§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US20050010215A1 Expired / Lapsed US ⏱️ 0.0 years remaining

Plate for osteosynthesis device and preassembling method

Assignee: LDR Medical SAS
•
Filing: 2002-10-18
•
Granted: —
•
Expires: 2022-10-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention relates to an osteosynthesis device, particularly for spinal support or correction, enabling easier and compact implantation, that can be particularly used in the case of implantation via the anterior approach, and a preassembly method for such a device. Said device comprises implants screwed into two vertebrae ( 0 ) and a plate ( 2 ) used to hold and displace the spine. Said plate ( 2 ) comprises on at least one of its ends at least one longitudinally elongated opening, said opening having firstly at least one part opening onto an edge of the plate, or one part of a sufficiently large size (s 210 b ) to be able to be inserted without disassembly in the fixation means of an implant ( 1 ) already screwed into the spine when said fixation means are already assembled.

Inventors

  • 👤 Joel Delecrin
  • 👤 Jerome Allain
  • 👤 Patrick Tropiano
  • 👤 Serge Ganglof
  • 👤 Remi Poncer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:46
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7001; A61B17/7002; A61B17/7004; A61B17/7007; A61B17/701; A61B17/7011; A61B17/7035; A61B17/7037; A61B17/7041; A61B17/7074; A61B17/7076; A61B17/7082; A61B17/84; A61B17/86; A61B17/864; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826

Claims Analysis

Total Claims: 20
Claim 1
Independent Claim 266 words
1 . Osteosynthesis device comprising a plurality of implants that are adapted to be joined to one or more vertebrae whereby being adapted to provide a rigid joint between said vertebrae and at least one support element comprising at least one plate or bar, and adapted to hold or displace a spine, wherein said plate is joined to at least two of said implants by an attachment structure; wherein the plate has an elongated shape and comprises on at least one of its ends at least one longitudinally elongated opening, said opening having, firstly, at least one opening extending to an edge of the plate, or one part of a sufficiently large size to be able to be inserted, without disassembly, in the attachment structure of an implant that has previously been attached to a vertebrae of the spine when said attachment structures are already assembled, and, secondly, a part of a substantially constant width that is able to slide longitudinally in the attachment structure of said implant after having been inserted and of being fixed thereon; wherein such a plate is adapted to be assembled at one end to first implant that has been attached to a vertebrae, and is adapted to then be caused to slide in relation to the attachment structure of said first implant so as to enable the other end of said plate to be inserted in a second implant that has previously been joined to a vertebrae, and then is adapted to be slid again in order to bring both ends of said plate into attachment to said attachment structures.
Claim 2
Dependent Claim 266 words
1 . Osteosynthesis device comprising a plurality of implants that are adapted to be joined to one or more vertebrae whereby being adapted to provide a rigid joint between said vertebrae and at least one support element comprising at least one plate or bar, and adapted to hold or displace a spine, wherein said plate is joined to at least two of said implants by an attachment structure; wherein the plate has an elongated shape and comprises on at least one of its ends at least one longitudinally elongated opening, said opening having, firstly, at least one opening extending to an edge of the plate, or one part of a sufficiently large size to be able to be inserted, without disassembly, in the attachment structure of an implant that has previously been attached to a vertebrae of the spine when said attachment structures are already assembled, and, secondly, a part of a substantially constant width that is able to slide longitudinally in the attachment structure of said implant after having been inserted and of being fixed thereon; wherein such a plate is adapted to be assembled at one end to first implant that has been attached to a vertebrae, and is adapted to then be caused to slide in relation to the attachment structure of said first implant so as to enable the other end of said plate to be inserted in a second implant that has previously been joined to a vertebrae, and then is adapted to be slid again in order to bring both ends of said plate into attachment to said attachment structures.
Claim 3
Dependent Claim 70 words
2 . Device according to claim 1 wherein the plate comprises two parts of identical lengths or not, said two parts being joined together by a joining part that is located in an inner part of the plate at a sufficient distance from the ends of said plate to enable the attachment of the plate onto two implants wherein one implant is disposed on either side of said joining part.
Claim 4
Dependent Claim 26 words
3 . Device according to claim 2 wherein the joining part is located in a position offset with respect to the center of the plate length.
Claim 5
Dependent Claim 16 words
4 . Device according to claim 1 wherein the plate has an “H” or “h” shape.
Claim 6
Dependent Claim 65 words
5 . Device according to claim 1 wherein the plate has at least one longitudinally elongated opening having a first region that is of substantially constant width and a second region that is larger in size than the first region, said opening being so sized as to embrace the attachment structure of an implant before sliding to bring said attachment structure into the first region.
Claim 7
Dependent Claim 80 words
6 . Device according to claim 1 wherein the plate is joined to at least one implant by an attachment structure that is able to hold said plate without preventing the implant from rotating about its screwing axis, or without preventing a specified clearance of the plate with respect to the implant, or both; whereby enabling continued screwing of the implant, or adjusting of the position of the plate, or both, after the plate has been assembled on the implant.
Claim 8
Dependent Claim 79 words
7 . Device according to claim 1 wherein at least one implant has an elongated shape around an implant axis, and comprises a first bone anchoring, threaded end and a second end with an elongated part that is adapted to pass through a plate support, wherein said plate support is substantially freely rotatable around said elongated part, and wherein said elongated part has a clamp that is sufficient to clamp the plate ( 2 ) against said plate support.
Claim 9
Dependent Claim 84 words
8 . Device according to claim 1 wherein the elongated clamping support of the implant is mobile with respect to the rest of the implant, through a universal joint between a screw head part of the implant and a part of the clamping support head, whereby enabling continued screwing of the implant after the plate has been assembled on the implant, by rotating the clamping support around a clamping support axis, when said axis forms a non-null angle with the axis of the implant.
Claim 10
Dependent Claim 74 words
9 . Device according to claim 1 wherein the plate is adapted to at least partially surround the clamping support or the second end of the implant and is adapted to rests on a surface of its complementary plate support, said plate support having, on the implant sides a concave surface in the form of a spherical portion which is supported in a complementary fashion on the outer surface of the implant screw head.
Claim 11
Dependent Claim 124 words
10 . Device according to claim 1 wherein the clamping support ( 12 ) has a first elongated end along the support axis a second end bearing the support head, said support head having a non-circular cross-section having at least one concave part and comprising at least one dimension that is greater than at least one cross-section of the first end of the clamping support said support head having firstly one section that is substantially partly circular along a plane including the support axis, and being secondly arranged in the screw head inside a housing wherein the inner surface has at least one projecting part cooperating with the concave part of the support head to prevent rotation of the clamping support around its axis.
Claim 12
Dependent Claim 31 words
11 . Device according to claim 10 wherein the inner surface of the screw head housing has a shape that is substantially complementary to the outer surface of the support head.
Claim 13
Dependent Claim 60 words
12 . Device according to claim 8 wherein the housing receiving the support head has, on the side of said clamping head, a specified dimension that is sufficient to allow the clamping support a clearance along a specified angle, between the axis of the clamping support and the axis of the implant, without said clamping support escaping from said housing.
Claim 14
Dependent Claim 28 words
13 . Device according to claim 8 wherein the clamping support head has a star shaped cross-section with rounded ends, along a plane perpendicular to the support axis.
Claim 15
Dependent Claim 30 words
14 . Device according to claim 8 wherein the clamping support clamping means comprise a threading cooperating with a nut to hold or clamp the plate against the plate support.
Claim 16
Dependent Claim 42 words
15 . Device according to claim 8 wherein the clamping support comprises, at its end opposite the implant, an inner or outer recess adapted to receive a rotational drive tool that enables further screwing or clamping of the implant in the vertebrae.
Claim 17
Dependent Claim 76 words
16 . Device according to the claim 1 wherein said at least one implant has a first bone anchorage end that has a longitudinal bore concentric to its outer surface, said, bore communicating with space outside said outer surface through at least one bone fusion opening disposed in a wall between said inner bore and said outer surface; thus enabling a fusion between the bone substance inside and the bone substance outside of the first end.
Claim 18
Dependent Claim 61 words
17 . Device according to claim 16 wherein the first bone anchorage end of at least one implant has two threadings that are adapted to wind in the same direction during the screwing of the implant, wherein said threadings are disposed respectively, on the outer surface of said first end and on the inner surface of the bore that it comprises.
Claim 19
Dependent Claim 27 words
18 . Device according to claim 1 further comprising at least one bone fusion opening in said implant that has the shape of a longitudinal oblong hole.
Claim 20
Dependent Claim 43 words
19 . A method for preassembling a device according to claim 1 comprising the following steps: assembling a plate support on a clamping support member of an implant; and assembling the nut on an external threading of a clamping support of said implant.

