Abstract: A shock wave generating unit includes a housing and a disk in the housing. The disk includes a vibration plate, which corresponds to a shock wave transmission member covering a first opening of the housing and includes an insulating thin elastic plate and a thin metal plate. The insulating thin elastic plate, with one side corresponding to the shock wave transmission member and the opposite side provided with the thin metal plate, has a hollow portion for partially exposing the thin metal plate and forms an accommodating cavity together with the exposed portion of the thin metal plate and the shock wave transmission member. A shock wave transmission medium can circulate through the accommodating cavity via a channel in the housing and is in contact with the exposed portion of the thin metal plate to facilitate dissipation of the heat generated by the disk during operation.

Abstract: A calculus targeting system for performing a calculus targeting method includes a processor, a storage unit, a calculus coordinate acquisition module, a model establishing module, a prediction module, a firing determination module, and a shock wave module, all the latter six of which are connected to the processor. The calculus targeting method can be programmed as a computer program product and essentially includes a sampling step for acquiring different sets of calculus coordinates in a sampled respiration cycle, a model establishing step for establishing a prediction model, and a firing determination step for determining according to the prediction model whether to fire or not.

Abstract: A shockwave probe transducer structure includes a shock cup, a magnetic disc and a focusing module. The focusing module includes a circular cover and a focusing member installed between the circular cover and the shock cup. The focusing member is consisted of a focusing bag or a lens and a focusing bag closely coupled to each other. The focal point of the shockwave of the shockwave probe transducer structure can be changed by simply changing the focusing module installed at the front of the shockwave probe transducer structure, so as to overcome the problems of complicated changing procedure and possible water leakage and avoid the risk of damaging an expensive shockwave system or jeopardizing the safety of people.

Abstract: A method for determining variations among multiple three-dimensional stone images extracorporeally and a computer program product using the method are disclosed. The method involves during a lithotripsy process performed on a human body, multiple three-dimensional stone images taken from a stone location in the human body are processed outside the human body using the following steps: using a processing unit to execute a computing process for the multiple three-dimensional stone images one by one in an order from the first taken said image to the last taken said image, wherein the computing process involves using an entropy texture equation or an inverse difference moment (IDM) texture equation to calculate a texture feature value for each said three-dimensional stone image; and when the texture feature values calculated using the entropy texture equation or the inverse difference moment (IDM) texture equation substantively stop changing, making the processing unit output a prompt signal.