Patent US2454329A successfully refreshed from Google Patents.
Patent EP0074809A1 successfully refreshed from Google Patents.
EP0074809A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multi-purpose tracheal tube
Assignee: Mallinckrodt Inc
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Filing: 1982-09-09
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Granted: —
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Expires: 2002-09-09
Abstract
Abstract A multi-purpose tracheal tube (2) for use with high frequency ventilation. The tube (2) (4) is an endotracheal tube including up to three lumens, in addition to the primary lumen, which serve various functions to provide versatility in the treatment of patients. In cuffed tubes one of the lumens is used for inflating the cuff (12) once the tube has been placed in the desired position in the trachea of the patient. Another lumen, referred to as the "insufflation lumen", is used to deliver oxygen or other gases by constant insufflation, intermittent jet ventilation or high frequency ventilation. The third lumen, when incorporated, is employed for monitoring and irrigation. The distal opening (42) of the irrigation or monitoring lumen is located just inside the distal tip (6) of the tube (4) while the insufflation lumen opening is located rearwardly toward the proximal end (7) of the tube (4) relative to the irrigation or monitoring lumen opening (42).
Inventors
- 👤 Thomas W. Mcgrail
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0402; A61M16/042; A61M16/0431; A61M16/0475; A61M16/0477; A61M16/0479; A61M16/0484; A61M16/0486; A61M16/0096; A61M16/0434; A61M2205/00; A61M2205/32
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
266 words
A balloon-type catheter comprising: (a) an extruded tube formed of flexible plastic material comprising a primary lumen and first, second, and third secondary lumens each of which has a smaller diameter than the primary lumen, all of said lumens extending substantially the entire length of the tube; (b) a smoothly rounded distal end tip on the catheter presenting the primary lumen in full opening and closing the end of each of the secondary lumens; (c) a proximal opening in said tube cut through the exterior tube wall into communication with the first secondary lumen, an inflation tube being fixed through said proximal opening to said first secondary lumen in said tube; (d) a distal opening cut through the exterior wall of the catheter adjacent the distal end into communication with said first secondary lumen; and (e) an inflatable balloon fixed about the catheter adjacent its distal end enveloping said distal opening of said first secondary lumen; (f) said second secondary lumen having a proximal opening through the exterior walls of the tube, a second tube fixed through said proximal opening of said second secondary lumen and a distal opening adjacent the distal end of the tube cut through the interior wall of the catheter into communication with said second secondary lumen; and (g) said third secondary lumen having a proximal opening through the exterior walls of the tube, a third tube fixed through said proximal opening of said third secondary lumen and a distal opening adjacent the distal end, displaced fromrthe distal opening of the second secondary lumen, forwardly toward the distal end of the catheter.
Claim 2
Dependent Claim
266 words
A balloon-type catheter comprising: (a) an extruded tube formed of flexible plastic material comprising a primary lumen and first, second, and third secondary lumens each of which has a smaller diameter than the primary lumen, all of said lumens extending substantially the entire length of the tube; (b) a smoothly rounded distal end tip on the catheter presenting the primary lumen in full opening and closing the end of each of the secondary lumens; (c) a proximal opening in said tube cut through the exterior tube wall into communication with the first secondary lumen, an inflation tube being fixed through said proximal opening to said first secondary lumen in said tube; (d) a distal opening cut through the exterior wall of the catheter adjacent the distal end into communication with said first secondary lumen; and (e) an inflatable balloon fixed about the catheter adjacent its distal end enveloping said distal opening of said first secondary lumen; (f) said second secondary lumen having a proximal opening through the exterior walls of the tube, a second tube fixed through said proximal opening of said second secondary lumen and a distal opening adjacent the distal end of the tube cut through the interior wall of the catheter into communication with said second secondary lumen; and (g) said third secondary lumen having a proximal opening through the exterior walls of the tube, a third tube fixed through said proximal opening of said third secondary lumen and a distal opening adjacent the distal end, displaced fromrthe distal opening of the second secondary lumen, forwardly toward the distal end of the catheter.
Claim 3
Dependent Claim
27 words
The catheter according to claim 1 wherein the distance between the distal openings of the second and third secondary lumens is between about two and ten centimeters.
Claim 4
Dependent Claim
20 words
The catheter according to claim 1 or 2 wherein said second secondary lumen is an insufflation lumen for delivering gases.
Claim 5
Dependent Claim
29 words
The catheter according to claim 3 wherein said insufflation lumen has a smaller cross-sectional area than that of the primary lumen at a ratio of about 1:7 to 1:13.
Claim 6
Dependent Claim
21 words
The catheter according to claim 1, 2, 3 or 4 wherein said third secondary lumen is an irrigation and monitoring lumen.
