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Chapter 489 Blood pressure monitor, make a magic version! (Bugfield leader adds update 8)

 Trapping the spy was a great success!

With a pet peeve gone, Grete was able to happily continue to visit the booth. He took out a large amount of gold coins, packed up half a ton of rubber balls (and settled on a ton of rubber for the coming year), and bought a whole cart of branches.

Branches and leaves, flowers and plants, various animals:

There are small clusters of white flowers, branches with soft leaves, and gray bark peeled from the trees, which is said to be used by the locals to treat swamp fever;

The brightly colored frog, the slurry extracted from the frog's body, can paralyze and paralyze people;

Palm-long, fist-thick, brown fruit as hard as wood, with a bunch of bean-shaped seeds clustered inside;

There is also a brown flower that is regarded as a "sacred flower" by the natives of the New World, which can rotate around the sun...

Of course, in the end, Grete asked the Archmage to help him find the owner of the long skirt and asked if he could let Cerela try on the skirt. If the size was right, it would be best if he could buy it.

When he asked what kind of decoration the skirt was made of, the seller responded readily:

"Jade bug! Oh, that is a local bug. It is very beautiful and is called the 'rainbow eye'. This skirt is decorated with its elytra. It is said to be the wedding dress of a princess. Three hundred female workers

I did it for a whole year..."

"Ah! Take it away! Take it away!"

Miss Silver Dragon jumped back reflexively. Such a beautiful decoration is actually an insect carapace! That kind of small and dirty thing!

Think about the feeling of wearing a skirt, as if your whole body is crawling with bugs, and your whole body is not good!

Although she wasn't afraid that these bugs couldn't hurt her, it was just a mouthful of dragon's breath, but it was so disgusting!

She jumped out so fast that she even overturned the tea tray in front of her, and the tea flowed all over the table. Cerira ignored it and turned around and ran away. Gretel smiled apologetically and spread her palms. The seller laughed in understanding.

:

"Ah, normal, young lady?"

The two parties shook hands, exchanged contact information, and agreed to visit frequently in the future before ending the exhibition. After leaving the exhibition hall, Grete did not return to the hospital, but rushed to the mage tower in a hurry:

"Mr. Norwood! Mr. Norwood! Please do me a favor!"

Mr. Norwood emerged from the laboratory. This magician of the transformation system, after following Gretel, things turned around, he successfully passed the level, and advanced to the fifth level mage. Currently, he is in high spirits, leading two apprentices to immerse themselves in research, and is heading towards

Sixth level march.

After staying in the mage tower for nearly a year, the white hair on his temples has become less, his waist is straighter, his walking is brisker, and his voice is louder. When he looked at Gretel, his eyes were bright and enthusiastic.

Full:

"Mr. Nordmark? What's the matter?"

The boss has summoned!

There’s a new topic!

You can publish papers again!

Master Nordmark is very generous. For the topics he throws out, he can assign at most one corresponding author, and maybe not even the corresponding author...

"Look at these rubbers!" Gretel summoned two mage hands, enlarged and bold versions, and held them together. He patted the space bag and poured out a handful of rubber balls:

"Please help, treat them with sulfur, make them into air bags that can be held in one hand, and then connect them to a tube, and then connect them to a long, thin air bag..."

Gretel continued to write and write, and told Master Norwood the general structure of the inflatable parts of the old mercury sphygmomanometer. Master Norwood squeezed the rubber ball and nodded:

"I know that sulfur treatment is used, and "The Philosopher's Stone" has published relevant papers. Unfortunately, the products are bulky and cumbersome, and the long tubes and thin sheets are a bit troublesome. What you want, boss, needs further research. When do you want it, boss?

"

"The sooner the better... uh..."

Gretel's voice became smaller and smaller. Although he was not in materials science, he also knew that the four major sinkholes in biochemical environmental materials could not produce results casually. Researchers should work hard, and bosses should also be more patient.

.

Relying on a transformation mage and two apprentices, if you want to raise demands today and have results tomorrow, wake up, the demands are too high.

"It doesn't matter, I'll try a few more sets." Master Norwood took on the task understandingly:

"Boss, is it enough to just use sulfur? Do you need to use anything else? How much sulfur do you need to add? You saw the archmages processing it at that time. How did it do it? Does it need to be heated?"

Gretel almost ran away. When he was in the dwarf kingdom, he was responsible for coming up with an idea, and the Archmage of the Change Department was responsible for handling it. He actually watched the process. Basically, sulfur flew up, rubber balls flew up, and were hit by a

Invisible hands knead, fuse, stretch...

Then there was nothing more. Then, the gaskets, sealing rings, and various other things that Grete needed were all made. There was no such thing as temperature control or material proportions.

Gretel had no choice but to think of a solution on his own. He counted them one by one with his fingers:

"You don't have to use only sulfur, you can try all kinds of sulfur compounds;"

"The dosage of sulfur...you can try it from 1% to 40%. Different dosages seem to produce different rubber;"

"Temperature... it can also be immersed in a sulfide solution, vulcanized at room temperature, or hot vulcanized... I don't know the specific temperature, but you can try it in hot water, steam, or hot air;

"

"You can also try adding something else, for example, the nitrocellulose I made some time ago..."

