David Hawley went out of the cabin and checked the MDM, which could not be repaired, only replaced.

Fortunately, Russia's Soyuz rocket was extremely powerful and unequivocal, and it completed the docking in three hours and forty minutes, completing a space delivery mission.

Finally, David Hawley and the Russian cosmonauts, relying on safety ropes, completed the spacewalk, replaced the electrical components, and the power system was guaranteed.

The whole process took a full five hours.

Stable voltage, so that the operation of the robotic arm without the worry of downtime.

The operation can continue to begin, but there is not much time left for Yang Ping.

On the angiography of the whole cerebral angiogram, the microaneurysm has expanded to the limit and bursts at any time, the second has begun to expand rapidly, and the third is also hidden and looming.

IBM's Wall is not wrong, there is indeed a second aneurysm, Yang Ping is even more wrong, and the third is already looming.

"At the rate at which he first entered the vascular network in his brain, it would take at least half an hour to solve an aneurysm, and now there are three, which is completely insufficient." Johanneson was also worried, after all, it was now three, and it had to be solved at once.

The left femoral artery, the right femoral artery, the left radial artery, all three arteries are punctured at the same time! Yang Ping ordered Susan to change the apparatus.

Piercing at the same time? Is this going to put in three guidewires at the same time? How could it be.

Massimo looked at the screen, then looked around the hall, surprised that he wasn't alone.

But Yang Ping's voice came out of the radio like this: piercing from three parts, and putting in three micro wires at the same time.

At the same time, three guidewires shuttle through the human blood vessels, enter the intracranial vascular network, and finally reach the target arterole.

This requires the surgeon to be extremely familiar with the patient's intracranial vascular access, tens of thousands, hundreds of thousands, millions of blood vessels, how to intertwine, how to bifurcate, how to form circuits, no one has anatomical knowledge to do this.

The surgical robot has four robotic arms, and only one robotic arm is needed to complete the intervention, so it would not be a waste of time if the surgery was performed in parts.

If three robotic arms are operated at the same time, the operation time is short, and the risk of surgery is minimized in a sense.

But three guidewires come in at the same time, which is a fabulous operation.

In interventional surgery, there are also those that enter two guidewires, such as the two-guidewire technology of cardiac intervention, which is completely different from the current three-pronged approach.

In cardiac intervention, there is a double guidewire technique, such as percutaneous coronary artery intervention, along the first coronary guidewire, and then put in a 0.36 mm coronary guidewire, which can stabilize the guide catheter and help the balloon and stent pass through the lesion, which is the partner guidewire technology.

During percutaneous coronary treatment of bifurcated lesions, in order to protect the coronary artery branch vessels, a coronary guidewire is placed, and after the stent is released, the guidewire between the blood vessel wall and the stent is withdrawn, which is called the protective guidewire technique.

In percutaneous coronary therapy for chronic total occlusive lesions, when the first guidewire enters the subintimal space, it remains in situ as a false lumen landmark, and then a second stiffer guidewire is sent into the true lumen, which is the parallel guidewire technique.

Regardless of the dual guidewire technique, the other is adjunct, not the three guidewires treating different targets independently.

But Yang Ping seems to be doing this now!

It is already difficult for a guidewire to be safely delivered to the arteries in the brain stem, and now it takes three to shoot at the same time, and it cannot be repeated, crossed, or touched on the path passed.

Professor Eugene switched places with someone else, sitting with Johanneson and Massimo.

"Are you sure he set off at the same time for all three puncture points and operated on at the same time?" Massimo asked.

"It shouldn't be possible, two of the guidewires should be the same as our dual guidewire technology, playing a supporting role, right?" Eugene Judgment.

"No, just now Dr. Yang said that three guidewires should be operated independently at the same time, each with its own goal, and he wants to solve three aneurysms at once." Although Johannesen didn't believe it, he did hear Yang Ping say this just now.

He is ready to embolize three aneurysms at once, and at the same time, yes, at the same time, it will be the first in the world.

Three manipulators operate independently, and the remaining one manipulator assists, what an international joke.

While everyone was puzzled, all speculation was no longer necessary.

The three guidewires, under the control of the robotic arm, have begun to enter along the blood vessels at the same time, over mountains and mountains, long distances, and step by step towards the intracranial vascular network, they start from different paths, and they have nothing to do with each other.

All roads lead to Rome!

The same is true for the blood vessels of the human body, and the true meaning of intervention has been mastered by Yang Ping.

Ink-like image of a whole brain angiography, with three guidewires racing along the blood vessels as if in a race.

This extremely smooth loach guidewire is very handy in Yang Ping's hands, every time it touches a fork, no matter whether the angle of the fork is obtuse, acute or right, the magic guidewire can be easily crossed.

The three guidewires are like a flexible snake, and every superselection is so magical and wonderful.

However, the three filamentous snakes entered the depths of the human brain, along the complex network of blood vessels.

The operation demonstrated on the whole screen is like a game, the greedy snake swims dexterously, which makes the audience extremely uncomfortable, and some people feel that the three tiny things are swimming in their body, causing bursts of pore spasm and scalp numbness.

