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US 12,161,374 B2Granted
Matrix implant
AssigneeSI-Bone Inc.
InventorsBret W. Schneider, Roxanne Simon, Derek P. Lindsey, Scott A. Yerby
Life of this patent
Estimating the term…
Abstract
Implants for the fusion or fixation of two bone segments are described. For example, the implants can be used for the fusion or fixation of the sacroiliac joint. The implants can have a matrix structure, have a rectilinear cross-sectional area, and have a curvature.
Claims18
An implant for the fixation or fusion of a sacroiliac joint, the implant comprising:
- an elongate body having a fixed length, a proximal end, a distal end, a longitudinal axis and a rectilinear outer profile in a cross-section transverse to the longitudinal axis, the elongate body further comprising:
- a plurality of linear apex struts disposed between the proximal end and the distal end of the elongate body,
- wherein each apex strut of the plurality of linear apex struts is part of a first pair of apex struts with a first circumferentially adjacent apex strut, and is part of a second pair of apex struts with a second circumferentially adjacent apex strut, and
- a plurality of faces, wherein every pair of circumferentially adjacent linear apex struts has one of the plurality of faces therebetween, and wherein each of the plurality of faces includes a plurality of fenestrations,
- wherein the plurality of linear apex struts are preferentially porous with radially outer portions of the plurality of linear apex struts being porous and radially inner portions of the plurality of linear apex struts are not porous.
2 more elements
An implant for the fixation or fusion of a sacroiliac joint, the implant comprising:
- an elongate body having a fixed length, a proximal end, a distal end, a longitudinal axis and a rectilinear outer profile in a cross-section transverse to the longitudinal axis, the elongate body further comprising:
- a plurality of linear apex struts parallel with the longitudinal axis and disposed between the proximal end and the distal end of the elongate body,
- wherein each apex strut of the plurality of linear apex struts is part of a first pair of apex struts with a first circumferentially adjacent apex strut, and is part of a second pair of apex struts with a second circumferentially adjacent apex strut;
- and
- a plurality of faces, wherein every pair of circumferentially adjacent linear apex struts has one of the plurality of faces therebetween, and wherein each of the plurality of faces includes a plurality of support struts defining a plurality of fenestrations,
- wherein the plurality of linear apex struts are preferentially porous with radially outer portions of the plurality of linear apex struts being porous and radially inner portions of the plurality of linear apex struts are not porous.
3 more elements
An implant for the fixation or fusion of a sacroiliac joint, the implant comprising:
- an elongate body having a fixed length, a proximal end, a distal end, a longitudinal axis and a triangular outer profile in a cross-section transverse to the longitudinal axis, the elongate body further comprising:
- a plurality of linear apex struts disposed between the proximal end and the distal end of the elongate body,
- wherein each apex strut of the plurality of linear apex struts is part of a first pair of apex struts with a first circumferentially adjacent apex strut, and is part of a second pair of apex struts with a second circumferentially adjacent apex strut;
- and
- a plurality of faces, wherein every pair of circumferentially adjacent linear apex struts has one of the plurality of faces therebetween, and wherein each of the plurality of faces includes a plurality of support struts forming a plurality of fenestrations in the corresponding face,
- wherein the plurality of linear apex struts are preferentially porous with radially outer portions of the plurality of linear apex struts being porous and radially inner portions of the plurality of linear apex struts are not porous, and
- wherein the plurality of support struts in each of the plurality of faces are preferentially porous with radially outer portions of the plurality of support struts being porous and radially inner portions of the plurality of support struts not porous.
4 more elements
Dependencies are inferred from the claim text.