I understand, the boss has an idea, but he is not sure how to achieve the effect. As for the operational ability, let alone talking about it. Master Norwood nodded, took the bag of rubber, shook off the draft paper, and drew a picture of the boss.

lattice:

"Go check the papers first!" he shouted to his two apprentices:

"Angela, go check the paper! Berry, go buy all the rubber products on the market! Speed ​​up!"

The two apprentices agreed. One ran out of the mage tower, summoned a magic horse, and rushed to the trading hall of the White Tower; the other ran to the information center of the mage tower to find Mr. SS and look through the list of papers.

Mr. Norwood himself raised his palms, which were covered with rough calluses and no longer cracked, and began to scratch his head:

Hey, how many combinations are there of different compounds, different dosages, different ratios, and different temperatures...it must be at least thousands, right?

I don’t know if the boss will agree to recruit a few more apprentices...

No, the boss will definitely agree. The boss doesn’t care about this. The key is whether Mr. Lin En will agree and whether the income of the Mage Tower can sustain it.

You know, cultivating a transformation magician is just a matter of piles of materials!

Mr. Norwood rolled up his sleeves and began to make an experiment plan, make a list of materials, gather the experimental equipment, and get ready to work. Cerira followed curiously, looking left and right. For a long time, she couldn't figure out what was going on, and then

Go back and ask Gretel:

"Gretel, what did you ask him to do? What...is this thing for?"

She was holding the decomposed diagram of the design and was swiping it, making a lot of noise. Gretel had come up with something new again! After throwing herself in the hospital and crawling alone on the top of the mountain for so long, she finally came up with something new!

"This... Oh, sphygmomanometer." Gretel was concentrating on cutting open the chest wall of a dog. After a while, he glanced back. Absently, he threw out a name and returned his attention to the operation:

All the blood samples were placed in the Tower of Sleeplessness. He didn’t want to draw blood one by one in his mage tower, try to cross-match blood to test blood types, and then use [identify bloodline] to draw signal diagrams. He had no choice but to collect the blood samples he had received at the hospital before

When I finished half of the experiment, I picked it up and did:

Making a model of patent ductus arteriosus in dogs.

Thanks to the rabies research institute, the council caught a lot of rabid dogs for him. Naturally, they also caught a bunch of normal stray dogs. As the owner of the hospital and the leader of the project, Grete rubbed two dogs to make animal models. Then

It's not a problem at all.

Unfortunately, all previous experiments failed.

I hope it will be successful this time. Gretel's men steadily cut open the dog's skin, subcutaneous tissue, and muscles, used a thoracotomy to open the ribs, cut the upper pericardium along the vagus nerve, and exposed the pulmonary artery...

Serira looked at the side and didn't dare to breathe. She automatically stood farther away and put on a mask. After a while, she saw that Gretel had separated two blood vessels and stopped to take a rest. She quickly raced against time to ask:

"What is blood pressure?"

"It's the pressure of the blood." Grete stared at the yellow dog's jugular vein that had been separated and exposed, thinking about how long to cut it. After hearing Serrela's question, he pointed at the mediastinal pleural wall layer and cut it.

After opening, the descending aorta has been exposed:

"When the heart beats, it puts a lot of pressure on the blood and shoots it into the arteries. The arteries contract step by step to provide pressure, so that the blood can be sent to all parts of the body. I made this thing to measure the pressure of the blood.

.”

Serira popped up a secret eye and stared at the slightly beating blood vessels, looking curious and nervous. Gretel pointed to that section of artery:

"If you insert a tube into it and connect it to an upright glass tube, you will see how high the blood keeps going up, which means how high the blood pressure is. But in that case, you may need a

A glass tube two to three meters high..."

A smile appeared at the corner of Grete's mouth. The blood pressure of 130 mm of mercury is approximately equal to 1767 mm of water, which is 1.7 meters. If unfortunately, this patient's blood pressure reaches 230 mm of mercury, then the glass tube will need 3 meters.

How high.

Such a tall glass tube is not troublesome, right? If the glass tube is thin, it is possible to suck blood up by capillary action alone; if it is thicker, for example, a tube with a diameter of 1 square centimeter, one stroke is 170 ml, or even 300 ml.

.With so much blood rushing out, how can it be stuffed back into the blood vessels?

...Speaking of which, back then, the doctor who first measured the animal's blood pressure drew 270 centimeters of blood from the horse's carotid artery. Did he get it back in the end?

"If you don't want such a tall glass tube, you have to use a U-shaped tube and put mercury on the other end. But mercury is troublesome and highly toxic. It's best not to use invasive ones..."

"Then, why can't we use magic?"

Grete was stunned. Cerira pointed at the beating blood vessel, and gently pressed down with her white fingertips, as if pressing a column of blood spurting out of nothingness, feeling its pressure:

"Is it possible to use a tube and insert it directly into the blood vessel, and connect the other end to the magic array, so that the amount of pressure it receives can be directly displayed by the magic array?"

Gretel:???

Very good, girl, are you a self-taught person and can you directly come up with invasive blood pressure monitoring?

It's a good idea. I'll ask later if there is a magic circle that directly displays pressure...

****

3000 words!

Another update completed!

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