Chapter 402: Insert the Vine into the Heart!

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Apr 4, 2024

One, two, three. Extremely subtle, almost imperceptible tremors. If it weren't for the ammeter placed on the floating disc, it wouldn't have been shaken by the carriage at all, and Garrett could almost be sure, the needle was jostled into moving erratically.

However, this kind of shaking was a rare occurrence. Soon, the ammeter needle—

Stopped moving.

“Uh, why did it stop moving?”

“It's not dead, right? It still had breath, didn't it?”

Two pairs of inquisitive eyes looked towards Garrett. Garrett shook his head helplessly:

“I don't know…”

There were many reasons for it to stop moving. Either the needle wasn't sensitive enough, or the friction between the coil and the base had increased, or there was too much interference, and the needle didn't know which way to swing...

More precise instruments were needed. But he didn't know how to make them.

In modern society, with increasingly specialized divisions of labor, those who make instruments only make instruments, those who treat patients only treat patients. Any doctor from a cardiology department, if asked to manually craft an instrument, would think it a dream!

Although the principle behind it was actually simple. Garrett had heard from a teacher in his past life gossiping, that the most primitive electrocardiogram was basically a string galvanometer—a quartz fiber plated with silver, sandwiched between two strong magnets. But the precision required was astronomical.

The diameter of the quartz fiber had to be 0.0025mm, and then plated with a layer of silver, can you believe it?!

Precision, oh precision... Without precision, everything is false...

Garrett stared at the painstakingly crafted ammeter, his gaze vacant, almost sighing in despair. Right, even if he managed to craft a string galvanometer, it would be useless; the earliest ones made weighed 300 kilograms and took up two rooms.

Rather than waste time on such broken gadgets, it would be better to take his thesis to Thunder Horn and see if any of the greats could help improve it.

Serrano sat opposite him, shaking her hand once, then again. Seeing him unresponsive, she reached out and touched the ammeter's wires...

“Eh?”

Her eyes lit up. Sneaking a glance at Garrett, seeing him still in a daze, she quickly untied the wires, twisted them together, and wrapped them around her fingertip.

“Hey, there really is electricity!”

“Yes, there really is electricity.” Garrett snapped back to reality, lifted his eyelids, and answered listlessly.

Ah, the silver dragon, this talent is truly remarkable, holding the wires in her hand, able to feel the current with her body...

But how to transform the current she felt into an electrocardiogram waveform that anyone could see and record with their eyes?

Garrett shook his head.

Serrano shook her head.

The necromancer on the side: ...Although I don't understand what you're talking about, since I can't even understand it, I might as well shake my head along...

The coachman outside, Bernard: Do all three of you need me to shake my head too?

“If we can't figure it out, then we can't figure it out.” The silver dragon girl suddenly clapped her hands, her eyes sparkling:

“Don't worry, once we get to my aunt's place, she will definitely have a way! Her magic is the most powerful!”

“This—” Garrett hesitated. Serrano had dragged him on this journey precisely because he couldn't explain the principle of the electrocardiogram, and Serrano wanted to ask her aunt for help. But Garrett's thought was to figure out the device before then—

No knowledge comes without a price. Asking a silver dragon, especially an adult silver dragon, to help me study electrocardiography, wouldn't the reward be more than I could ever repay?!

“Ah, don't worry about it!” The silver dragon girl waved her hand confidently, taking on a big responsibility:

“My aunt is pregnant, she's being kept from going out and is bored to death! If we go to her now, no matter what it is, she will definitely welcome it!”

...How long does a silver dragon's pregnancy last?? If it's more than a year, and they are strong and healthy, without nausea, vomiting, preeclampsia, or gestational diabetes, being confined would indeed be boring...

Where there's a will, there's a way. At worst, he could go back, clutching his thesis, and apply for project funding from the Magic Council. Garrett, temporarily hitting a bottleneck in his research on electrocardiography, propped his chin and pondered for a moment, then cast aside the thought, beckoning to the necromancer:

“Do me a favor, move the rabbit over a

bit.”

Leon placed his hand behind the cart, wriggling, wriggling, moving the rabbit over along with it. Serrano moved forward a bit, glanced at the rabbit she had just saved, then back at Garrett:

“...What are you going to do? You're not going to dissect it again, are you?”

“This time, no dissection.” Garrett's face was smiling, but his eyes were extremely solemn. He held the rabbit's right hind leg with his left hand, and with his right hand, he deftly prepared the skin. His right index and middle fingers joined together, feeling for the femoral artery's robust pulsation in the rabbit's groin.

Here it is!

Lifting his hand, a 【Magic Trick】 precisely colored the location on the femoral artery. Cleanse, iodine, alcohol, three times cleaned, 【Alleviate Pain】 descended.

“Serrano, don't move!”

He instructed while wiping his spatial bag, a sealed syringe along with a glass box fell into his palm. Before anyone could react, Garrett unwrapped the packaging, took the syringe, aimed the needle at the marked spot, and inserted it at a 45-degree angle downwards.

The silver dragon girl took a small breath. She quickly glanced at Garrett, then hurriedly covered her lips:

Now is not the time to disturb! If she made a loud noise and Garrett's hand trembled, that rabbit would bleed again!

Fortunately, the needle only advanced a little before stopping. Garrett slightly withdrew the syringe, seeing blood drawn from the needle's tail, he trembled, magic surged, and immediately dismantled the syringe's barrel. Serrano breathed a sigh of relief, lifted her fingertip, a gentle white light flickering, she looked inquiringly at Garrett:

Is it done?

Do you need healing help?

Garrett kept his head down, not looking at her. He put down the syringe barrel, and with another pat on his spatial bag, a seed fell into his hand. Soon, a green vine swayed in the wind, with a silver thread thinner than a hair strand silently drilling into the needle tube.

Garrett pursed his lips tightly, his gaze focused. His left hand produced an 【Endless Ink Pen】, placed under the rabbit, and his right hand drove the vine forward incessantly. It's in, it's in, the shadow on the 【Arcane Eye】 clearly showed, the vine had already passed through the needle tube, entering the femoral artery!

Now, without needing to insert a catheter, there was no need to withdraw the puncture needle—perfectly, no need to bother finding a catheter sheath. Next, the vine, carrying the silver thread, pushed upward with all its might!

Against the direction of blood flow, entering the external iliac artery, into the common iliac artery, into the abdominal aorta, into the thoracic aorta—around the aortic arch, straight into the heart!

“It's inserted into the heart!” Serrano tightly covered her mouth, her fingertips turning white above her lips. She breathed rapidly, her eyes wide, as if the vine wasn't inserted into the rabbit's body, but her own heart:

“Garrett, what are you doing? Are you going to kill it?”

“Shh! It won't die!”

Just a mere catheter inserted into the heart! The pioneers who created interventional surgery, inserted a catheter through the median cubital vein into the heart from the left elbow and even took an X-ray, and they were perfectly fine!

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Source: Webnovel.com, updated by Aunomay