References Cited (Backward Citations)

US1022999A Cited
US1191676A Cited
US1750687A Cited
US4429690A Cited
US5282863A Cited
US4653481A Cited
US4648388A Cited
US4648388B1 Cited
USRE35784E Cited
US5024213A Cited
US5176680A Cited
US5314477A Cited
US5651789A Cited
US5197986A Cited
US5007880A Cited
US5743907A Cited
US5092893A Cited
US5226766A Cited
US5129899A Cited
US5486176A Cited
US5401269A Cited
US5520689A Cited
US5501684A Cited
US5275600A Cited
US5536268A Cited
US5609592A Cited
US5486174A Cited
US5330473A Cited
US5531747A Cited
US6077262A Cited
US5603714A Cited
US5628740A Cited
US5899903A Cited
US5601552A Cited
US5743911A Cited
US5738586A Cited
US6344057B1 Cited
US5620443A Cited
US6254603B1 Cited
US6083224A Cited
US20010010000A1 Cited
US6066140A Cited
US5591166A Cited
US5613968A Cited
US6074393A Cited
US5876403A Cited
US5735851A Cited
US6371988B1 Cited
US6562040B1 Cited
US6063090A Cited
US5782833A Cited
US5733286A Cited
US5725528A Cited
US6248104B1 Cited
US6248105B1 Cited
US6030389A Cited
US6053921A Cited
US6682533B1 Cited
US6391030B1 Cited
US6235034B1 Cited
US6045552A Cited
US6506216B1 Cited
US6565565B1 Cited
US6063121A Cited
US6355038B1 Cited
US5910142A Cited
US6206879B1 Cited
US6214012B1 Cited
US6050997A Cited
US6749613B1 Cited
US20050085917A1 Cited
US20010001119A1 Cited
US6702814B2 Cited
US6261288B1 Cited
US20020013585A1 Cited
US6736816B2 Cited
US20020010467A1 Cited
US6547790B2 Cited
US6554831B1 Cited
US6755829B1 Cited
US6551322B1 Cited
US6579319B2 Cited
US6702815B2 Cited
US6726687B2 Cited
US6565605B2 Cited
US20030045875A1 Cited
US6884241B2 Cited
US20030114853A1 Cited
US20030088251A1 Cited
US20050107788A1 Cited
US6682530B2 Cited
US20040117022A1 Cited
US7204852B2 Cited
US6994727B2 Cited
US7060097B2 Cited
US20050027359A1 Cited
US20050060034A1 Cited
US20050131542A1 Cited
US20060069437A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag