Why did M5 deliver more than 3,000 sets in the first month? Can the annual sales of 300,000 words be realized?

At the Huawei Winter New Product Launch Conference at the end of December 2021, Yu Chengdong released it.AITO, the first smart car equipped with HarmonyOS smart cockpit, asks M5.This extended-range new energy vehicle has attracted attention from all walks of life since its release.

AITO inquiry M5 just released its report card in March, and inquiry M5 officially started to deliver cars to users on March 5th.In March, the sales volume was 3,160 vehicles, a year-on-year increase of 1,310.71%; In March, the output was 3,465 vehicles, a year-on-year increase of 1,667.86%.

The delivery of M5 in the first month exceeded 3,000 units, which is a good result for a new brand and new model. What does M5 rely on behind this achievement?Can Yu Chengdong’s grandiloquence of annual sales of 300,000 units shouted at the end of last year be achieved?

First of all, the world M5 is located in the medium-sized coupe SUV.Body size of 4770*1930*1625 and long wheelbase of 2880.The spatial layout of the big five seats can bring a good sense of space.

According to Yu Chengdong at the press conference, the whole vehicle was developed by Huawei and equipped with Huawei’s electric drive electronic control system.Equipped with a 40 kWh ternary lithium battery and a 1.5T turbocharged 4-cylinder range extender, WLTP has a pure battery life of up to 150KM and a full battery life of up to 1,100 km.

Except for the lowest model which is driven by rear single motor, the other three models are driven by front and rear double motors.It has ultra-high power as high as 315kW-365kW and acceleration of 0-100 for more than 4 seconds.It can give the driver a leapfrog power experience and a sense of pushing back.

In addition to running fast, the 4-cylinder range extender of the M5 is also well-known, which is said to be independently developed by Huawei.It has the highest compression ratio of 15:1, thermal efficiency as high as 41% and power generation efficiency of 3.2 kWh/h.The power generation capacity is stronger, the consumption is less, and the operation quality is very good.

Although the car weight of the M5 is more than 2.2 tons, according to the feedback from most car owners, the M5 is full of power.Suspension structure of front double wishbone and rear five-bar linkageIt also ensures the driving quality of the M5. The vibration of the ditch ridge is well filtered, the lateral support in the corner is sufficient, and the car body will not sway.

According to the real interview records,The vast majority of owners of M5 in the world favor Huawei’s HarmonyOS OS smart cockpit.

This time, Huawei installed for the M5.Kirin 990a cockpit chip, the computing power is about 3.5TOPS., supporting 5G network connection. There is a 15.6-inch intelligent central control large screen in the middle of the M5, but the change of experience is very obvious. The central control screen is like a Huawei Matebook, and its UI interaction is very simple and easy to use.

The obvious feeling of the whole intelligent central control big screen operation is that the interactive experience is very smooth and the response is very fast. The matching degree between UI design and 3D dynamic effect and touch is very high. Follow the hand, the reaction speed is fast, and the use experience is very similar to that of mobile phones and tablet computers. It can be full-screen, split-screen, and can also suspend windows.

The M5 is not only easy to use with large screen, but also sharp in intelligent voice interaction function.It not only supports the functions of continuous dialogue, visible speaking, intelligent recognition of four-tone area, but also can recognize the languages of passengers in different seats, and also has certain local dialect recognition ability.

This time, the M5 alsoEquipped with HarmonyOS brand function, also known as "seamless circulation". For example, if you are navigating with Huawei’s Petal Maps on your mobile phone, it will automatically flow to the car after getting on the bus, and then flow back to your mobile phone after getting off the bus. HarmonyOS system also supports Unicom. When you enter the car, as long as you are in the same Huawei account, you can automatically transfer from the mobile phone to the car, and call the microphone and stereo equipment in the car to let you directly switch to the scene in the car.

