ASSISTING TOOL FOR ARTIFICIAL HIP JOINT REPLACING OPERATION, AND ASSISTING SYSTEM FOR ARTIFICIAL HIP JOINT REPLACING OPERATION

摘要

PROBLEM TO BE SOLVED: To provide an assisting tool for the artificial hip joint replacing operation, and an assisting system for artificial hip joint replacing operation which can keep an artificial acetabular cup more easily set in an ideal setting position of a patient, and also reduce the costs.;SOLUTION: This assisting tool 4 for the artificial hip joint replacing operation is compact so as to be attachable to the acetabular cup of the patient, and also, is formed of a simple constitution. The accurate shape of the acetabular cup HC of the patient at this time can easily and surely be grasped by a joint mirror 3 by making the assisting tool 4 for the artificial hip joint replacing operation attach and hold the already existing joint mirror 3 and an already existing medical drill which are generally used in an operation room. At the same time, the drilling position and the drilling direction of the medical drill can be determined by using first two-dimensional coordinates and second two-dimensional coordinates, and therefore, the acetabular cup HC of the patient can accurately be shaped into an ideal shape without using an expensive and dedicated special device such as a conventional method. Thus, the artificial acetabular cup can more easily be set in the ideal setting position of the patient. Also, the apparatus cost can be reduced as the expensive dedicated special device becomes unnecessary.;COPYRIGHT: (C)2007,JPO&INPIT