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US 9,844,445 B2Granted
Expandable interbody spacer device
AssigneeDePuy Synthes Products, Inc.
InventorsJoshua McManus, William Woodburn, Walter Widmer
Life of this patent
Estimating the term…
Abstract
An expandable interbody spacer (10) is provided that includes a pair of oppositely facing endplate components (20, 40) and an interior component that includes one or more vertically extending stacks of arranged C-clip members (70) radially surrounding one or more bosses (30) protruding interiorly from one of the endplates, wherein the size and configuration of the bosses and the C-clip members are designed to allow the incremental expansion of expandable interbody spacer.
Claims19
A spinal implant, comprising:
- an upper endplate;
- a lower endplate;
- and
- a resilient member disposed between the upper and lower endplates;
- wherein separating the upper and lower endplates releases the resilient member from a deflected position to a relaxed position such that the resilient member supports the upper and lower endplates in a separated configuration
- wherein the resilient member comprises resilient arm members such that a space is formed between the arms, and wherein a boss member of the upper endplate is arranged and configured to pass through the space when the resilient member is in the deflected position and the resilient member does not permit the boss member to pass through the space when the resilient member is in the relaxed position, and
- wherein the boss member is configured to slidably receive a post.
4 more elements
A spinal implant, comprising:
- a first endplate;
- a second endplate having a boss extending therefrom towards the first endplate;
- and
- a flexible clip;
- wherein the first and second endplates are movable between a collapsed configuration in which the flexible clip, in a deflected position, is not positioned between the boss and the first endplate and an expanded configuration in which the flexible clip, in a relaxed position, is positioned between the boss and the first endplate;
- wherein the boss is configured to slidably receive a post;
- and
- wherein the flexible clip is disposed between the first and second endplates in both the collapsed and expanded configurations.
5 more elements
Dependencies are inferred from the claim text.