula and at its outer end means for connection to a respirator, said nutating connection comprising an exterior annular groove on the exterior extremity of said inner cannula and an interior annular ridge within said adaptive member, said ridge fitting within said groove and connecting said inner cannula to said adaptive member while allowing limited movement therebetween, the width of said groove being significantly greater than the width of said ridge and the inside diameter of said groove being significantly less than the diameter of the inner surface of said annular ridge.
Claim 3
Dependent Claim
63 words
The tracheostomy tube of claim 1 wherein said inner cannula is generally concentric with said outer cannula with the inside diameter of the outer cannula at the interior extremity of said outer cannula equal to the outside diameter of the interior extremity of said inner cannula and in contact therewith for preventing significant gas flow between said inner cannula and said outer cannula.
Claim 4
Dependent Claim
27 words
The tracheostomy tube of claim 1 including an inflatable endotracheal cuff, said cuff being affixed to the exterior surface of said outer cannula adjacent its inner extremity.
Claim 5
Dependent Claim
52 words
The tracheostomy tube of claim 3 wherein said endotracheal cuff is comprised of a tubular elastic member, said tubular elastic member being sealed at each of its extremities, and wherein said tracheostomy tube includes means for flow communication between the interior of said tubular elastic member and a source of pneumatic pressure.
Claim 6
Dependent Claim
24 words
The tracheostomy tube of claim 4 wherein said communicating means comprise a tube within a groove in the exterior wall of said outer cannula.
Claim 7
Dependent Claim
32 words
The tracheostomy tube of claim 4 including an inflatable member, said inflatable member being in flow communication with said inflatable cuff, said inflatable member indicating the inflation condition of said endotracheal cuff.
Claim 8
Dependent Claim
35 words
The tracheostomy tube of claim 6 wherein said flow communicating means includes a self-sealing valve, said self-sealing valve allowing introduction of pneumatic pressure within said endotracheal cuff and said inflatable member in flow communication therewith.
Claim 9
Dependent Claim
38 words
The tracheostomy tube of claim 1 wherein the means for connecting said outer cannula to a respirator comprises a fitting including an annular anti-torque ring attached thereto, said anti-torque ring being free to rotate around said outer cannula.
Claim 10
Dependent Claim
42 words
The tracheostomy tube of claim 1 wherein the means for connecting the outer end of said adaptive member to a respirator comprises a fitting including an annular anti-torque ring attached thereto, said anti-torque ring being free to rotate around said adaptive member.
Claim 11
Dependent Claim
24 words
The tracheostomy tube of claim 1 wherein said adaptive member includes means for preventing substantial rotation of said inner cannula within said adaptive member.
Claim 12
Dependent Claim
52 words
The tracheostomy tube of claim 1 including an elongated flexible neck flange attached to said outer cannula, said neck flange comprising a plurality of flexible webs having slots proximate the extremities thereof, said slots being adapted to receive means for immobilizing said neck flange at the site of insertion of said tube.
Claim 13
Dependent Claim
149 words
A tracheostomy tube comprising: an outer cannula for insertion into a trachea, said outer cannula having interior and exterior extremities, said exterior extremity of said outer cannula having means for connection to a respirator; an inner cannula disposed to fit removably within said outer cannula, said inner cannula having interior and exterior extremities; means for preventing significant gas flow between said inner and outer cannulae; and an adaptive member having an interior nutating connection to said inner cannula, said adaptive member also including at its inner end means for connection to said exterior extremity of said outer cannula and at its outer end means for connection to a respirator, said adaptive member including means for preventing substantial rotation of said inner cannula within said adaptive member, said rotation preventing means comprising an aligning key on said adaptive member and slot on said inner cannula disposed to receive said key.
Claim 14
Dependent Claim
149 words
A tracheostomy tube comprising: an outer cannula for insertion into a trachea, said outer cannula having interior and exterior extremities, said exterior extremity of said outer cannula having means for connection to a respirator; an inner cannula disposed to fit removably within said outer cannula, said inner cannula having interior and exterior extremities; means for preventing significant gas flow between said inner and outer cannulae; and an adaptive member having an interior nutating connection to said inner cannula, said adaptive member also including at its inner end means for connection to said exterior extremity of said outer cannula and at its outer end means for connection to a respirator, said adaptive member including means for preventing substantial rotation of said inner cannula within said adaptive member, said rotation preventing means comprising an aligning key on said adaptive member and slot on said inner cannula disposed to receive said key.
