Conveying system and coated system

Abstract

The invention provides a conveying system and a coated system, and relates to the technical field of medical treatment equipment. The conveying system comprises a first wire guiding cavity, a second wire guiding cavity and a supporting component, the included angle between a body stent and a branched stent can be guided through the first wire guiding cavity and the second wire guiding cavity to adapt to the included angle between the aorta and the branched blood vessel, and therefore the body stent and the branched stent can be accurately controlled to be conveyed to a correct diseased position. The coated system comprises the body stent, the branched stent, a fixed component, a second control component and the conveying system. Through the conveying system, the body stent and the branched stent are conveyed to the aorta and the branched blood vessel, the technical problems that in the prior art, no branched coated stent exists, in an operation for the branched blood vessel, difficulty is high, operation time is long, and the requirements for drifting away from the branched blood vessel to enter from the far end of branched positions can not be met are solved, and the technical effects that release is controlled, operation risks are reduced, the success rate of the operation is increased, and the safety of patients is guaranteed are achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a delivery system and a film covering system. Background technique [0002] With the improvement of living standards and the trend of population aging in my country, the incidence of aortic disease is getting worse. At the same time, with the rapid development of industry and high-speed transportation, the incidence of traumatic aortic aneurysm is also increasing. The traditional treatment of aortic aneurysm is aortic aneurysm resection and artificial vascular removal. Due to the high surgical risk, some patients are not suitable for this type of surgery. The advent of endovascular surgery technology provides the possibility of treatment for this patient. [0003] In the prior art, the most important method for endovascular treatment of aortic disease is to place a covered stent at the lesion, and the covered stent isolates the blood vessels at the lesion and rebuilds the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a delivery system and a covering system to solve the problems in the prior art that the branch-type covered stent cannot be realized and the operation on branch vessels is difficult, the operation time is long, and it cannot be applied to free stents. Technical issues at the branch of the distal approach to the branching vessel

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