If the mobile phone is not HarmonyOS,Huawei has also developed a screen projection function for mobile phones.By downloading the APP, all mobile phones in the Android ecosystem can be projected with HarmonyOS Car Machine. Similar to Apple CarPlay and Baidu CarLife, but different from the latter two, and a small number of applications are put on the car screen from the mobile phone, it can put all the apps on the mobile phone on the car and realize two-way circulation at the same time.

this timeHuawei also built a set of exclusive 19-speaker sound facilities for the M5, with professional-grade effect of 1000W and 7.1 surround sound field., creating an immersive theater experience, whether it is pop, rock or symphony, it is shocking enough.

Apart from the outstanding ability of M5 itself, Huawei has tried its best to sell cars better this time.

Yu Chengdong is optimistic about the prospect of selling cars in Huawei retail stores. Huawei and Xiaokang are currently owned by the whole country.More than 500 M5 experience centers and more than 150 user centers and service outlets.It is planned to double the number of experience centers and user service outlets by the end of 2022, reaching as many as 1,000 and 300 respectively, covering all cities in China and meeting the needs of M5 users.

At present,Xiaokang can get at least 10GWh of automobile batteries every year. If all of them are used to produce the Wujie M5, the output of Xiaokang in 2022 is estimated to be about 250,000 Wujie M5 according to the current configuration of 40kWh batteries.

In terms of vehicle manufacturing, Xiaokang is still busy expanding the scale of production lines. In the first quarter of this year, Xiaokang shares raised 7.13 billion yuan in the A-share market, which was invested in "Electric Vehicle Development and Product Platform Technology Upgrade Project", "Factory Intelligent and Electric Drive Production Line Construction Project", "User Center Construction Project" and supplementary liquidity, among which "Factory Intelligent and Electric Drive Production Line Construction Project" was designed with an annual production capacity of 100,000 units.

According to relevant surveys,The main people who buy M5 are around 30-50 years old.Most of them know something about the HarmonyOS smart cockpit and acceleration of this model, and all of them use Huawei mobile phones. Most of them buy cars in order to own Huawei’s HarmonyOS eco-model, so they must have done their homework when they come to a physical store to experience or buy.

In addition, as a medium-sized extended-range SUV, the Wujie M5 has attracted more attention because it can reduce the cost of buying a Shanghai brand by buying an extended-range electric vehicle in a city where oil vehicles are restricted.

To sum up, in the price range of 200,000-300,000, the comprehensive cost performance ratio of Wenjie M5 is relatively high, with both internal and external repairs. It not only has good mechanical quality, but also has Huawei’s HarmonyOS smart cockpit and a complete offline sales and maintenance system. The monthly delivery of 3,000+is only the beginning of Wenjie M5. Although it is far from the goal of selling 300,000 units a year, it is believed that Wenjie M5 will maintain a good sales growth rate in the future.

27. Set up vendors’ standard points to develop stall economy. Netizen: It’s so smoky.

  Seimi Zhang, June 4 (Xinhua) Recently, the word "stall economy" has been completely popular, and the number of related Weibo topics has exceeded 600 million. Many places have set up vendors’ standard points to encourage the development of stall economy.

  Set up vendors’ standard points in many places to develop stall economy

  According to incomplete statistics, up to now, there are at least Shanghai, Jinan, Nanning, Zhengzhou, Nanjing, Chengdu, Hefei, Xiamen, Shaanxi, Liaoning, Jiangxi, Gansu, Changchun, Hangzhou, Changsha, Shijiazhuang, Nanning, Qingdao, Yichang, Huanggang, Deyang, Panzhihua, Guang ‘an, Nanchong, Ziyang.

  Data map: stall economy. Zhongxin jingwei photo

  Ying Xiwen, head of the macro-regional research team of the People’s Bank of China think tank, pointed out in an interview with Zhongxin Jingwei client that the stall economy has always been a "gray zone" in China’s urban economy, and its existence has certain rationality, which has alleviated the employment pressure to a certain extent, promoted the development of the tertiary industry, and at the same time activated the market and stimulated economic development.

