Catheter device for mechanical thrombectomy of blood vessel

Abstract

The invention provides a catheter device for mechanical thrombectomy of blood vessels. The catheter device comprises a catheter body, and a first balloon is arranged on the outer wall of the far end of the catheter body; a channel used for being communicated with the first balloon is arranged in the catheter wall of the catheter body, and the channel is communicated with external liquid filling equipment. A plurality of second balloons are arranged on the catheter body, cooling liquid circulates in the second balloons through the liquid inlet channel and the liquid outlet channel, the catheter device has the functions of blocking blood vessels and cooling blood in the blood vessels, and the blood vessels can be blocked to prevent thrombus from escaping along with the blood and flowing into the far ends of the blood vessels to cause complications; blood flow can be protected and slowed down through blood cooling, and the purposes of improving the operation success probability and reducing the operation risk are achieved; meanwhile, blocking and blood flow temperature reducing are integrated on the catheter device, the situation that an operator replaces a catheter according to different requirements in the operation process is avoided, operation time is saved, and the situation that the optimal treatment time window is missed is avoided.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a catheter device for mechanical thrombectomy of blood vessels. Background technique [0002] Acute ischemic stroke (acute ischemic stroke, AIS) accounts for about 85% of all strokes, with high morbidity, disability, mortality and recurrence, and the annual death toll reaches 1.5 million in my country alone. For the treatment of patients with acute ischemic occlusion, from arterial thrombolysis, arteriovenous bridging thrombolysis, endovascular angioplasty, to mechanical thrombectomy, the recanalization rate of stenosis and occlusion has been significantly improved compared with before. With the development of material science and the improvement of intravascular operation level, mechanical thrombectomy is a direct means to restore and recanalize diseased blood vessels, and gradually becomes a new technology in the treatment of AIS. At present, mechanical thrombectomy h...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a catheter device for mechanical thrombectomy of blood vessels, which solves the problem of a small amount of thrombus escaping to the distal end of the blood vessel due to mechanical thrombectomy and blood reperfusion after thrombus removal. The problem of postoperative complications caused by damage to blood vessels

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