Novel auxiliary device for treatment of Fontan circulatory failure

Abstract

The invention relates to the technical field of Fontan postoperative adjuvant treatment apparatus, in particular to a novel auxiliary device for the treatment of Fontan circulatory failure. The novelauxiliary device for the treatment of the Fontan circulatory failure includes a balloon, the balloon is placed at the intersection of pulmonary arteries, superior vena cava and inferior vena cava after Fontan operation; the two ends of the balloon are separately located in the superior vena cava and inferior vena cava; and as the balloon is inflated and deflated, blood in the superior vena cava and the inferior vena cava is squeezed into the pulmonary arteries. Through the way, the balloon is placed at the intersection of the pulmonary arteries, the superior vena cava and the inferior vena cava, through the inflation and deflation of the balloon, the balloon expands and contracts, and then the blood in the superior vena cava and the inferior vena cava is squeezed into the pulmonary arteries. Valves coupled with the balloon are opened and closed simultaneously to prevent the blood from flowing back to the superior vena cava and the inferior vena cava, so that the blood pulsates into thepulmonary arteries to play a role of a part of a right ventricular, so that patients with the Fontan circulatory failure are treated, and strong conditions are provided for later heart transplant operation.

Description

technical field [0001] The invention relates to the technical field of postoperative auxiliary therapy devices for Fontan, in particular to a novel auxiliary device for treating Fontan circulatory failure. Background technique [0002] Since Dr. Francis Fontan performed the first Fontan operation in 1971, the Fontan operation has become the "gold standard" for patients with complex congenital single ventricle. The operation method has been improved, and the most commonly used Fontan operation method is the external canal TCPC (caval vein-pulmonary artery connection) operation. The basic idea is to directly connect the superior and inferior vena cava to the right pulmonary artery, leave the right ventricle, and use the only ventricle to undertake systemic circulation. This operation separates the systemic circulation from the pulmonary circulation, significantly improving hypoxia and quality of life in patients with single ventricle, and has become a milestone in single vent...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many difficulties in Fontan circulation assistance: VA-ECMO is not effective; the indications for using LVAD are limited; cancellation of Fontan circulation + RVAD requires extracorporeal circulation complex surgery, traumatic, not suitable for emergency assistance; directly used for Fontan circulation assistance The pump design is very complex and still in the laboratory stage

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