Chapter 122 Intravenous injection was also possible in ancient times (still combined)

Chapter 122 Intravenous injection was also possible in ancient times (still combined)

"Intravenous injection?"

Hearing the word coming out of Xu Yun's mouth, Lao Su blinked blankly:

"Wang Lin, what is that?"

Xu Yun thought for a while and explained:

"Sir, whether it is a human body or an animal, there are channels for transporting blood in the body. You should know this, right?"

Lao Su didn't hesitate much this time and nodded:

"Of course."

In ancient China or in the concept of traditional Chinese medicine, blood vessels and meridians should be regarded as a very controversial point that can easily cause disagreements.

There is a standard explanation for the description of meridians in traditional Chinese medicine, which is ‘a few inches under the skin, which can ventilate Qi and blood’.

Therefore, some people think that the meridians are the main blood vessels and the collaterals are the capillaries.

Meridians.

In fact, it is the concept of blood vessels defined by modern medicine.

But some people have a negative attitude towards this.

They believe that the meridians are the channels through which Qi travels, which are invisible to the naked eye. They just happen to overlap with blood vessels in some locations.

Once the issue of meridians is extended, further controversy will easily arise over the existence of acupuncture points.

Acupuncture points are the same as meridians. Currently, there is no real evidence to discover their existence.

This is also a big reason why many people have a negative attitude towards traditional Chinese medicine. Why can you say that there is something that cannot be found?

But on the other hand.

There are some acupuncture points in life where you can really feel the effects personally.

For example, Zusanli, Fengchi, Shaoshang, Hegu, etc.

Many times if a person feels uncomfortable, pressing these acupuncture points can bring quick results.

In addition, in recent years, research on meridians has produced some results.

For example, at the end of October 2021, Harvard University published a successful case of electroacupuncture stimulating the Zusanli acupoint of animals to treat sepsis in "Nature",

Paper code doi.org/10.1038/s41586-021-04001-4.

In 2019, ScienceAdvances also released a research report on acupuncture points, DOI: 10.1126/sciadv.aax1342.

all in all.

At present, there is no final conclusion on the meridians and acupoints of traditional Chinese medicine. After more than ten years of relevant research, there is still no accurate statement on the specific locations of the meridians.

This is a fact, there is no need and cannot be denied.

But again.

The real effects of some acupuncture points are also very obvious, which cannot be ignored.

The current scientific theory is still in development, and there is still a long way to go.

To put it bluntly.

Current science cannot even explain why a bicycle does not fall sideways after being ridden.

Relevant papers were published in the main journal of Science, and the impact of this paper lasted for nearly ten years, DOI: 10.1126/science.1201959. (I’m not lying, this is true. If you are interested, you can search it)

Certain technological developments and scientific explanations of certain phenomena are two different things and cannot be generalized.

His eyes returned to reality.

Regardless of whether meridians exist or not, in the "Huangdi Neijing", ancient ancestors already had a certain understanding of anatomy. This is a record that has actual records. After all, you can see blood vessels when you kill a chicken.

Therefore, after Xu Yun introduced the concept of blood vessels, Lao Su easily accepted the concept.

Then Xu Yun paused and continued:

"A vein is a very thick, large-capacity blood vessel that collects return blood to the heart.

It is an important channel to complete the systemic circulation, that is, the circulation of the human body.

Intravenous injection refers to injecting diluted garlic juice into the human body through a special instrument.

The medicine can reach the affected area directly, which is more effective than oral administration and external application. ”

When Lao Su heard this, he couldn't help but lower his head and touched the veins on his hands.

In modern medicine, injections mainly include subcutaneous injections, intravenous injections, and chicken and intramuscular injections.

Due to its chemical properties, allicin is not only ineffective when taken orally and injected subcutaneously or intramuscularly, but it can also easily cause harm to the human body.

Therefore, in modern medicine, the main injection method of allicin is basically intravenous injection.

However, there are not many allicin injections on the market at present. There are only about three or five companies, and most of them are capsules.

As an outstanding scientist in this era, Lao Su is naturally not lacking in creativity and acceptance.

After getting Xu Yun's reminder, some records quickly came to mind.

I saw him pondering for a moment and said:

"I remember that there is a record in the "Three Kingdoms" written by Chen Shou of the Western Jin Dynasty. An unknown doctor once scraped the bones of Guan Gong to treat poison.

In the Lingshu Chapter of Huangdi Neijing, there are also records of ancestors prescribing medicine for finger bones.

But injecting garlic juice into the so-called vein and reaching the affected area through the daily circulation is something I have never heard of.

Xu Yun, let me ask you this.

If the drug can really take effect by injecting it into the human body, then what disguise can be used to accomplish this? ”

Xu Yun thought for a while and made a shape with his fingers:

"A long, thin, hard thing called a syringe."

Lao Su was stunned for a moment.

Long?

Thin?

Hard?

Still doing real poking?

Could it be that I heard it wrong before? That procedure is actually called stem pulse injection, and it goes through the perineum?

True poke and stem pulse, combined with Xu Yun’s background as an actor.

hiss!

Think of this.

Lao Su looked at Xu Yun and suddenly felt something was wrong:

Could it be that the Fengling Yueying Sect was from the Hehuan Sect?

At this time, Xu Yun did not notice the abnormality in Lao Su's expression, but picked up a pen and drew a simple picture on the paper:

"This object is divided into a main body and a front needle. The main body is about half an inch wide and half a foot long.

The front needle is only a few millimeters, hollow inside, and there is an object on the main body that can be pulled out.

When it is filled with liquid, you only need to insert it into a vein and push it slowly to inject garlic juice into the human body. ”

"Main body? Front needle?"

Listening to the picture drawn by Xu Yun, Lao Su was stunned again, and then he realized that he seemed to have thought wrongly.

He coughed slightly in embarrassment and looked at the picture drawn by Xu Yun.

The halo gave Xu Yun the ability to understand ancient texts after time travel, but it did not allow him to touch writing and painting. Therefore, the diagram drawn with a brush is quite like a soul painter.

However, it is as simple as it is simple, and some of the more critical details are barely described in place.

In fact, in ancient China, it was not that our ancestors had never tried making syringes.

But the appearance of the syringe at that time was very different from that of later generations:

The ‘body’ of the syringe is actually made from sheep’s bladder, with animal intestines used to create the tube.

It's more like a squeezer for taking blood pressure than a syringe.

As for this ancient syringe, it is made of bird bones and has a hollow interior, which is quite convenient for infusion.

Although this thing is a little thinner than the ancient artificial needle, it is still very painful when it is hit.

In local history, the concept of a truly modern syringe would not be proposed until the 15th century by Cardinal Cardinale.

And it was not until 1853 that the Gaulish Pravaz invented the piston hypodermic syringe, which was made of pure silver.

Therefore, the syringe drawn by Xu Yun can be said to be a new artifact, which was a bit ahead of the times for ancient people.

Most people might not even understand what this is.

But don't forget.

The principle of a syringe is actually very similar to an air pump, and Lao Su is an expert at tinkering with automatic suction pumps.

So within a few seconds, he clapped his hands and figured out the principle of operation:

"Wonderful, wonderful, the air is sucked in through pulling, and then the force of the mountain is used to shoot it into the human body.

With such an exquisite creation, even if Hua Tuo and Bian Que were alive, he would probably be overjoyed, right? ”

Students who have taken the history of ancient Chinese physics as a PhD student should all know this.

Over the mountains.

This word is actually the prototype of the ancient understanding of air pressure.

However, humans did not have a deep understanding of air pressure at that time, and the concept of mountain crossing refers to valley wind.

Although in a strict sense, this thing is related to thermodynamic circulation, not atmospheric pressure in a broad sense.

But considering the limitations of the background, it is actually quite remarkable to be able to realize this at the level of ancient scientific theory.

You must know that Europe at this time was still in the Middle Ages, and the perception of wind there was still the touch brought by the souls of the dead.

Then Lao Su thought for a while and said to Xu Yundu:

"Wang Lin, I vaguely understand the principle of this thing. The barrel is not difficult to make, but how to prepare the needle?

According to what you said, the needle is only a little thicker than a hair. It would not be difficult if it were a solid needle. I have this kind of silver needle in my hand.

But if it is hollow inside.”

Looking at Lao Su who looked curious about the baby, Xu Yun smiled at him:

"Master, do you know how to stab the pot?"

"Stab the pot?"

Lao Su looked stunned and blinked quickly:

"It's that kind of sea creature covered in thorns? I've seen it a few times

Wait, I understand, are you planning to use its thorns to make needles? ”

Xu Yun nodded heavily:

"Yes, that's it."

The thorn pot is also known as sea urchin in later generations.

Sea urchins can be said to be found all over the world's oceans, and can be seen in Asia and Africa.

In recent years, traces of sea urchin can be seen in both Chinese cuisine and the cuisine of other countries.

In the mouths of some gourmets, sea urchin is also regarded as the most delicious seafood.

However, in ancient China, sea urchin was only used as a medicinal ingredient and did not appear as a common ingredient.

Only extremely poor fishermen will eat sea urchins when they are short of food.

Many people actually don't know.

Sea urchins existed on the earth long before the appearance of dinosaurs, and their history can be said to be quite long.

Of course.

There are some differences compared to cockroaches.

For now, there are generally five types of sea urchins:

Fecal sea urchin, purple sea urchin, northern purple sea urchin, red sea urchin, long-spined sea urchin.

Among them, dung sea urchin and purple sea urchin are popular commodities, long-spined sea urchin grows the fastest, and red sea urchin is the rarest in the market.

Another thing that many people don’t know is.

The spines of sea urchins are actually natural needles.

Or to be more precise.

It should be said that the spine of red sea urchin is a kind of natural needle.

The spines of sea urchins are columnar protrusions formed by calcification of connective tissue. They are connected to the venom glands in the body and can easily pierce human skin.

When the spines pierce the skin and inject venom, they can cause dermatitis and other associated diseases.

Almost every year, a large number of questions about "what to do if you are stung by a sea urchin" appear online, especially in some coastal cities.

Most medical needles in later generations are No. 5.5 to No. 7, with a diameter of 0.30mm-0.51mm.

The tip of the red sea urchin spine is about 0.38mm-0.42mm, which is a standard model for intravenous injection.

Therefore, in ancient times when there was no technology to produce sharp hollow needles, sea urchin spines were undoubtedly the best choice.

Although red sea urchins are mainly distributed in Neon, maritime trade was quite prosperous in the Song Dynasty, and even became one of the pillar industries in the Southern Song Dynasty.

These days, there are many maritime caravans traveling between Goryeo and Tamna, and there are fewer fishing boats. However, after repeated visits, some rare sea goods will always be brought back to the Song Dynasty.

As the core city of the Song Dynasty, Bianjing sucked blood and supplied more blood than Yanjing did to Hebei in later generations.

Therefore, it is not difficult to find some red sea urchins as long as you put some effort into searching.

Of course.

Although the spines of sea urchins can easily break through the skin of the human body, they are also extremely fragile and may snap into several sections with a little force.

Therefore, before the official injection, there are two things that need to be dealt with:

Find the red sea urchin, coat the 'needle' with aluminum to reinforce it, and prepare physiological saline.

That's right.

saline.

After all, unlike oral administration and external application, intravenous injection does not mean that you can just pour the liquid into the tube and stab it directly into the blood vessel.

Before intravenous injection, the medicinal solution must first be integrated into the rehydration solution or solution preparation before the next step of injection can be carried out.

As for the principle, it is very simple, and it is related to osmotic pressure:

Because human blood is not pure water and contains various substances, it has a certain osmotic pressure.

If the osmotic pressure changes, it will lead to an imbalance between the inside and outside of the cells in the blood and cell rupture.

The osmotic pressure of the 0.9% sodium chloride used for infusion is similar to that of blood. Infusion with this liquid will not cause major changes in the blood osmotic pressure.

Similar to 5% glucose solution, the biology teacher must have taught it countless times in class.

In some special cases, coconut water can also have this effect.

In addition, in the movie "Whoami", when a driver is bitten by a poisonous snake, Uncle Long uses coconut instead of glucose to give him an infusion.

However, when Xu Yun was writing a book in his previous life, he once asked a friend of his, a writer whose pen name was Baiyi Bachelor.

In reality, this person is also a doctor who is about to reach the director level.

He has superb medical skills and a very high hairline.

Therefore, in the writers group where Xu Yun belongs, everyone will go to him for consultation and get a free director number if they have any problem.

He told Xu Yun at that time.

Although there are examples of coconut water injections, this practice is very risky and is not recommended for readers to use after time travel.

Therefore, after careful consideration, Xu Yun finally decided to make simple saline solution.

Although with the current level of science and technology, it is difficult to produce physiological saline with an accuracy of 0.9%.

But in an emergency, saline is the best solution.

Of course.

Xu Yun plans to make the salt needed for this part - or sodium chloride himself.

As for the method, which is not complicated, Xu Yun can think of many.

For example, just have hands.

Hand rub a disc generator.

Note:

Someone actually guessed the needle. Readers are indeed crouching tigers, hidden dragons. I underestimate you all. But luckily I didn’t add more rewards, I’m so smart, hahahahahaha!

(End of chapter)