US3814103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binasal pharyngeal airway
Assignee: Shiley Laboratories Inc
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Filing: 1973-03-08
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Granted: 1974-06-04
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Expires: 1993-03-08
Abstract
Abstract A binasal pharyngeal airway is provided for administering anesthetic which includes a tube connector having hollow legs for connection of pharyngeal tubes, and a hollow swivel body with a swivel connection to said tube connector, having a suction hole opposite the connection to the tube connector for receiving a suction catheter within either of said tube connector hollow legs and having a side opening to receive a snap fitting for connection to an anesthetic line. The airway may be manufactured inexpensively and as a consequence may be disposed of after a one-time use.
Inventors
- 👤 B Fettel
- 👤 S Burd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0666; A61M16/08; A61M16/0816; A61M16/0825
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
246 words
In a binasal pharyngeal airway having a pair of pharyngeal tubes and means for connecting said tubes to an anesthetic-line, the improvement wherein said connecting means comprises: a hollow swivel body permitting two degrees of freedom of movement between said anesthetic-line and said pharyngeal tubes, said swivel body having a first opening in one end formed with a lip around the edges thereof, a second opening for permitting access to the interior of said swivel body, means for selectively closing said second opening, and a side opening formed with an annular groove therearound; a tube connector having an upper opening formed with an annular groove therearound engaged with said lip of said hollow swivel body to provide a rotatable snap-in swivel connection between said hollow swivel body and said connector, a pair of downwardly extending rigid hollow legs respectively engaging said pharyngeal tubes means forming an apex between said legs directed toward the second, selectively closable opening in said swivel body to facilitate the passage of a catheter or the like through said connecting means and into one or the other of said legs; and an anesthetic-line connector having an opening in one end formed with a lip therearound the edges thereof engaged in the annular groove around the said side opening of said hollow swivel body to provide a rotatable snap-in swivel connection between said hollow swivel body and said connector, and an opening for providing a passage for fluid flow from said anesthetic line.
Claim 2
Dependent Claim
246 words
In a binasal pharyngeal airway having a pair of pharyngeal tubes and means for connecting said tubes to an anesthetic-line, the improvement wherein said connecting means comprises: a hollow swivel body permitting two degrees of freedom of movement between said anesthetic-line and said pharyngeal tubes, said swivel body having a first opening in one end formed with a lip around the edges thereof, a second opening for permitting access to the interior of said swivel body, means for selectively closing said second opening, and a side opening formed with an annular groove therearound; a tube connector having an upper opening formed with an annular groove therearound engaged with said lip of said hollow swivel body to provide a rotatable snap-in swivel connection between said hollow swivel body and said connector, a pair of downwardly extending rigid hollow legs respectively engaging said pharyngeal tubes means forming an apex between said legs directed toward the second, selectively closable opening in said swivel body to facilitate the passage of a catheter or the like through said connecting means and into one or the other of said legs; and an anesthetic-line connector having an opening in one end formed with a lip therearound the edges thereof engaged in the annular groove around the said side opening of said hollow swivel body to provide a rotatable snap-in swivel connection between said hollow swivel body and said connector, and an opening for providing a passage for fluid flow from said anesthetic line.
Claim 3
Dependent Claim
30 words
In a binasal pharyngeal airway as described in claim 1 wherein each of said hollow legs are externally barbed with sloping ridges to receive and securely retain said pharyngeal tubes.
Claim 4
Dependent Claim
210 words
In a binasal pharyngeal airway having a pair of pharyngeal tubes and means connecting said tubes to an anesthetic-line, the improvement wherein the connecting means comprises: a hollow swivel body so constructed as to permit two degress of freedom of movement between said anesthetic-line and said pharyngeal tubes, said swivel body having first, second and third openings providing passageways into the hollow interior thereof; a tube connector rotatably connected to said first opening to permit fluid flow through the connector into said hollow interior and means forming two hollow legs with an apex therebetween, said legs being so constructed as to permit attachment of said pharyngeal tubes thereto, with the apex pointing in the direction of said first opening; means for selectively closing said second opening and opening the same to permit insertion of a catheter or the like through said swivel body into one or the other of said pharyngeal tubes, said apex being so constructed and disposed as to act as a guide during the insertion of such catheter or the like; and an anesthetic-line connector rotatably connected to said third opening for connecting an anesthetic-line to the swivel body to permit fluid flow from the anesthetic-line through the swivel body and tube connector into the pharyngeal tubes.
