US6325803B1
Expired / Lapsed
US
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Method and apparatus for mandibular osteosynthesis
Assignee: Electro Biology Inc
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Filing: 1999-09-10
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Granted: 2001-12-04
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Expires: 2019-09-10
Abstract
Abstract A system for mandibular reconstruction generally includes an elongated locking plate having a plurality of internally threaded apertures and a plurality of fasteners. Each fastener includes a main body portion having an upper threaded shaft and a lower threaded shaft. The lower threaded shaft is adapted to engage the mandible. Each fastener further includes a removable head portion internally threaded for engaging the upper shaft portion and externally threaded for engaging a selected one of the internally threaded apertures of the locking plate. In the preferred embodiment, the thread leads of the head portion and lower shaft of the main body portion are identical. A method of mandibular osteosynthesis utilizes the system of osteosynthesis and generally comprises the steps of temporarily securing the elongated locking plate to the mandible with at least one fastener by engaging the threads of the lower portion with the mandible and threadably engaging the head with the locking plate, unthreading the head portion from the main body of the fastener to thereby allow displacement of the locking plate from the mandible without removing the fasteners from the mandible, performing a surgical procedure (e.g., removal of a cancerous growth), and re-securing the elongated plate to the fastener with the removable head portion.
Inventors
- 👤 Brian S. Schumacher
- 👤 Kevin T. Stone
- 👤 Jeffrey A. Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:34
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8033; A61B17/8047; A61B17/8061; A61B17/8071; A61B17/84; A61B17/86; A61B17/8605; A61B17/861; A61B17/8615; A61B17/88; A61B17/8875; A61B17/8877; A61B17/888; A61B17/8886; A61B17/8888; Y; Y10; Y10S; Y10S606/00; Y10S606/902; Y10S606/903; Y10S606/904
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
81 words
A system for osteosynthesis of a mandible, the system comprising: an elongated locking plate having a plurality of internally threaded apertures; an auxiliary reinforcement member extending from the elongated locking plate; a first fastener securing a first end of the auxiliary reinforcement member to the elongated locking plate; and a second fastener securing a second end of the auxiliary reinforcement member to the elongated locking plate; wherein the auxiliary reinforcement member includes an arcuate portion interconnecting the first and second ends.
Claim 2
Independent Claim
81 words
A system for osteosynthesis of a mandible, the system comprising: an elongated locking plate having a plurality of internally threaded apertures; an auxiliary reinforcement member extending from the elongated locking plate; a first fastener securing a first end of the auxiliary reinforcement member to the elongated locking plate; and a second fastener securing a second end of the auxiliary reinforcement member to the elongated locking plate; wherein the auxiliary reinforcement member includes an arcuate portion interconnecting the first and second ends.
Claim 3
Dependent Claim
27 words
The system for osteosynthesis of a mandible of claim 1 , wherein the first fastener threadably engages a first one of the plurality of internally threaded apertures.
Claim 4
Dependent Claim
69 words
The system for osteosynthesis of a mandible of claim 1 , wherein the second fastener has a main body portion and a removable head member, the main body portion having an externally threaded lower shaft portion and an upper shaft portion, the removable head member being externally threaded for engaging a second one of the plurality of internally threaded apertures, the head member and the first fastener being interchangeable.
Claim 5
Dependent Claim
40 words
The system for osteosynthesis of a mandible of claim 1 , wherein the auxiliary reinforcement member includes a plate attachment portion and a bone attachment portion, the bone attachment portion oriented parallel to and stepped from the plate attachment portion.
Claim 6
Dependent Claim
39 words
The system for osteosynthesis of a mandible of claim 4 , wherein the plate attachment portion and the bone attachment portion are interconnected by an intermediate portion oriented perpendicular to the bone attachment portion and the plate attachment portion.
Claim 7
Independent Claim
101 words
A system for osteosynthesis of a mandible, the system comprising: an elongated locking plate having a plurality of internally threaded apertures; an auxiliary reinforcement member extending from the elongated locking plate, the auxiliary reinforcement member including a plate attachment portion and a bone attachment portion, the bone attachment portion oriented parallel to and stepped from the plate attachment portion; and a first fastener securing the auxiliary reinforcement member to the elongated locking plate; wherein the plate attachment portion and the bone attachment portion are interconnected by an intermediate portion oriented perpendicular to the bone attachment portion and the plate attachment portion.
Claim 8
Independent Claim
101 words
A system for osteosynthesis of a mandible, the system comprising: an elongated locking plate having a plurality of internally threaded apertures; an auxiliary reinforcement member extending from the elongated locking plate, the auxiliary reinforcement member including a plate attachment portion and a bone attachment portion, the bone attachment portion oriented parallel to and stepped from the plate attachment portion; and a first fastener securing the auxiliary reinforcement member to the elongated locking plate; wherein the plate attachment portion and the bone attachment portion are interconnected by an intermediate portion oriented perpendicular to the bone attachment portion and the plate attachment portion.