Claim 15
Dependent Claim
52 words
The tracheostomy tube of claim 12 wherein said nutating connection comprises an exterior annular groove on the exterior extremity of said inner cannula and an interior annular ridge within said adaptive member, said ridge fitting within said groove and connecting said inner cannula to said adaptive member while allowing limited movement therebetween.
Claim 16
Dependent Claim
42 words
The tracheostomy tube of claim 13 wherein the width of said groove is significantly greater than the width of said ridge and the inside diameter of said groove is significantly less than the diameter of the inner surface of said annular ridge.
Claim 17
Dependent Claim
63 words
The tracheostomy tube of claim 12 wherein said inner cannula is generally concentric with said outer cannula with the inside diameter of the outer cannula at the interior extremity of said outer cannula equal to the outside diameter of the interior extremity of said inner cannula and in contact therewith for preventing significant gas flow between said inner cannula and said outer cannula.
Claim 18
Dependent Claim
27 words
The tracheostomy tube of claim 12 including an inflatable endotracheal cuff, said cuff being affixed to the exterior surface of said outer cannula adjacent its inner extremity.
Claim 19
Dependent Claim
52 words
The tracheostomy tube of claim 16 wherein said endotracheal cuff is comprised of a tubular elastic member, said tubular elastic member being sealed at each of its extremities, and wherein said tracheostomy tube includes means for flow communication between the interior of said tubular elastic member and a source of pneumatic pressure.
Claim 20
Dependent Claim
24 words
The tracheostomy tube of claim 17 wherein said communicating means comprise a tube within a groove in the exterior wall of said outer cannula.
Claim 21
Dependent Claim
32 words
The tracheostomy tube of claim 17 including an inflatable member, said inflatable member being in flow communication with said inflatable cuff, said inflatable member indicating the inflation condition of said endotracheal cuff.
Claim 22
Dependent Claim
35 words
The tracheostomy tube of claim 19 wherein said flow communicating means includes a self-sealing valve, said self-sealing valve allowing introduction of pneumatic pressure within said endotracheal cuff and said inflatable member in flow communication therewith.
Claim 23
Dependent Claim
38 words
The tracheostomy tube of claim 12 wherein the means for connecting said outer cannula to a respirator comprises a fitting including an annular anti-torque ring attached thereto, said anti-torque ring being free to rotate around said outer cannula.
Claim 24
Dependent Claim
42 words
The tracheostomy tube of claim 12 wherein the means for connecting the outer end of said adaptive member to a respirator comprises a fitting including an annular anti-torque ring attached thereto, said anti-torque ring being free to rotate around said adaptive member.
Claim 25
Dependent Claim
52 words
The tracheostomy tube of claim 12 including an elongated flexible neck flange attached to said outer cannula, said neck flange comprising a plurality of flexible webs having slots proximate the extremities thereof, said slots being adapted to receive means for immobilizing said neck flange at the site of insertion of said tube.
Claim 26
Dependent Claim
138 words
A tracheostomy tube comprising: an outer cannula for insertion into a trachea and having interior and exterior extremities; an inner cannula removably disposed within said outer cannula, said inner cannula having interior and exterior extremities; an adaptive member, means providing an interior nutating connection between said inner cannula and said adaptive member, said adaptive member including at its inner end means for connection to said exterior extremity of said outer cannula and at its outer end means for connection to a respirator, said exterior extremity of said outer cannula having means for connection to a respirator to enable air flow through said outer cannula when said inner cannula is removed; and means at a location spaced from said adaptive member and along said inner and outer cannulae for preventing significant gas flow between said inner and outer cannulae.
