Medical stent, medical stent extractor and medical stent extracting method

Abstract

The invention provides a medical stent, a medical stent extractor and a medical stent extracting method. The medical stent comprises a stent body and a plurality of magnetic sheets adhered on the inner wall of the stent body, and the stent body can shrink through the magnetic sheets under attraction of a magnet. The medical stent extractor comprises a balloon, an inner pipe, a magnet and a magnet controller, the balloon is of a double-layer structure comprising an outer sleeve layer and an inner sleeve layer, the balloon comprises a balloon head, a balloon neck and a balloon opening, an annular cavity between the inner sleeve layer and the outer sleeve layer of the balloon can be filled with gas, liquid or bubbly media through the balloon opening, so that the balloon head is expanded, the inner pipe penetrates the inner cavity of the inner sleeve layer of the balloon, the magnet is arranged on the inner pipe and corresponds to the balloon head, and the magnet controller supplies power for the magnet through a lead connected in the inner pipe in a penetrating manner. Compared with the prior art, the medical stent extracting method is more convenient and reliable, a pipe wall cannot be stimulated or damaged, and time and labor are saved.

Description

technical field [0001] The invention relates to a medical bracket, in particular to a medical bracket, a medical bracket extractor and an extraction method. Background technique [0002] With the development of society, health has become an issue of increasing concern to people. Faced with the threat of luminal diseases, medical stents have become an indispensable device and played a vital role. During the treatment of luminal diseases, medical stents made of stainless steel or nickel-titanium alloy without or with a recovery device are generally implanted into the lesion in the lumen through the original in vivo channel, so as to effectively treat the stenosis. Relieve the obstruction, block the fistula, and improve the quality of life of the patient. [0003] The placement and removal of the medical stent is performed with the help of an endoscope or an X-ray machine. The following problems exist when the medical stent is taken out: the medical stent without a recovery de...

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Problems solved by technology

[0004] One of the purposes of the present invention is to provide a medical bracket to solve the problems that the existing medical bracket with a recovery device is easy to cause damage to the pipeline wall and the extraction operation is complicated when it is taken out.

[0005] The second object of the present invention is to provide a medical stent extractor to solve the problems of time-consuming and labor-intensive operation and easy damage to the pipeline wall when using the existing medical stent extraction tool to take out the medical stent

[0006] The third purpose of the present invention is to provide a method for taking out a medical stent, so as to solve the problems that the existing method of taking out a medical stent by hooking is time-consuming and labor-intensive and is easy to cause damage to the pipeline wall

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