DEVICE AND METHOD FOR TESTING WEAR OF ARTIFICIAL JOINT

摘要

PROBLEM TO BE SOLVED: To obtain a device with which wear test of an artificial joint can be performed in operation conditions specific to each portion of a human body using an NC lathe or a machining center; and to propose a method for testing wear of the artificial joint using the device. SOLUTION: The device includes a work shaft side holder attached to the work shaft of a machine tool and a tool shaft side holder attached to a tool shaft. The work shaft holder includes: a table for fixing a sample or a test tray; a guide for guiding the table in the direction along the axis of the work shaft or in the direction perpendicular to the axis when a fixing part is fixed to the work shaft; a height adjuster and a position adjuster which adjusts the position in the direction perpendicular to both the direction and the axis of the work shaft, in order to maintain the spherical center of the sample fixed to the table on the axis of the work shaft; and a sensor which detects force in the straight line direction acting on the table. The tool shaft side holder includes a shaft for attachment to the tool shaft and a receiving stand for fixing the sample or the test tray. COPYRIGHT: (C)2011,JPO&INPIT