Aorta intubation tube

Abstract

The invention relates to an aorta intubation tube. The main body of the aorta intubation tube is a composite reducer pipe, and an intubation chew formed by bending a right angle is arranged at one end of which the diameter is smaller. The intubation tube is characterized in that a through hole is formed in a right angle bending back, and an one-way valve through which blood can flow from outside to inside is mounted on the through hole. According to the invention, the through hole with the one-way valve is arranged in the right angle bending back of the intubation tube, so that the condition that after an external circulation aorta intubation tube is set in a baby without external circulation, the heart of the baby can enable the blood to flow easily and smoothly to an aorta, is ensured, and then, the blood is distributed to the whole body to provide required oxygen and nutrient substances, and maintain the stability of blood pressure and hemodynamics; when the external circulation begins and during the external circulation, along with the rising of the pressure in the aorta intubation tube, the one-way valve at the through hole generates functional closing, so that the condition that the blood flows to the far end of the aorta to discharge blood, and the blood does not return to the heart is ensured.

Description

Technical field: [0001] The invention belongs to the technical field of medical devices, in particular to a special aortic cannula for infants. Background technique: [0002] With the progress of society and the development of science, most children with congenital heart disease will undergo surgical treatment in infancy. Infants and young children have small hearts and thin blood vessels. After the extracorporeal circulation is established with conventional aortic catheterization, it is easy to cause poor blood drainage from the heart to the aorta, resulting in a drop in blood pressure and affecting the stability of hemodynamics. In order to overcome the above disadvantages, in the past, some units tried to use thinner aortic cannula to establish extracorporeal circulation, but this may cause high pump pressure, and even the extracorporeal circulation was forced to be interrupted. [0003] Aortic cannula is one of the necessary materials for cardiopulmonary bypass cardiac ...

AI Technical Summary

Problems solved by technology

However, at present, conventional aortic cannulation is mostly used in cardiac surgery for infants and young children, that is, right-angle elbow cannulation, and there are the following problems in the clinical application process: 1. After insertion, the back of the elbow is easy to cause the heart to drain blood to the aorta 2. Moreover, the insertion of the aorta is deep, which can easily lead to poor blood flow from the heart to the aorta

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