Self-expanding stent system

Abstract

The invention provides a self-expanding stent system. The self-expanding stent system comprises a control end, an inner tube assembly, a division head and an outer tube assembly; the inner tube assembly comprises an inner tube and a middle tube; the middle tube is arranged outside the inner tube in a sleeving manner; the division head is arranged outside the middle tube; a first stent and a secondstent are respectively arranged at two sides of the division head; the outer tube assembly comprises a first outer tube and a second outer tube; the first outer tube is arranged outside the first stent in a sleeving manner; and the second outer tube is arranged outside the second stent in a sleeving manner. According to the self-expanding stent system provided by the invention, the first stent and the second stent are positioned at the two opposite sides of the division head; the inner tube and the second outer tube are respectively controlled through the control end; the fact that the firststent and the second stent same or different in specification can release at the two opposite sides of the division head can be realized; stents different in specification can be used in a combined manner according to the number and the size of lesions; multiple lesions can be treated; multiple instruments and the multiple implantation condition are avoided; the operation difficulty of an operation is reduced; the operation time is shortened; and the treatment cost is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a self-expanding stent system. Background technique [0002] Lumen stenosis and blockage, atherosclerosis, calcified lesions, and dissections are common tube diseases. Without timely treatment and surgery, it will lead to serious damage to the cardiovascular and cerebrovascular systems, respiratory, digestive, urinary, and endocrine systems, and may be life-threatening if necessary. . The endoluminal stent is an important, even the main treatment tool and means for the treatment of such diseases. [0003] The traditional stent system uses a single long stent compressed in the delivery system, and then delivered to the lesion by the delivery system. The stent system can open the occluded blood vessel to restore the blood vessel lumen and blood flow, and prevent restenosis caused by vasoconstriction. However, in general, the lesions of the arteries of the lower extremiti...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a self-expanding stent system to solve the technical problem in the prior art that only one type of unit stent can be implanted at a time, and unit stents of different specifications need to be implanted multiple times

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