Balloon dilatation catheter with thrombus filter

Abstract

The invention discloses a balloon dilatation catheter with a thrombus filter. The balloon dilatation catheter sequentially comprises a thrombus filtering device, a connecting pipe, a balloon, a middlecatheter, a stress pipe and a catheter base from the far end to the near end. When the t balloon dilatation catheter is used, the balloon is stuffed with liquid media, the thrombus filter is extrudedout of a limiting pipe at the same time, the thrombus filter is released, and if plaques are broken and fall off when the balloon is expanded, the plaques can also be captured by the thrombus filtering device at the far end. After expansion is completed, negative pressure is pumped by the catheter to enable the balloon to return, and the negative pressure enables the thrombus filter to retract into the limiting tube, so that the purpose of recovery is achieved. According to the balloon dilatation catheter, the risk caused by plaque falling during balloon dilatation can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a balloon dilation catheter with a thrombus filter for treating intravascular calcification lesions. Background technique [0002] Vascular calcification is one of the most serious stages in the development of cardiovascular disease. The cause of intravascular calcification is the deposition of calcium salts on the inner wall of the blood vessel, resulting in the loss of the intima of the blood vessel and the growth of plaques, resulting in vascular stenosis. 80% of vascular injuries and 90% of patients with arterial diseases are accompanied by vascular calcification. The morbidity and mortality of cardiovascular diseases increase by 3-4 times. [0003] At present, the treatment of vascular calcification uses balloon catheter intervention as the main measure, which not only has less trauma, less pain, but also has good curative effect. However, for some vascular stenoti...

AI Technical Summary

Problems solved by technology

However, for some vascular stenotic lesions with diffuse lesions and severe calcification, conventional balloon dilatation may easily cause large plaques to fall off, and as the blood flows to the smallest end of the blood vessels, embolism occurs, which leads to more severe lesions. serious complications

Regardless of whether it is conventional balloon dilation or cutting balloon dilation, there are such risks

Images