FLUORESCENT NAVIGATION DEVICE FOR NEUROSURGERY Russian patent published in 2018 - IPC A61B6/00 G01N21/64 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to fluorescent navigation devices using photosensitizers. Module comprises a white light source and a monochromatic radiation source stimulating fluorescence of the photosensitizer at a wavelength of 638 nm, fiber-optic device for delivering radiation to the portion under study, means for recording back scattered radiation and fluorescent radiation of the portion under study, comprising an optical video adapter, monochrome video camera, color video camera, as well as a data processing unit, wherein the white light source is conjugated to a first input of the fiber-optic device for delivering radiation through a light filter cutting off the long wavelength part of a red portion spectrum of visible range, monochromatic radiation source is conjugated to a second input of the fiber-optic device for delivering radiation through a device for filtering and increasing the numerical aperture of an outgoing radiation beam, input of the optical video adapter is connected to the optical output of the microscope, and the monochrome video camera and color video camera are connected to the outputs of the optical video adapter, the digital outputs of the monochrome video camera and color video camera are connected to the data processing unit, optical video adapter is configured to transmit fluorescent radiation to the monochrome video camera in front of there is a light filter transmitting a long wavelength component above 650 nm and diffuse reflected radiation – to the color video camera in front of which there is a light filter transmitting a short wavelength component below 625 nm, output of the fiber-optic device for delivering radiation is mounted close to the microscope objective and fixed to the optical video adapter by means of a fixing member.

EFFECT: use of the module provides increased sensitivity of optical fluorescent intraoperative navigation.

21 cl, 4 dwg