Claim 7
Dependent Claim
39 words
The catheter according to any one of claims 1 to 5 wherein said second secondary lumen is of cross-sectional area sufficient to accommodate gases delivered therethrough by any one of constant insufflation, jet ventilation and high frequency ventilation methods.
Claim 8
Dependent Claim
127 words
A catheter comprising: (a) an extruded tube formed of flexible plastic material comprising a primary lumen and a first secondary lumen, said secondary lumen having a smaller diameter than the primary lumen and extending substantially the entire length of the tube; and (b) a smoothly rounded distal end tip on the catheter presenting the primary lumen in full opening and closing the end of said secondary lumen; and (c) said secondary lumen being an insufflation lumen and having a proximal opening through the exterior wall of the tube, a first tube fixed through said proximal opening of said secondary lumen and a distal opening adjacent the first distal end of the tube cut through the interior wall of the catheter into communication with said first secondary lumen.
Claim 9
Dependent Claim
127 words
A catheter comprising: (a) an extruded tube formed of flexible plastic material comprising a primary lumen and a first secondary lumen, said secondary lumen having a smaller diameter than the primary lumen and extending substantially the entire length of the tube; and (b) a smoothly rounded distal end tip on the catheter presenting the primary lumen in full opening and closing the end of said secondary lumen; and (c) said secondary lumen being an insufflation lumen and having a proximal opening through the exterior wall of the tube, a first tube fixed through said proximal opening of said secondary lumen and a distal opening adjacent the first distal end of the tube cut through the interior wall of the catheter into communication with said first secondary lumen.
Claim 10
Dependent Claim
29 words
The catheter according to claim 7 wherein the distal opening for said insufflation lumen is located between 1 cm. and 10 cm. from the distal end of the catheter.
Claim 11
Dependent Claim
97 words
The catheter according to claim 7 or 8 further including a second secondary lumen for irrigation or monitoring airway pressure, said second secondary lumen having a second proximal opening through the exterior wall of the tube, a second tube fixed through said second proximal opening of said second secondary lumen and a second distal opening adjacent the distal end of the tube and cut through the interior wall of the tube into communication with said second secondary lumen, said second distal opening being displaced forwardly toward the distal end of the catheter from said first distal opening.
Claim 12
Dependent Claim
232 words
A balloon-type catheter comprising: (a) an extruded tube formed of flexible plastic material comprising a primary lumen with first and second secondary lumens_each of which has a smaller diameter than the primary,lumen, all of said lumens extending substantially the entire length of the tube; (b) a smoothly rounded distal end tip on the catheter presenting the primary lumen in full opening and closing the end of each of the secondary lumens; (c) a proximal opening in said tube cut through the exterior tube wall into communication with the first secondary lumen and an inflation tube fixed through said proximal opening in said tube; (d) a distal opening cut through the exterior wall of the catheter adjacent the distal end into communication with said first secondary lumen; and (e) an inflatable balloon fixed about the catheter adjacent its distal end enveloping said distal opening of said first secondary lumen; (f) said second secondary lumen having a proximal opening through the exterior wall of the tube, a second tube fixed through said proximal opening of said second secondary lumen and a distal opening adjacent the distal end of the tube cut through the interior wall of the catheter into communication with said second secondary lumen; and (g) said second secondary lumen being of cross-sectional area sufficient to accommodate gases delivered therethrough by any one of constant insufflation, jet ventilation and high frequency ventilation methods.
Claim 13
Dependent Claim
232 words
A balloon-type catheter comprising: (a) an extruded tube formed of flexible plastic material comprising a primary lumen with first and second secondary lumens_each of which has a smaller diameter than the primary,lumen, all of said lumens extending substantially the entire length of the tube; (b) a smoothly rounded distal end tip on the catheter presenting the primary lumen in full opening and closing the end of each of the secondary lumens; (c) a proximal opening in said tube cut through the exterior tube wall into communication with the first secondary lumen and an inflation tube fixed through said proximal opening in said tube; (d) a distal opening cut through the exterior wall of the catheter adjacent the distal end into communication with said first secondary lumen; and (e) an inflatable balloon fixed about the catheter adjacent its distal end enveloping said distal opening of said first secondary lumen; (f) said second secondary lumen having a proximal opening through the exterior wall of the tube, a second tube fixed through said proximal opening of said second secondary lumen and a distal opening adjacent the distal end of the tube cut through the interior wall of the catheter into communication with said second secondary lumen; and (g) said second secondary lumen being of cross-sectional area sufficient to accommodate gases delivered therethrough by any one of constant insufflation, jet ventilation and high frequency ventilation methods.
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