"Blood sphygmomanometer...Blood sphygmomanometer...Blood sphygmomanometer..."

Grett looked sad.

In most magic, to be precise, he is limited to "using" most magic that cannot be used in medical treatment. As for what the principle is, how to modify and how to change it, I don't know anything.

For example, if he uses the mage's hand to change into hemostatic forceps, toothed tweezers, no-toothed tweezers, hooks and even tweezers, he can do it effortlessly, with accurate changes and perfect strength control;

However, other magics of the power field branch of the shaping power field, such as how the floating disc increases the load bearing with the mage level, how to control the strength of the force field palm, to achieve a series of functions such as tripping, grasping, pushing, whipping, and even interfering with spell casting...

Sorry, no.

So now, if you want to make a magical version of your blood pressure monitor, Gret's first idea is to use a force field instead of cuffs and airbags to pressurize. But how to use this stethoscope to get sound?

How to make the magician responsible for monitoring pinch the sound that the heartbeat suddenly weakens or disappears? This is the time point for determining diastolic pressure? Or go further, so that the magic itself can determine this time period and display the corresponding blood pressure value?

"ah"

Gret hugged his head.

He really doesn't understand!

He specializes in his profession. He is an emergency department doctor. He is not a big shot in the medical device field... Whether it is a blood pressure monitor or a vital sign monitor, he can only use it, but he can't make it!

"Mr. Norwood Oro"

Two heads emerged from the laboratory respectively. A change-based magician and an energy-based magician surrounded Gret and listened to him being tricked:

"I want to create something like this..."

"Replace the cuff with magic? Replace the airbag?"

Mr. Norwood immediately began to think about it. The magician of the change department had a daily job to help everyone solve problems and turn the goals that other magicians had come up with in the head into reality.

Other magicians have been used to the various possible, impossible, and incredible needs raised by customers. They have long been used to it. After a little thought, he spread the manuscript paper and started to calculate:

How to build a cuff?

How to build an airbag?

Or simply use wind magic without using force field constraints?

What is the amplitude of pressure reduction, the sound of heartbeat, and the sound of blood flowing in the blood vessels, and which magical configuration should be spliced ​​on...

In contrast to his actions, Aurora did not start thinking about the magic configuration at the first time. The young sculpting magician was still confused:

"Why do we need to build airbags? Why do we need to use cuffs? Since it is to measure blood pressure, isn't it better to directly measure blood vessel pressure?"

"this……"

Grett was confused. To be honest, he is not a professional medical device, nor is he in the history of medical devices. He has no idea about "why do you want to make a blood sphygmomanometer look like this". Now when asked, he can only start from the principle:

"Maybe... it's inconvenient to measure blood vessel pressure directly? After all, it may be through the skin, muscles, and several layers of clothes, and it may not be accurate..."

“So what exactly is the principle of the cuff?”

Grett started with physiology, thought about it from the beginning, and slowly sorted out his ideas:

"The cuff-type measurement method is when the air pressure in the cuff is higher than the systolic pressure, the blood cannot pass through the blood vessels and there is no fluctuation, so no sound can be heard;"

"The air pressure in the cuff continues to decrease until it is lower than the systolic pressure, and the blood is forced to penetrate the blood vessels by the pressure of the heart contraction. When the blood vessels are under this pressure, mechanical vibration occurs. We can hear the sound of this mechanical vibration through the stethoscope;"

"The air pressure of the cuff continues to decrease, the resistance continues to decrease, the mechanical oscillation weakens, and the mechanical vibration sound heard through the stethoscope gradually decreases;"

"Until the cuff pressure is lower than the diastolic pressure and the resistance to the blood vessels drops to 0, then the blood vessels will have no mechanical oscillation and the stethoscope cannot hear any sound."

He stopped to explain and looked around the two people:

"So mercury barometer is different from an invasive blood pressure meter. It actually measures the air pressure of the cuff, rather than directly measuring the blood vessel pressure."

"ah?"

"ah?"

Norwood and Aurora spoke at the same time. Grett did not pause and continued to speak slowly:

"It's just that when a certain moment, the cuff pressure equals the blood vessel pressure, a specific thing will happen. The measuring instrument takes the value of this moment as a reading of systolic/diastolic blood pressure, that's all."

"So, is the key to deflate the speed?" Aurora said slowly, thinking:

"Because your heart rate is about sixty or seventy or eighty in a minute, so the air release speed is too fast, and the air pressure will suddenly reach the end, and nothing will be measured..."

"Since this is the principle, we can directly measure the pressure!" Master Norwood suddenly jumped up:

"We have similar things! Just the steam engine and the pressure cooker we built before, they made a pressure gauge for us! We can disassemble that magic and change it to the relevant blood pressure magic!"

"Record its pressure waveform!" Gret's eyes lit up:

"The maximum pressure, the minimum pressure value! Change the display mode to millimeters of Hg, which is what we want!"

"Isn't it just a matter of accuracy and time? This is not difficult! I'll change it!" Master Norwood was ready to go and ran away almost when he wanted to. After thinking about it, he turned his head and asked:

"Boss, what else do you need?"

"Connect a light screen? Just like an electrocardiogram? Then connect an output, such as a paper tape. I remember that there was a related research when doing electrocardiogram magic;" Gret pointed his finger:

"It's better to do both! I need both! It's better if it lasts for one day!"

"No problem, boss!" Master Norwood had already had a idea and agreed immediately. Gret turned to Aurora:

"Oro, you can also help. You two each make a version, Mr. Norwood, you make a physical version, whether it is engraved on the magic crystal or on whatever it is engraved, it can be used after activation;"

"Oro, what you do is to make a magic version, just position it directly on the patient's arm, it's best to last for a period of time, and it's better to have one hour per level."

"Please!"

"No problem, boss!"

The two magicians answered at the same time. Then, they turned around, ran, looked up information, purchased the corresponding spell configuration, and began to modify the experiment...

Within a week, the magic blood pressure monitor that Gret wanted was brought to him.

"Boss, give it a try?"

Gret took the belt from the hand of the mage Norwood and wrapped it around his upper arm. The chip pressed against the center of the inner side of the upper arm, wrapped it tightly, and activated the magic crystal stone at the top.

A light curtain spread out before everyone's eyes.

"155, 98 Master Norwood, your blood pressure is a little high! Are you too tired during this period?"

****

Thanks to @官网20201027193620425131037官网网站 for his technical guidance in this chapter

Please subscribe, monthly tickets, recommendation tickets, book reviews, and various...
Chapter completed!