Bandage contracting type external counterpulsation device

Abstract

The invention, which belongs to the technical field of external counterpulsation equipment, particularly relates to a bandage contracting type external counterpulsation device comprising a transmission case, a driving source, a driving rod, two guide shaft sets and contraction bands. The driving source can drive the driving rod to rotate. The two guide shaft sets are symmetrically arranged on thetwo sides of the driving rod; and each guide shaft set includes a first guide shaft and a second guide shaft which are arranged in parallel in a spaced mode and sequentially arranged in a direction away from the driving rod; the two contraction bands are respectively fixed on the driving rod, band bodies of the two contraction bands respectively go around the outer side of the first guide shaft atone side of the driving rod and the outer side of the second guide shaft at the other side of the driving rod, and two ends of the two contraction bands are respectively and fixedly connected. According to the external counterpulsation device, the limbs of a user are bound through the flexible bandages, the tightening or loosening of the bandage converted by forward rotation or reverse rotation of the driving rod can be reliably transmitted to the limbs of the user in time, so that the external counterpulsation effect is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of external counterpulsation equipment, and in particular relates to a bandage contraction type external counterpulsation device. Background technique [0002] Counterpulsation is a method of assisting circulation by mechanically reducing systolic blood pressure and increasing diastolic blood pressure in the aorta to assist the heart to work, improve blood circulation, and increase blood perfusion of the heart, brain, kidneys and other organs . Counterpulsation increases the blood supply of the coronary arteries by increasing the diastolic pressure of the aorta, rescues the ischemic myocardium, and improves the pumping function of the heart. Commonly used counterpulsation methods include intra-aortic balloon counterpulsation and external counterpulsation. [0003] External counterpulsation is a method of non-invasively pressing the lower body outside the body to reduce and eliminate the symptoms of angina ...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional airbag inflation and pressurization method is not precise enough to control the extrusion force, and the speed response is slow

Specifically, the process of air bag inflation and pressurization is the process of gas compression transfer, that is, the movement of gas in the gas path is a process of pressure equalization under the condition of pressure difference. Compared with contact mechanical extrusion, this process The response speed is slow; at the same time, due to the non-linear pressure change of the gas path, the control is more complicated

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