The success of animal experiments instantly inspired everyone's fighting spirit.
Everyone is working hard day and night.
Everyone knows that animal testing is only the first step, and the next human test is the biggest challenge.
The first human test, also known as the feasibility test, is very important to the project and determines whether it can obtain a pass for subsequent clinical trials.
Only if the safety and effectiveness of the equipment are proven can work continue.
Fortunately, cerebrovascular stent technology is very mature, and related interventional procedures have a history of nearly 50 years. Generally speaking, the safety is quite guaranteed.
All it takes is to make some improvements in the alloy material to make it a microelectrode that can collect nerve signals.
As for the neural chip implanted under the skin, it is very mini in size and wrapped in biological protein materials. It has high biocompatibility and is also very safe.
So, after a month of live recording and neural data transfer results, the application for the first human test was approved.
Upon learning of the good news, Chen Yiqing immediately held a project meeting.
He stood in the conference room, his face full of uncontrollable excitement, and while speaking, he waved his hands fiercely, seeming to strengthen his opinions.
"Everyone, from animal experiments to human testing, the brain-computer interface system is about to take a critical step."
"The first human test is the top priority and determines the life or death of the project. We must go all out and be fully prepared."
"While the device demonstrated excellent performance and data quality in monkeys, testing in humans is clearly a different story."
"Every step from design to execution of the entire experiment cannot be taken lightly. We need to design some new processes and algorithms, and add engineering components and computers. All these devices will be united to operate in real time and without errors. We collected Only the data can be used.”
"Also, this is our first human test, and it's difficult to predict what problems will arise in the experiment and what results will be produced."
Having said this, he looked over one by one and said slowly: "Everyone, please."
Wang Dali was the first to speak. He waved his fist and shouted excitedly: "Hahaha, we have finally reached the stage of human testing. I have many new ideas in my mind, and I can't wait to implement them."
"Okay, let's talk quickly. I'm so sleepy. I have to go back to the office to catch up on some sleep." Wen Renlong rubbed his eyelids, covered his mouth and yawned widely, and said lazily.
During this period of time, he abandoned his usual lazy style and stayed in the laboratory day and night, devoting himself wholeheartedly to it.
This morning, not long after I fell asleep, I was caught in a meeting. I didn't even get enough sleep. At this moment, I was exhausted and drowsy. Even the dark circles under my eyes were a little more obvious than usual.
Chen Yiqing glanced at Wen Renlong apologetically and said, "I'm sorry, I will finish speaking quickly and will not waste your time."
"Okay, the next important issue is the candidate for the test."
Wang Dali suddenly interrupted: "Aren't we looking for paralyzed patients? Do you still remember that Zhu Jun? He has been contacting me recently, and his attitude is quite determined. I think he is good."
Chen Yiqing glanced at him, hesitated to speak, and said after a while: "This is the first human test. I hope to get more comprehensive neurological data. It will be better if it is a healthy person."
Wang Dali said in surprise: "But who among healthy people would accept putting this thing into their brains? It's not just a matter of taking medicine for a few days. Although the surgery is very safe, the risks are still very high. It doesn't even cost money to do this kind of thing." People do it.”
Chen Yiqing shook his head and pointed at himself: "No need to find anyone else, I will do it myself."
"What?" Everyone else stood up and looked at him in shock.
"Chen Bo, this is not possible. You are the project leader. It is you who studies others. How can you study yourself?" Wang Dali said extremely seriously: "We should consider treating patients directly."
"Have you ever thought about it, we haven't tested it on people yet, we haven't collected enough neural data to establish a human movement model, and paralyzed patients can't move their limbs, so the accuracy of the data provided is completely different from normal ones. Comparable to others.”
Chen Yiqing said in a deep voice: "In other words, if we use normal people, we can get a correct answer directly. If we use patients, we will probably get a wrong answer at the beginning, and it will take a long time to correct the error. "
Wang Dali is still trying to persuade him to give up this idea: "Of course I know this, but the risk is too great. There is no need for you to experiment on yourself."
Even Wen Renlong couldn't help but say: "Old Chen, why don't you spend more money to hire someone? As long as we take out the equipment after the experiment, there will definitely be someone willing."
Wang Dali nodded quickly: "Yes, I can improve it and make a version of the experimental stent that can be removed. Moreover, with Dr. Jian in the cerebrovascular interventional surgery, there is almost no risk. In this way, we will definitely be able to find volunteer."
Jian Jian Yun originally wanted to say something, but after looking at Chen Yiqing's firm eyes, he knew that the other person's mind had been made up and it was difficult to be persuaded, so he couldn't help but remain silent.
Zhang Li was the only one sitting on the chair, and her expression remained unchanged, as if she had expected it.
Seeing everyone's reaction, Chen Yiqing couldn't help but smile and said, "Believe me, I have seriously considered every reason you mentioned."
"As a researcher, I have reasons to do this. Besides, the law does not prohibit scientists from conducting experiments on themselves."
"This..." Everyone looked at each other, not knowing what to say.
Chen Yiqing smiled lightly: "In that case..."
Suddenly, a voice interrupted him.
"I'll do it." Zhang Li stood up and said firmly, word by word.
"Chen Bo, I am also a scientist, and I am younger and have better physical fitness than you in all aspects. I am a more suitable subject."
Wang Dali was shocked: "No, are you neuroscientists so tough?"
He couldn't help but give a thumbs up: "Yes, he is a ruthless person. He always wants to do experiments in his own mind, and he is always trying to do it. Each one is more ruthless than the other. I really admire him, admire him!"
"Lily, no, you absolutely can't." Wen Renlong suddenly became very excited, stepped forward and grabbed Zhang Li's arm: "Don't be impulsive, we will discuss this matter again, no matter how much money you spend, it will be fine."
Zhang Li swung her arm but didn't move, so she had to say angrily: "Brother, can you please stop taking action? If you have anything to say, please speak slowly."
"No, I won't let go if you don't promise." Wenren shook his head like a rattle and spoke in a very firm tone.
Zhang Li rolled her eyes at him: "Brother, who are you? You are so lenient."
Jian Jianyun was also stunned. She looked at Chen Yiqing and then at Zhang Li. Their attitudes were similar and both were equally determined.
Her mind was racing, and she somehow started thinking about which one was more suitable for cerebrovascular surgery.
From the perspective of the surgeon, Chen Yiqing is 45 years old, and his body functions have begun to decline. The possibility of blood clots and hardening of blood vessels is increasing. The risks of surgery are much higher than those of Zhang Li, who is in her 20s.
"Hey, what am I thinking about? What time is it? I'm still thinking about surgery. I need to quickly convince these two people to give up their thoughts."
Jian Jianyun suddenly woke up and looked up, only to see four people talking to each other, expressing fierce opinions.
"This..." Seeing this kind of formation, she didn't like to quarrel. She immediately shrank her head and stopped talking.
Suddenly, there were two bangs.
Chen Yiqing slapped the table and said loudly: "Stop arguing, yes, I'm talking about you two."
"Anyway, Lily and I have to choose one. If it doesn't work, just vote."
Wen Renlong was like a duck being pinched by the neck. He suddenly lost his voice and sat back silently.
"Very good. The voting has begun." Chen Yiqing looked around, nodded with satisfaction, and said, "Those who agree to my being a subject, raise your hands."
The venue was quiet, no one raised their hand.
After a while, Wen Renlong slowly raised his right hand. As soon as he raised it above his head, Zhang Li glared at him, scaring him so much that he quickly put his hand down.
Chen Yiqing raised his left hand and recorded with his right hand: "One."
"Wang Dali, Doctor Jian, you two can't abstain, you have to show your support."
Wang Dali laughed dryly and said, "This happened so suddenly. I'm still thinking about it."
Chen Yiqing looked at him, smiled slightly, and said, "Since I only have one vote, the remaining four of you must be on Lily's side."
"Very good, no need to vote anymore. The voting is over. I have one vote, Lily has four votes, and she is the one who will be tested."
"What?" The others looked at him in shock, unable to react for a moment.
"It's just random. You're just messing around like this. I don't agree with it." A few seconds later, Wen Renlong was the first to object.
"Objection is invalid! I am the project leader and I have the final decision." Chen Yiqing suppressed him with unusual force.
"Okay, it's decided. Human testing will begin in the afternoon. Lily, please make preparations." Chen Yiqing looked at Zhang Li and ordered with a smile.
Wen Renlong saw the cunning look in Chen Yiqing's eyes, reacted instantly, and became furious.
"You two are working together and are making fun of me."
Wang Dali patted his head and suddenly realized: "Chen Bo, actually you have wanted Lily to be a subject for a long time. You were afraid that we would not agree, so you just came out like this. Wow, this skill is really good. This knowledge of opening windows I think you figured it out."
"I originally wanted both of us to abstain, but in the end, you saw through me." He sighed with regret on his face.
"Haha, I was afraid that you would abstain, so I did this." Chen Yiqing chuckled.
"Anyway, your performance just now has revealed your inner thoughts. Between me and Lily, you are more willing to choose her, so you didn't raise your hands when facing me. This subconscious performance is actually more true."
Wang Dali fell silent immediately. He had to admit that the other party was right. If he really had no choice, he could only vote for Lily. The reason was very simple and had nothing to do with age. It was just because Chen Yiqing was the project leader.
Jian Jian Yun on the side was stunned and speechless. She had indeed seriously considered it. She had to choose someone. She could only vote for Zhang Li. After all, the other person was young and an assistant, so he was not that important in the project.
Wen Renlong stopped talking. He could see that among the five people present, he was the only one who really opposed it. No matter how much he protested, it would be meaningless and he could only accept this reality.
"Then after the experiment is over, can the equipment be taken out? Lily can't keep this thing in her mind."
He asked one last question.
Chen Yiqing thought for a moment and replied in the affirmative.
"Don't worry, both the connecting cable and the neural chip can be taken out. As for the stent, I'm afraid it will grow with the blood vessel wall over time. It will be very difficult to take out, but the grid is very sparse, and the diameter of the large vein we implanted is relatively large. The overall risk is controllable.”
"That can only be like this." Wen Renlong sighed and reluctantly accepted the result.
He looked at Zhang Li, as if he were meeting her for the first time, and looked at her carefully.
The oval face that is not beautiful but quite attractive has no anxiety or worry at this time, but only excitement and expectation. The whole face is like white jade, glowing with a strange mixture of youth and knowledge. Beauty.
Wenrenlong looked at it again and again. For some reason, he couldn't look away for a long time.
"This woman is beautiful, but she's also really cruel." His whole body trembled, and this thought suddenly came to his mind.
****
Performing brain interventional surgery on humans is naturally different from that on monkeys. It cannot be done in a laboratory and can only be done in a qualified hospital.
Fortunately, Kunming First People's Hospital is a senior partner of Sanqing, and Jianlianyun is the second-in-command of the department. The brain-computer interface is a joint innovative scientific research project between the two parties. The hospital attaches great importance to it and dispatched the most sophisticated surgical team.
The surgery was minimally invasive and went smoothly.
From anesthesia to suturing, closing and opening the eyes again, it only took half a day.
Zhang Li was able to get out of bed and walk around that night, but as a precaution, she was kept in the ward for observation for another three days.
Three days later, when she was discharged from the hospital, the 2 mm wide incision on the back of her neck was almost healed.
During this time, everyone was busy installing large hardware facilities, designing new computer programs, and fixing various minor problems.
Just like that, it was time for the first human tests.
In the laboratory, Zhang Li sat quietly in a chair as usual, with a joystick, a flat-screen LCD monitor, and a juice supply machine in front of her.
The same video game starts with whack-a-mole, and even the actions are exactly the same.
She only needs to move her arms, grab the joystick, control the moving stick on the screen, and beat every gopher to enjoy the juice.
As long as she completes a critical attack, the juice machine will spray out a small cup of her favorite orange juice.
Not far behind, there are rows of computers and monitors on the workbench.
Her brain activity will be recorded and wirelessly transmitted to a computer for in-depth study.
Then according to the new algorithm, it is converted into a digital electrical signal and sent to the robotic arm next door to complete the same set of processes.
everything's ready.
(End of chapter)
