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US 2019/0336292 A1Published application
Sacroiliac joint implants and implantation methods
OwnerKenan AKSUinventor
Life of this patent
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Abstract
Sacroiliac (SI) joint implants for promoting SI joint fusion and methods of their delivery are described herein. The SI joint implant has a spacer operatively coupled to a planar member having tapered holes to receive fastening elements. When placed in the SI joint, the spacer engages the articular surfaces of the SI joint while the plate traverses the SI joint. The implant is held in place fastening elements, which are inserted through the tapered holes in the planar member. The implant is delivered via an inferior inlet MIS procedure, wherein the SI joint is accessed through an inlet inferior to the SI joint.
Claims30
A system for fusing a sacroiliac joint, comprising:
- a spacer configured for engaging both articular surfaces of the sacroiliac joint via an inferior insertion direction that is offset inferiorly with a posterior-anterior direction that is perpendicular to a superior-inferior direction, the spacer being elongated along a first longitudinal axis and having a first surface and a second surface opposite the first surface, wherein the first and second surfaces each are spaced from and extend along the first longitudinal axis;
- and
- a planar member that is elongated along a second longitudinal axis, the planar member having at least one tapered hole located at a point along the second longitudinal axis, wherein the planar member is operatively coupled to the spacer such that the second longitudinal axis is non-parallel to the first longitudinal axis and traverses an inferior aspect of the sacroiliac joint when placed in vivo.
A system for fusing a sacroiliac (SI) joint, comprising:
- at least one instrument configured to be inserted along an inferior insertion direction to prepare the SI joint, wherein the inferior insertion directing is offset inferiorly with respect to a posterior-anterior direction that is perpendicular a superior-inferior direction;
- and
- a spacer configured for engage articular surfaces of the SI joint via an inferior insertion direction, the spacer being elongated along a first longitudinal axis and having a first end, a second end opposite the first end along the first longitudinal axis, a first surface coupled to the first end and the second end, a second surface opposite the first surface and coupled to the first end and the second end, a first side surface coupled to the first end and the second end, a second side surface opposite the first side surface and coupled to the first end and a second end, and a cavity that extends entirely through the spacer, the spacer defining a length that extends from the first end to the second end, a height that extends from the first surface to the second surface and that is perpendicular to the length, and a width that is perpendicular to the length and the height, wherein the length is greater than the width and the height.
A system for fusing a sacroiliac (SI) joint, comprising:
- at least one instrument configured to be inserted along an inferior insertion direction to prepare the SI joint, wherein the inferior insertion is offset inferiorly with respect to a posterior-anterior direction that is perpendicular to a superior-inferior direction;
- and
- a spacer configured for engage articular surfaces of the SI joint via an inferior insertion direction, the spacer being elongated along a first longitudinal axis and having a first end, a second end opposite the first end along the first longitudinal axis, a first surface coupled to the first end and the second end, a second surface opposite the first surface and coupled to the first end and the second end, and a cavity that extends from the first surface to the second surface, the spacer defining a length that extends from the first end to the second end, a height that extends from the first surface to the second surface and that is perpendicular to the length, and a width that is perpendicular to the length and the height;
- a first fastener configured to engage a first bone location proximate the SI joint;
- and
- a second fastener configured to engage a second bone location proximate the SI joint, wherein the first and second fasteners are configured to engage the bone so that 1) the spacer is positioned between the first fastener and the second fastener, and 2) the first and second fastener are substantially parallel to the length of the spacer.
3 more elements
Dependencies are inferred from the claim text.