The tip of the coronary plaque abrasion catheter is a metal stainless steel drill head inlaid with fine diamond particles.

The catheter entered the coronary artery blockage, and Zheng Ren opened the drill grinding head.

The drill grinding head is welded to a long and flexible spiral rotating conduit, which is driven by a gas turbine connected to it to rotate at high speed, and its speed is 180000~200000 rpm.

When it rotates at high speeds, it grinds atheroma into fine debris and flushes it distally, through which the capillary bed can be passed.

There is a cavity in the catheter to pass through a 0.25 cm, 300 cm long guidewire.

The drive shaft is installed in a 4.3F polyethylene sheath, which is pressurized at 40kPa during operation and continuously flushed with normal saline to cool and lubricate.

The plaque was worn off little by little, but Zheng Ren's expression did not relax, and his two thick eyebrows frowned.

It's different from what I imagined, even with the level of a master's interventional surgery, it is still very difficult to ...... before it is possible to complete the surgery.

It seems that the surgical training time is going to be used a little more......

Although there is a "huge amount of money", Zheng Ren is still very careful to use every minute and every second of surgical training time.

God knows when these trainings will come in handy.

It's no wonder that the circulatory interventional doctors at the Carolinsian Institute of Medical Surgery in Stockholm don't dare to do it.

"Bang ......" Zheng Ren seemed to be able to hear a crisp sound.

The coronary arteries are worn out......

Blood instantly fills the pericardial cavity.

If this is outside, it should be an emergency rescue. Open the chest cavity and resolve the problem of cardiac tamponade.

And with Dr. Mehal's physical state, he can be directly declared clinically dead.

Zheng Ren sweated on his forehead.

Surgery, failed.

Again!

Another operation failed five minutes later.

Again!

Zheng Ren was in the operating room of the system, focusing on the operation, and he was completely unaware of the passage of time on the ectopic plane.

In the blink of an eye, the 22-day surgical training was over.

528 hours, 31,680 minutes, boring, tedious training to do in one go.

Zheng Ren was not tired, but was full of strange excitement.

What requires great perseverance to do, Zheng Ren regards as entertainment, like playing a game at night, more than 30,000 minutes, in the blink of an eye.

Don't eat,

Don't drink,

endlessly

Sleepless.

But the operation was still successful!

It was not an accidental success, Zheng Ren performed 30 coronary artery occlusion openings similar to Dr. Mehar in a row, and the completion rate of all the surgeries was 100%.

But it's not over yet, it's just an accident, a beginning.

Because of Dr. Mehar's abnormal blood clotting state, it is not enough to open the coronary arteries.

Zheng Ren definitely didn't want the surgery to be successful, and a few months later, Dr. Mehal had to face the same problem again.

Just because you can open it this time doesn't mean you can do it next time.

The trauma of surgery, no matter how high the level, will remain. And Dr. Mehal is still aging, and his body is gradually changing.

Next time, even Zheng Ren can't guarantee that he will be able to do rotary atherectomy again.

Even if successful, it will only prolong the patient's survival for a few months, and then the same situation will be endlessly confronted.

Zheng Ren did not step down when the operation was 100% complete, but took a retrievable stent and studied it.

This recyclable stent with membrane is the kind that is commonly used in clinical practice.

Zheng Ren rarely thought about it for a long time, and then put the recyclable membrane stent into it.

Pushing open the subject's coronary arteries, the red color that remained on the system panel quickly faded.

At this point, the operation should be over.

But Zheng Ren didn't move, he was a little worried, worried that the big pig's trotters would not be able to understand his intentions.

However, worrying is unnecessary.

As soon as his mind moved, the subject lay motionless in the operating room of the system.

And it was as if months had passed, and the stent was full of blood clots.

This is what Zheng Ren considers, and whether the patient can be regarded as a successful operation in the real sense depends on this.

He carefully opened the balloon of the retrievable stent, and placed another absorber, turning the frequency to a certain range to absorb the falling blood clots.

Removing the stent with membrane little by little, very carefully, the level of the master's surgery, it is still very difficult to do.

Unfortunately, unsurprisingly, there was still a blood clot that broke off and flowed into other blood vessels, causing arterial embolism.

Manifested in the subject, the symptom is cerebral infarction.

Although the operation failed, Jung in smiled.

It was the first time he smiled since entering the operating room.

The idea is fine, but the operation needs to be improved.

That's good, as long as the direction is okay, everything is easy to say.

It is also a non-stop surgical training, and Zheng Ren has done very difficult even at the level of a master's surgery.

This time, it didn't take that long, 21 hours and 44 minutes of surgical training, Zheng Ren was already able to skillfully remove the stent with membrane full of blood clots, and then the steps were simple, and then a new stent was added.

The only problem with this new procedure is that it is expensive for patients.

In a few months, a stent is placed and the corresponding anticoagulation is given by mouth.

But after all, there's a way, isn't it?

It took nearly 10 hours for Zheng Ren to master the two techniques before he left the system space with a smile.

……

……

In the observation room of the ward of the Carolinsian Institute of Medical Surgery in Stockholm, Su Yun was still looking down and fiddling with his mobile phone, not knowing which girl he was chatting with.

The professor still hasn't returned, and several doctors are still concentrating on recording every value and conducting professional analysis.

Zheng Ren knew that once there was a change in his condition, they would press the corresponding button and find the most professional doctor to deal with Dr. Mehal.

But none of this had anything to do with Jung In, who smiled, leaned back, and leaned back in his chair.

Seeing that Zheng Ren finally moved, Su Yun put down his phone.

"Boss, no problem. Su Yun didn't know where the confidence came from, this kind of surgery that was difficult to do even at the level of a master, he actually believed that Zheng Ren could do it.

"No problem. Zheng Rendao.

After a pause, Zheng Ren said affirmatively: "No problem at all!"

"That's good. Su Yun smiled and blew, "I'll help the professor in a while." ”

"What do you do for him?" Zheng Ren was surprised.

"His mouth is dumber than the waistband of cotton trousers, and of course he can't win a quarrel. I'm going to help him fight and get this surgery in my hands. Su Yun said with a smile, it seemed that he was in a good mood.

"Well, you're arguing a lot, go ahead, I'll wait here for your good news. Zheng Ren stretched his waist and said lazily.

Su Yun's face changed, is Zheng Ren scolding himself?

I'm good at lip service, but I can't do surgery?!

But it doesn't look like Zheng Ren.

Su Yun felt aggrieved...... MD, we must re-carry out the human heart transplant surgery, so that this guy feels that he can't do the operation!

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