DEVICE FOR INDICATING A LOCATION WITHIN THE BODY

摘要

A calibration device for use in locating a locus, such as the axis of a bone (10), within a living body comprises a sheet member (1; 62) which is adapted for attachment to the living body adjacent to the locus. The sheet member (1; 62) has at least one cutout portion (5; 69), which permits indexing of the sheet member (1, 62) relative to the living body. The sheet member (1, 62) is provided with a plurality of calibration markers (2; 68), each having a transmittivity for X-rays that contrasts with the transmittivity of the elongate sheet member (1, 62).