US5514138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector having a stop member
Assignee: Howmedica Osteonics Corp
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Filing: 1994-02-04
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Granted: 1996-05-07
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Expires: 2014-02-04
Abstract
Abstract An improved device for repairing fractured bones is provided, the device comprising a specially designed connector, which is especially useful in combination with a plate having a tab cut out, a stop, a flat portion and a bore portion and with a compression screw and a lag screw.
Inventors
- 👤 Thomas F. McCarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:08
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/74; A61B17/742; A61B17/746
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
270 words
A device for lagging two bone segments comprising: a lag screw having a first end for engaging one of said bone segments and a second end having a threaded bore; a bone plate for engaging the other of said bone segments and having a bore formed therein having first and second ends for slidably receiving said lag screw, said bore having a tab cutout formed on said bore said tab cutout having a stop face intermediate said ends; a threaded element insertable within said bore plate from one end of the bore for engaging the threaded bore of said lag screw, said threaded element having a free end and a compression screw insert having an inward face, an outward face and a radially extending tab portion, said tab portion having an axially inwardly facing stop surface for engaging the stop face of said tab cutout of said bone plate, said radially extending tab portion engaging said stop face of the tab cutout of said bone plate when said tab portion is fully advanced along said tab cutout, said stop face of the tab cutout of said bone plate having a length such that upon engagement of said radially extending tab portion with said stop face of said tab cutout and the engagement of said outward face of said compression screw insert with the free end of said threaded element, the inward face of said compression screw insert is spaced from said second end of said lag screw to permit longitudinal outward movement from said stop face of said tab cutout of said lag screw upon rotation of said threaded element.
Claim 2
Independent Claim
270 words
A device for lagging two bone segments comprising: a lag screw having a first end for engaging one of said bone segments and a second end having a threaded bore; a bone plate for engaging the other of said bone segments and having a bore formed therein having first and second ends for slidably receiving said lag screw, said bore having a tab cutout formed on said bore said tab cutout having a stop face intermediate said ends; a threaded element insertable within said bore plate from one end of the bore for engaging the threaded bore of said lag screw, said threaded element having a free end and a compression screw insert having an inward face, an outward face and a radially extending tab portion, said tab portion having an axially inwardly facing stop surface for engaging the stop face of said tab cutout of said bone plate, said radially extending tab portion engaging said stop face of the tab cutout of said bone plate when said tab portion is fully advanced along said tab cutout, said stop face of the tab cutout of said bone plate having a length such that upon engagement of said radially extending tab portion with said stop face of said tab cutout and the engagement of said outward face of said compression screw insert with the free end of said threaded element, the inward face of said compression screw insert is spaced from said second end of said lag screw to permit longitudinal outward movement from said stop face of said tab cutout of said lag screw upon rotation of said threaded element.
Claim 3
Dependent Claim
35 words
A device for lagging two bone segments according to claim 1 wherein said plate further comprises a substantially flat plate portion, said bore being integral with and angled with respect to said flat plate portion.
Claim 4
Dependent Claim
30 words
A device for lagging two bone segments according to claim 1, wherein said compression screw insert has a threaded internal bore which mates with the threads on said threaded element.
Claim 5
Dependent Claim
19 words
A device for lagging two bone segments according to claim 1, wherein said bone plate is a supracondylar plate.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-07 | 1999-11-06 | 2000-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-07 | 2003-11-06 | 2004-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-07 | 2007-11-06 | 2008-05-07 | $7700.00 | Window Closed / Lapsed |