Ye Ming turned around and walked behind the screen, took out his white coat and put it on while following Gu Qin to the third floor.
"What's the trouble?"
"Today Liu Jiequan finished the mechanical leg model, and Mo Gu immediately led people to perform the surgery. As a result, the mouse reacted very abnormally."
"Hmm...what's her guess?"
"It may be due to electrical disturbance. I can't tell yet. There must be something wrong."
While the two were talking, they arrived at the biology laboratory.
After opening the door, I saw that in addition to those from Mogu Medical College, Liu Jiequan and Cao Gang, who worked under Lao Chen, were both there. These two were doctoral students who came in last year and were considered the main force in the work this year.
A group of people in white coats gathered around the operating table and discussed something in a low voice.
"Senior brother." Ye Ming said hello first, and then looked at Mo Gu.
She was the surgeon and had been wearing a mask. When she saw Ye Ming coming over, she took off her mask.
"Sister, what's going on?" Ye Ming looked at the mark on her nose and thought that the operation would probably take a long time.
"To be specific, after connecting the motor nerves, the mouse only moved once, as if it had been shocked by electric shocks, and began to tremble all over." As she said this, she looked at Liu Jiequan and Cao Gang: "Lao Liu and Lao Cao discussed it.
It is said that it may be a circuit design problem. After the neural signal is connected, a backflow occurs."
Ye Ming also looked at the two of them.
One of these two people is engaged in AI and the other is engaged in information technology, but both have PhDs and are obviously familiar with circuit problems.
"Can...can you do this again?"
"..." Mo Gu looked at the white mouse and frowned: "Okay, but I can only change one - why don't you check the circuit design?"
"Okay." Ye Ming looked at the white mouse tied with gauze on the stage, thought for a while and nodded.
Although he thinks his circuit design is definitely fine.
This is the trouble with biological experiments. It is not like running software. You just change a few lines of code and run it again. If it is not ideal, you will have to try again...
It's nothing more than finding bugs, and all it takes is time.
But biological experiments... Although there is 3R care, such living experimental animals cannot be used as consumables without restrictions.
Not to mention that the surgery itself is tiring.
…
Mo Gu and the others went to rest here, and Ye Ming brought the circuits and models and took Liu Jiequan and others to have a small meeting next door.
"This is the video of the surgery just now. Take a look." Gu Qin waited until several people discussed it for a while before walking over with a notebook: "You can see the reaction of the white mouse very intuitively."
"Okay, thank you!"
Ye Ming clicked on the video and saw that the video was two hours long. He knew that Mo Gu and the others were well prepared this time and probably wanted to launch a sprint...
Sure enough, in the video, Liu Jiequan and the others were present from the beginning, probably intending to witness the miracle.
As the video played, Ye Ming also saw these people chatting easily at the beginning, becoming nervous and silent at the end, and finally the mice shaking violently...
"It's just that the power has passed." Ye Ming paused the video.
"Are you sure?" Liu Jiequan asked, and he smiled: "Although I also think it is over-voltage."
Ye Ming smiled and nodded: "I'm sure...because I was beaten with electric shock when I was a child, and it was exactly the same as this."
Everyone: "..."
After laughing, Ye Ming picked up the line and looked at it carefully, and then sniffed it.
"Has the chip been checked? Is it burned?"
"I didn't smell it. I just checked it with a multimeter and it seemed like there was no breakdown."
"Um……"
Ye Ming looked at the mechanical part again.
This circuit is divided into three parts. The first part is the GTRGD drive circuit part. Because it has not been completed on a chip, it is still a "big lump". It even becomes more lumpy because of the addition of electrodes.
The second part is the signal conversion circuit, which is composed of a PCB board and several chips. The core is a single-chip microcomputer to complete the translation and conversion of neural signals.
The last part is the mechanical part.
This was designed by Ye Ming himself. The four robotic arms were one size smaller than the ones he designed before, completely simulating the leg joints of a white mouse. At this time, they were cleverly fixed on a plastic cylinder the size of a winter melon by Liu Jiequan.
The idea behind the experiment is that once the nerve connection is completed, the robotic arms will be able to move as long as the mouse "want" to move.
"I'll give it a try with a multimeter."
An hour later, Ye Ming returned to his office holding this large pile of circuits.
It stands to reason that for this kind of problem where the BUG cannot be found, the most effective solution is to make another copy.
Ranwen
But how to say that sentence?
They were all ready to witness the miracle, how could Ye Ming be willing to give up just like that...
Others, on the other hand, behaved unusually calmly.
After all, how can a national key project be so smooth sailing?
Besides, their progress has been extremely rapid.
Back in the office, Ye Ming rummaged through the drawers and finally found the Yinta brand super multimeter he made during last summer vacation in the corner.
After letting Yin Ta intervene, Ye Ming quickly found the problem. There was a section on the back of the PCB where the diode should be connected, which was directly connected.
…
8pm.
Mo Gu held the USB drive and came to Ye Ming's desk.
The strangulation marks on her nose were long gone, and judging from her appearance, she seemed to have taken a shower, washed her hair, and even changed her clothes - this was like going out on a date!
"Are you sure you can simulate it?" She looked at Ye Ming with confusion.