  Zhang Zhixin, an associate professor at the School of Urban Economics and Public Administration of Capital University of Economics and Business, told the client of Zhongxin Jingwei that liberalizing the development of stall economy can meet people’s consumption demand, especially during the epidemic period, stall economy brings convenience to people’s shopping, and at the same time increases the fireworks in the city, which also meets the current requirements for epidemic prevention and control.

  The first Shanghai Nightlife Festival was launched on June 6th.

  On June 3rd, the press conference of Shanghai Municipal Government revealed that Shanghai will hold the first Shanghai Nightlife Festival from June 6th to June 30th. Create a new image of night Shanghai with fireworks, Shanghai flavor, fashion trend and international style.

  In addition, recently, Shanghai Urban Management Law Enforcement Bureau formulated and issued the Guiding Opinions of Shanghai Urban Management Law Enforcement Bureau on Optimizing the Business Environment, and Shanghai will support the development of new consumption formats. Promote the economic development of the night market, cooperate with local governments and relevant administrative departments to scientifically set up the night market, guide the night market to implement the management subject and implement merchant autonomy. Support specialty stores to carry out "external placement" operation, and implement refined management of external placement time and placement scope.

  Jinan proposes to develop "small store economy"

  On June 2nd, Liu Yanqiu, director of Jinan Municipal Bureau of Commerce, said at the press conference held by Jinan Municipal Party Committee and Municipal Government that Jinan would rationally release the street stall economy, and vigorously develop the night economy, promote consumption transformation and upgrading, and increase jobs by upgrading the IP brand of the night economy, cultivating the theme blocks of the night economy, holding special activities of the night economy, and building the brand of the night economy and culture.

  Jinan also proposed to develop "small store economy", optimize the access process of "small stores", shorten the time limit for examination and approval, and guide various formats to extend business hours; Support catering stores to increase snack categories and rest places to increase consumers’ stay time; Moderately allow businesses to make personalized shop signs, shop signs, beautiful Chen and street artists to sing, and increase the employment opportunities of urban residents.

  Nanning makes it clear that minor violations of urban management laws and regulations will not be punished.

  On June 2nd, the headquarters office of "Beautiful Nanning Clean, Smooth and Orderly Action" issued "Guiding Opinions on Doing a Good Job in Services such as Occupation Management, Road Market and Mobile Vendors", which came into effect on the 2nd and is valid until December 31st this year.

  The "Opinions" clarify that in order to protect the economy, temporary stalls are allowed to be opened near residential concentrated areas to guide self-produced and self-sold farmers and mobile vendors to regulate their operations; Encourage the use of idle areas inside and outside the community, set up temporary stalls, and where conditions permit, set up the morning market and night market. The "Opinions" also make it clear that enterprises and operators will not be punished for minor violations of relevant laws and regulations on urban management due to their production and business activities. In principle, no booth fee, booth rent and other fees will be charged to operators and mobile vendors who occupy the roads in permitted areas.

  Demonstrative zones of night economic agglomeration are arranged around Zhengzhou.

  On June 2nd, Zhengzhou issued "Opinions on Implementing People-Centered Development Thought and Doing Better Work for the People", in which it was mentioned that each county (city, district) and development zone should rationally arrange one or two demonstration zones of "night goods, night shopping, night appreciation, night tour and night health" and hold one or three night economic theme activities. To carry out the selection of night economic activities in counties (cities, districts) and development zones, the municipal finance will reward the top three with 1 million yuan, 800,000 yuan and 500,000 yuan respectively.

  On the evening of June 2, Zhengzhou Jiankang Road Night Market was very lively. Zhongxin jingwei photo

  In addition, all counties (cities, districts) and development zones in Zhengzhou should clearly plan their distribution, implement management measures, make full use of public places such as squares and parks and idle land, and set up bazaars and characteristic flea markets according to the principles of fixed time, fixed place, fixed format, fixed expenses and fixed management.

