I Can See Health

Chapter 920 Valvular Regurgitation

Kebed stayed in the Fifth Courtyard of Magic City for a week.

A week later.

The final evaluation surgery for the tricuspid valve repair system is scheduled.

This operation was performed quietly and very low-key.

Only a few people in the Cardiology Department of the Fifth Hospital of Shanghai knew about the arrangements for this operation.

Lu Chen, Kebed, Gu Xinyue, and Jin Miao all came to the interventional catheterization laboratory of the Department of Cardiology.

The tricuspid valve repair system, which has been improved many times, has been revealed to everyone.

This valve repair device is not large in size, but its internal structure is extremely precise.

As long as the Fifth Hospital in Shanghai passes the test of this evaluation operation, it will mean the birth of China's first "tricuspid valve repair system"!

Inside the catheter room.

Except for Lu Chen, everyone had solemn expressions.

For him, failure is just another chance.

There are countless thoughts in his mind, this time failed, there will be a next time.

But for others, if they miss this time, they won’t know when the next time will be.

The most important thing is whether he can hug Lu Chen's lap or not.

"Let the operation begin!"

Following Lu Chen's order, Jin Miao and Gu Xinyue took the catheter of the "Tricuspid Valve Repair System" and began to puncture the blood vessel and enter the patient's body.

The tricuspid valve repair device mainly includes a main body and multiple connecting elements.

The main body is substantially annular and D-shaped with an eccentric opening.

The mitral valve facing the left atrium during systole covers basically the entire part of its posterior leaflet, thereby preventing and reducing tricuspid regurgitation. This is also the key point of the entire tricuspid valve repair device!

Jin Miao successfully delivered the tricuspid valve repair system to the heart valve.

To avoid attaching the supratricuspid device to the annulus, causing the chordae tendineae to bear the load.

Lu Chen attached the supratricuspid device to the functional leaflets, and by attaching to the valve leaflets, it engaged the many chordae tendineae that were not torn to support the flail segment.

In addition, there is another difficulty in the operation!

The human heart is beating all the time.

With traditional devices, there may be repeated contact between the device above the tricuspid valve and the posterior leaflet during heart beating, causing cumulative damage to the valve leaflet tissue.

Lu Chen improved the traditional method to keep the tricuspid valve device attached to the posterior leaflet.

Let them move together without collision.

"Lu, your idea is so cool!" Kebed looked at the device in front of him in amazement.

Lu Chen smiled and explained while directing the operation: "The supra-tricuspid valve device is made of flexible material, which slowly hardens after the device is implanted. This advantageously enables the supra-tricuspid valve device to adopt the anatomy of the valve leaflet tissue. shape, maintaining functional chordae at their natural length, thus maintaining an even load distribution between them while absorbing the systolic thrust of left ventricular pressure."

"Awesome! That's awesome!" Kebed gave a thumbs up.

The entire operation has been completed so far without any problems.

The puncture, catheter guide wire entry, and repair system delivery were all very smooth.

But Lu Chen's thinking was always tense and he did not dare to relax in the slightest.

Because the real obstacle is still behind, the biggest problem in valve repair is the amount of valve regurgitation!

How to judge reflux?

After the surgery, you need to listen to a cardiac ultrasound instrument to measure the size of the regurgitant volume, as well as the valve area and perioral flow velocity.

Once the amount of blood reflux is too large, the entire operation will completely fail.

"Lu, I would like to know how you reduced the problem of valve regurgitation after repair?" Kebed asked doubtfully.

The problem is also plaguing Mayo's internal patching system.

Lu Chen picked up the icon of the tricuspid valve repair system and explained: "Look at the part where the extension is adjacent to the posterior part. When the device was implanted, I made it overlap with the posterior part of the anterior leaflet. Through this special The overlapping area can effectively reduce tricuspid regurgitation.”

"Ah? It can still be like this!"

Kebed was stunned and began to think about how the entire valve device worked.

The valve repair system he saw today is the first of its kind in the world!

However, this is just a simulated surgery after all.

Twenty minutes later.

With the assistance of Gu Xinyue, Jin Miao completed the entire tricuspid valve repair operation.

At this time, he didn't dare to breathe, and his eyes were fixed on the image of the valve on the screen.

The operation was successfully completed, but this does not mean that the operation was successful.

"Bring over the ultrasound machine!"

The nurse at the reception desk quickly brought over the cardiac ultrasound machine.

Lu Chen took the probe and began to conduct ultrasound examination.

"The valve is in good position!"

“Good orifice area!”

"Good valve flow!"

The last and most important indicator is the degree of valve regurgitation.

Everyone was staring at Lu Chen closely, wanting to know the final result as soon as possible.

At this time, Lu Chen was also concentrating, holding the ultrasound probe in his hand, checking the size of the valve regurgitation on the ultrasound screen.

Finally, he saw the final image clearly.

Gently putting down the ultrasound machine, Lu Chen slowly raised his head and smiled at everyone: "There is very little valve regurgitation!"

The words just fell.

Everyone in the cath lab breathed a sigh of relief and looked happy.

Jin Miao and Gu Xinyue raised their eyebrows with joy, their hands trembling slightly with excitement.

The entire simulated surgical operation was completed by the two of them.

"We... succeeded!" Gu Xinyue said excitedly.

Jin Miao nodded suddenly and agreed: "Yes, it worked, I did it!"

"I... became an assistant!" Gu Xinyue smiled.

Lu Chen stood aside and poured a ladle of cold water on the two of them at the right time.

"This is a simulated surgery. I will be happy when it is actually successfully performed on clinical patients."

"Hehe." Jin Miao suppressed some of his smile when he heard this, but he still looked overjoyed.

At this time, Professor Kebed was surrounding the tricuspid valve repair system and observing continuously.

"Lu, can you lend this to Mayo?" Kebed suddenly raised his head and said, "We will pay for it!"

Lu Chen smiled and shook his head, "I'm afraid not. This system is a collaboration between our Fifth Hospital in Shanghai and a company in Shanghai. The purpose is to develop China's first tricuspid valve repair system. It must not be sold."

"What a pity. UUReading www.uukanshu.net" Kebed shook his head.

Lu Chen smiled and said: "Professor Kebed, your current patching system at Mayo is not bad. With slight modifications, it will definitely be better."

Kebed spread his hands, "I didn't see your surgery today, I thought the same thing, but now, I don't think so anymore."

He turned his attention to this brand-new "tricuspid valve repair" device.

Unfortunately, he could only see the operation process, but not the internal structure of the device.

He also couldn't modify Mayo's device.

Here in the Fifth Courtyard of the Magic City, everything is booming.

At the Kyoto First Hospital, there was also a major breakthrough.

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