Heart auxiliary device

Abstract

The invention discloses a heart auxiliary device which comprises an outer shell. The outer shell is formed by bonding and fixing a non-elastic flexible rope on the outer surface of a heart model in a spiral mode, a sealed left air bag is arranged along the outer surface of a left heart chamber of the heart model and located in the outer shell, a sealed right air bag is arranged along the outer surface of a right heart chamber of the heart model and located in the outer shell, buckling rings are arranged on the upper portions of the inner walls, close to the side wall of the left air bag and the side wall of the right air bag, of the outer shell respectively, the upper end of the left air bag and the upper end of the right air bag are fixed on the buckling rings, a lower opening of the left air bag is communicated with a left air inlet pipe, a lower opening of the right air bag is communicated with a right air inlet pipe, the left air inlet pipe and the right air inlet pipe penetrate out of the heart apex at the bottom of the outer shell and extend outwards, and the extending parts of the left air inlet pipe and the right air inlet pipe are communicated with an air source control device. The heart auxiliary device is not in direct contact with blood, anticoagulation is not needed in the application process, a series of blood vessel complications like bleeding, thrombosis, hemolysis and immunoreactions are avoided, the infection rate is reduced, and the heart auxiliary device can be suitable for single-heart-chamber assistance and double-heart-chamber assistance, and is flexible in using method.

Description

technical field [0001] The invention relates to a medical device, in particular to a heart assist device. Background technique [0002] Now about 10 million patients die from heart failure every year in the world, and it has become one of the diseases with the highest mortality rate in the world. According to statistics, there are currently 800,000 new heart failure patients in the United States every year. 10 million people, similarly, there are more than 6 million heart failure patients in our country, and there are hundreds of thousands of new patients every year. At present, the commonly used methods for the treatment of heart failure include drug therapy, heart transplantation and mechanical assist device therapy. Among them, mechanical device-assisted therapy can be divided into direct blood contact type and non-blood contact type according to whether the ventricular assist device is in contact with blood. The direct blood contact device needs to be intubated directl...

AI Technical Summary

Problems solved by technology

However, there is no multifunctional non-blood-contact cardiac assisting device with good therapeutic effect, flexible use, and small load on the heart. For example, the retrieved comparative document 1: Patent No. "200610012565.7"; ", the whole-heart assist airbag disclosed in the specification of document 1 is also a non-blood direct contact heart assist device, but the airbag is an integral "U"-shaped airbag with only one air intake pipe, and the airbag is in the shape of a "U". When using it, the left and right ventricle of the heart must be pressed and assisted at the same time. The apex at the bottom of the heart must also be pressed by a certain external force, causing the apex to contract to the bottom of the heart, so that the heart bears a relatively large load. It will cause some additional trauma to the heart, and the use method of the airbag is single, and it cannot provide local compression assistance to the heart in a targeted manner, and the treatment effect is not good, resulting in a certain waste of resources

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