| 摘要 |
A means (1) for detection of position changes round a joint, especially the spine. The means comprises a vertebral column unit (4) consisting of a number of separate vertebrae (6) and sleeves (12), and a detection unit (5). The vertebral column unit is held together by a tension spring (18) running through all the vertebrae and sleeves. Furthermore, through the vertebrae (6) run at least one flexible draw bar (18) for taking up bending movements and at least one torsion rod (20) for taking up twisting movements. The detection unit (5) is intended for detection of the position changes of the bars and rods. The means is attached close to a patient's back by a fixing unit (14) along the portion of the back to be subjected to measurement and then the different bending and twisting movements may be detected by means of the detection unit. To the detection unit there is connected a registering unit for registration of the values. The means may also be used as a warning means and in that case a warning unit instead of the registering unit is connected to the detection unit. |
