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US 2014/0277470 A1Published application
Expandable corpectomy device
AssigneeAtlas Spine, Inc.
InventorMatthew G. Baynham
Life of this patent
Estimating the term…
Abstract
The instant invention is a longitudinally adjustable corpectomy device which fits within the intervertebral distracted channel. A ratchet mechanism allows for an extendable member to adjust to a longer length to accommodate a distracted channel. The ratchet type mechanism allows the members to move in a unidirectional movement to prevent the two members from contracting once expanded.
Claims12
A corpectomy device comprising:
- a base member formed from a housing having a lower end with first and second side walls spaced apart and extending therefrom, with opposing end walls, at least one end wall having a centrally disposed U-shaped slot extending from the lower end along a length of the opposing end walls, said U-shaped slot having at least one edge having an engaging surface;
- an expansion member having first and second side walls and first and second end walls constructed and arranged to encompass said base member side and end wall and permit telescope expansion thereto, one said side of said expansion member including an aperture placed adjacent to said U-shaped slot;
- a biasing ratchet assembly mounted within said base having at least one engagement prong operatively associated with said engaging surface;
- wherein said aperture is sized to receive a pinion tool for use in extending said expansion member in relation to said base member, said engagement prong insertable into said engaging surface to prevent said expansion member from contracting once telescoped.
1 more element
A method of manipulating the distance between adjacent vertebrae in a patient, comprising:
- inserting an expandable corpectomy device into an intervertebral cavity, the corpectomy device comprising an upper endplate, a lower endplate, a base member telescopingly receivable into an expansion member;
- the base member comprising a slot having a first side wall having at least one edge with an engaging surface and a ratchet assembly positioned therein, the expansion member having an aperture for receiving a pinion tool for increasing longitudinal distances of the expansion member relative to the base member and said ratchet assembly maintaining said expansion member in a telescoped position.
Dependencies are inferred from the claim text.