Bone fusion device, system and method

• US 10,420,654 B2
• Filed: 01/18/2017
• Issued: 09/24/2019
• Est. Priority Date: 08/09/2011
• Status: Active Grant

• Current Assignee: Neuropro Technologies Inc.
• Original Assignee: Neuropro Technologies Inc.
• Inventors: Logan, Joseph N., McLuen, Gary R., Baker, Daniel R., Remington, Benjamin J., Stalcup, Gregory C., Williams, Kreigh R.
• Primary Examiner(s): Gibson, Eric S
• Application Number:
  US15/409,310
• Publication Number:
  US 20170119542A1
• Time in Patent Office: 979 Days
• CPC Class Codes: A61F 2/30965 Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping
• CPC Class Codes: A61F 2/442 Intervertebral or spinal discs, e.g. resilient non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455
• CPC Class Codes: A61F 2/4455 for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• CPC Class Codes: A61F 2/4465 having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
• CPC Class Codes: A61F 2/447 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30232 Half-cylinders
• CPC Class Codes: A61F 2002/30235 tubular, e.g. sleeves
• CPC Class Codes: A61F 2002/30265 Flat parallelepipeds
• CPC Class Codes: A61F 2002/30266 wedge-shaped parallelepipeds
• CPC Class Codes: A61F 2002/30365 with additional means for limiting said rotation
• CPC Class Codes: A61F 2002/30367 with additional means for preventing said rotation
• CPC Class Codes: A61F 2002/30372 with additional means for limiting said translation
• CPC Class Codes: A61F 2002/30373 with additional means for preventing said translation
• CPC Class Codes: A61F 2002/30397 Limited lateral translation of the rib within a larger groove
• CPC Class Codes: A61F 2002/30401 with additional means for preventing or locking said sliding
• CPC Class Codes: A61F 2002/30403 Longitudinally-oriented cooperating ribs and grooves on mating lateral surfaces of a mainly longitudinal connection
• CPC Class Codes: A61F 2002/30405 made by screwing complementary threads machined on the parts themselves
• CPC Class Codes: A61F 2002/3041 : having threaded portions of different pitches
• CPC Class Codes: A61F 2002/30411 : having two threaded end parts connected by a threaded central part with opposite threads at its opposite ends, i.e. for adjusting the distance between both end parts by rotating the central part
• CPC Class Codes: A61F 2002/30413 : having threads of increasing height or depth
• CPC Class Codes: A61F 2002/30482 : using a locking cam
• CPC Class Codes: A61F 2002/30484 : Mechanically expandable devices located on the first prosthetic part for locking into or onto the second prosthetic part
• CPC Class Codes: A61F 2002/305 : Snap connection
• CPC Class Codes: A61F 2002/30507 : using a threaded locking member, e.g. a locking screw or a set screw
• CPC Class Codes: A61F 2002/30517 : using a locking plate
• CPC Class Codes: A61F 2002/3052 : unrestrained in only one direction, e.g. moving unidirectionally
• CPC Class Codes: A61F 2002/30522 : releasable, e.g. using a releasable ratchet
• CPC Class Codes: A61F 2002/30523 : by means of meshing gear teeth
• CPC Class Codes: A61F 2002/30528 : Means for limiting said movement
• CPC Class Codes: A61F 2002/30538 : for adjusting angular orientation
• CPC Class Codes: A61F 2002/30556 : for adjusting thickness
• CPC Class Codes: A61F 2002/30558 : Force-limiting means
• CPC Class Codes: A61F 2002/30579 : with mechanically expandable devices, e.g. fixation devices
• CPC Class Codes: A61F 2002/30588 : filled with solid particles
• CPC Class Codes: A61F 2002/30593 : hollow
• CPC Class Codes: A61F 2002/30594 : slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
• CPC Class Codes: A61F 2002/30601 : telescopic
• CPC Class Codes: A61F 2002/30604 : modular
• CPC Class Codes: A61F 2002/30616 : Sets comprising a plurality of prosthetic parts of different sizes or orientations
• CPC Class Codes: A61F 2002/30777 : Oblong apertures
• CPC Class Codes: A61F 2002/30784 : Plurality of holes
• CPC Class Codes: A61F 2002/30827 : Plurality of grooves
• CPC Class Codes: A61F 2002/30841 : Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
• CPC Class Codes: A61F 2002/30843 : Pyramidally-shaped
• CPC Class Codes: A61F 2002/30904 : serrated profile, i.e. saw-toothed
• CPC Class Codes: A61F 2002/3093 : for promoting ingrowth of bone tissue
• CPC Class Codes: A61F 2002/4495 : having a fabric structure, e.g. made from wires or fibres
• CPC Class Codes: A61F 2002/4687 : Mechanical guides for implantation instruments
• CPC Class Codes: A61F 2310/00359 : Bone or bony tissue

