Novel auxiliary device for treatment of Fontan circulatory failure

An auxiliary device and a new type of technology, which can be applied in the fields of pharmaceutical equipment, other medical equipment, and medical science, and can solve problems such as complex pump design, limited LVAD indications, and being in the laboratory stage.

Active Publication Date: 2019-12-17
周诚
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  • Summary
  • Abstract
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  • Claims
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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

Method used

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  • Novel auxiliary device for treatment of Fontan circulatory failure
  • Novel auxiliary device for treatment of Fontan circulatory failure
  • Novel auxiliary device for treatment of Fontan circulatory failure

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Embodiment Construction

[0020] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0021] see image 3 , image 3 It is a schematic diagram of the blood vessels after Fontan operation, and the superior vena cava, inferior vena cava and pulmonary artery are connected. Blood flows from the superior vena cava and inferior vena cava to the pulmonary artery. When this flow is not smooth, Fontan circulation failure occurs. The invention discloses a novel auxiliary device for treating Fontan circulation failure, including a balloon 6 and an air pump. The air pump is located outside the body, not shown in the figure, and is connected with the balloon 6 through a catheter. The air pump is used to infl...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/10A61M1/12A61F2/24
CPCA61F2/2457A61M2205/04A61M60/268A61M60/135A61M60/148
Inventor 周诚夏家红
Owner 周诚
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