Patent ID: 6223068
Filing Date: 2001-04-24
Classification: A61B,G21K,Y10S

Abstract:
A radiology instrument comprising a source emitting X-radiation having a focal point, a radiological image receiver, a chassis arranged between the source of X-radiation and the image receiver in order to accommodate an object to be radiographed, and a positioning and guiding means which can be connected to the chassis and can intercept the X-radiation so as to position and guide probes intended to interact with the object wherein the radiation which is emitted by the source and intercepted by the positioning and guiding means is conical, and in that the positioning and guiding means comprises first guide means forming a retractable guide grid having holes whose respective axes converge towards the focal point of the source when the first guide means intercept the conical radiation, and a second positioning means forming a retractable positioning grid with holes, wherein the first guide means includes a perforated grid which also forms the second positioning means, the positions of the positioning holes relative to the chassis when the second positioning means are positioned so as to intercept the conical radiation corresponding to those of the guide holes relative to the chassis when the first guide means are positioned so as to accept the conical radiation, this positional correspondence accounting for the convent nature of the axes of the guide holes.