Stone removal tool for hepatobiliary surgery

Abstract

The invention discloses a stone removal tool for hepatobiliary surgery. The key point of the technical solution is to include a stone removal tool body, which includes a stone removal tube, a first arc-shaped clamp and a second arc-shaped clamp, a control part, and a first handle. And the second handle, the length direction of the stone-taking pipe and the length direction of the first arc clamp and the second arc clamp are arranged in an L-shaped structure, and the first arc clamp is hinged with several first extension rods, and the second arc clamp A plurality of second extension rods are hinged on the top, a first gap is provided between two adjacent first extension rods, a second gap is provided between two adjacent second extension rods, and a pull rope is arranged inside the stone retrieval pipe, and one end of the pull rope A number of forked ropes are fixedly connected to the inner sidewalls of all the first extension rods and the second extension rods, and are arranged between the first extension rod and the first arc clip, and between the second extension rod and the second arc clip Equipped with a repositioning device, the stone removal device can conveniently and accurately grab stones in the biliary tract.

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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