Chapter 483: Eat meat with ultrasonic blade?

After an in-depth conversation, the three of them quickly settled on the matter of cooperation.

The patents of the three new materials will be licensed to important national institutions such as the Navy, Aerospace, and Iron and Steel Research Institute for use, and reasonable patent fees will be collected every year.

In addition to military sonar systems, this new material can also be used for rocket fuel regulation and control, space station and satellite control, etc., and can effectively improve the level of technical equipment in the fields of national defense and aerospace.

Because the technology is too advanced, in order to keep it confidential, except for Sanqing's own products, it cannot be used in the civilian field, and exports are prohibited.

This is because Sanqing’s ultrasonic scalpels are all medical equipment, and its main customers are major public hospitals in China.

So there is no need to count on overseas customers.

Of course, in return, as long as Sanqing's ultrasonic scalpel meets national standards, it will be no worse than Johnson & Johnson's.

Major hospitals will open their doors to them and purchase them as the best choice.

This is equivalent to the state personally bringing the goods, and the support is not insignificant.

In this way, when Sanqing's ultrasonic scalpel is officially launched, the complete localization of ultrasonic scalpel equipment will not be a problem.

Wei Kang was quite satisfied with this. When he came up with various black technologies, he was already prepared.

China's medical industry is quite special, completely different from industries such as electronic products.

All medical resources are publicly owned. To develop and grow in the pharmaceutical and device fields, they must be deeply tied to the state.

As long as he can achieve his goal and does not suffer much loss in terms of interests, these confidentiality measures are acceptable.

After a few years, the independent application of new materials will form an international advantage, and the ban will inevitably be lifted and entered into the civilian field.

By then, his ultrasonic scalpels will have captured the entire domestic market, and he will be able to fully attack overseas markets.

****

At the same time, Wang Dali also rushed back to the company with several samples of new materials.

The entire R&D team immediately threw themselves into the work and quickly assembled the key parts of the ultrasonic scalpel, the transducer and the blade for load characteristic testing.

"Boss, this magnetostrictive transducer is really awesome, much better than the piezoelectric ceramic electrostrictive transducer." The test engineer said ecstatically.

"Not only is the power dozens of times stronger, but the accuracy is also greatly improved, and the amplitude range is wide. You only need to adjust the power, and a knife can be switched between a bone knife and a cutting and hemostatic knife at will."

He held a simple handle in his hand. The front of the handle was connected to a titanium alloy cutter head through a horn, and an ultrasonic transducer was inserted into the back and connected to a high-power motor.

Wang Dali nodded silently, took the ultrasonic scalpel, and tried to operate it, but soon frowned.

"Why does this handle feel a little hot?"

The engineer explained: "It has been used for a long time and it is normal for it to heat up."

Wang Dali stared at the power and frequency data recorded on the screen for a while and shook his head.

"No, the operating frequency of the blade must be consistent with the frequency of the power supply voltage, so that resonance can occur and the best surgical effect can be achieved."

"Otherwise, most of the energy will be consumed internally, causing the handle to heat up and even reduce the output amplitude of the blade, causing the quality of surgery to decline."

"But when cutting different tissues, the resonance frequency of the ultrasonic knife is different. The resonance frequency of soft tissue is very low, and the resonance frequency of bone tissue is the highest." The engineer said.

"Then we need to continue to improve it to automatically track the frequency and control it automatically so that it automatically maintains resonance when working, so as not to waste energy and reduce heat generation."

Wang Dali said decisively, placing the handle on the test stand.

"Okay, let's make some adjustments." The engineer nodded.

After another two weeks of careful debugging, this problem was completely solved.

Wang Dali finally breathed a sigh of relief, so when he tested again, he went to the vegetable market and bought a lot of experimental materials.

However, everyone was shocked when they looked at the neatly arranged experimental materials on the table.

"Boss, isn't it a bit wasteful for you to do this experiment?"

Engineer Xiao Du looked at the leg of lamb placed in the middle and couldn't help but swallow his saliva.

Just looking at the bright red muscle texture, it's as if the nose can smell an alluring aroma of meat.

He looked back at Wang Dali and said with some reluctance.

Others also tried to persuade me, but they didn't want to be so wasteful and wasteful of food.

