Because the skin is really a human organ, it is the largest organ in the human body and its structure is very complex.
How complex it is, for example, our skin can feel sensations, which can be traced back to various strange sensory cells in the skin. These sensory cells often shock medical scientists in the scientific circle, because they are so powerful and are the work of the Creator.
It cannot be replaced by someone randomly inventing a gadget.
Among the human body's sensory cells, the most well-known ones related to the sense of touch and pressure are Meissner's corpuscles, which are mainly concentrated in the fingertips, tongue, and lips. They can distinguish touches of one hundred thousandth of a gram and extremely low frequencies of one hertz.
frequency.
How much is one gram? The weight of a peanut. Human skin can feel the touch of one hundred thousandth of a peanut. Isn’t it a good thing? The human body itself is actually very amazing.
But this is not enough to summarize the magic of skin. What else can the description of Meissner's corpuscles make people think of with shame? It's a love caress.
Meissner's corpuscle can feel your touch, is it pretending to love me?
this?
Does the skin contain divine knowledge?
Do you think this can be done by a machine?
Another physics concept that junior brother Mi Wenlin considers is "force". Force is actually a kind of interaction, and interaction often involves motion. You can go back and review Newton's three laws of mechanics in the physics textbooks in middle school.
Among the sensory cells of the human skin, the ones related to movement are Pacinian corpuscles, which can feel movements of one ten thousandth of a millimeter. Therefore, if a person puts a toothpick on any surface of an object, he can feel it immediately without even moving.
If we compare this kind of human perception with a machine, the machine is undoubtedly a waste.
The endoscope is a tool, and the robot arm is also a tool. It really cannot reach the terrifying level of perception of the human body. For the endoscope, the operating rod is like a fishing rod or chopsticks to the doctor. There are not too many links in the middle, making the "conduction" of force simple.
And it is smooth. The robotic arm of the surgical robot has too many joints, and various joint activities complicate the force. It is impossible to simply and accurately "transmit" the force from the head end to the doctor's hand.
The spine surgery department where Teacher Chang works has said that it can be divided into neurosurgery categories, which involve the important human nervous system. A major pain point in nervous system surgery has been discussed many times before, and the slightest mistake can directly cause the patient to become disabled.
If you are afraid of accidentally touching something during surgery, it is best not to touch it. Even if you touch it, it is best to just touch it lightly until you know it is touched, and avoid it immediately with your hands.
What can doctors rely on to achieve such a surgical goal?
It relies on the sensory cells in the human body that have mysterious and terrifying power.
Does this mean that machines will never be able to sense touch?
No. The laws of mechanics are there. It is also possible to measure force by using the action of force, and to feel touch according to the mechanism of human sensory cells. So she said, it is difficult, but it is not completely impossible.
It’s just that before the machine can reach the level of human body, it still needs future technological breakthroughs.
"Yingying, at your level -" Chang Jiawei looked at her, thinking of what Mr. Fu said after bringing someone back last time, and muttered who was stupid, "You should have been exposed to surgical robots. They two fools,
It’s the wrong question to ask you.”
(Zhou Junpeng: I, I, I, it’s so difficult for me.)
Senior Zhou asked her if she had ever come into contact with Senior Brother Ren's robot. She definitely had not, and she did not lie to Senior Zhou.