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US4726808A Expired / Lapsed US ⏱️ 0.0 years remaining

Mandibular prosthesis

Assignee: Individual
•
Filing: 1986-06-30
•
Granted: 1988-02-23
•
Expires: 2006-06-30
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Abstract

Abstract A mandibular prosthesis includes a pair of strips joined at one end and spaced apart elsewhere for placement on opposite sides of a mandibular stump. The strips each have alternating threaded and non-threaded holes that are aligned with respective non-threaded and threaded holes in the other strip. Consequently, screws can be applied from either side and the prosthesis can be implanted interchangeably on either side of the mandible. Extending from the joined end of the strips is a mandibular replacement which may be an artificial condyle, a band for replacing the main body of the mandible, or a band carrying additional attachment strips or a ramus and condyle replacement.

Inventors

  • 👤 Thomas A. Collins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 15:40
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/2803; A61F2/30; A61F2/30988; A61F2/3099; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8061; A61B17/8071

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 153 words
A mandibular prosthesis comprising: a pair of strips joined at one end and spaced apart away from said one end for placement on opposite side of a mandibular stump located adjacent a damaged portion of the mandible; a mandibular replacement extending from said one end of the strips for replacing the damaged portion of the mandible; said mandibular replacement having an artificial condyle; a plurality of openings in each strip aligned with openings in the other strip, at least some of said openings being internally threaded; and a plurality of externally threaded fasteners for extension between said trips and through the stump to attach said mandibular replacement in a position to replace the damaged portion of the mandible, each fastener having a size and length to pass through an aligned pair of openings and thread into one of the internally threaded openings to maintain said strips against the opposite sides of the stump.
Claim 2
Dependent Claim 153 words
A mandibular prosthesis comprising: a pair of strips joined at one end and spaced apart away from said one end for placement on opposite side of a mandibular stump located adjacent a damaged portion of the mandible; a mandibular replacement extending from said one end of the strips for replacing the damaged portion of the mandible; said mandibular replacement having an artificial condyle; a plurality of openings in each strip aligned with openings in the other strip, at least some of said openings being internally threaded; and a plurality of externally threaded fasteners for extension between said trips and through the stump to attach said mandibular replacement in a position to replace the damaged portion of the mandible, each fastener having a size and length to pass through an aligned pair of openings and thread into one of the internally threaded openings to maintain said strips against the opposite sides of the stump.
Claim 3
Dependent Claim 30 words
The invention of claim 1, wherein said mandibular replacement comprises a metal band adapted to be bent to conform generally in curvature to the curved main body of the mandible.
Claim 4
Dependent Claim 119 words
The invention of claim 2, including: opposite ends of said band, said strips being connected with one end of the band; a second pair of strips on the other end of the band, said strips in the second pair being joined at one end and being spaced apart away from said one end for placement on opposite sides of a second mandible stump spaced from the first mentioned stump; and a plurality of openings in each strip in the second pair aligned with openings in the other strip, at least some of the openings being internally threaded to receive the threaded fasteners whereby to attach the strips in said second pair on opposite sides of the second mandible stump.
Claim 5
Dependent Claim 21 words
The invention of claim 3, wherein the strips in said second pair are curved for application to the second mandible stump.
Claim 6
Dependent Claim 14 words
The invention of claim 4, including a plurality of fastener openings in said band.
Claim 7
Dependent Claim 85 words
The invention of claim 1, wherein: said openings in each strip are arranged in a row extending lengthwise on the strip; each row of openings includes threaded and non-threaded openings arranged in an alternating pattern; each threaded opening in one strip is aligned with a non-threaded opening in the other strip; and each non-threaded opening in said one strip is aligned with a threaded opening in the other strip, whereby the fasteners can be applied with either strip facing outwardly away from the mandibular stump.
Claim 8
Dependent Claim 33 words
The invention of claim 2, including a plurality of creases spaced along the length of said band to provide weakened areas along which the band may be broken for shortening of the band.
Claim 9
Dependent Claim 46 words
The invention of claim 7, including a plurality of creases spaced along the length of each strip, said creases on each strip being aligned with the creases on the other strip to provide weakened areas along which each strip may be broken to shorten the strips.
Claim 10
Dependent Claim 46 words
The invention of claim 1, including a plurality of creases spaced along the length of each strip, said creases on each strip being aligned with the creases on the other strip to provide weakened areas along which each strip may be broken to shorten the strips.
Claim 11
Dependent Claim 198 words
A mandibular prosthesis comprising: a bifurcated body having first and second strips joined at one end and spaced apart away from said one end for placement on opposite sides of a mandibular stump located adjacent a damaged portion of the mandible which is to be replaced by the prosthesis, said body further having a mandibular replacement extending from said one end and adapted to replace the damaged portion of the mandible; said mandibular replacement having an artificial condyle; a row of openings in each strip including alternating threaded and non-threaded openings, each threaded opening in the first strip being aligned with a non-threaded opening in the second strip and each non-threaded opening in the first strip being aligned with a threaded opening in the second strip; and a plurality of threaded fasteners each adapted to extend through a non-threaded opening and the mandibular stump and to thread into a threaded opening, whereby the fasteners can be applied from either the side of the body which presents the first strip or the side of the body which presents the second strip to attach the body to the stump with said strips maintained against the opposite sides of the stump.
Claim 12
Dependent Claim 198 words
A mandibular prosthesis comprising: a bifurcated body having first and second strips joined at one end and spaced apart away from said one end for placement on opposite sides of a mandibular stump located adjacent a damaged portion of the mandible which is to be replaced by the prosthesis, said body further having a mandibular replacement extending from said one end and adapted to replace the damaged portion of the mandible; said mandibular replacement having an artificial condyle; a row of openings in each strip including alternating threaded and non-threaded openings, each threaded opening in the first strip being aligned with a non-threaded opening in the second strip and each non-threaded opening in the first strip being aligned with a threaded opening in the second strip; and a plurality of threaded fasteners each adapted to extend through a non-threaded opening and the mandibular stump and to thread into a threaded opening, whereby the fasteners can be applied from either the side of the body which presents the first strip or the side of the body which presents the second strip to attach the body to the stump with said strips maintained against the opposite sides of the stump.
Claim 13
Dependent Claim 30 words
The invention of claim 10, wherein said mandibular replacement comprises a metal band adapted to be bent to conform generally in curvature to the curved main body of the mandible.
Claim 14
Dependent Claim 119 words
The invention of claim 11, including: opposite ends of said band, said strips being connected with one end of the band; a second pair of strips on the other end of the band, said strips in the second pair being joined at one end and being spaced apart away from said one end for placement on opposite sides of a second mandible stump spaced from the first mentioned stump; and a plurality of openings in each strip in the second pair aligned with openings in the other strip, at least some of the openings being internally threaded to receive the threaded fasteners whereby to attach the strips in said second pair on opposite sides of the second mandible stump.
Claim 15
Dependent Claim 46 words
The invention of claim 10, including a plurality of creases spaced along the length of each strip, said creases on each strip being aligned with the creases on the other strip to provide weakened areas along which each strip may be broken to shorten the strips.

References Cited (Backward Citations)

US3720959A Cited
US3900025A Cited
USD288236S Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-02-22 1991-08-24 1992-02-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-02-22 1995-08-24 1996-02-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-02-22 1999-08-24 2000-02-23 $7700.00 Window Closed / Lapsed

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