Stent implantation device

Abstract

The invention discloses a stent implantation device. The stent implantation device comprises a fixed handle and a percussion handle movably installed on the lower portion of the fixed handle; an inner tube, an outer tube and a tube transmission assembly are arranged in the fixed handle, wherein the inner tube is sequentially sleeved with the outer tube and the tube transmission assembly; the near end of the inner tube is fixedly installed in the fixed handle, and the far end of the inner tube extends out of the fixed handle; the inner tube is sleeved with a pointer assembly movably connected with the tube transmission assembly, and the pointer assembly is fixedly connected with the near end of the outer tube; a gear transmission assembly connected with the percussion handle is further arranged in the fixed handle; a gear shifting button is arranged on the fixed handle; the gear transmission assembly is suitable for switching a transmission direction through the gear shifting button; and the pointer assembly is suitable for driving the pipe transmission assembly to move front and back through the gear transmission assembly. The invention effectively solves the problems that a stent must be operated with both hands during a stent implantation operation and the stent release position is inaccurate in the prior art, can shift and adjust at any time, accurately controls the release position, simplifies the operation and improves the treatment effect.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a stent inserter. Background technique [0002] Malignant tumors of the digestive tract can cause severe obstruction in the late course of the disease. According to statistics, 40% of gastric cancer patients and 95% of pancreas patients involving the duodenum cannot undergo radical surgery. At this time, stent treatment is very necessary, and stent treatment is common. And very effective treatment method, surgery through endoscopic stent placement is more common. At present, the traditional stent implanter usually consists of two controllers connected to the inner tube and the outer tube respectively. During the operation, the endoscope is first brought to the pathological stenosis. If the endoscope cannot pass through the stenotic lesion, a zebra guide wire is first passed through. For the narrow segment, insert a plastic sleeve along the guide wire, inject contrast agent, de...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a stent implanter aiming at the deficiencies of the prior art, which solves the problems that both hands must be operated and the release position of the sten

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