"Such good meat would be great in a hot pot."

"Yeah, we can't use the ultrasonic blade to cut meat, can we?"

"If you want to experiment, can't you just buy a few sheep bones?"

"It's really not necessary. It's really not possible. Just buy a chicken and share one point."

When they saw such a big leg of lamb, they immediately thought of roasted lamb leg and lamb hot pot, and their mouths watered instantly.

"Who said there is no more chicken?" Wang Dali took out a disembowelled chicken and placed it next to the leg of lamb.

"By the way, there are also offal." He slapped his forehead and took out a bag of chicken hearts and livers.

Xiao Du looked at the scene in front of him, silently took out a stack of plastic plates from the cabinet and placed them on the table.

"Boss, last time we had cake in our group, there were some plates left over, which we can use just in time."

Wang Dali suddenly laughed: "Hey, Xiao Du, are you really ready to eat barbecue?"

"What else?" Xiao Du asked, blinking his eyes, looking innocent.

"You still understand me, so I'm welcome to be the first to get started."

Wang Dali gave him an appreciative look, rolled up his sleeves, and said:

"But the data that should be recorded still needs to be recorded. Don't say I didn't remind you."

With everyone watching, he picked up the handle, installed the blade, and turned on the power.

First adjust to the 30kHz low frequency state for cutting soft tissue.

At this frequency, the minimum amplitude of the cutter head exceeds 40 μm, which can completely transmit the mechanical effect generated by the vibration of the cutter head to the muscle tissue.

The tip of the cutter head has an angle similar to that of scissors, which can be easily used for cutting and clamping through the handle.

Wang Dali carefully controlled the knife head and cut into the lamb leg along the muscle texture.

It feels as smooth as cutting butter, effortlessly cutting a deep opening immediately.

After carefully looking at the incision, not only was the incision precise, but the surrounding blood vessels and tissues were not damaged, and the flesh remained bright red.

He smiled: "It's really sharp, really like a scalpel. I'll try lowering the frequency again."

He quickly turned the handle, adjusted the frequency to 15kHz, and stabbed into the leg of lamb again.

However, this time, he felt a resistance.

Upon closer inspection, the mutton that the blade of the knife touched was not cut, but was dented like a rubber band.

Xiao Du interjected: "The soft tissue cutting threshold has not been reached, and it cannot be cut. Let's increase the frequency."

Wang Dali laughed and said: "It seems that this is the safety threshold. If it continues to lower, it is estimated that there will be no bleeding even if the hand is cut."

As he spoke, he adjusted the frequency to below 10, then stretched out his finger and tried to slide the knife head on it.

Sure enough, not even a trace of white marks appeared.

"That's what I said." He quickly changed the frequency back.

Next, Wang Dali kept cutting off the fattest pieces of meat from the lamb leg without stopping.

Thanks to the instantaneous impact force generated by the mechanical vibration of the ultrasonic scalpel, the meat was quickly pulled apart in an instant and separated from the surrounding tissue without being damaged.

All in all, it's incredibly smooth.

For the first time, Wang Dali experienced the pleasure of being a cook and eating a cow.

I just held a handle and a long-handled mini scissor, and cut here and there on the lamb leg. Without any effort, I cut the entire lamb leg into pieces.

Some fascia that is usually easily stuck with a knife can also be easily separated without any lag.

"I finally felt the thrill of being a surgeon."

Wang Dali put down the handle, looked at the layers of meat on the plastic plate, and couldn't help but sigh.

In less than ten minutes, he had finished a large leg of lamb. The handle was still warm and there was no sign of heat.

The onlookers were dumbfounded, and everyone was full of praise.

"He is simply a master of surgery, so smooth."

"The boss is a good man, and he definitely chops meat at home a lot."

"You have to be very familiar with muscle texture and direction to be able to do it so smoothly. I definitely wouldn't be able to do it."

"I can only chop bones, haha."

"You guys, stop flattering me." Wang Dali smiled, waved his hand, and continued to adjust the frequency.

At this moment, there was only a thick and long thigh bone left on the table. He had to cut the bone into several small sections before the experiment was completed.

Bone tissue is much harder than soft tissues such as muscle and fascia, and the cutting threshold is 2.5 times higher.
To be continued...