US5205281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral airway with oximetry means
Assignee: Individual
•
Filing: 1991-08-02
•
Granted: 1993-04-27
•
Expires: 2011-08-02
Abstract
Abstract The present invention discloses an oral airway for insertion within a surgical patient's mouth and over the patient's tongue for preventing blockage of the pharynx during surgical and like procedures. According to the present invention, the airway is provided with an arrangement for transmitting light through the patient's tongue from a point on the oral airway bearing a transmitting device to a point on the oral airway bearing a detecting device. The transmitting devices and detecting devices are positioned in a spaced-apart relation on the oral airway so that the light transmitted from the transmitting device passes through at least a portion of the patient's tongue before being received by the detecting device. Additionally, an operative connecting device is provided for connecting the transmitting device and detecting device with an oximeter for measuring saturation of the patient's blood as a function of the transmitted light received by the detecting device.
Inventors
- 👤 Dale C. Buchanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:43
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1455; A61B5/1459; A61B5/14551; A61B5/14552; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B5/682; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/049; A61M16/0493; A61M16/0495; A61M2230/00; A61M2230/20; A61M2230/205
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
147 words
An oral airway for insertion over a surgical patient's tongue, which both assists in patient breathing and provides for the measurement of oxygen saturation in the patient's blood, comprising: a) a main body configured to extend through the patient's mouth over the tongue to prevent blockage of the patient's pharnyx during surgery; b) means for transmitting light; c) means for detecting light transmitted by said transmitting means; d) said transmitting means and said detecting means being positioned on said main body in spaced relation to one another for passage of light through the patient's tongue when transmitted from said transmitting means to said detecting means during surgical use of the airway; and e) means for operatively connecting said transmitting means and said detecting means with an oximeter for measuring oxygen saturation in the patient's blood as a function of the transmitted light detected by said detecting means.
Claim 2
Dependent Claim
147 words
An oral airway for insertion over a surgical patient's tongue, which both assists in patient breathing and provides for the measurement of oxygen saturation in the patient's blood, comprising: a) a main body configured to extend through the patient's mouth over the tongue to prevent blockage of the patient's pharnyx during surgery; b) means for transmitting light; c) means for detecting light transmitted by said transmitting means; d) said transmitting means and said detecting means being positioned on said main body in spaced relation to one another for passage of light through the patient's tongue when transmitted from said transmitting means to said detecting means during surgical use of the airway; and e) means for operatively connecting said transmitting means and said detecting means with an oximeter for measuring oxygen saturation in the patient's blood as a function of the transmitted light detected by said detecting means.
Claim 3
Dependent Claim
22 words
The oral airway of claim 1 further characterized in that said transmitting means comprises a light emitting device affixed to the airway.
Claim 4
Dependent Claim
31 words
The oral airway of claim 2 further characterized in that said oximeter connecting means comprises electrical wiring means extending along the airway from said detecting means to said light emitting device.
Claim 5
Dependent Claim
16 words
The oral airway of claim 2 wherein said light emitting device comprises a light emitting diode.
Claim 6
Dependent Claim
17 words
The oral airway of claim I further characterized in that said detecting means comprises a photosensitive device.
Claim 7
Dependent Claim
59 words
The oral airway of claim 1 characterized further in that said transmitting means comprises an optical fiber having a light emitting terminus, said optical fiber extending from said light emitting terminus to a predetermined location on the oral airway, and a light emitting device operatively connected to said optical fiber for directing light to travel along said optical fiber.
Claim 8
Dependent Claim
16 words
The oral airway of claim 6 wherein said light emitting device comprises a light emitting diode.
References Cited (Backward Citations)
US4231364A
Cited
US4640293A
Cited
GB2126719A
Cited
US4564021A
Cited
US4651746A
Cited
US4676240A
Cited
US4850371A
Cited
US5005573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |