While all of Vienna was looking forward to this open-air surgery, Kavi and his small experimental team became very interested in a machine that had just come out of the Laszlo Foundry. To be precise, it should be someone other than Kawei. Kawei's interest is just fake.
After all, this thing has been with him since he first started studying medicine, which has been more than 40 years.
"This thing is really interesting."[1]
Savarin pinched the rubber ball and felt the pressure generated by the cuff on his left upper arm. He swept away the haze of the previous days' experiments and shouted excitedly: "Look, look, it's up to 160 now!"
"
"Can you hear the sound?" Koch sat next to him, also looking curious.
"Well, I can still hear some." Savarin put on the stethoscope and pinched the ball a few more times. "It's coming, it's coming, it's going to be 180, and the sound will disappear immediately!"
"Really disappeared???"
"It disappeared. All the sounds of blood vessel pulsations disappeared!" Savarin was very excited. "This cuff is like a big hand, pinching and closing all the blood vessels in my entire arm."
"Try it for me too!"
"Don't worry, I have to loosen it slowly according to the instructions for use." Savarin found the deflation valve on the ball, and looked at the scale line of the mercury column, and continued, "Loosen it at the same time. You also have to look at the scale lines and listen to the sound in the stethoscope."
"How much do you want to put in?"
"I don't know." Savarin looked at the description on the manual again, "I just said that when your blood pressure reaches the value, you can hear sounds in your ears and the mercury column will vibrate up and down."
"It's amazing. This is much simpler than the metal blood pressure stent used before." [2]
"Shhh"
Savarin's attention was now focused on his eyes and ears, for fear of missing this historic moment.
The level at the top of the mercury column slowly dropped with the loss of gas in the cuff, and the pressure on the outer ring of Savarin's left upper limb also slowly weakened. No one knew when the brachial artery would start to pulse again, or whether the sounds in the stethoscope would match.
All the unknowns disappeared with a crisp sound of arterial blood vessel impact.
"I'm coming!
Savarin was particularly excited, "The mercury column is also moving. Sure enough, it is moving. This is the pressure change in the blood vessels, winter, winter, winter."
This pulsating feeling continued until it reached a lower level, and then disappeared from his ears. In addition to Kavi, Savarin became the first person to try this blood pressure monitor and successfully recorded his own blood pressure.
"Not bad, not bad, very interesting." After untying the cuff, he was still a little unfinished, "When the pressure is raised to 180, it feels like being in the dark night. It is not until the moment when the blood vessels stretch out the restraints that people feel excited. Breaking away from the feeling of silence and darkness.”
"Try it for me too."
Savarin took off the stethoscope and pushed the entire machine in front of Koch: "Although the structure and principle are very simple, the operation still requires a little skill. Pay special attention to the deflation speed, not too fast or too slow. .”
"OK, I understand!"
Koch also learned it immediately, copying the gourd, and soon got a very special experience: "It's not bad, it feels like the moment the sound appears, I can feel the impact in my blood vessels."
"It seems that you will feel it the first time." Savarin nodded, "How about I try again."
"Huh? Shouldn't it be my turn now?" Mattik stood aside and couldn't hold it in any longer. "We agreed to do it one person at a time."
"Okay, okay, I'll have to try again after you've played with it."
The blood pressure monitor passed through the hands of the three people several times, and it came to an end after Kawei came back from the dean's office: "The laboratory expansion we applied for has been approved, and the dean promised that half of the third floor will be under my control. .”
"Amazing!"
"Great, this way we can separate the new animal rooms, so we don't have to crowd them together!"
"There will not only be voles, but also dogs, rabbits, and sheep."
The assignment of the laboratory was as expected by Kawei.
In just over a month, Kawei has developed several new drugs. Although they have not yet received unanimous recognition from the outside world, and Kawei's paper has not been published, the effects of the drugs are obvious.
At least it worked very well on the patient and didn't find many flaws.
Two of them have already applied for national patents, half of which are patented by Methylene Blue Kavit. The effect of the adrenal gland extract is even more amazing. It is only a matter of time before it is patented. Such a productive experimental team deserves to be assigned to a more advanced laboratory.
The three of them gathered around the experimental table and were still discussing the next experimental project. Only then did Kawei notice that they had been playing with the blood pressure monitor for a full hour and a half: "Why are you still playing?"
"This thing is so fun."
"It's much simpler than the ones used in hospitals." Koch put on the stethoscope and came again. "When it is put into production, we may not be able to afford it, so naturally we have to play more now."
"Why can't I afford it? My price is only 50 kronor." Kavi said as he put down the laboratory transfer procedures.
"Only 50?"
"This is the world's first blood pressure monitor that anyone can operate and learn. It's much simpler than the old antique we used before!"
Mattick, who comes from a bourgeois family, really doesn't understand why Kawei did this: "According to the laws of the market, this kind of epoch-making work must be sold for 300, no! 500 crowns a piece. Only in this way can it reflect its due value." , and also allows people to notice the hard work put in by the researchers.”
"But its cost price is only 20 kronor, and I have already sold it very expensively." Kawei said.
"You really lack business sense!
"
Kawei is definitely not as bad as he said, but he thinks that the principle of the blood pressure monitor is not difficult to understand. Sooner or later, imitations will appear after the finished product enters the market, so there is no need to set the price too high. In fact, given its mission of existence, Kawei cannot set the price too high.
"It's okay, it's just some money, no matter how much it is."
Kawei smiled and had nothing to defend: "By the way, what do you think of this machine? Is there anything that can be improved? If you have any comments, feel free to ask. I can discuss it with the design team at Laszlo Foundry. Improvement.”
"The measurement method seems simple, but it requires the cooperation of eyes, ears and hands." Savarin has not shown such a happy smile for a long time, "It is indeed a good machine. If it finds its use, the sales should be very good. "
Ratings are mediocre.
Compared with the most commonly used folding blood pressure monitors in modern times, Kawei’s model cannot be folded and occupies a larger volume. In fact, the ease of operation means that compared with the past, this blood pressure monitor, which has been in the forefront of clinical practice for more than a hundred years, is still a bit complicated compared to those modern fool-proof electronic products.
In fact, it is a question of design principles, and it has solved all the problems it can solve. And its problems have become meaningless because of its cheap cost and accurate numerical values. Therefore, after its birth, all people can do is fine-tune the structure, and there is no need to change the core.
Even electronic blood pressure monitors, which have become popular, cannot match the practical feeling of measuring blood pressure by hand. The values on the LCD screen are no more intuitive than the sound of blood vessels being opened.
After all, it adds sound to the scale value, showing the pressure in the blood vessels in front of the examiner in a better way.
"The most useful thing is that at least when surgery is dealing with heavy bleeding from a wound, the relationship between blood pressure and blood volume can determine the blood loss of the casualty."
Kawei did not rush to say too much, but changed the subject: "The use can be discussed later. What I am more concerned about now is your blood pressure. Savarin, what is your blood pressure?"
Savarin handed over his recording paper, and he wrote down the value and time of each test. The habits accumulated through a large number of experiments are very good, but the values on paper are not so good, and the quality of these values is quickly reflected on Kawei's face.
The systolic blood pressure is 154 and the diastolic blood pressure is 92, which is typical high blood pressure. If coupled with Savarin's age, the prognosis is not optimistic. Of course, high blood pressure is a chronic disease. If we only count life span, it should be much longer than the average life span. In this era, there seems to be no need to be too pessimistic.
But after all, he is half of his "employee". As a "boss", Kawei still needs to take good care of him.
"What's wrong with you?" Savarin thought that the format or content of his recording was not in compliance, so he stepped forward and asked, "Did I record it correctly?"
"it's okay no problem."
Kawei didn't know what to tell him, so he could only turn his head and look at the blood pressure of Mattick and Koch. Both of them had normal blood pressure, and he finally breathed a sigh of relief. Kawei put down the recording paper, looked at Savarin, and suddenly asked: "By the way, how long have you been working here?"
"Including the time in the hospital, it's already been two months."
