초록 ▼

A bone plug removal and emplacement tool includes a cylindrical cutting element having a proximal cutting edge and a cutting tooth. The outer surface of the cutting element can include an integral shoulder (e.g., in lieu of a replaceable outer sheath) that is spaced-apart from the proximal cutting e

A bone plug removal and emplacement tool includes a cylindrical cutting element having a proximal cutting edge and a cutting tooth. The outer surface of the cutting element can include an integral shoulder (e.g., in lieu of a replaceable outer sheath) that is spaced-apart from the proximal cutting edge and that engages the surface of the bone to define a depth stop for the cutting edge. An additional cylindrical element can be disposed within the cutting element. The proximal end of that additional element, which is referred to as a "harvester," is substantially aligned with the proximal end of the cutting element to receive a plug cut from the bone. The harvester can be slidably withdrawn from the cutting element to facilitate transplating the bone plug at another location. For this purpose, a stem or plunger can be slidably inserted and moved in the harvester to dislodge the plug.

대표청구항 ▼

[ What is claimed is:] [1.] A surgical assembly comprising a bone plug removal tool including:a cylindrical cutting element having an internal surface defining an internal bore extending along a longitudinal axis of the cutting element from a proximal end;a first cutting edge located at the proximal

[ What is claimed is:] [1.] A surgical assembly comprising a bone plug removal tool including:a cylindrical cutting element having an internal surface defining an internal bore extending along a longitudinal axis of the cutting element from a proximal end;a first cutting edge located at the proximal end of the cutting element for cutting a plug of bone as the cutting element is driven into a bone;at least one cutting tooth located substantially at the proximal end of the cutting element and extending into the internal bore of the cutting element in a direction that is substantially orthogonal to the longitudinal axis of the cylindrical cutting element; andthe cutting tooth being defined by at least two planar and parallel surfaces extending substantially orthogonal to the longitudinal axis of the cutting element so as to form a second cutting edge for undercutting the bone plug when the first cutting edge is rotated inside the bone.