BD8828 Ⅰ型体外震波碎石机是目前国内应用较多的机种之一,碎石病人勿须麻醉,可以免除水浴的烦恼,并可避免 X 射线损害。其主要缺点是维护保养繁琐。通过工作实践,我们进行了以下几个方面的改进。一、改革水囊上压板水囊上压板用26个六角螺钉固定,全部卸下,费时费事,且螺钉螺母易损坏。我们将水囊上压板从中间横向45°角断开,每次保养只须打开发射杯侧的一半即可(如图1所示)。 BD8828 type I extracorporeal shock wave lithotripter is one of the most widely used models in our country. Patients without gravel need to be anesthetized, which can avoid the trouble of water bath and avoid X-ray damage. The main disadvantage is the cumbersome maintenance. Through working practices, we conducted the following improvements. First, the reform of the water sac on the pressure plate on the water bag with 26 hexagonal screws, all unloaded, time-consuming and cumbersome, and the screw nut is easily damaged. We split the water bag upper platen at a 45 ° angle from the middle, and for each care we just have to open half the side of the cup (as shown in Figure 1).