LASER DEVICE FOR PERFORMING ANGIOPLASTIC OPERATIONS Russian patent published in 1998 - IPC

FIELD: medical engineering. SUBSTANCE: device has radiation source and prism for dividing spectrum set along the trajectory of laser beam and the first and the second scanning units mounted behind the prism for dividing spectrum, and multi-fiber catheter having the first, the second and the third group of light-conducting fibers on its proximal end. The first scanning unit is mounted along the line of power radiation and is optically coupled with the first group of multi-fiber catheter light-conducting fibers and the second scanning unit is mounted along the line of diagnostic radiation and is optically coupled with the third group of catheter light- conducting fibers. The device also has the first and the second shutter members mounted between the prism for dividing spectrum and the first and the second scanning unit, respectively, and spectrum analysis unit and photoreceiving unit which output is connected to the first input of the control unit which the first and the second outputs are connected to drives of the first shutter unit and the first scanning unit, respectively. The third and the fourth outputs of the control unit are connected to drives of the second shutter unit and the second scanning unit, respectively. The second group of catheter light-conducting fibers is optically coupled with the spectrum analysis unit. The device also has the first and the second group of light-emitting diodes each of which has at least four light-emitting diodes circumferentially spaced in equal steps. Each group of light-emitting diodes is mounted to receive radiation scattered from end face of each of light-conducting fiber holder belonging to the first and third group of the light-conducting fibers of the proximal catheter end, respectively. Output of every light-emitting diode is connected to the corresponding input of the control unit. The distal catheter end has light-conducting fibers arranged in sectors each of which has at least one light-conducting fiber from each group of fibers of the proximal catheter end. the radiation source is designed as multi-frequency one. EFFECT: enhanced effectiveness in treating atherosclerosis by removing plaques. 20 cl, 16 dwg