Intravascular conveying instrument and application thereof

Abstract

The invention relates to the field of medical instruments, in particular to an intravascular conveying instrument and application thereof.The intravascular conveying instrument comprises a conveying catheter 1 and a sheathing canal 2, and the conveying catheter 1 comprises a conveying catheter handle 3, a conveying catheter body 4 and a developing ring 5 which are sequentially connected; the sheathing canal 2 comprises a sheathing canal handle 7 and a sheathing canal body 8 which are integrally connected. Compared with an existing mechanical thrombectomy mode, the intravascular conveying instrument is convenient to operate, safe, reliable and high in success rate.

Description

Technical field[0001]The present invention relates to the field of medical devices, and more particularly, the present invention relates to an intravascular delivery instrument and its applications.Background technique[0002]It is important to have an important significance for the hypervisor of cerebral vascular disease treatment and high disease rate. In recent years, with the development of interventional materials and technologies, the treatment of vascular disease has significantly improved the interciocharging rate, and prolongs the treatment time window, showing good application prospects.[0003]During mechanical ejection and other blood vessels, there is a problem that it is difficult to solve the problem in which the catheter or transport interventional treatment is operated, such as placing a spring ring, balloon or stent, especially in the process of ejecting surgery. Generate a debris kettler to the distal end of the vascular, resulting in a distal blood vessel closure, ca...

AI Technical Summary

Problems solved by technology

[0003] During mechanical thrombectomy and other endovascular interventional procedures, one of the difficult problems is the intravascular manipulation of catheters or delivery of interventional devices, such as coils, balloons or stents, especially during thrombectomy procedures , resulting in debris emboli flowing to the distal end of the blood vessel, resulting in occlusion of the distal blood vessel, causing hidden dangers for the operation or causing pain for the patient to remove the thrombus twice

At the same time, due to the different sizes and tortuous paths of blood vessels in neurovascular, peripheral blood vessels and coronary vascular systems during interventional therapy, it is necessary to cooperate with occlusion balloon catheters, medium catheters, microcatheters, thrombectomy stents, implants or diagnostic instruments, etc. In order to achieve the effect of diagnosis or thrombectomy, but in the actual interventional operation, there is a mismatch between the length or outer diameter of the common interventional catheter and the diseased blood vessel, so that the diseased blood vessel cannot be reached directly to achieve the purpose of treatment and diagnosis. In the process of intravascular delivery, the doctor can only rely on the pushing force of the proximal end of the interventional catheter. Since the distal end of the interventional catheter is relatively soft, when the pushing force is transmitted to the distal end, it is no longer possible for the distal end to pass through various vascular branches or curved blood vessels. Support, which requires a variety of interventional catheters to reach the lesion, and when the distal end of the ordinary delivery catheter does not match the diseased blood vessel, it increases the difficulty of interventional treatment and diagnosis, and prolongs the operation time of the doctor. The effective length of the catheter is not enough to reach the lesion directly, and the replacement of the interventional catheter will cause secondary pain to the patient

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