  Nanjing added 1,410 temporary outside stalls.

  On May 1st, Nanjing Urban Management Bureau issued "Guiding Opinions on Doing a Good Job in Service Management of Temporary Outside Stalls during Epidemic Prevention", requiring that obvious signs should be set up in temporary outside areas, stalls should be numbered, business items, business hours and safety tips should be publicized, and garbage should be collected separately at the site.

  On the basis of the existing 3,400 temporary stalls, Nanjing Urban Management Bureau added 134 temporary external stalls in the city this year. The area, scale and time period of setting up temporary external stalls in this opening need to be reviewed by the urban management departments of all districts. The urban management law enforcement department will resolutely investigate and deal with illegal acts such as occupying roads and unlicensed mobile stalls.

  Chengdu plans a more elaborate stall policy version 2.0

  On March 14th, Chengdu issued "Chengdu Urban Management Five Permits and One Persist in Coordinating Epidemic Prevention and Control to Help Economic Development". On the premise of ensuring safety, not occupying blind roads and fire exits, not infringing on the interests of others, and doing a good job in epidemic prevention and control, cleaning and sanitation, it is allowed to set up temporary stalls, allow street shops to operate outside the door, allow large shopping malls to carry out occupation promotion and allow mobile vendors to sell. As of May 28th, Chengdu has set up 2,230 temporary road stalls and stalls, allowing 17,147 temporary crossing points and 20,130 mobile vendors, increasing employment by more than 100,000 people.

  According to the Chengdu Urban Management Committee, Chengdu is planning a more precise and precise version of the policy 2.0, so as to realize the organic unity of standardized and orderly occupation of roads, clean and tidy city environment, convenient and fast life for citizens, more active urban consumption and stronger market atmosphere.

  Hefei stalls are divided into "forbidden areas" and "diversion areas"

  The setting area of Hefei stalls is divided into "forbidden area" and "diversion area". Among them, the "forbidden area" refers to the main roads, window units, squares, bridges (including footbridges), underground passages, the periphery of office areas, the entrance and exit of the campus within 100 meters, and other areas where stalls are not allowed to be set up as stipulated by laws and regulations. In addition to the forbidden areas, the areas outside the forbidden areas shall be demarcated by the district governments and development zone management committees and announced to the public without affecting the lives of citizens and traffic, and shall be standardized and managed according to the standards.

  There are 37 stalls in the "grooming area" to provide convenience for the public. In addition to 37 temporarily defined stalls, there are some seasonal or temporary convenience stalls in Hefei, mainly including temporary watermelon sales outlets, breakfast carts, kiosks and so on.

  Xiamen has been trying out the "booth" since 2019.

  Since June last year, the trial of "booth" has been carried out, and 50 "booth" of various types have been built in Xiamen, providing 1150 booths. In addition to the autonomy of business households, urban management and law enforcement departments also cooperate with relevant responsible units to do a good job in food safety and environmental sanitation management at these "stalls".

  Xiamen Urban Management and Law Enforcement Bureau said that it will further communicate and coordinate with relevant departments, make full use of idle venues, roads with few cars, beaches, etc., and establish flea markets, gourmet streets, fruit markets, etc. in a time-limited manner to bring more mobile vendors into orderly management.

  For the first time at the provincial level in Shaanxi Province, the "four permits" on the occupation of roads were put forward.

  On May 27th, Shaanxi Province issued a notice, proposing that "street shops in urban areas should be allowed to operate without affecting pedestrian access and ensuring safety, large shopping malls should be allowed to occupy the road for promotion, temporary stalls should be opened in residential areas, and mobile vendors should be allowed to occupy the road for operation at a certain time and area". This is the first time at the provincial level in Shaanxi Province that the "four permits" on the occupation of roads have been put forward.

