Direction adjusting device for measuring vibration of medical device, system, and method

The invention relates to a direction adjusting device for measuring the vibration of a medical device in a static magnetic field and a time-varying gradient magnetic field. The direction adjusting device comprises a support device, and an elastic restraint device arranged on the support device, the support device includes three independent rotation planes, the three independent rotation planes can drive a measured medical device to rotate around three orthogonal directions as the axes in the space, and the elastic restraint device is used for fixing the measured medical device so that the measured medical device is restrained in the same rotation plane of the support device. The invention also relates to a test system and a test method by employing the direction adjusting device. According to the test system and the test method, the safety of mechanical vibration in the static magnetic field and the time-varying gradient magnetic field of the implanted medical device can be tested in advance, and the damage to users and the implanted medical device due to vibration during the usage of the implanted medical device in the static magnetic field and the time-varying gradient magnetic field is effectively prevented.