Bracket conveying system

Abstract

The embodiment of the invention discloses a bracket conveying system which comprises a handle, a connecting device, a far-end outer pipe, a safe lock and a central shaft, wherein the handle, the connecting device and the far-end outer pipe are connected in sequence; the central shaft is arranged in the pipe cavities of the far-end outer pipe and the connecting device and penetrate through the handle; the central shaft is used for fixing and supporting a covered stent; the handle comprises a fixing handle and a rotating handle; the fixing handle is connected to the front end of the rotating handle in a sleeving manner; the rotating handle rotates relative to the fixing handle to drive the connecting device and the far-end outer pipe to travel; the safe lock is connected with the fixing handle. According to the bracket conveying system provided by the embodiment of the invention, the covered stent which is conveyed can be accurately released at a focal infection to move backwards independently in the blood vessel through the far-end outer pipe, and can be quickly released, the risk of rupture of blood vessel or aneurysms due to long time occlusion of blood flow by the covered stent can be avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a stent delivery 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. With regard to the development of endovascular treatment technology, the most preferred way for the treatment of aortic diseases is mainly to perform endovascular treatment through minimally invasive intervention into the vascular cavity. [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 blood flow channel. Since the aorta is responsible for the blood supply to mo...

AI Technical Summary

Problems solved by technology

[0005] In the embodiment of the present invention, a stent delivery system is provided to solve the problem that the quick-release delivery system has poor release position accuracy during the delivery of the covered stent to the lesion by the stent delivery system in the prior art, which may easily cause the stent-covered Blocking important branch vessels or causing endoleak and stent migration, the stent delivery system blocking blood flow for a long time may cause the risk of rupture of blood vessels or aneurysms, and even serious impacts such as hemorrhagic stroke caused by excessive cerebral artery pressure life situation etc.

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