  At the same time, Xi ‘an plans to set up 100 vegetable morning markets, 100 night market barbecue centralized management areas and 100 temporary food stall sites this year.

  Spreading economic related topics into hot search professional households

  Source: Weibo screenshot

  In the past few days, Weibo topics such as # Street Economy # # Urban Management called vendors to set up stalls # # Street Cars # have been on the hot search list. As of 23: 30 on June 3, the reading volume of # Street Economy # Weibo topic has exceeded 630 million, with more than 100,000 discussions.

  Source: Weibo User Comments Screenshot

  Spread the economic fire all over the country, all over the network. Netizens have said: "It is suggested that every city should leave some places for stalls, not sneaking stalls but civilized stalls, which will not affect traffic and the environment, but also increase income." "Stalls, night markets, so fireworks, like it." "The stall is really convenient and affordable and gives the community a sense of life."

  Source: Weibo User Comments Screenshot

  At the same time, netizens have also given advice to the economic development of the stalls: "The bottom line of maintaining hygiene, exclusive areas and food safety should also be adhered to." "It is allowed to set up stalls, but it can’t be arbitrarily placed, and a new harmonious and win-win economic order will be established." "Don’t overdo it, don’t be across the board."

  Expert: Letting go of the stall economy does not mean letting go of responsibility.

  During the development of stall economy, it is inevitable to cause some urban management problems, such as sanitation and pollution, traffic congestion, noise disturbing people, insecure commodity quality and safety, social security and tax evasion.

  The essay suggests taking this opportunity to solve the long-standing problem of standardizing stall economy in one fell swoop. The first is to register and manage the practitioners in the stall economy. The second is to limit the space and time of operation to avoid affecting traffic. The third is to strengthen the control of health pollution and establish an emergency management system for epidemic prevention. The fourth is to set up a service quality supervision mechanism to protect consumers’ rights and interests. The fifth is to improve management efficiency with the help of Internet thinking, such as online application, registration and tax filing.

  Zhang Zhixin said that letting go of the stall economy does not mean letting go of the responsibility, nor does it mean giving up the law. In terms of food safety, environmental pollution and other aspects related to the vital interests of the people, urban law enforcement departments must investigate reports, investigate violations and enforce the law strictly. But at the same time, we should avoid overcorrection and one size fits all. (Zhongxin Jingwei APP)

Air Force General Hospital: An Operation Story in "Off-year"

[Introduction to medical experts] Gu Jianwen, a famous neurosurgeon, is a high-level scientific and technological leader, doctoral tutor and brain surgeon in the whole army; Vice President of Air Force General Hospital; Director of the Chinese Medical Association, vice chairman of the PLA Neurosurgery Committee; Specializes in minimally invasive surgery for brain tumors. Treatment of cerebrovascular diseases, epilepsy, Parkinson’s disease and spinal diseases. Won the first prize of scientific and technological progress of the whole army in 2008 and many provincial and ministerial awards. More than 6,000 operations were completed.

[Author Brief Introduction] zhouyan, deputy chief physician of neurosurgery in Air Force General Hospital, is a doctor of medicine, and is good at treating spinal cord tumor, spinal diseases, meningioma, area spasm, trigeminal neuralgia and craniocervical junction malformation. The basic research of meningioma and microsurgical treatment of meningioma in the central area of skull base won the second prize of medical achievements of the whole army in 2007.

February 11, 2015 is a small year in the north. For Pony, a girl from Changchun, there is no joy today, only fear and anxiety. Her operation is scheduled for today. ……

25 years of "sensory separation"

From birth, she gave her parents the impression that she was particularly good. She didn’t cry when she was given an injection, and she didn’t make trouble when she bumped and wrestled. Although she was a girl, she always gave people the heroic spirit of a boy. I didn’t feel anything wrong myself. Until the 24-year-old that serious trauma, knee cruciate ligament rupture.

