Lithotripsy device with double spiral curved surfaces

Abstract

The invention discloses a lithotripsy device with double spiral curved surfaces. The lithotripsy device comprises a handheld stepper gear motor and a drill rod fixed onto the handheld stepper gear motor. The drill rod is fixed onto the handheld stepper motor by the aid of a connector at the tail of the drill rod, a knife tube is arranged in the middle of the drill rod, and the two spiral curved surfaces are arranged in the front of the drill rod; a cavity is arranged inside the knife tube, and the front end of the cavity is connected with the tail ends of the curved surfaces by a drain hole; blades are arranged at the edges of the curved surfaces. The lithotripsy device has the advantages that the handheld stepper gear motor drives the drill rod to rotate, calculis in a patient are ground and crushed by the blades, accordingly, the lithotripsy device is simple in operation, operative risks can be reduced, the lithotripsy cost can be lowered, the operative time can be shortened, the lithotripsy efficiency can be improved, economical burden on the patient can be relieved, and the lithotripsy device is high in economic and social benefits.

Description

technical field [0001] The invention relates to a medical device, in particular to a double helical curved lithotripsy device. Background technique [0002] Hepatolithiasis is a common disease in general surgery, with an incidence rate of about 10%, which leads to serious complications such as cholangitis, pancreatitis, and biliary cirrhosis, especially in combination with acute suppurative obstructive cholangitis, and the mortality rate is as high as 33.6% %. At present, drug treatment is mostly ineffective, and surgical treatment is generally required, such as laparotomy and endoscopic lithotomy. Among them, endoscopic stone removal is suitable for removing stones in the hepatic and bile ducts due to its small trauma and quick recovery. Whether the stones can be removed becomes the key to the operation. However, for larger stones, stone removal and stone crushing are more difficult. [0003] Commonly used lithotripsy techniques include pneumatic lithotripsy, holmium lase...

AI Technical Summary

Problems solved by technology

However, the effect of extracorporeal shock wave lithotripsy on refractory stones and giant stones is not obvious

In addition, kidney stones fall down and often get stuck in the ureter. It is difficult to locate all kinds of stones in the ureter with B-ultrasound, and the shock wave will also damage the kidneys to a certain extent.

[0007] F...

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