Multi-mode atrial fibrillation demonstration model

Abstract

The invention discloses a multi-mode atrial fibrillation demonstration model. The model comprises a model base; the side connecting column is vertically fixed on one side of the upper end surface of the model base; the atrium model is obliquely erected on the model base through the side linkage columns; the first expansion and shrinkage assembly is correspondingly arranged in the atrium cavity of the atrium model; the first expansion and contraction assembly is correspondingly arranged in a ventricular cavity of the atrium model, the second expansion and contraction assembly is correspondingly arranged in the ventricular cavity of the atrium model, the composition structure of the first expansion and contraction assembly is similar to that of the second expansion and contraction assembly, and the first expansion and contraction assembly and the second expansion and contraction assembly synchronously move for expansion and contraction and are in opposite movement mode states; and the micro-wall expansion and contraction assembly is arranged in the atrial cavity and the ventricular cavity of the atrial model.

Description

technical field [0001] The invention belongs to the technical field of heart model equipment, in particular to a multi-mode atrial fibrillation demonstration model. Background technique [0002] The main function of the heart is to provide power for blood flow. Its contraction and relaxation are called a cardiac cycle, which includes four processes: atrial contraction, atrial relaxation, ventricular contraction and ventricular relaxation. In a cardiac cycle, the two atria contract at first, and the contraction of the right atrium is slightly ahead of the left atrium; the two ventricles contract after the atrium begins to relax, and the contraction of the left ventricle is slightly ahead of the right ventricle, and then the ventricle relaxes. It begins to contract again; therefore, the sequence of heartbeats is: atrial contraction, atrial diastole, ventricular contraction, and ventricular diastole. It is difficult to demonstrate the beating of atrial fibrillation; especially...

AI Technical Summary

Problems solved by technology

In a cardiac cycle, the two atria contract at first, and the contraction of the right atrium is slightly ahead of the left atrium; the two ventricles contract after the atrium begins to relax, and the contraction of the left ventricle is slightly ahead of the right ventricle, and then the ventricle relaxes. It begins to contract again; therefore, the sequence of heartbeats is: atrial contraction, atrial diastole, ventricular contraction, and ventricular diastole. It is difficult to demonstrate; especially the expansion and contraction changes of some atrial inner walls are difficult to capture with the naked eye; therefore, those skilled in the art provide a multi-mode atrial fibrillation demonstration model to solve the problems raised in the above background technology

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