Patent DE2824118B2 successfully refreshed from Google Patents.
US3682171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasal cannula
Assignee: Baxter International Inc
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Filing: 1971-03-31
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Granted: 1972-08-08
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Expires: 1991-03-31
Abstract
Abstract Nasal cannula device molded of a soft, flexible material includes a tubular member which supports a pair of integral cannula extensions. Openings at each end of the tubular member provide alternative connection points for an oxygen supply tube. An arch-like nose bridge engageable band member integrally attached to the tubular member outwardly of the cannula extensions has a layer of adhesive on its under surface for anchoring the cannula to the patient''s nose.
Inventors
- 👤 Carmelo P Dali
- 👤 Walter T Szempruch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:54
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0683; A61M16/0688; A61M16/0666; A61M16/0672
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
200 words
A nasal oxygen cannula formed of soft flexible material and comprising an elongated cannula member, a pair of nasal cannula extension portions integral with and extending generally radially outwardly from a central region of said cannula member, said pair of nasal cannula being in flow communication with said elongated cannula member, an arch-like portion adapted to extend across the bridge of the nose of a user integrally joined at its ends to regions of said cannula member which are spaced away from said central region and toward the respective ends of said cannula member, said arch-like portion extending from said cannula member in generally the same direction as said nasal cannula extension portions and having a width along a midline of the arch in a direction which is transverse to the length of the arch which is greater than the diameter of one of the cannula extension portions and less than the spacing along said midline between the cannula member and the remotest point of said arch-like portion, means on said arch-like portion for attaching same to the nose of a user, and at least one opening in said cannula member for connecting said cannula to a source of oxygen.
Claim 2
Dependent Claim
200 words
A nasal oxygen cannula formed of soft flexible material and comprising an elongated cannula member, a pair of nasal cannula extension portions integral with and extending generally radially outwardly from a central region of said cannula member, said pair of nasal cannula being in flow communication with said elongated cannula member, an arch-like portion adapted to extend across the bridge of the nose of a user integrally joined at its ends to regions of said cannula member which are spaced away from said central region and toward the respective ends of said cannula member, said arch-like portion extending from said cannula member in generally the same direction as said nasal cannula extension portions and having a width along a midline of the arch in a direction which is transverse to the length of the arch which is greater than the diameter of one of the cannula extension portions and less than the spacing along said midline between the cannula member and the remotest point of said arch-like portion, means on said arch-like portion for attaching same to the nose of a user, and at least one opening in said cannula member for connecting said cannula to a source of oxygen.
Claim 3
Dependent Claim
24 words
The nasal oxygen cannula of claim 1 wherein said arch-like portion has a width considerably greater than its thickness and a generally smooth undersurface.
Claim 4
Dependent Claim
24 words
The nasal oxygen cannula of claim 2 wherein said means for attaching includes a portion of said undersurface covered by a layer of adhesive.
Claim 5
Dependent Claim
30 words
The nasal oxygen cannula of claim 3 wherein said adhesive is of the pressure sensitive type and is protected before use by a layer of easily removed, lightly adherable material.
Claim 6
Dependent Claim
32 words
The nasal oxygen cannula of claim 1 wherein said cannula member has openings at each of its ends adapted to receive either a length of oxygen supply tubing or a sealing plug.
Claim 7
Dependent Claim
33 words
The nasal oxygen cannula of claim 1 wherein the ends of the cannula extensions which are remote from the cannula member have a greater internal diameter than the remainder of the cannula extensions.
Claim 8
Dependent Claim
24 words
The nasal oxygen cannula of claim 1 wherein the cannula extensions have their axes generally parallel to the transverse midline of the arch-like portion.
Claim 9
Dependent Claim
13 words
The nasal oxygen cannula of claim 1 wherein said cannula member is curved.
Claim 10
Dependent Claim
39 words
The nasal oxygen cannula of claim 1 wherein the width along the midline of said arch-like portion is approximately one half of the distance between the cannula member and the remotest point on the midline of said arch-like portion.
Claim 11
Dependent Claim
43 words
The nasal oxygen cannula of claim 9 wherein the width along the midline of said arch-like portion is less than one-half of the distance between the central region of the cannula member and the remotest point on the midline of said arch-like portion.
Claim 12
Dependent Claim
40 words
The nasal oxygen cannula of claim 9 wherein said arch-like portion has a width considerably greater than its thickness, is smooth on its undersurface, and is covered over a portion of said undersurface by a layer of pressure sensitive adhesive.
Claim 13
Dependent Claim
18 words
The nasal oxygen cannula of claim 11 wherein said cannula is injection molded of a soft vinyl plastic.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |