Thrombus aspiration device and using method thereof

Abstract

The invention relates to thrombus aspiration device, which comprises a catheter assembly and a guide wire assembly, and the catheter assembly comprises an outer catheter, an inner catheter, a supporting net and a catheter handle. The guide wire assembly comprises an outer guide wire, an inner guide wire, a net basket and a guide wire handle. According to the using method of the thrombus aspirationdevice, the catheter assembly slowly penetrates into a blood vessel, the supporting net reaches the thrombus in the blood vessel, and a catheter push handle is pushed to start the supporting net. Then the guide wire assembly slowly penetrates into a catheter inner core from a guide wire interface till a soft head penetrates through thrombus, the net basket integrally penetrates through thrombus and reaches the other side of thrombus, and then the guide wire push handle is pushed to start the net basket. Finally, the guide wire assembly is slowly pulled towards the outside of the catheter assembly, the net basket drives the thrombus to move towards the supporting net, and at the moment, the thrombus is sucked outwards through an injector to be sucked into the catheter inner core and then enters the injector.

Description

technical field [0001] The present invention relates to a thrombus suction device and its use method, which can be used to treat coronary artery, peripheral artery, pulmonary artery, and all venous thrombus. Background technique [0002] For patients with acute myocardial infarction, timely and effective treatment is the most critical; about one-third of patients die in the acute phase. Current technology has some limitations that can cause unstable performance and effects. All current thrombectomy catheters have an end or side hole design that functions like a straw to aspirate the thrombus. Although these catheters are capable of clot removal, studies have shown that using this method can result in 30-50% clot retention, and a large amount of blood is carried along with the aspiration process, making the aspiration very inefficient. Another existing technique, mechanical thrombectomy, has proven to be very costly and cumbersome to use. Time constraints are critical in...

AI Technical Summary

Problems solved by technology

In addition, both techniques use an invasive aspiration technique that cuts the clot into pieces, with the consequence that the pieces become dislodged, causing embolism and myocardial injury at a downstream location

Images