Bandage retractable external counterpulsation device

Abstract

The invention belongs to the technical field of external counterpulsation equipment, and specifically relates to a bandage contraction type external counterpulsation device, which includes a transmission box, a driving source, an active rod, a guide shaft group and a contraction belt. The driving source can drive the active rod to rotate, and the guide shaft group There are two groups arranged symmetrically on both sides of the active rod. Each group of guide shafts includes two parallel and spaced first guide shafts and second guide shafts that are arranged in sequence from the adjacent active rod to the direction away from the active rod; the contraction band There are two and are respectively fixed on the active rod. The belt bodies of the two shrink belts respectively go around the outside of the first guide shaft on one side of the active rod and the outside of the second guide shaft on the other side of the active rod. The two ends of the belt are respectively fixedly connected; in the present invention, the user's limbs are bound by a flexible bandage, which ensures that the tightening and loosening of the bandage transformed by the forward or reverse rotation of the active rod can be transmitted to the user in a timely and reliable manner. On the limbs of the patient, the effect of external counterpulsation is ensured.

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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