Claim 9
Dependent Claim
27 words
The system for osteosynthesis of a mandible of claim 6 , wherein the first fastener threadably engages a first one of the plurality of internally threaded apertures.
Claim 10
Dependent Claim
44 words
The system for osteosynthesis of a mandible of claim 6 , wherein the auxiliary reinforcement member includes a first end attached to the elongated locking plate with the first fastener and a second end attached to the elongated locking plate with a second fastener.
Claim 11
Dependent Claim
37 words
The system for osteosynthesis of a mandible of claim 6 , wherein the auxiliary reinforcement member includes first and second ends attached to the elongated locking plate and an arcuate portion interconnecting the first and second ends.
Claim 12
Dependent Claim
82 words
The system for osteosynthesis of a mandible of claim 6 , further including a second fastener for attaching the elongated plate member to the bone, the second fastener having a main body portion and a removable head member, the main body portion having an externally threaded lower shaft portion and an upper shaft portion, the removable head member being externally threaded for engaging a second one of the plurality of internally threaded apertures, the head member and the first fastener being interchangeable.
Claim 13
Independent Claim
103 words
A method of surgically repairing a bone, the method including the steps of: providing an elongated locking plate including a plurality of apertures; providing an auxiliary reinforcement member; and securing the auxiliary reinforcement member to the elongated locking plate with a first fastener and a second fastener such that the auxiliary reinforcement member extends from the elongated locking plate, the first fastener threadabiy engaging a first aperture of the elongated locking plate, the second fastener including a removable head and upper shaft portion, the removable head threadably engaging a second aperture of the elongated locking plate and threadably engaging the upper shaft portion.
Claim 14
Independent Claim
103 words
A method of surgically repairing a bone, the method including the steps of: providing an elongated locking plate including a plurality of apertures; providing an auxiliary reinforcement member; and securing the auxiliary reinforcement member to the elongated locking plate with a first fastener and a second fastener such that the auxiliary reinforcement member extends from the elongated locking plate, the first fastener threadabiy engaging a first aperture of the elongated locking plate, the second fastener including a removable head and upper shaft portion, the removable head threadably engaging a second aperture of the elongated locking plate and threadably engaging the upper shaft portion.
Claim 15
Dependent Claim
24 words
The method of surgically repairing a bone of claim 11 , further comprising the step of removing the removable head from the upper shaft.
Claim 16
Independent Claim
128 words
A system for osteosynthesis of a mandible, the system comprising: an elongated locking plate having a plurality of internally threaded apertures; an auxiliary reinforcement member extending from the elongated locking plate; a first fastener securing the auxiliary reinforcement member to the elongated locking plate, the first fastener threadably engaging a first one of the plurality of internally threaded apertures; a second fastener for attaching the elongated plate member to the mandible, the second fastener having a main body portion and a removable head member, the main body portion having an externally threaded lower shaft portion and an upper shaft portion, the removable head member being externally threaded for engaging a second one of the plurality of internally threaded apertures, the head member and the first fastener being interchangeable.
Claim 17
Independent Claim
128 words
A system for osteosynthesis of a mandible, the system comprising: an elongated locking plate having a plurality of internally threaded apertures; an auxiliary reinforcement member extending from the elongated locking plate; a first fastener securing the auxiliary reinforcement member to the elongated locking plate, the first fastener threadably engaging a first one of the plurality of internally threaded apertures; a second fastener for attaching the elongated plate member to the mandible, the second fastener having a main body portion and a removable head member, the main body portion having an externally threaded lower shaft portion and an upper shaft portion, the removable head member being externally threaded for engaging a second one of the plurality of internally threaded apertures, the head member and the first fastener being interchangeable.
References Cited (Backward Citations)
US1105105A
Cited
US2489870A
Cited
US2494229A
Cited
US2631584A
Cited
DE867422C
Cited
US3488779A
Cited
US4219015A
Cited
US4484570A
Cited
US4429690A
Cited
US4903691A
Cited
US4708132A
Cited
US5413577A
Cited
US5372598A
Cited
US5151103A
Cited
US4973332A
Cited
US5108399A
Cited
US4959065A
Cited
US5108395A
Cited
US5147363A
Cited
US5180382A
Cited
US5303718A
Cited
US5129899A
Cited
US5403136A
Cited
US5269784A
Cited
US5358367A
Cited
US5601554A
Cited
US5722976A
Cited
US5505731A
Cited
US5653710A
Cited
US5591167A
Cited
US5601553A
Cited
US5474551A
Cited
US5569247A
Cited
US5520690A
Cited
US5607428A
Cited
US5676667A
Cited
US6007538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-12-03 | 2005-06-04 | 2005-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-12-03 | 2009-06-04 | 2009-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-12-03 | 2013-06-04 | 2013-12-04 | $7700.00 | Window Closed / Lapsed |