In-cavity torsional vibration ultrasonic lithotriptor

Abstract

The invention discloses an in-cavity torsional vibration ultrasonic lithotripter, which comprises a casing, an ultrasonic transducer, an amplitude-change pole, a water pipe connecting pipe, a negative pressure suction device, an inner catheter, an outer catheter and a step annular frequency regulator, wherein the ultrasonic transducer is accommodated in the casing, the amplitude-change pole is connected with the front end of the ultrasonic transducer, the water pipe connecting pipe is connected with the tail end of the ultrasonic transducer, the negative pressure suction device is connected with the water pipe connecting pipe, the front end of the amplitude-change pole is of a spiral groove structure, the inner catheter and the spiral groove are connected through screw threads, the step annular frequency regulator is connected onto the inner catheter through screw threads, and the outer catheter is connected onto the step annular frequency regulator through screw threads. The high-frequency torsional vibration and the low-frequency ultrasonic vibration are combined to be applied into the stone breaking process, the consumption on a lithotripter tool head can be reduced, the stone breaking efficiency is improved, the impact force and the tissue damage in the stone breaking process are effectively reduced, and the injury to the human body tissue due to ultrasonic cavitation and the like can be effectively avoided.

Description

technical field [0001] The invention relates to a medical device lithotripter, in particular to an ultrasonic lithotripsy device utilizing intracavity torsional vibration. Background technique [0002] With the acceleration of the pace of human life and changes in diet structure, stone diseases have become a common and frequently-occurring disease. In vivo ultrasonic lithotripsy has become the first choice for lithotripsy because it is less harmful to the human body. However, the existing ultrasonic lithotripsy technology has a large impact force, which will cause a certain degree of tissue damage, and the ultrasonic lithotripter has problems such as serious wear of the tool head, low lithotripsy efficiency, and long lithotripsy time. [0003] In the existing technology, in order to shorten the operation time of lithotripsy, reduce the rate of residual stones, and simultaneously deal with the soft tissue cutting and hemostasis during the operation, Liu Jianjun and others ap...

AI Technical Summary

Problems solved by technology

"Handle for ultrasonic lithotripsy" increases the complexity of the device and the cost of the equipment by integrating ultrasonic lithotripsy and laser lithotripsy

"An intracavity ultrasonic lithotripsy device" avoids stone residue residue and damage to surrounding tissues during the process of crushing stones by setting a stone picking component, but the stone picking component has a certain shape and volume, and it cannot be used for different shapes. Stones of different sizes and sizes can be treated

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