Comparative experimental assessment of the accuracy of nanosecond laser surgery of the oral cavity when the instrument is moved by a robotic complex and a surgeon

Abstract

Аim -to compare the constancy of maintaining the size of the air gap in standard surgical incisions of the oral mucosa using a diode laser performed by a manipulation robot and by the hand of a surgeon. Material and Methods -A manipulative robotic mechanism coupled with a medical instrument -a semiconductor laser with a nanosecond pulsed pumping driver with a wavelength of λ = 1260 μm was used for the study. A comparative tool for simulating manual movement was a working organ with a nozzle for holding in surgeon's hand. The study was conducted on three typical trajectories: linear, semilunar and scalloped. The point coordinates were obtained by scanning the position of the reflector of the coordinate measuring machine in 100 passes with the calculation of the value of the standard deviation of the various measured quantities. Results -it was estimated that the magnitude of the spread of the air gap on typical trajectories between the laser tip and the treated biological tissue perfofmed by the robot is on the average 7 times less (p<0.05) compared to manual movements. Conclusion -The results showed that the use of robotic laser complexes in medicine would significantly improve the accuracy of the medical laser movement maintaining a constant fixed distance between the laser instrument and the mucosa in a range of up to 1 mm.Keywords: biomedical laser technology, laser robotic surgery, nanosecond pulsed laser, coordinate measuring machines Cite as Chunikhin AA, Bazikyan EA, Poduraev YuV, Vorotnikov AA, Klimov DD. Comparative experimental assessment of the accuracy of nanosecond laser surgery of the oral cavity when the instrument is moved by a robotic complex and a surgeon.

Evaluation of surgical laser optical feedback on uneven surfaces using robotic manipulator

“…Nowadays various researchers are trying to combine lasers with robots to improve the perform of medical operations [17][18][19]. Since robots have such important advantages compared to manual methods, that can improve the quality of laser processing such as the accuracy of the cutting trajectory [7], maintaining the required cutting velocity [2,3] repeatability [4] and maintaining the required distance from the fiber tip to operated tissue [5].…”

Influence of Permanent Magnets Installation Approach on the Torque of а Magneto-Rheological Disk Brake

“…To improve the quality of patient treatment in modern medical practice, innovative robotic medical systems [1][2][3] and interfaces [4] for interacting with them have been developed for a long time. The researches are being actively conducted to determine the advantages of operating such systems [5][6][7][8]. The development of robotic medical systems is very time-consuming.…”