Heart Chamber Simulators Actuated by Hydraulic or Pneumatic Artificial Muscles

Abstract

The invention discloses a heart chamber simulator driven by a hydraulic or air-pressure artificial muscle. The heart chamber simulator can really reflect cardiac systolic and diastolic beating process pressure and chamber deformation. The simulator comprises an outer sheath layer, a myocardium layer, cardiac valves and a closed hollow cavity formed between the outer sheath layer and the myocardium layer. The wall surface of the outer sheath layer is provided with a through hole used for input or output of liquid (gas) in the hollow cavity. Contraction and relaxation of a heart model can be achieved by changing the pressure in the hollow cavity. The heart chamber simulator can overcome the defect that a contraction and relaxation pressure error is caused by a pump which is used in an external circulation pipeline and solve the problem that a difference between the heart chamber deformation caused by external mechanical loading and the actual myocardial contraction and relaxation process deformation is large, and really reflects the heart chamber beating process deformation and correct circulating pressure relationships.

Description

technical field [0001] The invention relates to a novel cardiac chamber simulator, in particular to a hydraulic or pneumatic artificial muscle-driven cardiac chamber simulator. The simulator can simulate the beating of the heart, and is used to assist in the research and development of minimally invasive intracardiac interventional medical devices, blood circulation and medical imaging research, and to train doctors. Background technique [0002] A heart simulator is a device used to simulate the beating of the heart and the process of blood circulation. It has the following important significance for the development of minimally invasive intracardiac interventional medicine. First of all, cardiovascular disease is the number one killer of human health, and all countries attach great importance to the research and development of medical devices in the field of minimally invasive cardiac diagnosis and treatment. my country's medical device companies have also gradually begun...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the existing heart simulator cannot correctly reflect the corresponding relationship between the pressure of the heart during systole and diastole, and the deformation caused by external loading cannot reflect the overall contraction and deformation of the myocardium, so that the heart simulator cannot truly reflect the heart beating process. A new type of heart simulator is developed, which is driven by hydraulic (pneumatic) pressure artificial muscles to complete the contraction and relaxation of the heart chamber, which can not only satisfy the correct pressure relationship, but also reflect the overall deformation process of the myocardium, thus realistically reflecting the heart beat process

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