The largest aneurysm may be approaching its limit, and GG's artificial intelligence is constantly flashing red lights to alert you that blood vessels may explode at any moment.

And the second one has already swelled, and the third rudimentary form is expanding faster than the first two.

There is a limit for the guidewire to enter the blood vessel, this limit is not only related to the thickness of the diameter, but also related to the accuracy of the doctor's control of the guidewire.

Not all target vessels are reachable, and not all aneurysms are suitable for intervention.

"Three guidewires went into the skull at the same time? Pointing to three different aneurysms. Massimo finally believed that this was a high-dimensional creature that he couldn't match.

Three guidewires come in at the same time, no doctor in the world dares to do this, and no doctor can do this, but Steven needs to do it now, this is the only hope.

If it weren't for an accident, Dr. Yang would have had enough time to solve the aneurysms one by one, but an accident took more than five hours, leaving him with only one hour, perhaps not even an hour.

He had nothing else to do but take a three-pronged approach.

The natural advantages of the robotic arm are exerted to the extreme in Yang Ping's hands, just like any other instrument in his hands, it will inevitably be exerted to the limit.

The thinner the inner diameter of the blood vessels, the more complex the mutual traffic and the more difficult it is to identify the path.

For some well-known blood vessels, the sinking progression is very simple, but now the blood vessel that Yang Ping wants to enter is already an innominate artery, and the sinking progression has no idea how many layers.

This kind of intervention, being able to find the target blood vessel clearly without getting lost, is one of the few in the world, Massimo is one, but he just touched the handle of the door.

At this time, the surgeon is required to study the cranial brain, especially the cerebral stem blood vessels, more than all existing anatomical studies.

No doctor can achieve this level of anatomy, surgery, interventional, and internist can't do it, and professors who study human anatomy in medical schools can't do it, which requires researchers to have a large number of "general teachers" to study, and no one has this condition.

The total length of blood vessels in the brain, the arteries and veins and capillaries, the entire vascular network is drawn into a straight line, which is 1.6 million kilometers, and the circumference of the earth is only 40,000 kilometers.

The study of this vascular network is far from enough, and it is still stuck on some main roads.

From the centimeter level, to the millimeter level, and then to the sub-millimeter level, the three guidewires continue to sink, and it has to reach the target and complete the task in the last half hour.

This is its only chance, and its last chance.

Massimo curled up, in the warm hall, he was like a patient with a high fever, and the cold hit him one after another, spreading quickly throughout his body, and if he could, he wanted to wrap himself in a thick quilt.

High tension consumes not only adrenaline, but also a lot of calories due to the evaporation of sweating water and the excessive and continuous contraction of muscles.

"He really solved three aneurysms at once, he really manipulated three guidewires at the same time!" Massimo muttered to himself.

Johanneson saw Massimo's eyes, which were the way he had been, empty, as if all the splendor and glory of the past had been in ashes.

"As I said, he's one dimension above us." Johanneson is relatively composed, having already been through a ordeal.

Dr. Eugene is no better than Massimo: "He operates four robotic arms with two hands, three main knife arms, and one assistant robotic arm. ”

Dr. Eugene's words reminded everyone that these four robotic arms were operated by Yang Ping's two hands.

But there is not the slightest rhythm disjointed, every time, one guidewire wants to slow down and pause when it crosses the fork, and the other two rush at high speed, and the other guidewire meets the fork pause, just stop the guidewire has completed the turn, over the fork.

Just like an acrobat, throwing a few balls at the same time, Yang Ping manipulates four robotic arms with two hands, there are always two robotic arms moving, two robotic arms are resting, and rest is not resting, but a pause and turning for every high-risk overselection.

The robotic arm that rotates at any angle makes the guidewire more flexible than manual manipulation.

The guidewire speed is getting slower and slower, but it never loses its flexibility and precision.

Because the blood vessels are getting thinner and thinner, any rough operation will be fatal, and any speed and magnitude will make the guidewire difficult to control due to inertia, so it must be slow now.

At the same time, the longer the guidewire is released, the more difficult it is to control the direction of the tip.

The blood vessels are getting thinner and thinner, and the guidewire is constantly sinking, like a submarine sinking deeper and deeper, until it sinks to the deepest seabed.

The deeper, the finer, the more dangerous and difficult it is to control.

This deep, this sinking, there is no turning back, it is either successful or fatal.

This is the reason why Yang Ping is reluctant to operate when the voltage is unstable, he must kill with one blow, there is no chance of turning back, there is no possibility of remedy.

Success or failure, just this once, life and death, just this chance, have sunk deep into the blood vessels of the level of the brainstem, and there is no chance to withdraw the guidewire.

"He still hasn't lost his way, and in the labyrinthine network of blood vessels, each of them is following the nearest route."

Massimo didn't even dare to breathe too fast and too fast, this was the most critical moment, he used the thinnest guidewire, with the help of various auxiliary equipment, to intervene in the monkey's intracranial brainstem life center blood vessels, here, I don't know how many monkeys are fatal.

On the huge, clear screen, three filamentous snakes meander and twist.

Everyone held their breath, they had gone so far.

At this point, don't go wrong!