Bone fusing device for fusing phalanges

1. A bone fusing device to connect and facilitate fusion between two adjacent phalanges in a body; comprising:

a single elongated body having a first distal end and a second proximal end connected by a middle portion having four radially extending anti-rotation fins, the first distal end being shorter than the second proximal end and the elongated body having an affixed bend at a location in the middle portion, wherein the four anti-rotation fins are oriented at 0 degrees, 90 degrees, 180 degrees and 270 degrees relative to a cross section of the middle portion of the elongated body; and

wherein each end has a rounded generally hemispherical in shape bone entry tip and a plurality of adjacent barbs, the first distal end having a length of 9 mm and a diameter of 3.3 mm or equal to the diameter of the second proximal end, the second proximal end having a length of 16 mm and a diameter of 3.0 mm, each of the barbs has a sloped surface which is semi-spherical for entry into the bone and a sharp surface configured to allow rotation and to prevent extraction once press fit into one of the phalanges, the fins have a first end extending and starting spaced a distance from a last barb at the first distal end, each fin extending past the affixed bend toward the second proximal end to a tapered second end on the middle portion spaced a distance from a last barb at the second proximal end, the fins having a total height of 3.5 mm exhibiting a greater size than the diameters of the first distal and second proximal ends, the fins being configured to engage uncompromised boney tissue to prevent rotation, wherein the bend forms a drop angle θ of 5 degrees to 15 degrees relative first and second ends and the drop angle θ aligns with the top or 0 degree and bottom or 180 degree fins, the top fin having a convexity at a maximum height and the bottom having a concavity at the maximum height, the maximum height straddling and extending about the bend wherein the first distal end and the second proximal end are semi-spherical shaped with the anti-rotation fins disposed in the middle portion spanning the bend providing the anti-rotation feature, wherein upon insertion of the device a surgeon would insert the distal end of the device into a distal phalanx bone and pull the joint apart and insert the proximal end of the device into a middle phalanx bone and rotatingly align the two bones and compress the bones together with the 0 degree fin on top as the anti-rotation fins broach the two bones to prevent post op rotation or misalignment.

2. The bone fusing device of claim 1 wherein the bone fusing device is made of an implantable plastic.

3. The bone fusing device of claim 2 wherein the plastic being PEEK.

4. The bone fusing device of claim 2 wherein the plastic being a slightly flexible nylon or polyethylene.

5. The bone fusing device of claim 1 wherein the device is metal.

6. The bone fusing device of claim 5 wherein the device is titanium or stainless steel.

7. A bone fusing device to connect and facilitate fusion between two adjacent phalanges in a body; comprising:

a single elongated body having a first distal end and a second proximal end connected by a middle portion having four radially extending anti-rotation fins, the first distal end being shorter than the second proximal end and the elongated body having an affixed bend at a location in the middle portion, wherein the four anti-rotation fins are oriented at 0 degrees, 90 degrees, 180 degrees and 270 degrees relative to a cross section of the middle portion of the elongated body; and

wherein each end has a rounded generally hemispherical in shape bone entry tip and a plurality of adjacent barbs, the first distal end having a length of 9 mm and a diameter of 3.3 mm or equal to the diameter of the second proximal end, the second proximal end having a length of 16 mm and a diameter of 3.0 mm, each of the barbs has a sloped surface which is semi-spherical for entry into the bone and a sharp surface configured to allow rotation and to prevent extraction once press fit into one of the phalanges, the fins have a first end extending and starting spaced a distance from a last barb at the first distal end, each fin extending past the affixed bend toward the second proximal end to a tapered second end on the middle portion spaced a distance from a last barb at the second proximal end, the fins having a total height of 3.5 mm exhibiting a greater size than the diameters of the first distal and second proximal ends, the fins being configured to engage uncompromised boney tissue to prevent rotation, wherein the bend forms a drop angle θ of 10 degrees relative first and second ends and the drop angle θ aligns with the top or 0 degree and bottom or 180 degree fins, the top fin having a convexity at a maximum height and the bottom having a concavity at the maximum height, the maximum height straddling and extending about the bend wherein the first distal end and the second proximal end are semi-spherical shaped with the anti-rotation fins disposed in the middle portion spanning the bend providing the anti-rotation feature, and wherein upon insertion of the device a surgeon would insert the distal end of the device into a distal phalanx bone and pull the joint apart and insert the proximal end of the device into a middle phalanx bone and rotatingly align the two bones and compress the bones together with the 0 degree fin on top as the anti-rotation fins broach the two bones to prevent post op rotation or misalignment.

8. The bone fusing device of claim 7 wherein the bone fusing device is made of an implantable plastic.

9. The bone fusing device of claim 8 wherein the plastic being PEEK.

10. The bone fusing device of claim 8 wherein the plastic being a slightly flexible nylon or polyethylene.

11. The bone fusing device of claim 7 wherein the device is metal.

12. The bone fusing device of claim 11 wherein the device is titanium or stainless steel.