Ye Ming chuckled: "Of course - Sister Mo, are you going on a date?"
Mo Gu immediately rolled his eyes: "A date? Are you dating me?"
"Uh... Okay, I'll make an appointment with you." Ye Ming took the USB flash drive: "I'll make an appointment with you to witness the miracle."
"..."
"By the way, does your USB flash drive have a virus?"
"It's your USB flash drive that has the virus. Your sister and I are very clean inside the USB flash drive, except for data, it's just data." Mo Gu said and sat down on the sofa, looking at the robotic arm Ye Ming put on his desk - oh no,
It should be a mechanical leg, or a bionic leg. Without blinking, he said: "Let me see if there is any miracle."
This chapter is not finished yet, please click on the next page to continue reading the exciting content! "Just wait and see..." Ye Ming inserted the USB flash drive into the computer.
Very good, no viruses reported.
Then, he proposed all the neural signal data collected by Mogu and the others in the past six months, and then connected them directly to the signal conversion module through connections, bypassing the material chip part.
"It's begun!"
Mo Gu crossed his legs, held his chin with his hand, and glanced at Ye Ming with a smile.
"Hey, you don't believe it..."
Ye Ming clicked the mouse, and then a bionic leg on the desk kicked up continuously.
"Fuck!"
"Haha! Come again!"
As Ye Ming finished speaking, the four bionic legs shook violently at the same time!
"Perfect!" Ye Ming put his hands on his waist and laughed.
Mo Gu stood up instantly: "Let's go! Get on the operating table! I still don't believe it!"
…
As everyone gathered around the operating table again, Mo Gu also put on his gloves again, rolled up his sleeves, and picked up the scalpel.
The rest stayed far away.
"Even if it succeeds today, it is only the first step. It can only mean that exoskeleton assistance can be achieved by connecting nerves."
Ye Ming, Liu Jiequan, Cao Gang, Gu Qin, and Sheng Fei and others who came after hearing the news sat at the door with small stools.
Ye Ming looked back and whispered: "Neural connection is a medical field and has nothing to do with us. What we want to fight is the brain-computer exoskeleton."
Everyone nodded in unison.
"But this also involves how to complete brain-computer collaboration without damaging nerves." Sheng Fei's biological theory is much more solid. He raised his head and glanced at the operating table, and whispered: "We still cannot do without medicine."
"Well, nerves themselves have self-healing properties. Mo Gu and the others have already tested them, and the paper is ready to be published."
"Damn, you move so fast!"
"Yes, so we have to speed up. When we develop the chip in the next stage, we will use it on large mammals and use hydrogel at the same time."
Sheng Fei nodded his head like a chicken pecking at rice.
Although the molecular formula and preparation methods all come from Ye Ming, insulating hydrogel materials are his subject, and he is doing the actual work and writing the paper... In other words, he will get a share of the paper when it comes out. .
It's just that because the material of Dysprosium Ye is too special, it will take some time at Guoxin Wafer Factory, so it won't be released for a while. But the paper on this material will be released sooner or later, and it will be released sooner or later.
Sheng Fei has already completed his fourth degree. He is no longer a newbie in scientific research. He has the mentality and can afford to wait.
"Then, the next experiment cannot just use four legs - because our fundamental purpose is to let the release robot arm replace the limbs, so there are only two plans now."
Ye Ming looked at the four bionic legs that were suspended on the operating table: "Either add an automatic stabilization system and let the system cooperate with biological signals to complete the stabilization, or add a feedback system to simulate biological signals and let the brain act accordingly based on the feedback. The flexibility of the arms and fingers is fully matched.”
The others nodded again.
"In addition to motor nerves, there are also visual nerves, auditory nerves... In short, all neurological fields must be studied!"
Time passes quietly.
As Gu Qin wiped away the sweat from Mo Gu, Ye Ming also connected the drive circuit.
"That's it." Mo Gu stared at the microscope and said solemnly: "Let's continue with the post-operative treatment."
After wrapping gauze on the mouse's wound, she let out a long breath.
"wake."
When everyone heard her, her voice trembled.
After a while, one of the bionic legs suspended in the air moved slightly.
Immediately afterwards, all the bionic legs started to move.
"Done!"
She pulled off her mask and jumped up instantly.
…
…
The news that the joint research team had completed the first phase of the project quickly spread throughout the academic circle, just like a stone thrown into a calm lake, and soon set off waves of discussion.
Frankly speaking, if we just look at the phenomenon of getting the nerve-cut mice to move the mechanical legs, this is actually a result that has been completed for several years.
But it depends...how it is implemented.
You can also drive into the city with a tractor.
But how does it compare to a car?
This is the first time in the medical field that GTRGD materials have been used in brain-machine integration.
As Ye Ming put forward in the discussion, the biggest advantage of GTRGD, a neural material, is non-destructive fusion.
In other words, theoretically, it can achieve lossless connection to nerves.
——To give an inappropriate example, if the human nerve is compared to a cable wrapped with insulating rubber, then GTRGD material can peel off the insulating rubber, and then connect another wire to complete the circuit. One-for-two design!
This really means that there are infinite possibilities in the field of brain computers.
Brain-computer chips also have an unlimited market.