US 7,320,707 B2 | ||
Method of laterally inserting an artificial vertebral disk replacement implant with crossbar spacer | ||
James F. Zucherman, San Francisco, Calif. (US); Ken Y. Hsu, San Francisco, Calif. (US); and Steven T. Mitchell, Pleasant Hill, Calif. (US) | ||
Assigned to St. Francis Medical Technologies, Inc., Alameda, Calif. (US) | ||
Filed on Nov. 05, 2004, as Appl. No. 10/981,952. | ||
Claims priority of provisional application 60/517791, filed on Nov. 05, 2003. | ||
Claims priority of provisional application 60/517973, filed on Nov. 06, 2003. | ||
Prior Publication US 2005/0283243 A1, Dec. 22, 2005 | ||
This patent is subject to a terminal disclaimer. | ||
Int. Cl. A61F 2/44 (2006.01) |
U.S. Cl. 623—17.14 [623/17.15] | 16 Claims |
1. A method of inserting an intervertebral implant comprising the steps of:
a. accessing a lateral side of adjacent vertebral bodies;
b. cutting receiving channels into an upper vertebral body and a lower vertebral body, wherein the receiving channels extends
between a first lateral end and a second lateral end of the vertebral bodies; and
c. inserting a first keel of an upper end plate of the implant into the receiving channel of the upper vertebral body and
a second keel of a lower end plate of the implant into the receiving channel of the lower vertebral body, wherein the first
and second keels include a plurality of ports to facilitate bone in-growth, the implant further includes a crossbar spacer
between the first end plate and the second end plate; wherein the crossbar spacer includes a first spacer beam received in
a first socket in the first end plate and a second spacer beam received in a second socket in the second end plate, the first
and second spacer beams being circular in cross section; wherein the crossbar is movable relative to each end plate.
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