Development of extracorporeal shock wave lithotripsy

  Extracorporeal shock wave lithotripsy is a high-tech technology in the 1980s, which is a major event in the medical field in the 20th century, creating a new era of non-surgical treatment of stone disease in the history of human medicine, relieving the pain of hundreds of millions of stone patients and bringing the gospel, Extracorporeal shock wave lithotripsy is a method of treating the urinary system by using the focused energy of shock waves to break up the stones in the body, so that they are discharged with the urine. It is safe, effective, and painless, so it has developed at an astonishing speed, and has been used successfully in clinical trials for just over a decade, all over the world.  In the 1970s, the German Dornier Company as the representative of various research institutions and scholars, high-voltage electric discharge in the water Shen generated shock waves and the physical characteristics of shock waves to study, confirmed that the shock waves can be in the water Shen almost lossless propagation, through the biological soft tissue without significant attenuation. Subsequently, it was found that the use of a metal ellipsoid as a reflector could focus the shock wave, and the focused shock wave had a huge energy instantly and could break the isolated kidney stone, which laid the foundation for the practical lithotripsy technology.  In 1978, Dornier developed a dual X-ray cross-positioning sink type experimental extracorporeal shock wave lithotripter and conducted a series of animal tests to successfully treat human stones transplanted into canine kidneys. This marked a new innovation in the non-surgical treatment of urinary stones and was hailed as “a revolution in the treatment of kidney stones”. The development of extracorporeal shock wave lithotripter has developed rapidly since then, and Dornier developed HM2 machine in May 1980. Since then, extracorporeal shock wave lithotripsy has been promoted to the world at an unprecedented speed, and a lot of human and material resources have been invested in research and development, so that this technology can be continuously developed and perfected.  In China, the Institute of Urology of Beijing Medical University and the Institute of Acoustics of Chinese Academy of Sciences jointly researched this technology in 1982, and the first extracorporeal shock wave lithotripsy machine was successfully developed in October 1984 by the Hospital of Beijing Medical University in cooperation with the Institute of Electrical Engineering of Chinese Academy of Sciences, and the first clinical treatment of boil kidney stones was successful in 1985. In the same year, Beijing and Shanghai also developed lithotripters. The State Science Committee gave full approval to this important achievement and awarded the first prize of National Science and Technology Progress. Subsequently, there are more than a dozen production, scientific research units in the country to produce a variety of extracorporeal shock wave lithotripter to the market, its rapid development was not expected, in October 1990 the state promulgated the industry standard “extracorporeal shock wave lithotripter general technical conditions” (YY0001-90), the standardization of technology, safety Requirements, so that China’s lithotripter production on the road of key Kang development.  China’s lithotripter development started late, but the development is extremely fast, there are many manufacturers of lithotripters, a variety of new lithotripters have been introduced, the technology continues to improve and perfect, because the domestic machine performance to price ratio and after-sales service is greatly superior to imported machines. Therefore, imported lithotripters only accounted for a small proportion, making the localization of lithotripters the first of all large equipment. In terms of clinical application, in early 1987, academician Guo Yinglu of the Institute of Urology of Beijing Medical University proposed the use of prone position to treat middle and lower ureteral stones, so that the lithotripsy treatment was extended to the whole urinary tract. Extracorporeal shock wave lithotripsy not only treats a large number of cases, but also catches up with the international advanced level in treating complex kidney stones and ureteral stones.  The extracorporeal shock wave lithotripter has only been in clinical trials for more than ten years, but it has developed exceptionally fast with its amazing features. Now people are working on how to solve the gallstone intermetastasis and how to develop the use of shock wave to broader fields of boil treatment, such as cancer and bone injury, etc. It is foreseeable that shock wave will achieve more brilliant achievements in the near future.