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US 2024/0268968 A1Published application
Expandable Device
AssigneeMUSC Foundation for Research Development
InventorsStephen Kalhorn, Mark E. Semler, Joseph Ruscito, Christopher Hapstack
Life of this patent
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Abstract
The present invention provides expandable devices and insertion tools for deploying the expandable devices. The expandable devices are capable of increasing in height and width when expanded from a closed configuration to an open configuration to occupy a larger volume and to present a larger surface area. The expandable devices are lockable and are capable of rigidly occupying a space after expansion. In some embodiments, the expandable devices are useful as interbody devices for spinal fusions.
Claims33
An expandable device, comprising:
- a first and a second superior arm and a first and a second inferior arm, each arm having an anterior and a posterior end and a top and a bottom surface, and each arm having an anterior and posterior opening through the top and bottom surface, wherein the first superior arm is positioned over the first inferior arm with anterior and posterior openings in alignment, and the second superior arm is positioned over the second inferior arm with anterior and posterior openings in alignment;
- four cylindrical bolts positioned within each of the openings of the arms, each bolt having a top end, a bottom end, an outer surface, and a first, a second, a third, and a fourth slot within the outer surface;
- wherein the first and second slot of each bolt are positioned opposite from each other and each extend from near the middle of each bolt towards the top end of each bolt, and the third and fourth slots of each bolt are positioned opposite from each other and extend from near the middle of each bolt towards the bottom end of each bolt;
- a first rod connecting each of the bolts positioned within the anterior openings of the arms, and a second rod connecting each of the bolts positioned within the posterior openings of the arms;
- and
- a plurality of pins, each pin connected to an inner surface of each of the openings of the arms and slidably engaged to a slot of the bolt positioned within the respective opening.
3 more elements
Dependencies are inferred from the claim text.