Chapter 621： It’s awkward.

The top of the coronary atherectomy catheter is a metal stainless steel drill head with fine diamond particles.

The catheter enters the coronary artery blockage position, and Zheng Ren opens the drill head.

The drill head is welded to a long, flexible spiral rotating duct, which is driven by a gas turbine connected downstream to rotate at a high speed of 180,000 to 200,000 rpm.

At high speeds, the atheromatous plaque can be ground into fine debris and flushed to the distal end, and debris can pass through the capillary bed.

There is a cavity in the catheter for passing a 0.25 cm long and 300 cm long guide wire.

The drive shaft is mounted in a 4.3F polyethylene sheath tube. During operation, the sheath tube is pressurized with 40 kPa and continuously rinsed with physiological saline to provide cooling and lubrication.

The plaque was worn away a little, and Zheng Ren’s expression did not relax, and the two thick eyebrows wrinkled.

It's not the same as I imagined. Even with the level of interventional surgery at the master level, it is still very difficult... It is possible to complete the operation.

It seems that the surgery training time should be used more...

Although there are "big money", Zheng Ren is particularly careful to use every minute and every second of the training time.

God knows when these trainings can come in handy.

It is no wonder that the circular intervention doctors at the Caroline Institute of Medical Surgery in Stockholm did not dare to do it, and they only knew that it was really difficult.

"Hey..." Zheng Ren seemed to hear a crisp sound.

The coronary artery has been worn out...

The blood is filled with hearts and minds.

If it is outside, the emergency department will be rescued. Open the chest and solve the problem of pericardial tamponade.

With Dr. Mehar's physical condition, clinical death can be directly announced.

Zheng Ren’s forehead sweated.

Surgery, failure.

Come again!

Another operation, failed five minutes later.

Come again!

In the system operating room, Zheng Ren focused on surgery, and the time lapse of the ectopic plane was completely unnoticed.

In a blink of an eye, 22 consecutive days of surgical training is over.

528 hours, 31,680 minutes, boring, boring training to do it in one breath.

Zheng Ren is not exhausted, but is full of excitement.

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

Don't eat,

Don't drink,

Endless,

Sleepless.

But the operation is still successful!

Not an accidental success, Zheng Ren has done 30 consecutive coronary occlusions similar to Dr. Mehar, with 100% complete surgery.

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

Because Dr. Mehar's abnormal coagulation status, it is not enough to open the coronary artery.

Zheng Ren absolutely does not want to have a successful operation. A few months later, Dr. Mehar will have to face the same problem again.

The opening of this time does not mean that the next time.

The trauma of surgery, no matter how high the level, will be left behind. And Dr. Mehar is still aging, and his body is gradually changing.

The next time, even Zheng Ren can't guarantee to be able to do the gyro success again.

Even if it is successful, it can only extend the patient's survival for several months, and then face the same situation endlessly.

Zheng Ren did not step down when the degree of surgery was 100%, but took a recyclable stent and studied it.

This recyclable stent is the most commonly used clinically.

Zheng Ren rarely considered it for a long time, and then he put the recyclable film stent into it.

The coronary veins of the experimental body were opened, and the residual red color of the experimental body on the system panel quickly subsided.

Surgery is here, it should be over.

However, Zheng Ren did not move, he was somewhat worried, worried that the big pig hooves could not comprehend their intentions.

However, worry is superfluous.

As soon as the mind was moving, the experimental body was lying motionless in the operating room of the system.

And the time seems to have been a few months, the stent is full of blood clots.

This is what Zheng Ren considers. Whether the patient can be regarded as a real surgery success depends on it.

He carefully opened the balloon of the retrievable stent and placed an absorber to open the frequency to a certain extent and absorb the dropped thrombus.

Take a little bit of the stent with a membrane, very careful, the level of surgery at the master level is still very difficult to do.

Unfortunately, no accidents, there are still blood clots falling off, flowing into other blood vessels, causing arterial embolism.

Reflected in the experimental body, the symptoms are cerebral infarction.

Although the surgery failed, Zheng Ren showed a smile.

It was the first time that he smiled after entering the system operating room.

There is no problem with the idea, but the operation method still needs to be improved.

This is fine, as long as the direction is no problem, everything is easy to say.

It is also an uninterrupted surgical training. Zheng Ren is very difficult even with a master level of surgery.

This time, it didn't take such a long time, 21 hours and 44 minutes of surgery training, Zheng Ren has been able to skillfully remove the stent with a thrombus, then the steps are simple, and then the next new stent is also.

The only problem with this new procedure is that patients are more expensive.

In a few months, the next stent is needed, and the corresponding drug is also taken orally for anticoagulant therapy.

But after all, there are ways, isn't it?

After nearly 10 hours, Zheng Ren skillfully mastered two kinds of surgery, and then smiled and left the system spaceIn the ward observation room of the Caroline Medical Surgery Research Institute in Stockholm, Su Yun also I was playing with my mobile phone and didn't know which girl to chat with.

The professor still has not returned, and several doctors are still concentrating on recording each value and conducting professional analysis.

Zheng Ren knows that once the condition changes, they will press the corresponding button to find the most professional doctor to dispose of Dr. Mehar.

However, these have nothing to do with Zheng Ren. He smiles, leans back and leans back into the chair.

See Zheng Ren finally moved, Su Yun put down the phone.

"Boss, no problem is it." Su Yun did not know where the confidence of the fans came from. This kind of surgery, which was difficult to do at the level of master craftsmanship, 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 sighed. "I will help the professor for a while."

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

"His mouth is more stupid than the waist of the cotton trousers. Of course, the quarrel won't win. I went to help him quarrel and get the surgery." Su Yun said with a smile, it seems that the mood is very good.

"Well, you have a lot of quarrels, go, I am here to wait for your good news." Zheng Ren took a lazy, lazy.

Su Yun’s face changed, is Zheng Ren blaming himself?

I have a hard time on my mouth, but my surgery is not working? !

But looking at Zheng Ren's look is not like it.

Su Yun’s heart is wrong... MD, we must re-run the human heart transplant surgery, so that I feel that my surgery is not working!