During the routine preoperative examination in the hospital, the doctor found that she was particularly insensitive to pain, but her sense of touch was normal. A serious problem was found in the next MRI. The pony has severe hydrops in the cervical spinal cord, which is what we call syringomyelia. And that’s not all. The cerebellar tonsil leaves its normal position and enters the cervical spinal canal, which further compresses the nerve tissue at the top of the cervical spinal canal. This is what we call "cerebellar tonsil hernia malformation", also known as Chiari malformation. To put it simply, this phenomenon of pony’s insensitivity to pain and normal touch is called "sensory separation", which is a typical symptom of syringomyelia.

For ponies that have grown for 25 years, this phenomenon does not affect their work and life. Should it be cured? My parents and newly married husband traveled to many big hospitals in Changchun and Beijing, and consulted many famous experts in detail. They learned that if they are not treated, they may continue to develop their illness, which may eventually lead to muscle atrophy and difficulty in walking, making it difficult to take care of themselves, let alone work.

Gu Jianwen, an expert in neurosurgery and vice president of the Air Force General Hospital, said: This is a congenital disease, which is caused by the abnormal development of the brain structure in the midline of the posterior cranial fossa during the embryonic period, the cerebellar tonsil extending downward, or protruding into the cervical spinal canal with the lower part of the medulla oblongata or even the IV ventricle through the foramen magnum. Syringomyelia is a chronic and progressive lesion of the spinal cord. The etiology is not very clear, and its pathological features are the formation of tubular cavities in the spinal cord (mainly gray matter) and the proliferation of glia (non-nerve cells). It often occurs in the cervical spinal cord. Obviously, it needs treatment, but,

Who will treat pony’s illness?

Who will treat the patient? For a family with an only daughter, the choice is difficult, and there is no choice to regret. Repeated comparisons, recommended by relatives and friends, after a year, I finally came to the Air Force General Hospital and found Professor Gu Jianwen, a neurosurgeon.

No matter how big the experts are, they have grown up through hardships. Faced with this case, Professor Gu Jianwen believes that the treatment is very difficult. Firstly, the stability of atlantoaxial joint needs to be evaluated in detail; Secondly, whether there is causal relationship between cerebellar tonsillar hernia and syringomyelia; Finally, how can we solve all the problems at once, so that patients can benefit greatly and suffer less. In fact, until now, these problems are still international problems. Professor Gu Jianwen decided that no matter how big the risk is, as long as there is a glimmer of hope, he will never give up. The operation must be done.

As the treating doctor of Pony, I made detailed preparations for the operation she will undergo. Arrange for her to take X-ray examination of cervical hyperextension and hyperflexion to understand the stability of atlantoaxial joint; Three-dimensional CT reconstruction of craniocervical junction was carried out to further understand the stability and observe whether there are other developmental malformations. Dr. Yu Panfeng from the Orthopedic Spinal Group was also invited to evaluate. Through evaluation, it is considered that the operation does not affect the stability of cervical spine.

Professor Gu Jianwen led us to determine the surgical plan: posterior cranial fossa enlargement+reconstruction of occipital cistern+partial cerebellar tonsillectomy+syringomyelia shunt. Four types of operations are completed at the same time, and the difficulty can be imagined.

go deep into the mountains, knowing well that there are tigers there—go on undeterred by the dangers ahead

On the day of the northern off-year, the operation began at 9: 30 am.

1. Release physical space

The first operation: the narrow posterior cranial fossa and vertebral bone were opened with rongeur, which opened the confined physical space.

2. Remove the "appendix" in the brain

The second operation: after opening the dura mater, we can see that the cerebellar tonsil herniates into the lower edge of the foramen magnum, tightly squeezing the very, very important nerve tissue. And this part of the tissue has become the "appendix" of the brain, completely useless tissue. The operation successfully removed some useless cerebellar tonsil tissue and retracted it to the normal position (foramen magnum). This is only the first step. Next, we should explore the outlet of the fourth ventricle and the opening of the central spinal canal, because this may also be the cause of syringomyelia. Exploration found that, as expected … These two openings were tightly locked by the thickened arachnoid membrane. The next step is to carefully separate and open up water channels.

