Intra-aortic balloon counterpulsation synergistic device with valve covered stent and using method

Abstract

The invention provides an intra-aorta balloon counterpulsation synergistic device with a valve covered stent and a using method. The intra-aorta balloon counterpulsation synergistic device comprises the covered stent, a valve, a balloon counterpulsation system and a conveying and releasing device. The covered stent and the valve are integrated, the covered stent with the valve, a balloon and a catheter are simultaneously or separately conveyed to designated positions through the conveying and releasing device, and after the stent is released, the balloon counterpulsation system starts to operate. The balloon is synchronous with electrocardio when inflated and deflated, the balloon is inflated in a ventricular diastole, the autologous aortic valve is closed, the valve is opened, the inflated balloon drives blood contained in the covered stent into the near end and the far end of the balloon, and due to the fact that the covered stent is supported outside the balloon, expansion of the elastic aorta caused by pressure generated by expansion of the built-in balloon is limited; the balloon is deflated in a ventricular systolic period, and the autologous aortic valve is opened; and by virtue of supporting of the covered stent and the one-way valve, inner diameter retraction and blood regurgitation of the elastic aorta, sudden pressure drop in the covered stent and unloading in the left ventricular systolic period caused by pressure drop around the balloon when the balloon is deflated are avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an intra-aortic balloon counterpulsation booster device with a valve stent graft and a method for using it. Background technique [0002] Intra-aortic balloon pump (IABP) is a mechanically assisted circulation device widely used in clinical practice. A catheter with a balloon is implanted into the descending aorta from the arterial system, and the balloon expands and contracts according to the cardiac cycle. , to drive blood phase changes in the aorta, thereby increasing aortic diastolic pressure and coronary perfusion, reducing systolic blood pressure, improving left ventricular ejection, and achieving the purpose of improving heart function. [0003] The aortic balloon counterpulsation device includes a balloon catheter and a counterpulsation machine as a driving part of the balloon catheter. The balloon catheter consists of a balloon and an air supply catheter. The se...

AI Technical Summary

Problems solved by technology

[0005] The aortic balloon counterpulsation device currently used clinically, when the balloon is inflated to generate positive pressure and drive blood to flow to both sides of the aorta, the pressure of the aortic vessel wall due to balloon inflation causes the vessel wall to expand outward; The balloon is deflated to generate negative pressure, forcing the blood to flow back to the contracted balloon, and at the same time make the aortic vessel wall shrink inward; greatly reducing the effect of the balloon on the blood, resulting in poor therapeutic effect

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