OPTICAL-SURGICAL DEVICE FOR DETECTION AND RECOGNITION OF NEUROVASCULAR STRUCTURES IN THE VOLUME OF BIOLOGICAL TISSUE Russian patent published in 2022 - IPC A61B5/00 A61B17/295 A61B34/30 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to optical-surgical devices for detecting and recognizing neurovascular structures in the volume of biological tissue. The device includes a housing with movable and fixed jaws fixed therein, a branch spreading unit and a fiber optic unit. The optical fiber unit includes a radiation source in the form of at least one optical fiber for supplying an optical signal for probing a biological tissue and a radiation receiver in the form of at least one optical fiber for receiving a return signal, made with the possibility of biological tissue spectroscopy. The radiation source and receiver are located in the jaws. The fiber optic unit and jaws are made with the possibility of subsurface contact probing of biological tissue with optical radiation of at least two wavelengths by the method for reflective diffusion spectroscopy. Radiation sources are placed on the working end on one of the branches, and receivers - on the working end on one of the remaining branches. The sources are combined into at least two groups located along separate non-coincident semi-axes directed away from the receiver. Each group of sources consists of at least two subgroups, each of which is designed to provide a signal at least two wavelengths. The sources of each subgroup are located at a distance of no more than 1 mm from each other. In working condition for probing biological tissue with divorced branches, the distance from each subgroup of sources to the corresponding receiver is at least 5 mm.

EFFECT: providing the possibility of probing biological tissue to a maximum depth of at least 5 mm with the identification of neurovascular structures and the possibility of changing the probing depth in the diagnostic process with small dimensions of the opto-surgical device.

12 cl, 11 dwg