Head-end double-lumen balloon catheter

Abstract

The invention discloses a head-end double-lumen balloon catheter, including a catheter and a balloon arranged on the catheter and communicated with the catheter. A side lumen is disposed between the front port of the catheter and the balloon; two ends of the side lumen are respectively provided with a guide wire exit and a guide wire entrance; and the side lumen is arranged parallel to the catheter. The invention has the following beneficial effects: through the role of the balloon, when the main branch blood vessel is placed into a stent, the branch vessels can be effectively protected and severe stenosis or occlusion of the branch vessels can be avoided; through the role of the side lumen, smooth reentry of the guide wire into the branch vessels through the mesh of the main branch stentcan be ensured, and occlusion of the branch vessels also can be avoided; in addition, the balloon also takes into account the characteristics of ordinary semi-compliant balloons, pre-expands the lesion, reduces interventional supplies and medical costs, and facilitates smooth withdrawal of the guide wire.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a head-end double-chamber balloon catheter. Background technique [0002] Coronary bifurcation lesions account for about 15%-20% of percutaneous coronary intervention (PCI). During the PCI process, due to the complex anatomy and dynamic changes of the coronary artery bifurcation, the blood flow of the branch vessels is affected and the incidence of adverse events is high. Therefore, interventional treatment of bifurcation lesions is still a difficulty and challenge for PCI. A large number of clinical studies have shown that in the interventional treatment strategy for bifurcation lesions, compared with double-stent surgery, single-stent surgery significantly reduces the incidence of major MACC events and improves the clinical prognosis of patients. However, when stents are implanted in the main coronary artery, the branch vessels will cause severe stenosis or occlusion due to plaq...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the existing interventional treatment technology for bifurcation lesions cannot effectively protect the branch blood vessels, and provide a method for confinement and protection of branch blood vessels, while taking into account the characteristics of semi-compliant balloons, and can ensure that the guide wire passes through the main branch smoothly. Double lumen balloon catheter with stent mesh reentrant branch vessel tip

Images