Conveyor of blood flow guiding device and blood flow guiding device

Abstract

The invention provides a conveyor of a blood flow guiding device. The conveyor comprises a pushing guide wire and a guiding spring of which one end is connected with the left end of the pushing guide wire, the pushing guide wire is further provided with a dual-developing mark, the dual-developing mark comprises a first developing mark which is in contact connection with the guide spring and a second developing mark, the first developing mark and the first developing mark are arranged in a spaced mode, the portion, between the first developing mark and the second developing mark, on the pushing guide wire is further provided with a friction cover, and the friction cover is made from a crylic acid polymer. Through the adoption of the crylic acid polymer to be the material of the friction cover which is a core part of the conveyor of the blood flow guiding device, good adhesive force of the material itself and the pushing guide wire is made use of, loosening, wrinkling or displacement caused by large force of friction generated when the flood flow guiding device is delivered by a microtube are prevented, and the delivery stability and smoothness of the blood flow guiding device in the matched microtube are improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a transporter of a blood flow guiding device and the blood flow guiding device. Background technique [0002] Aneurysms are hemangioma-like protrusions due to abnormal changes in arterial local blood vessels. Most of the main symptoms are caused by subarachnoid hemorrhage caused by rupture of the aneurysm, and the mortality rate is very high. With the aging of the population in our country, more and more patients suffer from aneurysms. If there is no better treatment, the patients may be in danger at any time. [0003] The emergence of coils is an important milestone in the interventional treatment of intracranial aneurysms. With the emergence of various stents and auxiliary balloon technologies, coil embolization technology is becoming more and more perfect, and its efficacy and prognosis have also been fully confirmed. However, coil embolization also has inherent defects. Since...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the deficiencies of the blood flow guiding device in the prior art, and aims to provide a conveyor of the blood flow guiding device and a blood flow guiding device, so as to solve the insufficient adhesion of the core component friction sleeve and the pushing guide wire in the prior art It is firm, and it will loosen, wrinkle or shift when it is subjected to a large friction force during use. At the same time, the accuracy of the size cannot be guaranteed, which makes the blood flow guiding device not smooth enough when passing through the matching microcatheter

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