Multifunctional balloon dilatation catheter

Abstract

The invention relates to a multifunctional balloon dilatation catheter. The multifunctional balloon dilatation catheter comprises an inner catheter body, an outer catheter and a dilatation balloon, wherein a wire guide channel is formed in the inner catheter body, the outer catheter body and the inner catheter body are coaxially arranged, and the dilatation balloon is fixed to the outer catheter body. The multifunctional balloon dilatation catheter further comprises plugging balloons fixed to the outer catheter body, the plugging balloons and the dilatation balloon are arranged at intervals, a low-pressure transmitting channel, a high-pressure transmitting channel and a sucking channel are formed between the outer catheter body and the inner catheter body in the radial direction, and the outlet ends of the low-pressure transmitting channel, the high-pressure transmitting channel, the sucking channel and the wire guide channel are provided with Ruhr connectors respectively. By means of the multifunctional balloon dilatation catheter, small plaque falling from a lesion site is trapped in closed space formed by the plugging balloons, the dilatation balloon and the blood vessel wall and pumped away in time while balloon dilatation is carried out in a PCI operation; in the operation process, balloon dilatation and thrombus aspiration are completed at a time under the condition that devices are not needed to be replaced, the number of times of medical instrument exchange in the body of a patient is decreased, and therefore complications caused by blood injures of the patient are reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, more specifically, to a balloon dilation catheter for treating blood vessel stenosis. Background technique [0002] Ischemic vascular disease is a killer that seriously threatens human life and health. It has the characteristics of "high morbidity, high disability, high mortality, high recurrence rate, and many complications", that is, "four highs and one high". Sclerosis is one of the most common vascular diseases. [0003] At present, for how to treat atherosclerotic diseases, PTA or PTCA surgery has long been widely used clinically by doctors at home and abroad. For the balloon dilation catheter used in PTA or PTCA, many patents at home and abroad have described its structure and function. However, with the accumulation of clinical experience, it has been recognized in medicine that balloon expansion may cause small plaques falling from the lesion to fall into blood vessels and cause...

AI Technical Summary

Problems solved by technology

However, there are still some problems in this method. On the one hand, it takes a certain amount of time from withdrawing the balloon to sending the thrombus suction catheter into the body for suction. During this period, the thrombus may have flowed to the distal end of the blood vessel with the blood, thereby increasing stroke risk

On the other hand, clinical experience shows that the more similar medical devices are exchanged in the patient's body, the easier it is to cause blood vessel damage in the patient, resulting in complications such as bleeding or ischemia.

Images