Thrombus breaking and collecting mechanism of thrombus capturing and removing catheter device

Abstract

The invention discloses a thrombus breaking and collecting mechanism of a thrombus capturing and removing catheter device, and belongs to the field of vascular intervention medical instruments. The mechanism comprises a three-way suction connector, a suction inner tube, a two-way outer tube connector, an outer tube, a self-expansion net basket support, a tip cap, a guide wire guide tube and a separator; the far end of the three-way suction connector is in sealed connection with the near end of the suction inner tube, the far end of the two-way outer tube connector is in sealed connection withthe near end of the outer tube, and the inner tube is inserted into the outer tube. The mechanism further comprises a self-expansion net basket support, a tip cap, a guide wire guide pipe and a separator. The separator is arranged at the far end of the catheter device, thrombus can be split and guided into the suction catheter, and the risk that the thrombus blocks the suction opening is reduced;the self-expansion net basket support arranged near the suction opening can scrape wall-attached thrombus, and the thrombus taking-out rate is increased; meanwhile, the self-expansion net basket support can collect thrombus, the thrombus is prevented from escaping to the far end, and the occurrence rate of operative complications is reduced.

Description

technical field [0001] The invention relates to a thrombus crushing and collecting mechanism for a thrombus capture and removal catheter device, which belongs to the technical field of vascular interventional medical devices. Background technique [0002] Deep venous thrombosis (DVT) is a disease caused by abnormal coagulation of blood in deep veins. DVT leads to increased venous pressure, obstructed blood return, lower extremity swelling, pain and dysfunction. If not treated effectively in the acute stage, thrombus organization, venous obstruction, loss of valve function, venous regurgitation and venous hypertension, post-thrombotic syndrome Post thrombosis syndrome (PTS), endangering limb survival. At the same time, there is a risk of thrombus detachment, and the detached thrombus reaches the pulmonary artery with the impact of blood flow, causing pulmonary embolism (pulmonary embolism, PE). Pulmonary embolism has a high mortality rate and disability rate, threatening lif...

AI Technical Summary

Problems solved by technology

In addition, thrombus is usually attached to the vessel wall, and it is difficult to remove the thrombus by suction, and the suction opening at the distal tip of the smaller suction catheter is not easy to locate and capture the wall-attached thrombus in large-diameter vessels, As a result, the patient may not attract thrombus but only suck blood during the negative pressure suction process, resulting in excessive blood loss of the patient

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