Joint spacer with compartment for orthobiologic material
DCFirst Claim
1. An implantable device for changing the spatial relationship between first and second bones, the device comprising a wedge body configured and dimensioned for insertion into a joint located between the first and second bones, the wedge body having a thin end portion, a thick end portion, a first major side surface which extends from the thin end portion to the thick end portion, a second major side surface which intersects the first major side surface to form an edge at the thin end portion and extends from the thin end portion to the thick end portion, and a minor side surface which extends between the first and second major side surfaces and tapers from the thick end portion to the thin end portion, the wedge body having a compartment containing a bone growth inducing material.
6 Assignments
Litigations
2 Petitions
Accused Products
Abstract
To change a spatial relationship between two or more bones in a patient'"'"'s body, a wedge member is moved into a joint between the bones. As the wedge member enters the joint, pivotal movement occurs between the bones to change the orientation of the bones relative to each other. The wedge member may have a circular cross sectional configuration and be moved into the joint by rotating the wedge member about an axis which extends between a thin leading edge portion and a thick trailing edge portion of the wedge member. Alternatively, the wedge member may have a cam-shaped configuration and be rotated through less than a revolution to apply force against the bones. The wedge member may have a porous construction which enables bone to grow through the wedge member and immobilize the joint. The wedge member may be coated with and/or contain bone growth promoting material. The wedge member may be connected to only one of the bones or may be connected to two adjacent bones. If the wedge member is connected to only one bone, the joint may be capable of being flexed after the wedge member is inserted into the joint.
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Citations
41 Claims
- 1. An implantable device for changing the spatial relationship between first and second bones, the device comprising a wedge body configured and dimensioned for insertion into a joint located between the first and second bones, the wedge body having a thin end portion, a thick end portion, a first major side surface which extends from the thin end portion to the thick end portion, a second major side surface which intersects the first major side surface to form an edge at the thin end portion and extends from the thin end portion to the thick end portion, and a minor side surface which extends between the first and second major side surfaces and tapers from the thick end portion to the thin end portion, the wedge body having a compartment containing a bone growth inducing material.
- 14. A spinal implant for insertion in a joint located between first and second vertebrae, the implant comprising a wedge member configured and dimensioned for insertion into the joint, the wedge member having a thin end portion, a thick end portion, a first major side surface which extends from the thin end portion to the thick end portion, a second major side surface which intersects the first major side surface to form an edge at the thin end portion and extends from the thin end portion to the thick end portion, and a minor side surface which extends between the first and second major side surfaces and tapers from the thick end portion to the thin end portion, the wedge member having a compartment containing a bone growth inducing material.
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30. A method of changing the spatial relationship between first and second bones, the method comprising:
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providing an implantable device including an internal compartment, the implantable device having a thin end portion, a tick end portion, a first major side surface which extends from the thin end portion to the thick end portion, a second major side surface which intersects the first major side surface to form an edge at the thin end portion and extends from the thin end portion to the thick end portion, and a minor side surface which extends between the first and second major side surfaces and tapers from the thick end portion to the thin end portion; placing a bone growth inducing material into the internal compartment, the bone growth inducing material including a bone morphogenic protein; and inserting the implantable device into a joint located between the first and second bones. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification