Vascular recanalization system for cardiovascular stenosis lesions

Abstract

The invention relates to a vascular recanalization system for cardiovascular stenosis lesions. The vascular recanalization system comprises a balloon, an energy generation controller and a catheter. The catheter comprises a main body tube, one end of the catheter is connected with the energy generation controller, and the main body tube at the other end of the catheter is connected with one end ofthe balloon; wherein the balloon mainly comprises a balloon main body, an inner tube and an electrode pair, and the inner tube is arranged in the balloon main body; and the energy generation controller can send out and regulate a vibration signal with a specific frequency to enable the electrode pair to generate a vibration wave. The system further has a drug delivery function, can inhibit increase of endovascular membranes after recanalization and avoid restenosis after recanalization, thereby achieving the function of long-term treatment of stenotic lesions. For many vascular diseases needing to be implanted with stents, the purpose of achieving long-term patency rate without stent implantation is achieved, and therefore real intervention implantation-free is achieved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a blood vessel recanalization system for cardiovascular stenosis. Background technique [0002] Cardiovascular stenosis refers to human arteriovenous blood vessels, including coronary arteries, peripheral blood vessels, and intracranial blood vessels. Due to abnormal lipid metabolism, lipids in the blood are deposited on the smooth intima of blood vessels, and gradually accumulate into atherosclerosis. Lipid plaques, as time goes by, these plaques increase or even calcify, causing narrowing of the blood vessel lumen, blocking blood flow, leading to downstream blood vessel and body ischemia, and corresponding clinical manifestations. If the stenosis occurs in the coronary artery, it will cause palpitations, chest pain, dyspnea, and angina pectoris. In severe cases, it will lead to myocardial insufficiency or myocardial necrosis; if it occurs in the periphery, it will cau...

AI Technical Summary

Problems solved by technology

However, there are still many problems with this technology. For lesions with severe calcification, sometimes 10 to 15 atmospheres of pressure are required to pre-expand the blood vessels, and sometimes even 30 atmospheres of pressure are required. The result of such high pressure will inevitably cause the calcified plaque to decompress the stress. Transfer to the inner wall of the blood vessel, causing blood vessel damage, and in severe cases, causing blood vessel dissection or perforation

In addition, for lesions that have been successfully implanted with stents, clinical studies have shown that the long-term restenosis rate remains high, because the stent is a foreign substance, and the continuous stimulation of the vascular intima will lead to intimal hyperplasia, which in turn causes Vascular restenosis occurs

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