Patent ID: 7780350
Filing Date: 2010-08-24
Classification: A61B,G05B

Abstract:
1. A device for detecting incorrect positioning between a first element and a second element, comprising: a unit for emitting electromagnetic waves suited to pass through human tissues, said unit for emitting electromagnetic waves being designed to be joined to the first element; and a unit for receiving electromagnetic waves and for digital processing designed to be joined to the second element, and cooperating with the unit for emitting electromagnetic waves to detect incorrect positioning of the first element relative to the second element, wherein the unit for emitting electromagnetic waves comprises a number N of electromagnetic emitters positioned in approximately the same plane, where N is an integer greater than or equal to 3, and a control unit configured to have each of these N electromagnetic emitters emit a respective electromagnetic signal, said electromagnetic signal corresponding to a modulated directional electromagnetic field according to a frame having a binary pattern specific to said emitter and enabling the unit for reception of electromagnetic waves to identify the electromagnetic signals coming respectively from each of the electromagnetic emitters by signal processing.