Along the way, except for some awkwardness over the safety of animals, Savarin was very reassuring in other situations and worked very hard: "Why are you asking this suddenly? You don't want to fire me, right?"
"That's not true." Kawei smiled and chatted with him, "You spend time in the laboratory every day and often work late. Now the laboratory has improved, it has been moved to a new location, and the experimental project has been basically completed. I think you should be given a holiday."
It was indeed time for Savarin to rest. This high blood pressure was most likely caused by staying up late for a long time.
But he himself didn’t want to take a break, because once he took a break, he would lose his job, and without his job, he would have no income. Savarin does not have Koch's connections and scholarships, nor does he have a wealthy family compared to Mattick. The laboratory is his only way to make money, so it cannot be cut off.
"No, why am I taking a vacation at such a young age?" he joked. "I'm thinking of buying an apartment on the Ring Road. Then I can go to the theater to listen to operas and so on when I have free time."
"I'll give you paid leave."
Kawei immediately took out a pen and paper and wrote a leave request for him on it: "I will give you a month's leave. You can have a good rest and the salary will be as usual."
Savarin looked at Kavi in disbelief, not believing his ears. But when I listened to the sound of my own blood pressure just now, my ears were obviously good: "Is there such a good thing? Do you want it when I come back?"
"When you come back, you will definitely have a lot of projects to do, so I will give you a raise."
Taking advantage of the laboratory upgrade, which also happened to be the day when the finished product of the sphygmomanometer was released, Kawei wrote an eight-hour work system into the laboratory work schedule, which is not necessarily seen often in modern times. After all, if the laboratory wants to continue to operate, qualified talents are the most important thing.
"Okay, put on the blood pressure monitor and I'll show you something more interesting." Kawei turned around and opened the door.
The adrenal gland extract developed by the laboratory team and occasional blood transfusions can basically maintain Fernan's body, but this can only cope with the blood loss and will definitely have no effect on the tumors in the body.
But in the eyes of outsiders, it seems that only blood transfusion is the focus, and there is no way to prove the effect of adrenal gland extract.
So in order to let everyone understand the effect of adrenaline, Kawei moved this latest blood pressure monitor into the cell of the police station, and also to prepare for tomorrow's open-air surgery.
Even if it was an operation with a very high mortality rate, Kawei couldn't let Fernand die at the beginning. He had to wait until the operation was over. Adrenaline was the miracle drug that could hang him alive, and the blood pressure monitor was the key instrument to measure the dosage of the drug and Fernand's vital signs.
Kawei is the chief surgeon, so he and his team can enter and exit the police cell at any time during these days.
"How is he today?"
Werther shrugged his shoulders: "It's still the same. I vomited twice after the blood transfusion last night. I think the blood loss was in vain."
"It's good to be alive," Kawei said. "If he vomits blood again, let Mr. Musil give him another bag. Anyway, he only needs to survive until tomorrow afternoon."
Werther had nothing to say, so he nodded and left first. Kawei successfully took over the cell and asked the three of them to get into position: "He hasn't used adrenal gland extract today yet. You can measure his blood pressure first as a baseline value."
Savarin stepped forward, tied the cuff step by step according to the operating instructions in the instructions, inserted the auscultation head, and then continued to apply pressure. In fact, judging from the amount of blood loss these days, it is enough to increase the pressure to 140, but Savarin still increased it to 180 in a very standard way, and then began to slowly deflate.
".Why is there no sound yet?"
Savarin was a little surprised. Compared with his own blood pressure, Fernand had dropped by less than half. Kawei was very calm and had extensive experience with the blood pressure of patients like Fernand: "Don't worry, keep deflating."
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Finally, the mercury column level jumped on the scale line of 96, and Savarin soon heard a heavy pulsing sound in his ears: "Here it comes, the upper pressure is at 96!"
"It's really low."
"How much below?"
"It's already over 70, and there is still a sound." Savarin shook his head, and kept thinking silently as the liquid dropped, "68666360"
"Yes, it's 58!"
"Okay, let's give him some adrenal gland extract and see how his blood pressure changes."
