US4367735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasal cannula
Assignee: Union Trust Co
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Filing: 1979-12-31
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Granted: 1983-01-11
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Expires: 1999-12-31
Abstract
Abstract An improved nasal cannula is made of a soft pliable material and has two hollow tubular prongs which are ribbed to prevent significant closure of the airways through the prongs upon bending of the prongs and a base adapted to receive a soft strip of foam-like material which can be attached to a skull cap for securing the prongs of the cannula in the nasal passages of a patient.
Inventors
- 👤 Carmelo Dali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:56
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0683; A61M16/0666
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
A nasal cannula for aiding the breathing of a patient by use of a respirator comprising: a body made of a soft pliable material and including two hollow tubular bored prongs and a base, each prong having a nasal end and a respirator end, the respirator ends of the prongs merging adjacent said base, said base having an axial bore in communication with the bores of said prongs, the periphery of substantially the entire length of each prong intermediate said nasal and respirator ends being provided on its outer circumference with axially displaced circular ribs integrally formed and occupying planes substantially normal to the respective longitudinal axes of said tubular prong to permit flexing of each prong and substantially maintain the original cross-sectional diameter of the tubular bored prongs.
Claim 2
Dependent Claim
129 words
A nasal cannula for aiding the breathing of a patient by use of a respirator comprising: a body made of a soft pliable material and including two hollow tubular bored prongs and a base, each prong having a nasal end and a respirator end, the respirator ends of the prongs merging adjacent said base, said base having an axial bore in communication with the bores of said prongs, the periphery of substantially the entire length of each prong intermediate said nasal and respirator ends being provided on its outer circumference with axially displaced circular ribs integrally formed and occupying planes substantially normal to the respective longitudinal axes of said tubular prong to permit flexing of each prong and substantially maintain the original cross-sectional diameter of the tubular bored prongs.
Claim 3
Dependent Claim
21 words
Apparatus according to claim 1 further comprising a bulbus portion integrally formed on the nasal end of each of said prongs.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 2 wherein said prongs are ribbed along their entire lengths between the bulbus portions and the region of merger adjacent said base.
Claim 5
Dependent Claim
27 words
Apparatus according to claim 1 wherein said base has an aperture and further comprising means for tying said cannula to the patient securely receivable within said aperture.
Claim 6
Dependent Claim
15 words
Apparatus according to claim 4 wherein said tying means includes an elongated soft flexible strip.
Claim 7
Dependent Claim
30 words
Apparatus according to claim 4 further comprising a skull cap, and a plurality of flexible strips attached to said skull cap and secured to the base of the nasal cannula.
Claim 8
Dependent Claim
21 words
Apparatus according to claim 6 wherein said strips are attached to said skull cap at substantially equally angular displaced regions thereon.
Claim 9
Dependent Claim
78 words
Apparatus according to claim 1 further comprising a connector member having a nasal end, a respirator end and an axial bore extending from said nasal end to said respirator end, said connector member nasal end being snuggly received within the bore in the base of said body whereby the bores in said prongs are in communication with the bore in said connector member, said respirator end of said connector member being adapted for removable engagement with said respirator.
Claim 10
Dependent Claim
25 words
Apparatus according to claim 5 wherein said connector member is made from a material more rigid than the material from which said body is formed.
References Cited (Backward Citations)
FR780746A
Cited
US2693800A
Cited
US2751906A
Cited
US3013556A
Cited
US3858615A
Cited
US3867946A
Cited
US4018221A
Cited
US4050466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |