Systems for and methods of fusing a sacroiliac joint
First Claim
1. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;
positioning an implant assembly adjacent the sacroiliac joint, the implant assembly comprising a distal end portion, a proximal end portion, and a body portion extending between the distal and proximal end portions, the body portion including a first side member including a first opening and a second side member including a second opening and oppositely disposed with the first side member such that the first and second openings are generally aligned to define a passageway extending across the body portion, each of the first and second openings bounded by a fixed perimeter, each side member being structured and arranged to expandably engage the sacroiliac joint following insertion therein;
delivering the implant assembly into the sacroiliac joint via a posterior approach with a generally anterior trajectory of delivery, the implant assembly being positioned in the joint space such that the first and second oppositely disposed side members generally oppose the sacrum and the ilium respectively; and
expanding the first and second oppositely disposed side members into operative engagement with the sacrum and the ilium.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems for and methods of fusing a sacroiliac joint are provided which include an implant assembly adapted to be inserted into the joint space defined by the bones of a sacrum and an ilium, a delivery tool and means for inserting the implant assembly into the joint. The implant assembly includes a body disposed intermediate distal and proximate end portions thereof and having oppositely disposed side members adapted to expandably engage the sacroiliac joint following insertion of the assembly into the joint space. A tool is provided and provides a means for placing the implant assembly adjacent the sacroiliac joint, inserting it into the joint space and expanding means are thereafter applied to expand the oppositely disposed side members into operative engagement with the joint.
424 Citations
150 Claims
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1. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;positioning an implant assembly adjacent the sacroiliac joint, the implant assembly comprising a distal end portion, a proximal end portion, and a body portion extending between the distal and proximal end portions, the body portion including a first side member including a first opening and a second side member including a second opening and oppositely disposed with the first side member such that the first and second openings are generally aligned to define a passageway extending across the body portion, each of the first and second openings bounded by a fixed perimeter, each side member being structured and arranged to expandably engage the sacroiliac joint following insertion therein; delivering the implant assembly into the sacroiliac joint via a posterior approach with a generally anterior trajectory of delivery, the implant assembly being positioned in the joint space such that the first and second oppositely disposed side members generally oppose the sacrum and the ilium respectively; and expanding the first and second oppositely disposed side members into operative engagement with the sacrum and the ilium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 110, 111, 112, 113, 116, 118, 119, 120, 121, 122, 123, 129, 130, 131, 132, 133, 134, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150)
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
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28. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;delivering an implant assembly non-transversely into the joint plane of the sacroiliac joint, the implant assembly comprising a distal end portion, a proximal end portion, and a body portion extending along a longitudinal axis between the distal and proximal end portions, the body portion including first and second oppositely disposed side members, a portion of each of the first and second side members configured to laterally expand relative to the longitudinal axis to engage the sacrum and ilium respectively following insertion therein, the body portion further including a feature configured to constrain the lateral expansion to within a predetermined amount of expansion, the implant assembly being positioned in the joint space such that the first and second oppositely disposed side members generally oppose the sacrum and the ilium respectively; and expanding each of the first and second side members within the predetermined amount of expansion and into operative engagement with the sacrum and the ilium respectively. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 53, 54, 109, 114, 115, 124, 125, 126, 127, 128)
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
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48. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;delivering an implant assembly non-transversely into the joint plane of the sacroiliac joint, the implant assembly comprising a distal end portion, a proximal end portion, and a body portion extending a fixed length along a longitudinal axis between the distal and proximal end portions, the body portion including a first side member including a first bone engaging surface and a second side member including a second bone engaging surface, the first bone engaging surface opposite of and disposed a pre-expanded width from the second bone engaging surface, the first and second side members configured to laterally expand relative to the longitudinal axis to engage the sacrum and ilium respectively following insertion therein, the implant assembly being delivered in the joint space such that the first and second bone engaging surfaces generally oppose the sacrum and the ilium respectively; and expanding the first and second side members with respect to the longitudinal axis such that the first and second bone engaging surfaces are disposed an expanded width apart to operatively engage the sacrum and the ilium respectively, the expanded width being wider than the pre-expanded width. - View Dependent Claims (49, 50, 51, 52, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 79, 80, 135, 136, 137, 138, 139, 140)
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
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68. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;delivering an implant assembly non-transversely into the joint plane of the sacroiliac joint, the implant assembly comprising a distal end portion, a proximal end portion, and a body portion extending a length along a longitudinal axis between the distal and proximal end portions, the body portion including a first side member and a second side member opposite the first side member, the first side member including a first ridge extending a first fixed length of the first side member, the second side member including a second ridge extending a second fixed length of the second member, the first and second ridges generally aligning in a plane extending transversely across the body portion, the first and second side members configured to laterally expand relative to the longitudinal axis to engage the sacrum and ilium respectively following insertion therein, the implant assembly being positioned in the joint space such that the first and second oppositely disposed side members generally oppose the sacrum and the ilium respectively; and expanding the first and second side members with respect to the longitudinal axis and into operative engagement with the sacrum and the ilium respectively, wherein the first and second ridges remain generally aligned in the plane following expansion of the first and second side members. - View Dependent Claims (69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 81, 82, 83, 84, 85, 86, 87, 88, 90, 91)
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
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89. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;delivering an implant assembly non-transversely into the joint plane of the sacroiliac joint, the implant assembly comprising a distal end portion, a proximal end portion, and a body portion extending a length along a longitudinal axis between the distal and proximal end portions, the body portion comprising a first side member and a second side member opposite the first side member, the first side member comprising a first ridge extending a first length between distal and proximal portions of the first side member, the second side member comprising a second ridge extending a second length between distal and proximal portions of the second member, the first and second ridges generally aligning in a plane extending transversely across the body portion, the plane being spaced a distance apart from the longitudinal axis such that the plane does not intersect the longitudinal axis, the first and second side members configured to laterally expand relative to the longitudinal axis to engage the sacrum and ilium respectively following insertion therein, the implant assembly being positioned in the joint space such that the first and second oppositely disposed side members generally oppose the sacrum and the ilium respectively; and expanding the first and second side members with respect to the longitudinal axis and into operative engagement with the sacrum and the ilium respectively, wherein the first and second ridges remain generally aligned in the plane following expansion of the first and second side members.
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
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92. A method of fusing a sacroiliac joint including:
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
a joint space defined between the sacrum and the ilium and defining a joint plane;
an extra-articular space including an extra-articular recess access region; and
an articular region including a posterior inferior access region, a posterior boundary segment, an anterior-inferior corner, a caudal region, and a cranial region, the method comprising;delivering an implant assembly non-transversely into the joint plane of the sacroiliac joint, the implant assembly comprising; a distal end portion, a proximal end portion, and a body portion extending a length along a longitudinal axis between the distal and proximal end portions, the body portion comprising; a first member at least a portion of which is housed substantially within an interior region of the body portion when in a pre-deployed condition, the first member comprising a tapered lateral termination, the first member aligned generally perpendicular to both the joint plane and to an iliac facing surface of the body portion, and a second member at least a portion of which is housed substantially within an interior region the body portion when in a pre-deployed condition, the second member comprising a tapered lateral termination, the second member aligned generally perpendicular to both the joint plane and to a sacral facing surface of the body portion, each of the first and second members aligned in a generally parallel manner relative to a plane extending transversely across the body portion, the plane spaced a distance apart from the longitudinal axis such that the plane does not intersect the longitudinal axis, the first and second members configured to laterally deploy relative to the longitudinal axis to engage the sacrum and the ilium respectively following insertion therein, the implant assembly being positioned in the joint space such that the iliac and sacral facing surfaces generally oppose the ilium and the sacrum respectively; and deploying the first and second members with respect to the longitudinal axis and into operative engagement with the ilium and the sacrum respectively, wherein the first and second members remain generally aligned in a generally parallel manner relative to the plane following deployment of the first and second members and wherein at least one of the first and second members is coplanar with the plane. - View Dependent Claims (93, 94, 95, 96, 117)
- bone material including a sacrum and an ilium, the sacrum including a lateral anterior curved boundary, the ilium including a posterior superior iliac spine having a posterior inferior overhang and a posterior inferior iliac spine;
Specification