Claim 27
Dependent Claim
138 words
A tracheostomy tube comprising: an outer cannula for insertion into a trachea and having interior and exterior extremities; an inner cannula removably disposed within said outer cannula, said inner cannula having interior and exterior extremities; an adaptive member, means providing an interior nutating connection between said inner cannula and said adaptive member, said adaptive member including at its inner end means for connection to said exterior extremity of said outer cannula and at its outer end means for connection to a respirator, said exterior extremity of said outer cannula having means for connection to a respirator to enable air flow through said outer cannula when said inner cannula is removed; and means at a location spaced from said adaptive member and along said inner and outer cannulae for preventing significant gas flow between said inner and outer cannulae.
Claim 28
Dependent Claim
52 words
The tracheostomy tube of claim 24 wherein said nutating connection comprises an exterior annular groove on the exterior extremity of said inner cannula and an interior annular ridge within said adaptive member, said ridge fitting within said groove and connecting said inner cannula to said adaptive member while allowing limited movement therebetween.
Claim 29
Dependent Claim
42 words
The tracheostomy tube of claim 25 wherein the width of said groove is significantly greater than the width of said ridge and the inside diameter of said groove is significantly less than the diameter of the inner surface of said annular ridge.
Claim 30
Dependent Claim
63 words
The tracheostomy tube of claim 24 wherein said inner cannula is generally concentric with said outer cannula with the inside diameter of the outer cannula at the interior extremity of said outer cannula equal to the outside diameter of the interior extremity of said inner cannula and in contact therewith for preventing significant gas flow between said inner cannula and said outer cannula.
Claim 31
Dependent Claim
26 words
The tracheostomy tube of claim 24 including an inflatable endotracheal cuff, said cuff affixed to the exterior surface of said outer cannula adjacent its inner extremity.
Claim 32
Dependent Claim
52 words
The tracheostomy tube of claim 28 wherein said endotracheal cuff is comprised of a tubular elastic member, said tubular elastic member being sealed at each of its extremities, and wherein said tracheostomy tube includes means for flow communication between the interior of said tubular elastic member and a source of pneumatic pressure.
Claim 33
Dependent Claim
24 words
The tracheostomy tube of claim 29 wherein said communicating means comprises a tube within a groove in the exterior wall of said outer cannula.
Claim 34
Dependent Claim
32 words
The tracheostomy tube of claim 29 including an inflatable member, said inflatable member being in flow communication with said inflatable cuff, said inflatable member indicating the inflation condition of said endotracheal cuff.
Claim 35
Dependent Claim
35 words
The tracheostomy tube of claim 31 wherein said flow cummunicating means includes a self-sealing valve, said self-sealing valve allowing introduction of pneumatic pressure within said endotracheal cuff and said inflatable member in flow communication therewith.
Claim 36
Dependent Claim
38 words
The tracheostomy tube of claim 24 wherein the means for connecting said outer cannula to a respirator comprises a fitting including an annular anti-torque ring attached thereto, said anti-torque ring being free to rotate around said outer cannula.
Claim 37
Dependent Claim
42 words
The tracheostomy tube of claim 24 wherein the means for connecting the outer end of said adaptive member to a respirator comprises a fitting including an annular anti-torque ring attached thereto, said anti-torque ring being free to rotate around said adaptive member.
Claim 38
Dependent Claim
24 words
The tracheostomy tube of claim 24 wherein said adaptive member includes means for preventing substantial rotation of said inner cannula within said adaptive member.
Claim 39
Dependent Claim
31 words
The tracheostomy tube of claim 35 wherein said rotation preventing means comprise an aligning key on said adaptive member and a slot on said inner cannula disposed to receive said key.
Claim 40
Dependent Claim
52 words
The tracheostomy tube of claim 24 including an elongated flexible neck flange attached to said outer cannula, said neck flange comprising a plurality of flexible webs having slots proximate the extremities thereof, said slots being adapted to receive means for immobilizing said neck flange at the site of insertion of said tube.
Claim 41
Dependent Claim
43 words
The tracheostomy tube of claim 24 wherein said respirator connection means on said outer cannula and said respirator connection means on said adaptive member have substantially identical external configurations for connection of either the outer cannula or adaptive member to a common respirator.
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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) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |