US4867147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral injury prevention appliance for comatose patients and the like
Assignee: Individual
•
Filing: 1988-05-17
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Granted: 1989-09-19
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Expires: 2008-05-17
Abstract
Abstract An oral appliance to prevent further oral injury to comatose patients and the like. This appliance is a flat body of substantially uniform thickness that defines a U-shape. This provides an intra-oral leg for insertion between the occlusal surfaces of the teeth on one side of the patient's mouth. The second leg is extra-oral i.e., for exterior the mouth, with the curved surface between the legs fitting into the corner of the patient's mouth. This construction permits insertion in either side of the mouth, or periodic switching sides to prevent excessive irritation. A tether or lanyard is fastened to the extra-oral leg by providing a perforation near the distal end thereof. In the preferred embodiment, the extra-oral leg is both wider and longer than the intra-oral leg to facilitate manipulation by attending personnel. This appliance does not require impressions or the like, nor does it require extra-sedation of the patient for installation or manipulation. Further, it permits regular oral hygiene and regular oral inspection.
Inventors
- 👤 E. Wayne Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
A; A61; A61F; A61F5/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
200 words
An oral injury prevention appliance for insertion in the mouth for use with comatose patients and the like, which comprises a U-shaped resilient body member of substantially uniform thickness and rounded edges, which body member defines: a first leg as an intra-oral portion for placement between the occlusal surfaces on one side of said patient's mouth, said intra-oral portion having a length sufficient to extend proximate a rear of said occlusal surfaces, and a width in excess of the width of said occlusal surfaces to exclude soft tissue from said occlusal surfaces; a second leg as an extra-oral portion to contact the exterior of said patient's cheek spaced from said first leg a distance to accommodate the thickness of said cheek, said extra-oral portion provided with a performation proximate a distal end thereof to receive a surgical tether for use to attach said appliance to said patient, said extra-oral portion having a length and a width greater than the length and width of said intra-oral portion; and a cured junction portion connected between said first leg and said second leg to rest against a corner of said patient's mouth to limit movement of said first leg into said patient's mouth.
Claim 2
Dependent Claim
200 words
An oral injury prevention appliance for insertion in the mouth for use with comatose patients and the like, which comprises a U-shaped resilient body member of substantially uniform thickness and rounded edges, which body member defines: a first leg as an intra-oral portion for placement between the occlusal surfaces on one side of said patient's mouth, said intra-oral portion having a length sufficient to extend proximate a rear of said occlusal surfaces, and a width in excess of the width of said occlusal surfaces to exclude soft tissue from said occlusal surfaces; a second leg as an extra-oral portion to contact the exterior of said patient's cheek spaced from said first leg a distance to accommodate the thickness of said cheek, said extra-oral portion provided with a performation proximate a distal end thereof to receive a surgical tether for use to attach said appliance to said patient, said extra-oral portion having a length and a width greater than the length and width of said intra-oral portion; and a cured junction portion connected between said first leg and said second leg to rest against a corner of said patient's mouth to limit movement of said first leg into said patient's mouth.
Claim 3
Dependent Claim
63 words
The appliance of claim 1 further comprising a tab member extending from said body member proximate said junction portion between said first leg and said second leg, said body member being provided with a second perforation through a central portion of said tab member, and further comprises a second tether member passing through said second perforation to attach said appliance to said patient.
Claim 4
Dependent Claim
247 words
An oral appliance for insertion in the mouth for use with comatose patients and the like to prevent self-inflicted trauma to the soft tissue of the oral cavity of the patient, which comprises a U-shaped resilient body member of substantially uniform thickness and rounded edges, which body member defines: a first leg as an intra-oral portion for placement between occlusal surfaces on one side of said patient's mouth, said intra-oral portion having a length sufficient to extend proximate a rear of said occlusal surfaces and a width in excess of the width of said occlusal surfaces to exclude soft tissue from said occlusal surfaces; a second leg as an extra-oral portion spaced from said intra-oral portion a substantially uniform distance to accommodate the thickness of a cheek of said patient, said extra-oral portion having a length and a width greater than the length and width of said intra-oral portion so as to contact the exterior of said cheek of said patient to prevent rotation of said appliance in said patient's mouth and provide for grasp of said appliance during insertion and removal from said patient's mouth, said extra-oral portion being provided with a perforation proximate a distal end thereof to receive a surgical tether for use to attach said appliance to said patent; and a curved junction portion connected between said first leg and said second leg to rest against a corner of said patient's mouth to limit movement of said first leg into said patient's mouth.
Claim 5
Dependent Claim
247 words
An oral appliance for insertion in the mouth for use with comatose patients and the like to prevent self-inflicted trauma to the soft tissue of the oral cavity of the patient, which comprises a U-shaped resilient body member of substantially uniform thickness and rounded edges, which body member defines: a first leg as an intra-oral portion for placement between occlusal surfaces on one side of said patient's mouth, said intra-oral portion having a length sufficient to extend proximate a rear of said occlusal surfaces and a width in excess of the width of said occlusal surfaces to exclude soft tissue from said occlusal surfaces; a second leg as an extra-oral portion spaced from said intra-oral portion a substantially uniform distance to accommodate the thickness of a cheek of said patient, said extra-oral portion having a length and a width greater than the length and width of said intra-oral portion so as to contact the exterior of said cheek of said patient to prevent rotation of said appliance in said patient's mouth and provide for grasp of said appliance during insertion and removal from said patient's mouth, said extra-oral portion being provided with a perforation proximate a distal end thereof to receive a surgical tether for use to attach said appliance to said patent; and a curved junction portion connected between said first leg and said second leg to rest against a corner of said patient's mouth to limit movement of said first leg into said patient's mouth.
References Cited (Backward Citations)
US1302004A
Cited
US1509377A
Cited
US1466559A
Cited
US2694397A
Cited
US3224441A
Cited
US3307539A
Cited
US4055895A
Cited
US4185817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |