Systems and methods for providing a bone milling device

摘要

A milling tool system for accurately preparing a portion of the tibia preparatory to making femoral resections. The milling tool system provides a minimally invasive procedure to provide an aperture within an exposed surface of the tibia, the aperture then being used as a referencing surface to accurately resect the femur. Once the femur resections have been made, the remaining uncut portions of the tibia are exposed and easily accessible for the tibial resections.

主权项

1. A cannulated milling assembly for cutting an aperture in a bone, the assembly comprising:
a milling tool member having a cutting head portion and a shank portion, the cutting head portion having a cutting surface disposed at a first end of the shank portion, the shank portion having a cavity with an opening, the cavity extending along a length of the shank portion, the opening being in fluid communication with the cutting head portion and the cutting surface, and the shank portion having a coupling surface at a second end of the shank portion; and a guide rod having a first portion and a second portion, the first portion being configured to be inserted into the bone so that a part of the second portion extends outwardly from the bone, the second portion being configured to be rotatably inserted within the cavity of the milling tool member, wherein the milling tool member is configured to be rotatable relative to the guide rod so as to be movable into the bone along a longitudinal axis of both the first portion and the second portion of the guide rod to cut the aperture, wherein the longitudinal axis of the guide rod passing through the first portion and the second portion of the guide rod is substantially straight, and wherein the first portion and the second portion of the guide rod are configured to selectively couple to and decouple from each other.