Stone extractor for hepatobiliary surgery

Abstract

The invention discloses a stone extractor for hepatobiliary surgery. According to the technical scheme, the stone extractor is characterized by comprising a stone extractor body, the stone extractor body comprises a stone extracting tube, a first arc-shaped clamp, a second arc-shaped clamp, a control part, a first handle and a second handle. The length direction of the stone extracting tube and the length directions of the first arc-shaped clamp and the second arc-shaped clamp are arranged in an L-shaped structure; a plurality of first extension rods are hinged to the first arc-shaped clamp; aplurality of second extension rods are hinged to the second arc-shaped clamp; a first gap is formed between every two adjacent first extension rods; a second gap is formed between every two adjacentsecond extension rods; a pull rope is arranged in the stone extracting tube, one end of the pull rope is fixedly connected with the inner side walls of all the first extending rods and the second extending rods through a plurality of split ropes, reset devices are arranged between the first extending rod and the first arc-shaped clamp and between the second extending rod and the second arc-shapedclamp, and the stone extracting device can grab stone in the biliary tract conveniently and accurately.

Description

technical field [0001] The invention relates to the technical field of medical instruments, more specifically, it relates to a stone removal tool for hepatobiliary surgery. Background technique [0002] Due to poor personal living habits, solid lumps, that is, stones, will form in the catheter lumen in the human body or in the lumen of the luminal organs. Stones can cause luminal obstruction, affect the drainage of fluid from the affected organs, and cause symptoms such as pain, bleeding, or secondary infection. [0003] Existing medical solutions vary according to different parts of the calculi. The treatment plan for the same part of the calculus should be determined comprehensively based on factors such as the size of the patient's calculus and the patient's physical condition. The whole is divided into lithotripsy and lithotripsy. Lithotripsy is generally divided into sonic lithotripsy and laser lithotripsy. Sonic lithotripsy is safer and more convenient, but when the s...

AI Technical Summary

Problems solved by technology

The whole is divided into lithotripsy and lithotripsy. Lithotripsy is generally divided into sonic lithotripsy and laser lithotripsy. Sonic lithotripsy is safer and more convenient, but when the stones are too large, sonic lithotripsy cannot achieve good therapeutic effect. Lithotripsy is not suitable for patients with biliary tract stones. Laser lithotripsy is performed by holmium laser lithotripsy. Holmium laser has the disadvantage of low precision and requires multiple lithotripsy operations. Another treatment method is minimally invasive stone extraction. With a small mouth, insert the stone extraction tool for stone extraction. This method has the advantages of slight trauma, less bleeding, low complications, saving operation funds, and easy-to-master operation skills.

[0004] The existing stone removal method is to remove stones from the biliary tract through a stone removal basket. In minimally invasive surgery, when the stone is large, it is necessary to insert a stone removal mesh basket that can be stretched to form a larger grasping space. For irregular stones, more It is necessary to adjust the angle of the stone extraction basket for a second time, and it is necessary to stretch the stone extraction basket as far as possible before grabbing, resulting in cumbersome operations, and even frequent stone extraction failures.

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