How far is the artificial heart from our lives? In fact, it has been listed in our country.

Implantable left ventricular assist system "it is a very good left ventricular assistance system, which can help the left ventricle work properly. In fact, the left ventricle is the most important place in the heart, and this auxiliary system helps the heart work. For some people, the function of the heart is limited because of various diseases. Can the heart continue to supply blood to the body? it may also occur in the brain or even the liver. In clinical practice, we call this condition heart failure? The number of patients with heart failure is also rising, and it is not impossible to change a heart. We call this treatment a heart transplant. Heart transplantation is a very effective way, and changing a heart is not that simple. 91% of patients can live for more than a year after a heart change. We don't have so many hearts available for transplant, and the shortage of heart transplant donors is obvious to all. Implantable ventricular assist devices are implanted in patients with end-stage heart failure who can undergo heart transplants every year.

How far do you think the artificial heart is from our lives?

Recently, the Drug Administration of our country released a message that there is aImplantable left ventricular assist systemApproved to go on the market, this kind of thing can be used.

But for ordinary people, judging from the name alone, they don't seem to understand what this thing is for, and it seems to have something to do with the heart.

In fact, it's a very goodLeft ventricular assist systemIt can help the left ventricle work properly.

But what is the use of the left ventricle? Why do you need to work with help?

This question is easy to answer.The left ventricle is actually the most important place in the heart.It can jump blood out of the heart and transport nutrients and nutrients to all organs and even cells of the body.

In other words, this assist system helps the heart work and increases ejection fraction.

To put it more simply, this device with a very long name is actually a kind of:

"artificial heart".

But who can use this device? Will everyone have an artificial heart in the future world?

First, the gospel of patients with heart failure.

It is self-evident how important the heart is, but can you imagine that some people have limited heart function due to various diseases, and the heart is unable to continuously supply blood to the body?

What should I do if this happens?

In a person's life, the cells of our body continue to decline, this situation occurs not only in the heart, but also in the brain or even the liver, even the skin on the surface of the body can not escape the fate of degeneration.

For most people, this decline of all organs of the body can be abbreviated to two words:

Aging.

Who can escape aging?

Like the heart, the heart beats every minute, and if the heart stops working, a person's life will not last a few minutes.

It is trueThe heart also ages.If the heart is really old, its original ejection ability gradually declines to the extent that it is not enough to supply blood to all the cells of the body, how should it do?

This situation is not uncommon. In clinical practice, we call it heart failure. To put it more comprehensively, his name is called:

heart failure.

According to the statistics of some scholars, the number of patients with heart failure worldwide has even reached64 million peopleAnd the world's population is aging, and the number of patients with heart failure is also rising.

If a person's heart really can't beat, what can we do to help him?

In the beginning, some people thought the method was very simple and rude:

Get another heart.

We often see this kind of plot in science fiction, but in fact, even in real life, it is not impossible to change a heart. We call this treatment.heart transplant.

For a long time, for patients with end-stage heart failure, heart transplant is a very effective way, it sounds very simple and rough, the heart can not beat, why not replace it?

But it's not that easy to change a heart. According to current data, 91% of patients can live for more than a year after a heart replacement, but if they continue to live, the survival rate is not so high.

Even with a full set of anti-rejection drugs, 85% of people can live for three years.Only 75% of people will live for another five years after the operation.

Of course, the survival rate is on the one hand, and on the other hand, the more serious problem is that we don't have that many hearts available for transplant. Not only in our country, but also in the world, the shortage of heart transplant donors is obvious to all.

The number of patients with end-stage heart failure who can undergo heart transplant every year is less than3%.

On the one hand, there are few donors, on the other hand, after transplantation, the survival rate is not so high.

What should I do about this?

Researchers don't stand still, they keep coming up with ways, and many people look to another kind of heart:

Mechanical heart.

Second, "mechanical heart".

Although we call it a mechanical heart, the relevant practitioners do not call it that, but call it a more professional name:

Implantable ventricular assist device.

It is this kind of artificial heart that can work instead of the left ventricle, help the heart eject blood and reinvigorate the aging heart.

Moreover, this kind of artificial heart is not a whim.

As early as the 1950s, many scholars began to explore in this area.Around 1970Similar devices have been launched in many countries to help patients with end-stage heart failure lead a better life.

There are many types of artificial hearts, some to help the left ventricle beat, some to help the right ventricle beat, and of course there are rare devices that can help both ventricles beat at the same time.

In addition, according to the difference of blood flow pump, the device can be divided into many types, such as pulsatile blood flow type, continuous blood flow type, even suspension type and so on. This time, the artificial heart listed in our country with independent intellectual property rights isSuspension system.

As early as 1964, some scholars in the United States started the artificial heart program, and they first used this device in 1969, but the technology at that time was not mature and the auxiliary system could not continue to work.A substitute for a heart transplant.After 64 hours of life support, the patient was replaced by a donor heart.

Until 1992, the biventricular extracorporeal assist system developed by an American company was officially put on the market. Since then, for many patients with ventricular dysfunction and myocardial infarction, temporary new assistance has officially appeared on the stage, and more and more patients have benefited from this technology.

However, over the years, in addition to the United States, there are also some Japanese and European Union countries involved, but our country has not had many new assistive devices.

Until2019Chongqing Yongren Enterprise just produced an implantable left ventricular assist system, and since thenOur country officially has its own artificial heart.

And the launch of the left ventricular assist system is named"Rocket Heart". This device uses magnetic fluid levitation technology, which can play a role in the left ventricle, and more importantly, our country has completely independent intellectual property rights of this device.

Sum up.

Although it is only a small report, it is undeniable that the development of science and technology in our country is changing with each passing day, and more and more independent intellectual property equipment are being developed.

The artificial heart released this time is very important for the end-stage treatment of patients with heart failure, who may not have to wait for the emergence of heart transplant donors.

It is believed that there will be more and more similar studies.Many artificial organs will gradually appear on the stage, and more and more health problems can be solved.

@ headline Health "# artificial Heart #" # Cardiovascular Health 100 questions and answers # "

reference

Yan Shu, Chen Juan, Lu Yan, Ouyang Zhaolian. Progress in research and application of implantable ventricular assist devices at home and abroad [J]. Chinese Medical equipment, 2022pc19 (01): 21-26

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