Patent US4213451A successfully refreshed from Google Patents.
US4213451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tongue blade for mouth gag for adults
Assignee: Individual
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Filing: 1978-08-21
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Granted: 1980-07-22
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Expires: 1998-08-21
Abstract
Abstract An improved tongue blade that may be used with frames of conventional design and forming part of a mouth gag, said blade having a handle portion that connects with a frame and a tongue-engaging portion that extends from said handle portion at an obtuse angle of between 100° and 120°, said blade providing an improved exposure of the tonsils for surgical removal. The improved exposure is uniquely attained in the lower pole for more complete removal of the tonsil, and easier access to bleeding vessels for quicker ligation of bleeders.
Inventors
- 👤 Rudolph E. Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:20
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
159 words
A series of tongue blades in combination with a frame, said tongue blades being formed in various sizes, each blade having a substantially straight handle portion adapted to be connected to said frame in order to form a mouth gag and a substantially straight elongated tongue-engaging portion connected at a first end to said handle portion and having an opposite distal end, said tongue engaging portion extending from said handle portion at an obtuse angle between 100° and 120°, said tongue-engaging portion having a curved tip that is formed with a radius of curvature less than one and one-half inches a distance greater than two inches from said handle portion whereby the handle portion and tongue-engaging portion of each tongue blade defines an unobstructed obtuse angular void therebetween extending from the handle portion a distance of at least two inches and a semi-circular opening at the distal end of said curved tip for guiding an endotracheal tube for anesthesia.
Claim 2
Dependent Claim
159 words
A series of tongue blades in combination with a frame, said tongue blades being formed in various sizes, each blade having a substantially straight handle portion adapted to be connected to said frame in order to form a mouth gag and a substantially straight elongated tongue-engaging portion connected at a first end to said handle portion and having an opposite distal end, said tongue engaging portion extending from said handle portion at an obtuse angle between 100° and 120°, said tongue-engaging portion having a curved tip that is formed with a radius of curvature less than one and one-half inches a distance greater than two inches from said handle portion whereby the handle portion and tongue-engaging portion of each tongue blade defines an unobstructed obtuse angular void therebetween extending from the handle portion a distance of at least two inches and a semi-circular opening at the distal end of said curved tip for guiding an endotracheal tube for anesthesia.
Claim 3
Dependent Claim
133 words
A mouth gag having a frame, a blade having a substantially straight handle portion that is connected to said frame and a substantially straight elongated tongue-engaging portion connected at a first end to said handle portion and having an opposite distal end, said tongue-engaging portion extending from said handle portion at an obtuse angle of between 100° and 120°, said tongue-engaging portion having at said distal end a curved tip with a semi-circular opening for guiding an endotracheal tube for anesthesia, said tongue--engaging portion being at least one and one-half inches in length, said curved tip having a radius of curvature less than one and one-half inches, said handle portion and tongue-engaging portion defining an unobstructed obtuse angular void therebetween that extends from the handle portion a distance of at least two inches.
Claim 4
Dependent Claim
133 words
A mouth gag having a frame, a blade having a substantially straight handle portion that is connected to said frame and a substantially straight elongated tongue-engaging portion connected at a first end to said handle portion and having an opposite distal end, said tongue-engaging portion extending from said handle portion at an obtuse angle of between 100° and 120°, said tongue-engaging portion having at said distal end a curved tip with a semi-circular opening for guiding an endotracheal tube for anesthesia, said tongue--engaging portion being at least one and one-half inches in length, said curved tip having a radius of curvature less than one and one-half inches, said handle portion and tongue-engaging portion defining an unobstructed obtuse angular void therebetween that extends from the handle portion a distance of at least two inches.
Claim 5
Dependent Claim
23 words
The tongue blade of claim 2, said tongue-engaging portion of said blade having an overall length of between two inches and five inches.
Claim 6
Dependent Claim
19 words
The tongue blade of claim 2, the tongue-engaging portion of said blade being less than four inches in length.
Claim 7
Dependent Claim
23 words
The tongue blade of claim 2, the curved tip of said blade being between three-fourths inch and one and one-half inches in length.
Claim 8
Dependent Claim
26 words
The tongue blade of claim 2, the curved tip of said blade having a radius of curvature equal to or greater than one-half inches in length.
References Cited (Backward Citations)
US252127A
Cited
US1193782A
Cited
US1319904A
Cited
US2690745A
Cited
US2756742A
Cited
US4024859A
Cited
US4064873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-22 | 1984-01-21 | 1984-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-22 | 1988-01-21 | 1988-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-22 | 1992-01-21 | 1992-07-22 | $7700.00 | Window Closed / Lapsed |