Small joint reamer

A reamer for use in creating a convex, curved surface on a bone comprising:

• a first portion comprising a cannulated shaft concentric with a central axis;
• a second portion at an end of the shaft comprising a cutting head of the reamer, said head comprising at least three substantially equally spaced flutes extending outward from the end of the shaft in a curved manner such that their extending ends are unconnected, each said flute having an outer curved surface, an opposite inner concave surface extending from said shaft to said unconnected end, a side cutting surface, an opposite side non-cutting surface, and an end surface at the extending end of the flute, the curved inner surface and the side cutting surface defining a curved cutting edge that extends radially and longitudinally from the head to the unconnected extending ends of the flutes, the inner surface of said flutes together upon rotation defining a concave substantially semi-spherical surface for creating a convex, curved surface on the end of the bone.

A reamer for use in creating a curved surface on a bone surface comprising:

• a first portion comprising a cannulated shaft concentric with a central axis;
• a second portion at an end of the shaft comprising a cutting head of the reamer, said head comprising at least three substantially equally spaced flutes with first and second ends, the first ends connected at the end of the shaft, said flutes extending radially outward and curving longitudinally away from said shaft such that their extended second ends are unconnected, each said flute having an outer curved surface, an opposite inner concave surface extending from the first end to the second end, a side cutting surface, an opposite side non-cutting surface, and an end surface at the second unconnected end, the curved outer surfaces of said flutes together define a substantially convex semi-spherical outer surface.