Patent ID: 7918856

Claim:
A reamer, which comprises: a) a cutting form comprising a wall extending distally and outwardly along a longitudinal axis from a proximal cutting form portion having a first diameter to a distal rim having a second, greater diameter at a rim circumference; b) an axial guide having a guide length extending from a proximal guide end to a distal guide end, wherein the proximal cutting form portion is connected to the distal guide end; c) at least two radial bars, each having a proximal radial bar end attached to the axial guide and distal radial bar end that is not connected to either the axial guide or the cutting form; and d) wherein the rim is provided with a plurality of rim cutting teeth, each of them comprising a cutting face spaced from an immediately adjacent section of the rim in a forward, cutting direction by a relief space and wherein the rim cutting teeth alternate in pitch such that when viewed in the forward, cutting direction, a first one of the rim cutting teeth cuts beyond the outside surface of the cutting form with the next one cutting beyond the inside surface of the cutting form.