Patent US3568680A successfully refreshed from Google Patents.
US3568680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oropharyngeal airway
Assignee: Individual
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Filing: 1968-10-04
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Granted: 1971-03-09
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Expires: 1988-10-04
Abstract
Abstract An oropharyngeal airway for use during surgery comprises a contoured portion in the shape of the pharyngeal contour, and includes a pair of passageways formed by a pair of curved substantially planar members connected in spaced substantially parallel relation by an internal generally central web portion. The planar members are each provided with a plurality of spaced holes distributed along their contoured portions and providing communication between the outer surfaces of the airway and the passageways to aid in preventing clogging or blockage of the airway due to the accumulation of fluids in the mouth and pharynx.
Inventors
- 👤 Victor H Raimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:59
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/049; A61M16/0493; A61M16/0495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
In an oropharyngeal airway for surgical use having a contoured portion in the shape of the pharyngeal contour, said contour portion including a pair of longitudinal passageways formed by a pair of curved substantially planar members connected in spaced substantially parallel relation by an internal generally central web portion and having at least one aperture adjacent the inner end of the airway to provide communication with the patient''s pharynx, the improvement which comprises: a plurality of apertures in at least one of said planar members, said apertures being distributed in spaced relation along substantially the entire length of the contoured portion thereof, said apertures providing communication between the outer surfaces of the airway and said longitudinal passageways to aid in preventing clogging of the airway and suffocation of a patient in use due to the accumulation of fluids in the patient''s mouth and pharynx subsequent to surgery.
Claim 2
Dependent Claim
147 words
In an oropharyngeal airway for surgical use having a contoured portion in the shape of the pharyngeal contour, said contour portion including a pair of longitudinal passageways formed by a pair of curved substantially planar members connected in spaced substantially parallel relation by an internal generally central web portion and having at least one aperture adjacent the inner end of the airway to provide communication with the patient''s pharynx, the improvement which comprises: a plurality of apertures in at least one of said planar members, said apertures being distributed in spaced relation along substantially the entire length of the contoured portion thereof, said apertures providing communication between the outer surfaces of the airway and said longitudinal passageways to aid in preventing clogging of the airway and suffocation of a patient in use due to the accumulation of fluids in the patient''s mouth and pharynx subsequent to surgery.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |