Double-cavity gasbag type external counterpulsation system

Abstract

The invention belongs to the technical field of external counterpulsation, and particularly provides a double-cavity gasbag type external counterpulsation system. The double-cavity gasbag type external counterpulsation system comprises a first gasbag, a second gasbag and a pressure source, wherein the first gasbag sleeves a human limb, and the first gasbag is filled with gas having constant pressure; the second gasbag is arranged at the inner side of the first gasbag, and the second gasbag is filled with gas having variable pressure; and the pressure source is respectively communicated to thefirst gasbag and the second gasbag through a pipeline and an electromagnetic valve arranged on the pipeline. Compared with a traditional pneumatic counterpulsation device, the double-cavity gasbag type external counterpulsation system provided by the invention has the advantages that the device volume is reduced, and the second gasbag which actually achieves a counterpulsation effect is small in volume, so that the inflating volume is greatly reduced, and the discomfort of a patient in a counterpulsation treatment process is avoided; and furthermore, because the pressure of the first gasbag ismaintained, the deflating speed of the second gasbag is increased to ensure the counterpulsation treatment effect.

Description

technical field [0001] The invention belongs to the technical field of external counterpulsation, in particular to a double-cavity airbag type external counterpulsation system. Background technique [0002] External counterpulsation is a method of non-invasively pressing the lower body outside the body to reduce and eliminate the symptoms of angina pectoris and improve the hypoxic-ischemic state of important organs of the body. It is also a medical device for preventing and treating cardiovascular and cerebrovascular diseases. The traditional external counterpulsation device inflates and pressurizes the air bag during the diastolic period through the air bag wrapped around the limbs and buttocks, so that the blood in the arteries of the limbs is driven back to the aorta, the diastolic pressure is significantly increased, the blood flow is increased for the heart, and the heart rate is reduced. Afterload: During the systole period, the air bag is quickly exhausted, the pressu...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dual-chamber airbag type external counterpulsation system, which overcomes the defects of the traditional single-chamber airbag structure in the process of counterpulsation, such as large product volume, large jitter, low user experience, and poor real-time performance

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