Heart auxiliary device

A heart assist and heart technology, applied in the field of medical devices, can solve problems such as inability to assist in cardiac compression, single use of airbags, poor treatment effect, etc., and achieve the effects of avoiding myocardial damage, flexible use, and ensuring blood perfusion.

Inactive Publication Date: 2014-11-19
刘超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1: a kind of heart assist device, see figure 1 , image 3 , including a shell 1, the shell 1 is formed by coiling and bonding an inelastic flexible rope along the outer surface of the heart model, wherein the flexible rope requires both toughness and straightening. Silicone and polyester are preferred. Heart models can be made in various sizes according to different groups of people. When the casing is implanted into the heart, the lower end starts from the apex of the heart, and the upper end ends at the beginning of the aorta and pulmonary artery. The inner diameter of the casing is slightly larger than the actual heart by 1cm, and the diameter of the flexible rope is 1.5mm. A sealed left side airbag 2 is arranged along the outer surface of the left ventricle of the heart model in the inner layer of the shell, and a sealed right side airbag 3 is set along the outer surface of the right ventricle of the heart model in the inner layer of the shell, and the ...

Embodiment 2

[0030]Embodiment 2: Another heart assist device. The content of this embodiment is basically the same as that of Embodiment 1, and the same part of the content will not be repeated. The difference from Embodiment 1 is that in this embodiment, the left and right air intake pipes extend outside the body Parts are first connected through the three-way joint, and then connected to the gas source control device through the pipeline. The setting of the three-way joint is more convenient for adjusting left and right ventricle or biventricular assist.

[0031] Compared with the direct blood-contact cardiac assisting device in the above embodiments, it can be implanted at the end of the conventional extracardiac operation, and can be removed freely after the assistance is completed, which is convenient to operate. The specific extraction method depending on the situation is as follows:

[0032] Under visible conditions, the cardiac assist device of this embodiment is implanted on one ...

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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...

Claims

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Application Information

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IPC IPC(8): A61H31/00
Inventor 刘超姚星星李圣博郭龙辉焦周阳
Owner 刘超
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