Compared with the commonly used extracorporeal shock wave lithotripsy and pneumatic ballistic lithotripsy, Holmium laser lithotripsy has strong safety and wide applicability. Extracorporeal shock wave lithotripsy uses electro-hydraulic or electromagnetic shock wave generator to send out high-energy shock wave, penetrate human body, focus on urinary calculi in vivo, release energy to crush stones, and naturally discharge stone fragments. The machine needs accurate positioning by X-ray or B-ultrasound, and the application of Holmium laser makes the treatment of urinary calculi take a new step. Holmium laser wavelength μ,. Nonmembranous nephrolithotomy, such as non-pulsed carbon dioxide laser, uses thermal effect to vaporize stones due to temperature. Crushing stones under direct vision may be incomplete and inefficient at one time. Shock waves can also cause tissue damage when penetrating the body, such as the destruction of glomeruli and renal tubules and ureteral stricture. Repeated extracorporeal shock wave lithotripsy will lead to decreased renal function and even renal atrophy. When pneumatic ballistic lithotripsy is used to treat middle and lower ureteral calculi, it is easy for stones to rush back to the upper ureter or kidney, which makes the operation lose its goal. Moreover, it can only be performed under rigid ureteroscope, so it has little effect on upper ureteral calculi and kidney calculi. Holmium laser, on the other hand, is not the case. In the process of breaking stones, stones rarely run away and the recoil rate is very low, so the efficiency is greatly improved. It can be directly lithotripsy by cystoscope, ureteroscope and percutaneous nephroscope, and will not cause tissue damage. Moreover, Holmium laser fiber is flexible, which can be introduced not only through rigid ureteroscope, but also through flexible ureteroscope for lithotripsy. Therefore, it can effectively crush ureteral calculi and any part of kidney calculi. Holmium laser treatment of bladder stones is a piece of cake. As long as the holmium laser fiber is introduced through the working channel of cystoscope and then the laser is emitted. After a few seconds, the stone is crushed and discharged through the urethra, which is safe and time-saving.
The success rate of holmium laser lithotripsy under endoscope is over 95%
Treatment of bladder stones can reach 100%. This operation has no risk of perforation and bleeding, and can also treat urinary tract tumors, ureteral polyps and membranous nephropathy. The average operation time was 25 minutes, and the hospitalization time was less than 3 days. The treatment of bladder stones can be carried out in outpatient department. Because the particles of Holmium laser lithotripsy are finer and powdery, the stone extraction time is obviously shortened.
It can be seen that Holmium laser can treat urinary calculi in any part and any composition with its unique high-efficiency lithotripsy for membranous nephropathy. It is a "new weapon" with high efficiency, safety, low consumption, time saving and extremely low side effects in the treatment of urinary calculi.
The application technology of Holmium laser in China has also made great progress in the past two years. Its performance and reliability are not inferior to those of foreign products, breaking the situation of high-priced monopoly in foreign countries and making ordinary patients really afford this high-tech technology.
Several domestic companies have been making holmium laser, which has good cost performance, safety and stability.