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?"
"Liu Jiequan finished the mechanical leg model today, 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 several people 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 chief surgeon and always wore 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 shock, and began to tremble all over." She looked at Liu Jiequan and Cao Gang as she said this: "Lao Liu and Lao Cao discussed it. It is said that it may be a circuit design problem, and after the nerve 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 they 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 - 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 are 3R cares, 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 intuitively see the reaction of the mouse."
"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 powered off." 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, looked at it carefully, and sniffed it again.
"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 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 mice "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 the most effective solution to this problem of not being able to find the BUG is to make another copy.
Ranwen
But how do you say that?
They are already ready to witness the miracle, how could Ye Ming be willing to give up just now...
Others, on the other hand, behaved unusually calmly.
After all, how can a national key project be so smooth?
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, it seemed that she had already 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 and said, "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 in 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 that 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."
"Just wait and see..." Ye Ming inserted the USB drive into the computer.
Very good, no viruses reported.
Then, he proposed all the neural signal data collected by Mo Gu 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 glanced 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 involves how to complete brain-machine 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."
"Holy shit, 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 method 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 Ye Dy is too special, it will take some time at Guoxin Wafer Factory, so it won’t be announced for a while. But this material paper will be published sooner or later, sooner or later.
Sheng Fei already has 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 can't 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 according to 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 passed 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 moment, 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 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 letting a mouse whose nerves have been cut off to move a mechanical leg, this is actually a result that has been completed for several years.
But it depends...how it is implemented.
You can also drive into town 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, in theory, 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 the 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.
