Patent ID: 6920346

Claim:
Device for pre-operative location of marked tissues, which comprises at least one probe ( 1 ) having an elongated shape and integrating at least two of three types of detection means selected from the group comprised by: at least one means ( 1 ) for the detection of radioactive radiation ( 3 ) emitted by tissues ( 4 ) marked with isotopes or radioactive colloids, generating a corresponding representative electrical signal ( 5 ); at least one optical detection means comprising at least one means ( 6 ) for emitting luminous radiation toward the tissues ( 4 ) and at least one means ( 7 ) for receiving and transmitting luminous radiation ( 8 ) reflected or emitted by fluorescence or luminescence by said tissues ( 4 ) marked by vital colorants toward at least one means for conversion ( 9 ) of said recovered luminous radiation ( 8 ) into a corresponding electrical signal ( 10 ); a means ( 15 ) for detecting magnetization or measuring magnetic susceptibility of the tissues ( 4 ) marked by superparamagnetic substances, generating a corresponding representative electrical signal ( 16 ); and in addition to said at least two types of detection means, means for transmitting or conveying said electrical signals ( 5 , 10 , 16 ) and at least one electronic means ( 11 ) for processing electrical signals ( 5 , 10 , 16 ) conveyed by the last-named means, so as to display, superimpose, inlay and/or edit a reconstituted image ( 12 ), at least partial, of the tissues ( 4 ) marked by said colorants and simultaneously supplying a physically perceptible expression ( 12 ′) of the representative electrical signal ( 5 ) delivered by the detection means ( 2 ) of the radioactive radiation ( 3 ) emitted by the radioactively marked tissues ( 4 ) and/or of the representative electrical signal ( 16 ) delivered by the means ( 15 ) for detecting the magnetization or measuring the magnetic susceptibility of the tissues ( 4 ) marked by superparamagnetic substances.