US4414977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasal dilator
Assignee: Wisconsin Alumni Research Foundation
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Filing: 1981-07-20
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Granted: 1983-11-15
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Expires: 2001-07-20
Abstract
Abstract A nasal dilator (10) is disclosed which is adapted to be inserted in the nostril of the human nose to prevent the tissues of the ostium internum of the nose from drawing in during breathing. The device includes generally elongated top and bottom rings (11, 12) which are spaced apart and connected together by a rear strut (13) and a front strut (14). The front strut (14) is longer than the rear strut (13) and includes a bend (15) therein formed at a position close to the front end of the bottom ring (12). One elongated side (17) of the top ring (11) may be concaved to better fit the septum at the ostium internum, and an elongated side (18) of the bottom ring (12) may also be concaved for maximum wearer comfort. When emplaced in the nose, the top ring (11) fits comfortably in the ostium (31) within the nostril to prevent the tissues therein from being drawn in during inhalation and to reduce extra flow resistance during exhalation, and the bottom ring (12) fits above the entrance to the nostril and serves to stabilize the position of the top ring within the nostril.
Inventors
- 👤 Saeed Rezakhany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:52
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
223 words
A nasal dilator adapted for emplacement in the vestibule of the nose to retain the tissues therein and provide a free air passage, comprising: (a) a top ring member having a generally elongated oval shape; (b) a bottom ring member having a generally elongated oval shape and being longer in the elongated dimension than the top ring; (c) a substantially straight rear strut extending between the rear elongated ends of the top and bottom ring members; (d) a front strut extending between the front elongated ends of the top and bottom ring members, the front strut being substantially longer than the rear strut and having a bend therein spaced closer to the bottom ring than to the top ring and arranged such that the front strut engages the bottom ring approximately perpendicular to the plane of the bottom ring, the top ring being sized to extend approximately the length of the ostium internum of the human nose, the bottom ring being sized to extend approximately the length of the bottom of the vestibule adjacent to the opening of the nostril, the struts spacing the top ring from the bottom ring a distance approximately equal to the distance from the ostium internum of the nostril to the bottom thereof, the top and bottom rings and the struts being formed of a non-irritating, biocompatible material.
Claim 2
Dependent Claim
223 words
A nasal dilator adapted for emplacement in the vestibule of the nose to retain the tissues therein and provide a free air passage, comprising: (a) a top ring member having a generally elongated oval shape; (b) a bottom ring member having a generally elongated oval shape and being longer in the elongated dimension than the top ring; (c) a substantially straight rear strut extending between the rear elongated ends of the top and bottom ring members; (d) a front strut extending between the front elongated ends of the top and bottom ring members, the front strut being substantially longer than the rear strut and having a bend therein spaced closer to the bottom ring than to the top ring and arranged such that the front strut engages the bottom ring approximately perpendicular to the plane of the bottom ring, the top ring being sized to extend approximately the length of the ostium internum of the human nose, the bottom ring being sized to extend approximately the length of the bottom of the vestibule adjacent to the opening of the nostril, the struts spacing the top ring from the bottom ring a distance approximately equal to the distance from the ostium internum of the nostril to the bottom thereof, the top and bottom rings and the struts being formed of a non-irritating, biocompatible material.
Claim 3
Dependent Claim
86 words
The dilator of claim 1 wherein one of the elongated sides of the top ring is concaved inwardly to adapt the top ring to fit firmly but without undue pressure to the ostium internum of the human nose with the concave side of the ring being adjacent to the inner or septum side of the nostril so that the dilator is adapted to be worn inside either the left or right nostril of the nose depending on which side of the ring the concavity is formed.
Claim 4
Dependent Claim
27 words
The dilator of claim 2 wherein the elongated side of the bottom ring which is adjacent to the concaved side of the top ring is also concaved.
Claim 5
Dependent Claim
54 words
The dilator of claim 1 wherein the top and bottom rings and the struts are formed of stainless steel wire, wherein the ends of the wires forming the rings are attached together with cadmium free silver solder, and wherein the struts are attached to the top and bottom rings with cadmium free silver solder.
Claim 6
Dependent Claim
49 words
The dilator of claim 1 wherein the top ring is approximately one-half inch in the long dimension and the bottom ring is approximately three-quarters inch in the long dimension, and wherein the material forming the rings and the struts is circular in cross-section and about one-thirty-second inch in diameter.
Claim 7
Dependent Claim
37 words
The dilator of claim 1 wherein the front ends of the top and bottom rings are spaced approximately five-eighths inch apart and the rear ends of the top and bottom rings are spaced approximately one-quarter inch apart.
References Cited (Backward Citations)
FR469010A
Cited
US1597331A
Cited
US1672591A
Cited
US1709740A
Cited
US2335936A
Cited
US2672138A
Cited
US3192928A
Cited
US3710799A
Cited
US4105035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |