Spinal fusion implant and method of insertion thereof
First Claim
1. An implant for insertion within an intervertebral space defined between adjacent vertebrae for supporting the vertebrae in predetermined spaced relation during healing which comprises at least first and second supporting members dimensioned for insertion within the intervertebral space, each supporting member including inner and outer plates arranged in spaced relation to define an internal cavity therebetween, each outer plate of the supporting members having contacting surfaces for contacting vertebral surfaces of the adjacent vertebrae and at least one aperture extending therethrough in communication with the respective internal cavity to permit bone ingrowth, the inner plate of the first supporting member having an arcuate articulating surface cooperating with a correspondingly dimensioned arcuate articulating surface of the inner plate of the second supporting member to permit articulating movement of the first supporting member to accommodate movement of the vertebral column during healing.
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Accused Products
Abstract
A spinal fusion implant includes lower and upper plate members dimensioned for at least partial insertion within the intervertebral space defined between adjacent vertebrae. The lower and upper plate members have contacting surfaces for engaging respective vertebral end faces of the adjacent vertebrae. A linkage mechanism including at least one link member operatively connects the lower and upper plate members. The linkage mechanism actuable to cause relative movement of the lower and upper plate members, wherein upon actuation, the contacting surfaces of the lower and upper plate members engage the vertebral end faces with the lower and upper plate members supporting the adjacent vertebrae in spaced relation during healing.
1287 Citations
18 Claims
- 1. An implant for insertion within an intervertebral space defined between adjacent vertebrae for supporting the vertebrae in predetermined spaced relation during healing which comprises at least first and second supporting members dimensioned for insertion within the intervertebral space, each supporting member including inner and outer plates arranged in spaced relation to define an internal cavity therebetween, each outer plate of the supporting members having contacting surfaces for contacting vertebral surfaces of the adjacent vertebrae and at least one aperture extending therethrough in communication with the respective internal cavity to permit bone ingrowth, the inner plate of the first supporting member having an arcuate articulating surface cooperating with a correspondingly dimensioned arcuate articulating surface of the inner plate of the second supporting member to permit articulating movement of the first supporting member to accommodate movement of the vertebral column during healing.
- 10. An implant for insertion between adjacent vertebrae, which comprises an implant member including upper and lower support components operatively connected to each other and arranged to span the intervertebral space to support the adjacent vertebrae in desired predetermined spaced relation during healing, each support component including outer and inner members arranged to define an internal cavity therebetween for accommodating bone growth inducing substances, the outer members of the support components having a plurality of apertures extending therethrough in communication with the internal cavity to promote bone ingrowth.
Specification