US5261907A
Expired / Lapsed
US
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Interconnecting device able to lock spinal osteosynthesis fasteners
Assignee: Stryker Corp
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Filing: 1992-05-15
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Granted: 1993-11-16
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Expires: 2012-05-15
Abstract
Abstract The invention concerns an interconnecting device able to lock two spinal osteosynthesis fasteners comprising an osseous fixation section formed by a screw, a bent-back plate or similar device and a body for fixing an integralization rod formed by a diapason head receiving both said rod and a locking screw, said interconnecting device being constituted by two annular elements able to be each externally attached onto one of the diapason heads, each annular element comprising an external locking rod able to slide into the clamping collar, the two clamping collars of the device being screwed down by a common screw traversing said collars.
Inventors
- 👤 Jean L. Vignaud
- 👤 Gilles Missenard
- 👤 Philippe Lapresle
- 👤 Jean F. Sacriste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7049; A61B17/7052; A61B17/7001; A61B17/7032
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
135 words
An interconnecting device for rigidly connecting together with a pair of spaced-apart fasteners, each fastener having an osseous fixation section formed by an attachment member, a diapason head receiving an integralization rod and a clamping screw engaged in said diapason head for securing the attachment member to the rod, said device comprising: first and second annular elements, each of said elements having an internal configuration conforming to an external configuration of the head of each fastener, respectively; first and second interlocking rods rigidly connected to said first and second annular elements, respectively; and extending outwardly therefrom; first and second clamping members slidably receiving terminal regions of said first and second interlocking rods, respectively; and a single screw means, extending through said first and second clamping members, for simultaneously clamping said members to said interlocking rods.
Claim 2
Dependent Claim
135 words
An interconnecting device for rigidly connecting together with a pair of spaced-apart fasteners, each fastener having an osseous fixation section formed by an attachment member, a diapason head receiving an integralization rod and a clamping screw engaged in said diapason head for securing the attachment member to the rod, said device comprising: first and second annular elements, each of said elements having an internal configuration conforming to an external configuration of the head of each fastener, respectively; first and second interlocking rods rigidly connected to said first and second annular elements, respectively; and extending outwardly therefrom; first and second clamping members slidably receiving terminal regions of said first and second interlocking rods, respectively; and a single screw means, extending through said first and second clamping members, for simultaneously clamping said members to said interlocking rods.
Claim 3
Dependent Claim
47 words
An interconnecting device according to claim 1 wherein said first and second clamping members are at least partially superimposed, and are relatively rotatable about a longitudinal axis of said single screw means enabling said interlocking rods to move in two parallel planes perpendicular to said longitudinal axis.
Claim 4
Dependent Claim
50 words
An interconnecting device according to claim 1 wherein said first and second clamping members are at least partially superimposed, and are relatively rotatable in a contact plane on each other, said contact plane forming an angle with a longitudinal axis of said single screw means not equal to 90 degrees.
Claim 5
Dependent Claim
23 words
An interconnecting device according to claim 1 wherein each of said annular elements comprises a cylindrical internal face ending in a chambered edge.
Claim 6
Dependent Claim
24 words
An interconnecting device according to claim 1 wherein each interlocking rod has a longitudinal axis passing through a center of the respective annular element.
Claim 7
Dependent Claim
45 words
An interconnecting device according to claim 1 wherein said first and second clamping members are at least partially superimposed, and are relatively rotatable in a contact plane on each other, said contact plane forming an angle with a longitudinal axis of said single screw means.
Claim 8
Dependent Claim
27 words
An interlocking device according to claim 1 wherein said first and second interlocking rods are rigid and are integral with said first and second annular elements, respectively.
Claim 9
Dependent Claim
24 words
An interlocking device according to claim 7 wherein said single screw means releasably clamps said first clamping member relative to said second clamping member.
Claim 10
Dependent Claim
143 words
A spinal osteosynthesis device, comprising; at least one integralization rod; first and second spaced-apart spinal fasteners, each of said spinal fasteners having an osseous fixation section formed by an attachment member, a diapason head receiving said at least one integralization rod and a clamping screw engaged in said diapason head for securing said integralization rod in said diapason head; first and second annular elements, each of said annular elements having an internal configuration conforming to an external configuration of the head of each fastener, respectively; first and second interlocking rods rigidly connected to said first and second annular elements, respectively, and extending outwardly therefrom; first and second clamping members slidably receiving terminal regions of said first and second interlocking rods, respectively; and a single screw means, extending through said first and second clamping members, for simultaneously clamping said members to said interlocking rods.
Claim 11
Dependent Claim
143 words
A spinal osteosynthesis device, comprising; at least one integralization rod; first and second spaced-apart spinal fasteners, each of said spinal fasteners having an osseous fixation section formed by an attachment member, a diapason head receiving said at least one integralization rod and a clamping screw engaged in said diapason head for securing said integralization rod in said diapason head; first and second annular elements, each of said annular elements having an internal configuration conforming to an external configuration of the head of each fastener, respectively; first and second interlocking rods rigidly connected to said first and second annular elements, respectively, and extending outwardly therefrom; first and second clamping members slidably receiving terminal regions of said first and second interlocking rods, respectively; and a single screw means, extending through said first and second clamping members, for simultaneously clamping said members to said interlocking rods.
Claim 12
Dependent Claim
48 words
A spinal osteosynthesis device according to claim 9 wherein said first and second clamping members are at least partially superimposed, and are relatively rotatable about a longitudinal axis of said single screw means enabling said interlocking rods to rotate in two parallel planes perpendicular to said longitudinal axis.
Claim 13
Dependent Claim
51 words
A spinal osteosynthesis device according to claim 9 wherein said first and second clamping members are at least partially superimposed, and are relatively rotatable in a contact plane on each other, said contact plane forming an angle with a longitudinal axis of said single screw means not equal to 90 degrees.
Claim 14
Dependent Claim
24 words
A spinal osteosynthesis device according to claim 9 wherein each of said annular elements comprises a cylindrical internal face ending in a chambered edge.
Claim 15
Dependent Claim
25 words
A spinal osteosynthesis device according to claim 9 wherein each interlocking rod has a longitudinal axis extending through a center of the respective annular element.
Claim 16
Dependent Claim
46 words
A spinal osteosynthesis device according to claim 9 wherein said first and second clamping members are at least partially superimposed, and are relatively rotatable in a contact plane on each other, said contact plane forming an angle with a longitudinal axis of said single screw means.
Claim 17
Dependent Claim
25 words
A spinal osteosynthesis device according to claim 14 wherein said single screw means releasably clamps said first clamping member relative to said second clamping member.
Claim 18
Dependent Claim
25 words
A spinal osteosynthesis device according to claim 9 wherein said first and second interlocking rods are integral with said first and second annular elements, respectively.
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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) | 1996-11-15 | 1997-05-17 | 1997-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-15 | 2001-05-17 | 2001-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-15 | 2005-05-17 | 2005-11-16 | $7700.00 | Window Closed / Lapsed |