Spinal bone implant
AssigneeWarsaw Orthopedic, Inc.
InventorKevin T. Foley
Life of this patent
Estimating the term…
Abstract
Implantable devices useful for creating bony fusion particularly in intervetebral spinal fusion. The device is formed of bone and has a body portion with an upper flange member and an opposite lower flange member extending from the body portion. The upper and lower flange members are at least partially demineralized to create a flexible ligament extending from the body portion. In one application, the body portion is inserted into a disc space and the flexible ligament is secured to vertebrae on either side of the disc space. Techniques are also disclosed for making the implantable devices and for inserting the implantable device into an intervertebral disc space to promote interbody fusion.
Claims39
An implant, comprising:
- a body portion positionable in the disc space between adjacent upper and lower vertebrae;
- an upper member extending from said body portion along the body of said upper vertebra;
- and
- a lower member extending from said body portion along the body of said lower vertebra, wherein said body portion, said upper member, and said lower member are each made from bone material.
An implant, comprising:
- a bone body extending between a first bearing surface and a second bearing surface;
- and
- an upper bone member extending from said body in a first direction and a lower bone member extending from said body in a second direction opposite said first direction, wherein said upper and lower bone members are at least partially demineralized.
A spinal fusion implant adapted for insertion into the space between adjacent first and second vertebral bodies, comprising:
- a bone body having a first bearing surface for contacting an endplate of the first vertebral body and a second bearing surface for contacting an endplate of the second vertebral body;
- and
- at least one flexible portion extending from the bone body for securement to the first and second vertebral bodies outside the disc space.
A method of preparing a bone implant, comprising:
- providing a rigid bone segment having a body portion with an upper bearing surface and an opposite lower bearing surface, said rigid bone segment further including an upper flange member and an opposite lower flange member each extending from said body portion;
- and
- at least partially demineralizing the upper and lower flange members to create a flexible upper flange member and a flexible lower flange member extending from the rigid body portion.
A method of inserting an interbody fusion implant made of bone, comprising:
- providing an implant formed of bone and having a body portion with an upper bearing surface and opposite lower bearing surface, said rigid bone segment further including a flexible upper flange member and an opposite flexible lower flange member each extending from said body portion;
- accessing the disc space between adjacent vertebrae;
- inserting the body portion of the implant into the disc space;
- securing the flexible upper flange member to the body of the upper vertebra;
- and
- securing the flexible lower flange member to the body of the lower vertebra.
A method of preparing a bone implant, comprising:
- obtaining a rigid bone segment;
- and
- forming from said rigid bone segment an implant having a body portion with an upper bearing surface and opposite lower bearing surface, said rigid bone segment further including an upper flange member and an opposite lower flange member each extending from said body portion.
Dependencies are inferred from the claim text.