US6090110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bracing vertebrae
Assignee: Stryker Trauma GmbH
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Filing: 1997-04-14
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Granted: 2000-07-18
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Expires: 2017-04-14
Abstract
Abstract An apparatus for bracing a plurality of vertebrae of the human spine has at least two pedicle screws, each having an annular head with an opening therewithin and including a slot therewithin. Each slot extends into the corresponding opening and includes internal threaded portions. A securing screw to be screwed in each slot is provided. A relatively stiff threaded rod is also provided and is to be inserted into the opening in the head of each of the pedicle screws and to be secured by the securing screws. Adjusting nuts are screwed on the rod and at least one cooperates with each head.
Inventors
- 👤 Peter Metz-Stavenhagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7001; A61B17/7035; A61B17/7037; A61B17/7002; A61B17/7004; A61B17/7008; A61B17/7032; A61B17/7038
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
99 words
An apparatus for bracing a plurality of vertebrae, the apparatus comprising at least two pedicle screw assemblies having an integral upper end terminating in an elongated segment having at least two parallel walls facing one another with an opening therebetween, the opening defined at least in part by flat inner surfaces of the parallel walls, a plate shaped member having a first hole for receiving a shaft of the pedicle screw and a second hole for receiving a spongiose screw and a threaded rod extending between said pedicle screws including a nut for making contact with said pedicle screws.
Claim 2
Independent Claim
99 words
An apparatus for bracing a plurality of vertebrae, the apparatus comprising at least two pedicle screw assemblies having an integral upper end terminating in an elongated segment having at least two parallel walls facing one another with an opening therebetween, the opening defined at least in part by flat inner surfaces of the parallel walls, a plate shaped member having a first hole for receiving a shaft of the pedicle screw and a second hole for receiving a spongiose screw and a threaded rod extending between said pedicle screws including a nut for making contact with said pedicle screws.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein the at least two pedicle screw assemblies further contain a threaded slot at the top of the upper end.
Claim 4
Dependent Claim
12 words
The apparatus of claim 2 wherein the threaded slot contains internal threads.
Claim 5
Dependent Claim
21 words
The apparatus of claim 3 wherein the at least two pedicle screw assemblies have a securing screw screwed into the slot.
Claim 6
Dependent Claim
35 words
The apparatus of claim 1 wherein the at least two parallel walls are congruent in length and the height of the at least two parallel walls is greater than the width of the elongated segment.
Claim 7
Independent Claim
116 words
An apparatus for bracing a plurality of vertebrae, the apparatus comprising: (a) at least two pedicle screw assemblies having an integral upper end terminating in an elongated segment having at least two parallel walls facing one another with an opening therebetween, the opening defined at least in part by flat inner surfaces of the parallel walls; (b) a rod inserted into and between the openings of the pedicle screw assemblies; (c) a nut disposed about the rod and making contact with at least one of the pedicle screw assemblies; and (d) a plate shaped member having a first hole for receiving a shaft of the pedicle screw and a second hole for receiving a spongiose screw.
Claim 8
Independent Claim
116 words
An apparatus for bracing a plurality of vertebrae, the apparatus comprising: (a) at least two pedicle screw assemblies having an integral upper end terminating in an elongated segment having at least two parallel walls facing one another with an opening therebetween, the opening defined at least in part by flat inner surfaces of the parallel walls; (b) a rod inserted into and between the openings of the pedicle screw assemblies; (c) a nut disposed about the rod and making contact with at least one of the pedicle screw assemblies; and (d) a plate shaped member having a first hole for receiving a shaft of the pedicle screw and a second hole for receiving a spongiose screw.
Claim 9
Dependent Claim
25 words
The apparatus of claim 6 wherein the at least two pedicle screw assemblies further contain a threaded slot at the top of the upper end.
Claim 10
Dependent Claim
12 words
The apparatus of claim 7 wherein the threaded slot contains internal threads.
Claim 11
Dependent Claim
21 words
The apparatus of claim 8 wherein the at least two pedicle screw assemblies have a securing screw screwed into the slot.
Claim 12
Dependent Claim
35 words
The apparatus of claim 6 wherein the at least two parallel walls are congruent in length and the height of the at least two parallel walls is greater than the width of the elongated segment.
Claim 13
Independent Claim
111 words
An apparatus for bracing a plurality of vertebrae, the apparatus comprising: (a) at least two pedicle screw assemblies having an integral upper end terminating in an elongated segment having at least two parallel walls facing one another with an opening therebetween, the opening defined at least in part by flat inner surfaces of the parallel walls; (b) a substantially flat reinforcing member disposed about the pedicle screw and having a hole adapted to receive a spongiose screw; (c) a rod inserted into and between the openings of the pedicle screw assemblies; and (d) a nut disposed about the rod and making contact with at least one of the pedicle screw assemblies.
Claim 14
Independent Claim
111 words
An apparatus for bracing a plurality of vertebrae, the apparatus comprising: (a) at least two pedicle screw assemblies having an integral upper end terminating in an elongated segment having at least two parallel walls facing one another with an opening therebetween, the opening defined at least in part by flat inner surfaces of the parallel walls; (b) a substantially flat reinforcing member disposed about the pedicle screw and having a hole adapted to receive a spongiose screw; (c) a rod inserted into and between the openings of the pedicle screw assemblies; and (d) a nut disposed about the rod and making contact with at least one of the pedicle screw assemblies.
Claim 15
Dependent Claim
20 words
The apparatus of claim 11 wherein the rod is threaded and has a diameter of between 6 and 9 mm.
Claim 16
Dependent Claim
18 words
The apparatus of claim 12 wherein the threaded rod has a diameter of between 7 and 8 mm.
Claim 17
Dependent Claim
35 words
The apparatus of claim 11 wherein the at least two parallel walls are congruent in length and the height of the at least two parallel walls is greater than the width of the elongated segment.
Claim 18
Dependent Claim
25 words
The apparatus of claim 11 wherein the at least two pedicle screw assemblies further contain a threaded slot at the top of the upper end.
Claim 19
Dependent Claim
12 words
The apparatus of claim 15 wherein the threaded slot contains internal threads.
Claim 20
Dependent Claim
21 words
The apparatus of claim 16 wherein the at least two pedicle screw assemblies have a securing screw screwed into the slot.
Claim 21
Dependent Claim
18 words
The apparatus of claim 17 wherein the nut has a recess provided on at least one front face.
Claim 22
Dependent Claim
24 words
The apparatus of claim 11 wherein the at least two pedicle screw assemblies include a solid ball disposed partially within the two parallel walls.
Claim 23
Dependent Claim
23 words
The apparatus of claim 11 wherein said reinforcing member includes a blade integrally formed on an end thereof for insertion into the vertebra.
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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) | 2003-07-18 | 2004-01-17 | 2004-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-18 | 2008-01-17 | 2008-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-18 | 2012-01-17 | 2012-07-18 | $7700.00 | Window Closed / Lapsed |