MULTI-WALLED PLACEHOLDER
3 Assignments
0 Petitions
Accused Products
Abstract
A placeholder for vertebrae or vertebral discs includes a tubular body, which along its jacket surface has a plurality of breakthroughs or openings for over-growth with adjacent tissue. The placeholder includes at least a second tubular body provided with a plurality of breakthroughs and openings at least partially inside the first tubular body. The first and second tubular bodies can have different cross-sectional shapes, can be are arranged inside one another by press fit or force fit or can be connected to each other via connecting pins and arranged side by side to one another in the first body.
22 Citations
68 Claims
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1-52. -52. (canceled)
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53. A placeholder or implantation in a human or animal body, the placeholder comprising an outer wall having a plurality of openings, and an inner wall disposed within the outer wall and having a plurality of openings,
wherein the inner wall is spaced apart from the outer wall in a direction transverse to a longitudinal axis of the placeholder that extends from a first end of the placeholder to a second end of the placeholder, the inner wall being spaced apart from the outer wall with at least one connecting portion to promote in-growth of body tissue in a space between the inner and outer walls, openings of the plurality of openings of the outer wall intersecting the space between the inner and outer walls, wherein the at least one connecting portion comprises an end wall arranged transverse to the longitudinal axis at or in a region of the that end of the placeholder, and wherein the placeholder further comprises first projections extending away from the first end of the placeholder.
Specification