Back to results
US 9,808,350 B2Granted
Laminoplasty implant, method and instrumentation
AssigneeStryker European Holdings I, LLC
InventorsYolanda D. Shepard, Charles L. Bush, Jr., Douglas Pedrick
Life of this patent
Estimating the term…
Abstract
In one embodiment, the present invention is a laminal implant including: a first body including a first flange adapted to engage a first lamina end, a tab and a receiving channel; and a second body including a second flange adapted to engage a second lamina end, and a plurality of teeth adapted to engage 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.
Claims16
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.
1 more element
A laminal implant comprising:
- a first body having a flange, a deflectable cantilever tab, and a receiving channel, a first portion of the flange including an opening and a second portion of the flange including at least one through hole, the first portion of the flange adapted to be positioned on an inner side of a cut lamina end and the second portion of the flange adapted to be positioned on an outer side of the cut lamina end, the opening of the first portion includes a perimeter defined by the first portion on four sides and is 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 having a plurality of teeth adapted to engage the tab, at least a portion of the second body adapted to be positioned within the receiving channel such that the first and second bodies are removeably coupled to one another and slidable relative to one another such that the implant is expandable, 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.
A laminal implant comprising:
- a first body including a first flange adapted to engage three sides a first lamina end, a tab and a receiving channel;
- 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 the tab, at least a portion of the second body adapted to be positioned within the receiving channel, the first flange being larger than the second flange;
- and
- a stop,
- 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, wherein the stop is adapted to prevent the first and second bodies from disengaging one another,
- wherein 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.
3 more elements
Dependencies are inferred from the claim text.