A holmium laser ultrasonic lithotripsy device

Abstract

The invention discloses a holmium laser ultrasonic lithotripsy device, which comprises a laser instrument, an ultrasonic stone clearing instrument and a negative pressure controller, the laser instrument includes a holmium laser host and an optical fiber, and the ultrasonic stone clearing instrument includes an ultrasonic host and a stone clearing instrument handle , the transducer installed in the handle of the stone clearing instrument, the ultrasonic amplitude-changing probe rod fixed on the transducer and the suction pipeline connected with the negative pressure control instrument; it also includes a guide rod; The first channel; the ultrasonic luffing probe rod is installed in the first channel, and the handle of the stone cleaning instrument is fixed on one end of the guide rod; a stone cleaning channel is formed between the ultrasonic luffing probe rod and the inner wall of the first channel; the guide rod is far away from the stone cleaning One end of the instrument handle is provided with a filter assembly. The present invention crushes stones in the patient's body by using laser and ultrasound together, which avoids the problem that hard stones cannot be crushed or cannot be completely crushed, and improves the efficiency of stone crushing; by setting filter components, it can prevent large stone particles from clogging stone removal Channel, improve the efficiency of stone clearing.

Description

technical field [0001] The invention relates to a stone removal device, in particular to a holmium laser ultrasonic lithotripsy device. Background technique [0002] Urinary system stones are the most common diseases in urology. Most patients need laparoscopic surgery for treatment. The best treatment for kidney stones with a diameter greater than 2 cm and upper ureteral stones is percutaneous nephrolithotomy. Ultrasonic lithotripsy is one of the most common minimally invasive techniques for the treatment of stones. [0003] Ultrasonic in vivo lithotripsy is through the piezoelectric ceramic sheet of the transducer in the ultrasonic in vivo lithotripsy instrument, which generates high-frequency mechanical vibration under the excitation of high-frequency electrical signals, and transmits it to the ultrasonic amplitude-changing probe rod through the transducer, so that the ultrasound can be changed High-frequency vibration occurs on the end face of the probe rod. When the vi...

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Problems solved by technology

[0005] The object of the present invention is to provide a holmium laser ultrasonic lithotripsy device to solve the problem in the prior art that only ultrasonic waves cannot be used to crush some hard stones and the crushed stones are in the process of being discharged. It is easy to block the stone clearing channel, which affects the efficiency of stone removal and increases the operation time.

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