Positioning Method of Extracorporeal Shock Wave Lithotripsy Apparatus Using Ultrasound to Position Treatment Point

Abstract

The invention discloses an extracorporeal shock wave lithotripter adopting ultrasonic waves to position treatment points and a positioning method thereof. A B ultrasound machine is mounted, so that accurate judgment for treatment points of the extracorporeal shock wave lithotripter by the B ultrasound machine becomes very difficult. Four ultrasonic transducers of the extracorporeal shock wave lithotripter disclosed by the invention are all fixed on a treatment head, and acoustic axes of the four ultrasonic transducers pass through the focus of the treatment head; the four ultrasonic transducers are connected with transducers cables; the four ultrasonic transducers cables extend out of a housing of the treatment head; one end of a cable lead is connected with a shock wave generation source; the other end of the cable lead extends out of the housing of the treatment head. The stone positioning method disclosed by the invention comprises the following steps: echoes of generated shock waves on a stone are used as a detection signal, and a signal acquisition system is used to process and analyze a received signal, so that the position of the stone and deviation conditions of the treatment points of the extracorporeal shock wave lithotripter are determined, and a basis is provided for adjusting the position of the extracorporeal shock wave lithotripter. According to the invention, the fact that shock waves and echo are spread in the same path is guaranteed and the ultrasonic detection accuracy is improved.

Description

technical field [0001] The invention belongs to the field of medical ultrasonic detection, and in particular relates to a positioning method of an extracorporeal shock wave lithotripsy device using ultrasonic waves to locate treatment points. Background technique [0002] Extracorporeal shock wave lithotripsy is a medical device for crushing stones in the body. The device generates shock waves outside the body and spreads them inside the human body. During the propagation of the shock wave, the energy will continue to converge and finally gather in the focal spot with a diameter of about 1cm, forming a shock wave with a positive peak sound pressure greater than 50MPa and a negative peak sound pressure greater than 2MPa. When encountering a stone located in the focal spot, a powerful force is exerted. Under the repeated action of the shock wave, the stone will eventually shatter and be expelled from the body. [0003] In order to ensure the effectiveness and safety of the c...

AI Technical Summary

Problems solved by technology

Since the B-ultrasound machine and the extracorporeal shock wave lithotripsy are two separate sets of equipment, it is very difficult to install the B-ultrasound machine so that it can accurately determine the treatment point of the extracorporeal shock wave lithotripsy, especially in actual use, because the location of the stones is different , the patient will adopt different body positions for treatment, and the doctor must adjust the position of the B-ultrasound probe, which will lead to a decrease in the positioning accuracy of the device and affect the effectiveness and safety of clinical use

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