Claim 5
Dependent Claim
210 words
In a binasal pharyngeal airway having a pair of pharyngeal tubes and means connecting said tubes to an anesthetic-line, the improvement wherein the connecting means comprises: a hollow swivel body so constructed as to permit two degress of freedom of movement between said anesthetic-line and said pharyngeal tubes, said swivel body having first, second and third openings providing passageways into the hollow interior thereof; a tube connector rotatably connected to said first opening to permit fluid flow through the connector into said hollow interior and means forming two hollow legs with an apex therebetween, said legs being so constructed as to permit attachment of said pharyngeal tubes thereto, with the apex pointing in the direction of said first opening; means for selectively closing said second opening and opening the same to permit insertion of a catheter or the like through said swivel body into one or the other of said pharyngeal tubes, said apex being so constructed and disposed as to act as a guide during the insertion of such catheter or the like; and an anesthetic-line connector rotatably connected to said third opening for connecting an anesthetic-line to the swivel body to permit fluid flow from the anesthetic-line through the swivel body and tube connector into the pharyngeal tubes.
Claim 6
Dependent Claim
29 words
A binasal pharyngeal airway as described in claim 3 wherein the closing means comprises a removable plug provided for the second opening and means for retaining the plug captive.
Claim 7
Dependent Claim
25 words
A binasal pharyngeal airway as described in claim 3 wherein the tube connector and the swivel body are composed of a polymer of an olefin.
Claim 8
Dependent Claim
21 words
A binasal pharyngeal airway as described in claim 5 wherein the tube connector and the swivel body are composed of polypropylene.
Claim 9
Dependent Claim
21 words
A binasal pharyngeal airway as described in claim 5 wherein the tube connector and the swiVel body are composed of polyethylene.
Claim 10
Dependent Claim
38 words
A binasal pharyngeal airway as described in claim 3 wherein the tube connector and the swivel body are composed of a substance providing natural lubrication at the mating openings and suitable for sterilizing by subjecting to sterilizing gas.
Claim 11
Dependent Claim
23 words
A binasal pharyngeal airway as described in claim 8 wherein the pharyngeal tubes are composed of a substance having properties of polyvinyl chloride.
Claim 12
Dependent Claim
27 words
A binasal pharyngeal airway as described in claim 3 wherein the hollow legs are externally barbed for securing the pharyngeal tube end fitting upon the hollow leg.
Claim 13
Dependent Claim
29 words
A binasal pharyngeal airway as described in claim 10 wherein each pharyngeal tube has its second end beveled at an acute angle to the tube with a blunt tip.
Claim 14
Dependent Claim
38 words
A binasal pharyngeal airway as described in claim 11 wherein the tube connector and the anesthetic-line connector are rotatably connected to the swivel body by means of a lip received in a groove in relatively rotatable snap-in relationship.
Claim 15
Dependent Claim
29 words
A binasal pharyngeal airway as described in claim 11 wherein the blunt tip of the tube is rounded with a radius of curvature no less than approximately 0.030 inch.
Claim 16
Dependent Claim
29 words
A binasal pharyngeal airway as described in claim 13 wherein the tube is formed with a substantially permanent set in the form substantially of an arc of a circle.
Claim 17
Dependent Claim
33 words
A binasal pharyngeal airway as described in claim 14 wherein the tube arc has a radius of curvature between approximately the length of the arc and one-half the length of the tube arc.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |