Military Technology

Seeing such a penetrating scene, everyone couldn't help frowning slightly, and their backs felt cold. Lin Wei and Zhou Xi hugged their arms even more, feeling a bit of coolness.

Seeing this, Qin Ziheng said with a smile: "The human tissues you see are actually related works printed by us through the biological 3D printer.

Of course, due to technical reasons, many of the printed ones are actually failures. "

Speaking of this, Qin Ziheng walked up to a glass transparent container, pointed to a complete liver inside and introduced to everyone: "For example, this liver is actually an artificial liver tissue printed by a bio-3D printer. Although its printed form is complete, it lacks activity, so it cannot be transplanted, so we made it a specimen and displayed it here."

Isn't this good, why is it failing. Hearing this, Zhou Xi looked at the very complete liver tissue in the container and couldn't help asking.

Qin Ziheng smiled and said: "The principle of our 3D bioprinting technology is to use human tissue cells to arrange and combine to form a complete tissue and organ.

In fact, all the organs and tissues of our human body are composed in this way.

However, our rapid printing may bring a series of problems, such as the relationship between printed cells and tissues, the activity of the cells themselves, and the function of this organ and tissue itself is healthy and able to operate.

As for this liver, because the printing time was too long, the first printed tissue cells died on a small scale, so it was not ready for transplantation, and it was supposed to be destroyed, but your researchers thought that the liver The inner shape was printed perfectly, so I proposed to make that model. "

Hearing Qi Xingyan's introduction, everyone nodded involuntarily. Indeed, 3D bioprinting of organ tissues is unimaginable in the future. As Qin Ziheng said, it is composed of individual cells, and the technical difficulty is definitely as complicated as I said.

In addition to the reduction in print size, you have also made a small improvement in printing speed. First of all, under the print nozzle, you have used a new generation of bio-cell print nozzle, its output is seven to ten times that of the next generation, and it does not mean that its printing speed is seven to ten times that of the next generation. .

As for Zhang Jun, he nodded slightly before listening to Qin Ziheng's introduction, and then walked out of a cylindrical glass container, and what was displayed outside was not a heart.

And now, your new generation of biological 3D printers has been enlarged several times under the printing size, and basically wants you to print any organ tissue of the human body, such as the relatively small lungs, liver, large intestine, and some small muscles. , bones and so on.

Because the stroke of the orbital coordinates is shorter, each print head is only responsible for the printing of one area, and it is necessary to retreat a small amount of movement, so the printing speed is faster. "Like your generation of bio-3d printers, it cannot support at least eight nozzles to print at the same time, which also means that its speed will be eight times faster than the traditional single-nozzle bio-3d printer, or even lower.

"Is that one printed too?"

Compared with the next generation of biological 3D printers, it has made a very small step back in technology.

Zhang Jun nodded, then turned to Qin Ziheng and said, "Let's go, I'll wait for you to visit their laboratory."

And if you want to retreat into that laboratory, you also need to wear the relevant lab coats, and you can only retreat through a cleaning and disinfection channel.

"Yes, those protruding blood vessels mean your tubular arterial tissue." Having said that, Qin Ziheng said to Zhang Jun: "You are worried, why have you not accumulated a lot of experience in blood vessel printing? Whether it is active or functional is very bad, it is completely worrying.”

"The bulge on the surface is not coronary artery tissue." Zhang Jun said looking at the heart.

Walking back outside the laboratory, everyone started to look at him in a nasty way.

If so, that laboratory will also arouse such a small interest in the country, and they will try their best to obtain related technologies. It will also make the security level so tolerant, which can explain the advancement and importance of those technologies.

Moreover, in order to meet the needs of printing some small-sized organs and tissues, you have used the design of fewer print nozzles under the new generation of biological 3d printers, which does not mean that the new generation of biological 3d printers cannot increase the number of print nozzles according to the printing task requirements , so as to take a step back and shorten the entire printing time.

First of all, it is not limited to the printing size. The printing size of the next-generation biological 3D printer is relatively unlimited, and the size and volume of the printed organs and tissues are relatively large. Therefore, only some large-sized organs and tissues can be printed. Small organs and tissues can be printed, or they need to be divided into several parts and printed separately, and then stitched together.

That also means that its printing time is shorter, and the printed organ tissue is fresher and less active. In addition, we cannot increase the waiting time for patients, and we cannot return urgent printing services for some critically ill patients, but let us retreat and wait.

Half of the heart was broken, and the other half was cut open, exposing the outer ventricles and new chambers without valves. The entire shape, structure, and organization are exactly the same as a real heart. If you knew it, you thought it was a real heart removed from the corpse~www.readwn.com~ Facing the curious crowd, Qin Ziheng said: He smiled at everyone and introduced: "That's not your No. 1 biological 3D printing technology laboratory, and the glass side is not your latest generation of biological 3D printers.

Hearing Zhang Jun's words, Qin Ziheng nodded slightly and said: "Yes, that is also a piece of heart tissue that you printed out to represent you. Like the liver tissue successively, it is also a victory product of the experiment. Its overall function is to perform. , so it was made into an exhibit and placed there.”

The two parts are blocked by a whole-body glass, and people cannot see the outside situation through the glass. But if you want to retreat, you have to go through another cleaning and disinfection passage.

"Bad." Qin Ziheng nodded, then led the way forward and backward. Immediately, everyone came to a very ordinary laboratory. The laboratory was divided into two parts, one part was darker, and various small screens were placed, and various data information and pictures were displayed below. The other part is relatively white, with a strong blue light scattered outside, and there is no smoke flowing.

Changing into special protective clothing and masks, Wu Hao and we finally retreated into that laboratory.