Thrombus extraction scaffold

Abstract

The invention discloses a thrombus extraction scaffold. Specifically, the thrombus extraction scaffold comprises a scaffold body and a push rod; the scaffold body is formed by cutting a metal tube, and the cut metal tube is in a shape of helical crossing of a plurality of strands of metal ribs; the metal ribs are gathered to form a first gathering point at the far end of the scaffold body, the near end of the scaffold body is in a diagonal shape, and the metal ribs are gathered to form a second gathering point at the near end of the scaffold body; developing wires are attached to any strand ofthe metal ribs, and the developing wires are attached to the metal ribs; a notch is formed in the second gathering point, the far end of the push rod is provided with an insert matched with the notch, the notch and the insert are assembled and fixed through embedding, and the scaffold body and the push rod are connected to form a whole. The thrombus extraction scaffold is used for mechanically extracting thrombi blocking intracranial vessels when acute ischemic stroke of a patient happens, so that the treatment purposes of revascularization and blood flow recovery are achieved.

Description

technical field [0001] The invention relates to the field of medical instruments, and more particularly relates to a thrombectomy bracket. Background technique [0002] Intravascular thrombosis is a common and frequently-occurring disease in clinical practice, and intracranial thrombosis is the most important. It causes cerebral embolism and has the characteristics of high morbidity, disability, mortality and recurrence. Major diseases causing death and disability in middle-aged and elderly people. With the continuous increase of the elderly population and the improvement of living standards, the incidence of cerebrovascular disease is constantly increasing. According to the survey, there are currently 3 million new cerebral thrombosis groups in my country every year, and the proportion of acute cerebral thrombosis in stroke has also increased from 55.8% to 81.6%, becoming the number one brain disease. [0003] "Cerebral stroke" is also called "stroke" or "cerebrovascular ...

AI Technical Summary

Problems solved by technology

Mechanical thrombectomy includes the following methods: thrombectomy, which is a more thorough method of thrombectomy, but causes too much damage to the vessel wall, and can easily cause various concurrent inflammations; laser thrombectomy, which is difficult to operate, and the laser energy If the energy is too low, it will be ineffective, if the energy is too high, it will damage the blood vessel, and it will also easily cause various complications; the method of grabbing thrombus is easy to operate and causes little damage to the blood vessel wall, but it often cannot catch blood clots; Thrombectomy with thrombectomy, this method is simple to operate, but cannot be used in intracranial vessels due to the large size of the thrombus catcher

[0009] Therefore, there is currently a lack of an effective intracranial thrombectomy support in clinical practice.

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