Abstract

A bone fusion method, system and device for insertion between bones that are to be fused together in order to replace degenerated discs and/or bones, for example, the vertebrae of a spinal column. The bone fusion device includes a frame and one or more extendable plates. The bone fusion device is able to be inserted between or replace the vertebrae by using a minimally invasive procedure wherein the dimensions and/or other characteristics of the bone fusion device are selectable based on the type of minimally invasive procedure.

Claims

1. A bone fusion device for insertion into a desired location comprising:

a body having a top end, a bottom end opposite the top end, a left end, a right end opposite the left end, a front end, a back end opposite the front end, an interior cavity and an outer surface;

one or more flat rails positioned on the outer surface of the body;

a positioning element extending from a front aperture in the front end of the body into the interior cavity;

one or more tabs each having a serrated exterior surface formed by a plurality of teeth, the tabs configured to selectively move from a retracted position to an extended position,

an outermost surface of the bone fusion device comprising a tab portion formed by the tabs and a remainder portion formed by the remainder of the device not including the tabs, wherein when in the retracted position a majority of the tabs are in the interior cavity within the remainder portion of the outermost surface of the bone fusion device whereas a remainder of the tabs extend outside the interior cavity through tab apertures in one or both of the top end and the bottom end beyond the remainder portion of the outermost surface of the bone fusion device, and further wherein when in the extended position a portion of the majority of the tabs is outside of the interior cavity beyond the remainder portion of the outermost surface of the bone fusion device; and

a plurality of extending blocks configured to slide within the interior cavity of the body in order to move the tabs between the retracted position and the extended position, wherein when in the retracted position the extending blocks are unable to move the tabs farther into the body;

wherein a perimeter of the serrated exterior surface of the tabs lies entirely within a perimeter of the body formed by the front end, the back end, the right end and the left end, and further wherein the rails are positioned on one or both of the top end and the bottom end of the body between the perimeter of the serrated exterior surface of the tabs and a portion of the perimeter of the body formed by the right end and the left end.

2. The device of claim 1, wherein the remainder of the tabs comprises the teeth.

3. The device of claim 2, wherein only a portion or all of the teeth extend beyond the outer surface when the tabs are in the retracted position.

4. The device of claim 3, wherein the rails protrude from the outer surface an equal amount as the remainder of the tabs extend beyond the outer surface when in the retracted position.

5. The device of claim 4, wherein the perimeter of the serrated exterior surface of the tabs comprises a plurality of edges separated by a plurality of corners and one or more of the rails are shorter than one of the edges.

6. The device of claim 5, wherein the rails directly abut at least one of the edges.

7. The device of claim 6, wherein each of the tabs are straddled by a different pair of the rails having the same length and the same shape.

8. The device of claim 7, wherein the positioning element has a positioning aperture and is mechanically coupled with the extending blocks such that moving the positioning element causes the extending blocks to slide within the body.

9. The device of claim 8, wherein the rails are parallel to the positioning element.