For Christine, Alice is the student she values, and Isabella is the student of her best friend. She is also very curious about which one Chen Luo would choose.

Chen Luo thought for a while and said, "Senior Alice and I are just friends, and Isabella are also pure..."

Christine shook her head and said, "Alice will definitely be very sad when she hears this."

Britney's eyes swept across the bed inadvertently and said in surprise: "Sasha, how do you feel when you wake up? Are you better?"

Isabella sat up from the bed, looked at Chen Luo with confusion, and asked, "My head doesn't hurt at all, Blair, how did you do it?"

"It's the reason why you are in good health." Chen Luo wet the towel, wrung it out and handed it to her, and said, "Some diseases will be cured without treatment."

"I didn't expect that Blair, you also know medical skills." Christine looked at him in surprise and said, "Dr. Catherine said the same thing. She said that there are many diseases in the world that need not be cured, and she will be cured by herself. There are many that need treatment to be cured. There is still a large part of them that cannot be cured..."

Chen Luo said: "When I was bored before, I read a lot of medical books in the library."

Isabella woke up, and before Catherine could go far, Christine went out to invite her back.

Catherine looked at her carefully and said in surprise: "Isabella should have been infected with a bacteria, which leads to fever. Most of the time, just drink more water and rest, and you can recover by yourself in about seven days. But this is the first time I have seen a recovery like Isabella."

Although Isabella is now jumping like a rabbit, just now, she could only lie weakly on the bed.

In this case, there is often only one possibility, that is, she is pretending.

Many people have had this experience when they were students because they didn’t want to go to school.

Catherine didn't expose her, and asked with a smile: "Do I need to treat you again?"

Isabella's mother Anna is a doctor, so she knows very well that the doctor puts her ear on her chest. Although Catherine is a woman, Isabella still feels embarrassed and said quickly: "No, I feel that I am completely cured..."

The patient was unwilling, and Catherine didn't force her. She stood up and said to Christine: "If there is nothing wrong, I will go back to the clinic first. If there is any situation in the palace, your highness can just send someone to notify me."

Chen Luo looked at Isabella and said, "In order to prevent anything from missing, let Dr. Catherine diagnose you."

What Catherine said just now made Chen Luo realize that this beautiful and sexy woman is definitely an experienced doctor, and he can't guarantee that the healing technique will completely cure Isabella. It would be better to leave such professional things to professionals.

He took out a bamboo tube from the side, handed it to Catherine, and said, "Maybe, Dr. Catherine can try this..."

Katherine looked at him in confusion and asked, "Is this?"

"I call it a "stethoscope." Chen Luo explained: "With this, doctors can hear the sounds of the organs in the patient's body more clearly. Compared with traditional diagnosis methods, it is more hygienic and convenient, and can avoid many embarrassing occasions."

The most primitive stethoscope is actually a hollow wooden tube, which is the "father of thoracic medicine". French doctor Renek invented in the early 19th century because this stethoscope looks like a flute, also known as the "doctor's flute". For a period of time, it was regarded as a symbol of a doctor.

Catherine held the bamboo tube and murmured: "But it is just an ordinary bamboo tube..."

Chen Luo smiled and said, "This is just an original model, and I have a more mature design here."

He picked up the quill pen on one side and simply outlined the prototype of later stethoscopes, saying: "This kind of stethoscope consists of sound picking part, conducting part, and listening part. The attenuation of sound waves in solids is less than that in air, and there is almost no attenuation in metals. With the help of this device, the sound of the patient's internal organs can be amplified and help doctors diagnose..."

Seeing that Catherine still didn't seem to understand, Chen Luo walked to the wall and explained: "We stood here and couldn't hear the sound of the next room because the sound was greatly attenuated in the air, but if you put your ears close to the wall, you could hear it very clearly. This is because the wall can transmit sound better than the air. Dr. Catherine can try..."

In order to make Isabella less embarrassed and to not put her ear on Isabella's chest, Chen Luo was also worried and did not hesitate to popularize acoustic knowledge for her.

Catherine walked to the wall half-believingly and listened to it with her ears. After her expression was stunned, her face immediately turned red.

Chen Luo was stunned when he saw this. Didn’t he just let her hear the sound next door? There was no reason to blush...

Chen Luo's ears were close to the wall, and his face turned red the next moment, and he retreated.

The young couple next door could really make trouble. They had so much energy early in the morning. Chen Luo coughed dryly to cover up his embarrassment and said, "I think this thing should be helpful to the doctor."

Katherine also came back to her senses. After thinking through the principle, she looked at Chen Luo and murmured: "No, no, no, it is so helpful. This is the most useful invention in the medical field in a hundred years. With it, doctors will diagnose it more easily. Blair, you are such a genius..."

The expression on Britney's face did not change much. Her students were rare geniuses, and she had known this fact long ago.

Christine looked at Catherine in surprise and asked, "Is a bamboo tube that useful?"

Catherine held the bamboo tube and said, "I want to ask His Majesty the King to create more..."

She looked at Chen Luo and asked, "Student Blair, what are you calling it?"

Chen Luo said: "Stethoscope."

Katherine looked at Christine and said, "I want to ask His Majesty the King to create more stethoscopes, and every doctor needs it..."

Catherine used a simple stethoscope to diagnose Isabella, and the result was that she was very healthy. Although Isabella was wearing a small vest at the time, Chen Luo still walked outside avoiding suspicion.

After Katherine expressed her gratitude to Chen Luo again, she went to the palace to ask the king to customize it in large quantities.

The importance of stethoscopes to doctors is self-evident. They were regarded as the symbol of doctors in later generations. The invention of stethoscopes was the beginning of modern medicine.

While helping Isabella avoid embarrassment, Chen Luo also made significant contributions to the medical development of the Shenxiang Continent.

With the help of Christine, the first batch of stethoscopes were quickly customized. Although the materials were limited to and the effect could not be compared with the professional-grade stethoscopes in later generations, the gap between the two was not big. In the future, the doctors lie on the patient's white chest and listen to things that would not happen again.

After being cured by the healing technique, Isabella was even happier than before she became sick, which also made Chen Luo feel relieved.

At present, it seems that healing should have no side effects.

At the suggestion of Christine, Chen Luo registered a patent for the stethoscope, but he did not use it to make money. First, he was not short of money, and second, it was not technically difficult and he could not make much money. It would be better to contribute it to the Medical Association and sell them a favor.

For this purpose, the Medical Association also specially awarded him a medal. With this medal, Chen Luo can receive any medical services at the Medical Association for free in the future.

Of course, Chen Luo would never use this medal in his life. Even if he died of illness, he would not go to the medical association to endure the torture of those executioners...

In the classroom, Alice looked at Chen Luo admiringly and said, "Student Blair, I heard that every doctor in Wangdu will carry your invention with you. It is easier for you to diagnose the disease. All doctors must be very grateful to you..."

Chen Luo smiled and said, "I am also for those patients who are tortured by the disease. This can allow doctors to diagnose the condition more accurately..."

The royal capital, a luxurious manor of a certain nobleman.

A young doctor came out of the manor and was invited to treat a noble lady. When he asked the beautiful noble lady to take off her shirt, she actually gave him a stethoscope...

If a doctor diagnoses that a stethoscope is needed, why should he be a doctor?

This damn stethoscope ruined his dream of becoming a doctor.
Chapter completed!