Pressure measuring integrated external counterpulsation heart auxiliary device beside main artery

Abstract

The invention relates to a pressure measuring integrated external counterpulsation heart auxiliary device beside a main artery. The auxiliary device is formed by a hollow main body cavity placed extracorporeally, the main body cavity is composed of a first inner cavity and a second inner cavity, a diaphragm is arranged between the first inner cavity and the second inner cavity, the first inner cavity is provided with a valvula-less opening and coincides with the main artery through a rigid artificial blood vessel, and the second inner cavity is provided with an air inlet and an air outlet and connected with a gas driving device through a pipe. The auxiliary device has the advantages that pressure changes can be monitored synchronously, blood of the main artery is sucked into the auxiliary device during a systole period, systolic pressure is reduced obviously, afterload of the heart is reduced, and myocardial oxygen consumption is reduced; during a diastole period, the blood in the auxiliary device is led to a large vessel, mean blood pressure and diastolic blood pressure of the main artery are improved obviously, and perfusion of a coronary artery and other tissues is improved so as to achieve the goal of effectively assisting circulation.

Description

Technical field [0001] The invention belongs to a cardiac mechanical assist device, and in particular relates to an external para-aortic counterpulsation heart assist device which is easy to observe circulatory changes and has good histocompatibility in long-term application of patients with heart failure. Background technique [0002] The cardiac mechanical assist device is to maintain effective circulation, reduce myocardial oxygen consumption, inhibit ventricular remodeling, increase coronary perfusion, and promote myocardial recovery to achieve the purpose of saving patients' lives. At present, there are more and more people with severe acute heart failure, unable to leave the cardiopulmonary bypass machine after heart surgery, waiting for heart transplantation, and end-stage heart disease. They urgently need cardiac assistance for short-term transition or for a long time to wait for a cardiac donor or long-term assistance. Therefore, the auxiliary device is required not only...

AI Technical Summary

Problems solved by technology

However, in the course of its application, clinical findings have the following disadvantages: ①The hemodynamic support provided is limited, and it is strongly dependent on the patient's own heart function; ②It cannot be used for a long time (usually within 2 weeks) due to the restriction of the patient's activities. ; ③ Complications such as ischemia and thrombosis at the distal end of the IABP implanted vessel may occur

The clinical application of the above-mentioned patented technology is to use para-aortic counterpulsation, which cannot realize integrated arterial pressure detection

Femoral artery or radial artery pressure measurement has been used for a long time, which brings a lot of inconvenience to patients and treatment

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