US 9,808,350 B2
Laminoplasty implant, method and instrumentation
Yolanda D. Shepard, Hoboken, NJ (US); Charles L. Bush, Jr., Fairfield, NJ (US); and Douglas Pedrick, Newburgh, NY (US)
Assigned to Stryker European Holdings I, LLC, Kalamazoo, MI (US)
Filed by Stryker European Holdings I, LLC, Kalamazoo, MI (US)
Filed on Sep. 18, 2013, as Appl. No. 14/30,496.
Application 14/030,496 is a continuation of application No. 13/362,413, filed on Jan. 31, 2012, granted, now 8,562,681.
Prior Publication US 2014/0067065 A1, Mar. 6, 2014
Int. Cl. A61F 2/44 (2006.01); A61B 17/70 (2006.01); A61B 17/80 (2006.01)
CPC A61F 2/44 (2013.01) [A61B 17/7071 (2013.01); A61B 17/808 (2013.01)] 16 Claims
OG exemplary drawing
1. A laminal implant comprising:
a first body including a first flange adapted to engage three sides of a first lamina end, a cantilever tab extending to a free end, and a receiving channel, the tab and receiving channel extending away from the first flange in the same direction, at least a portion of the first flange includes an opening adapted to increase pliability of the portion, provide a window through which bone growth can occur, provide for placement and securement of a bone graft, or any combination; and
a second body including a second flange adapted to engage at least two sides of a second lamina end, and a plurality of teeth adapted to engage a projection on the tab, at least a portion of the second body adapted to be positioned within the receiving channel,
the first and second bodies adapted to slideably engage one another wherein the plurality of teeth are shaped such that they can pass the tab when moving in a first direction, and are prevented from moving, by the tab, in a second direction opposite the first direction.