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EP1346694A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Vertebral endplate milling device

Assignee: DePuy Spine LLC
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Filing: 2003-03-19
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Granted: —
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Expires: 2023-03-19
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Abstract

Abstract A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies includes a first abrading element (703) which has a first abrading surface (705) shaped to create a first predetermined surface contour in a vertebral body endplate, a first surface portion (707) facing away from the first abrading surface, and a second surface portion (709) facing away from the first abrading surface. The device includes a first distance adjustment element (711) having a first sliding surface (713) contacting the first inner surface portion for slidable engagement therewith, and a second distance adjustment element (715) having a second sliding surface (717) contacting the second inner surface portion for slidable engagement therewith. By moving the distance adjustment elements together or apart, the first abrading element may be moved to a position higher or lower on the sliding surface, when a variation in the height of the disk space must be accommodated, between the endplates which the abrading surface is intended to mill.

Inventors

  • 👤 Hassan Serhan

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 23:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1671; A61B17/1613; A61B17/1615; A61B17/1617; A61B17/1626; A61B2017/1602; A61B90/00; A61B90/06; A61B2090/061; A61B2090/064

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 111 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a. a first abrading element comprising: i. a first abrading surface shaped to create a first predetermined surface contour in a vertebral body endplate, ii. a first surface portion facing away from the first abrading surface, and iii. a second surface portion facing away from the first abrading surface, b. a first distance adjustment element having a first sliding surface contacting the first inner surface portion for slidable engagement therewith, and c. a second distance adjustment element having a second sliding surface contacting the second inner surface portion for slidable engagement therewith.
Claim 2
Dependent Claim 15 words
The device of claim 1 wherein the first sliding surface opposes the second sliding surface.
Claim 3
Dependent Claim 39 words
The device of claim 2 wherein the first distance adjustment element further comprises a first inner face, the second distance adjustment element further comprises a second inner face, and wherein the first inner face opposes the second inner face.
Claim 4
Dependent Claim 41 words
The device of claim 3 wherein the first distance adjustment element further comprises a first outer face, the second distance adjustment element further comprises a second outer face, and wherein the first outer face faces away from the second outer face.
Claim 5
Dependent Claim 43 words
The device of claim 1 wherein the first distance adjustment element further comprises a third sliding surface facing away from the first sliding surface, and the second distance adjustment element further comprises a fourth sliding surface facing away from the second sliding surface.
Claim 6
Dependent Claim 15 words
The device of claim 5 wherein the third sliding surface opposes the fourth sliding surface.
Claim 7
Dependent Claim 85 words
The device of claim 5 which includes a second abrading element comprising: i. a second abrading surface shaped to create a second predetermined surface contour in a vertebral body endplate, and ii. a third surface portion facing away from the second abrading surface, and iii. a fourth surface portion facing away from the second abrading surface, wherein the third surface portion contacts the third sliding surface for slidable engagement therewith, and wherein the fourth surface portion contacts the fourth sliding surface for slidable engagement therewith.
Claim 8
Dependent Claim 23 words
The device of claim 4 wherein the first distance adjustment element further comprises a first hole traversing the inner and outer faces thereof.
Claim 9
Dependent Claim 36 words
The device of claim 4 further comprising a first elongate member having proximal portion and a distal portion, and forming a hollow shaft, wherein the distal portion contacts the outer face of the first outer face.
Claim 10
Dependent Claim 22 words
The device of claim 7 wherein the first distance adjustment element and the distal portion of the second elongate member are integral.

References Cited (Backward Citations)

US5514180A Cited
US5865846A Cited
US6083228A Cited

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