Microtubule assembly for coronary chronic total occlusion

Abstract

The invention discloses a microtubule assembly for coronary chronic total occlusion. The microtubule assembly for coronary chronic total occlusion comprises a microtubule body, a plurality of guide wires, a plurality of balloons and inflating pipelines of the balloons, wherein the specifications of the guide wires are different; the specifications of the balloons are different; each guide wire isdetachably and movably arranged in the microtubule body in a penetrating manner; each guide wire is located along the microtubule body in a stepping manner under the state that the guide wire is in the microtubule body; the balloons are detachably and movably arranged in the microtubule body in a penetrating manner, and each balloon is arranged along the microtubule body in a sliding manner underthe state that the balloon is located in the microtubule body; each balloon also communicates with the outer part of the microtubule body through the corresponding inflating pipe. The microtubule assembly for chronic total occlusion disclosed by the invention has the advantage that after wrongly entering a false lumen, the guide wire is easy to return to a true lumen; when the microtubule assemblyfor coronary chronic total occlusion is used for puncturing, microtubule assembly cannot be inserted deeply, and the situation that when a fiber cap is punctured, the blood vessel is punctured off isavoided; and the balloons are arranged, so that during operation, an appropriate balloon can be flexibly selected for use.

Description

technical field [0001] The invention relates to a medical device for chronic total occlusion of coronary artery, in particular to a microcatheter assembly for chronic total occlusion of coronary artery. Background technique [0002] Coronary artery chronic total occlusion (CTO) refers to the complete occlusion of the original coronary artery, the TIMI blood flow is 0 grade confirmed by coronary angiography, and the occlusion time is greater than or equal to 3 months. CTO is recognized as a difficulty in percutaneous coronary intervention (PCI), and was once a contraindication for PCI. However, PCI physicians have continued to try CTO for more than 30 years. In the past 10 years, with the development of technology, thanks to the improvement of guide wire passing technology, the use of new instruments and the deepening of understanding of pathological anatomy, the field of CTO PCI has made great progress. Great progress. [0003] Modern studies have confirmed that opening co...

AI Technical Summary

Problems solved by technology

However, the existing CTO PCI operations are performed manually by doctors in the environment of contrast and radiation. The patient's tolerance time is limited, and the uncertainty of the operation is high. Multiple operation failures will cause the patient to receive a large amount of radiation, and it is easy to cause The operation failed, so the existing technology is flawed and needs to be improved

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