3. Break through the stagnant spinal cord "dammed lake"

The third operation: exploration found that the most bulging position of the spinal cord started from the third cervical plane. The surface of the spinal cord, which used to have beautiful wrinkles, has been swollen and smooth by stagnant water. Sometimes, smoothness is not necessarily a good thing. Just as a dammed lake is a lake formed by blocking a valley or river bed and storing water by landslides caused by earthquake activities. There are four processes in the formation of the dammed lake: one is the original water system; Second, the original water system was blocked by plugs. Third, after the river valley and river bed are blocked, the flowing water gathers and overflows around. Fourth, the dammed lake will be formed when the water is stored to a certain extent. Once the dammed lake breaks, it will form a flood peak downstream, and improper disposal will lead to major disasters. Similarly, after the spinal cord is filled with water, the function of the spinal cord is gradually lost. The operation is to get through the "barrier lake" of this spinal cord.

Cutting the back of the spinal cord and placing the shunt tube is an extremely delicate and gentle job, because this position is too important, and the result of any slight difference may be disastrous. The length of the incision is only 2-3mm, and the shunt tube is as soft as hair. Moreover, there is a heavy procedure. Because this patient’s syringomyelia is not a whole, but divided into several compartments, this important operation is to use a shunt as thin as a hair to get through the compartments. This is more and more like the plot of a martial arts novel, but it is actually the case.

4. Put a big bed on the spinal cord.

The fourth operation: reconstruction of cisterna magna. The artificial dura mater is used to enlarge the cisterna magna to further reduce the pressure and provide a safer and more effective buffer zone. Let the spinal cord no longer sleep in a small bed. Instead, the external cavity of the spinal cord is enlarged, and a "Simmons" big bed is rebuilt, so that the spinal cord can sleep in the big bed this life.

The operation lasted 2 hours. After the pony recovered from anesthesia, she felt more sensitive pain in her hands. I believe that with the extension of time, the surgical effect will get better and better.

According to the custom, on the day of off-year, the Kitchen God will tell the Jade Emperor about a family’s good and evil, and return on New Year’s Eve with orders to reward the good and punish the evil, or to bless or reduce the disaster. In reality, I have never seen the characters in these customs, but as a doctor, at this moment, I suddenly feel that the wish for the well-being of patients is to repay the blessings. I sincerely hope Pony can recover smoothly and go home for the New Year.

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[Related knowledge link]

The malformation of cerebellar tonsil hernia, also known as Chiari malformation, is a congenital developmental abnormality that the cerebellar tonsil extends downward or protrudes into the cervical spinal canal with the inferior medulla oblongata or even the IV ventricle through the foramen magnum due to the abnormal development of the brain structure at the midline of the posterior cranial fossa during the embryonic period.

1, the medulla oblongata and upper compression can appear hemiparalysis or quadriplegia, tendon hyperreflexia and other pyramidal signs, sensory disorders, urinary and defecation disorders and dyspnea; Cerebral nerve involvement can include facial numbness, diplopia, tinnitus, hearing impairment, dysarthria and dysphagia, cervical nerve root symptoms such as pain in the lower occipital region, cerebellar symptoms such as nystagmus and gait irregularity;

2. There may be symptoms of increased intracranial pressure such as headache and papilla edema;

3. The brain stem and upper cervical segment are compressed and flattened, and the surrounding arachnoid adhesion and thickening can form cysts; The medulla oblongata and cervical spinal cord can be affected by compression ischemia and cerebrospinal fluid pressure, resulting in secondary syringomyelia and corresponding symptoms.