VARIABLE LORDOSIS SPACER AND RELATED METHODS OF USE
First Claim
Patent Images
1. A medical system comprising:
- an expandable device comprising;
an upper endplate;
a lower endplate opposed to the upper endplate;
a first ramp positioned between the upper endplate and the lower endplate, wherein the first ramp includes a first upper angled surface that engages the upper endplate and a first lower angled surface that engages the lower endplate;
a second ramp positioned between the upper endplate and the lower endplate, wherein the second ramp includes a second upper angled surface that engages the upper endplate and a second lower angled surface that engages the lower endplate; and
an actuation mechanism insertable into the first ramp and the second that causes expansion between the upper endplate and the lower endplate,wherein the first ramp includes a first bore for receiving the actuation mechanism and a second bore for receiving graft material,wherein the second ramp includes a second bore for receiving the actuation mechanism and the second bore for receiving graft material,wherein the first bore of the first ramp is substantially aligned with first bore of the second ramp, and the second bore of the second ramp is substantially aligned with the second bore of the second ramp.
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Accused Products
Abstract
An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. An inserter instrument includes an outer shaft having a bore extending longitudinally therethrough and an inner shaft extending through the bore in the outer shaft. The outer shaft is configured to engage the first or second opening in the second ramp, and the inner shaft is configured to engage the corresponding first or second opening in the first ramp to control implant height and/or lordotic angle.
3 Citations
17 Claims
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1. A medical system comprising:
an expandable device comprising; an upper endplate; a lower endplate opposed to the upper endplate; a first ramp positioned between the upper endplate and the lower endplate, wherein the first ramp includes a first upper angled surface that engages the upper endplate and a first lower angled surface that engages the lower endplate; a second ramp positioned between the upper endplate and the lower endplate, wherein the second ramp includes a second upper angled surface that engages the upper endplate and a second lower angled surface that engages the lower endplate; and an actuation mechanism insertable into the first ramp and the second that causes expansion between the upper endplate and the lower endplate, wherein the first ramp includes a first bore for receiving the actuation mechanism and a second bore for receiving graft material, wherein the second ramp includes a second bore for receiving the actuation mechanism and the second bore for receiving graft material, wherein the first bore of the first ramp is substantially aligned with first bore of the second ramp, and the second bore of the second ramp is substantially aligned with the second bore of the second ramp. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical system comprising:
an expandable device comprising; an upper endplate; a lower endplate opposed to the upper endplate; a first ramp positioned between the upper endplate and the lower endplate, wherein the first ramp includes a first upper angled surface that engages the upper endplate and a first lower angled surface that engages the lower endplate; a second ramp positioned between the upper endplate and the lower endplate, wherein the second ramp includes a second upper angled surface that engages the upper endplate and a second lower angled surface that engages the lower endplate; and an actuation mechanism insertable into the first ramp and the second ramp that causes expansion of the expandable device, wherein the first ramp includes a first bore for receiving the actuation mechanism and second bore for receiving graft material, wherein the first bore of the first ramp is substantially aligned with the first bore of the second ramp, and the second bore of the first ramp is substantially aligned with the second bore of the second ramp. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
Specification