Abstract: An effective and highly accurate method for measuring temperature during thermal tumor ablation to increase ablation accuracy installing a fiber optic temperature sensor with a linearly chirped (the variation of the refractive index has a period growing in an algebraic progression) Bragg grating with a length of 1.4-6 cm and a diameter of 80-300 ?m using a catheter directly on the tumor. Through the fiber optic sensor with a length of 1.4-6 cm and a diameter of 80-300 ?m is passed a light spectrum, which undergoes backscatter due to the Bragg grating, dependent on the temperature acting on the sensor. Subsequently, using the backscatter light spectrum decoding software, developed according to the fiber optic cable parameters, the temperature profile is displayed on the computer. The method has applications in medicine, in particular oncology.
Type:
Application
Filed:
April 4, 2017
Publication date:
April 18, 2019
Applicant:
PRIVATE INSTITUTION "NAZARBAYEV UNIVERSITY RESEARCH AND INNOVATION SYSTEM"
Abstract: The microscope for monitoring objects after nano-cutting and for investigating structures of macro- and micro-carriers under low temperature comprises a punch having a cutting edge, drives driving the punch along two axes, a platform rotatable in a plane, a piezo-scanner for recording a sample image along three axes, a holder with a carrier of the sample, and a probe unit to which a probe is fastened. The piezo-scanner is fastened to the platform, the punch is able to interact with the sample, and the probe unit is mounted on the platform so as to be movable along one of the axes. The assembly includes a module for mechanical action on the cutting edge of the punch to modify the cutting surface, which module is fastened to the same platform to which the piezo-scanner with the object carrier and the probe unit are fastened.
Type:
Application
Filed:
July 10, 2015
Publication date:
December 7, 2017
Applicant:
PRIVATE INSTITUTION "NAZARBAYEV UNIVERSITY RESEARCH AND INNOVATION SYSTEM"
Inventors:
Alexander Alekseev, Aleksey Dmitriyevich Volkov, Dmitry Yuryevich Sokolov, Anton Evgeniyevich Efimov