"Hello，I am Baymax，your personal health care companion"---cute as it is，Baymax in the Big Hero 6 has become one of the cutest character among movie fans over the world.This oversized inflatable robot，in fact，is an intelligent personal health care companion：in the movie，after just a simple scan，it can detect the life index of human body，and take appropriate action based on the specific circumstances of the patient.In real life，many people eager to be as lucky as the film actor Hiro，surrounded by such personal health assistant like Baymax.In fact，this is not an illusory fantasy.With the development of technology，many robots in the field of medical and health services is merging gradually into our lives，helping us to get rid of the disease problems，and enjoy a healthy life.Today，the writer will make a simple introduction of those medical robots that we have already been in touch with or will meet in the future.Among them，there are ones being specifically used in the hospital as well as those suitable to company and care for disables in common families.

Medical Robots in the Hospital

Medical robots for hospital services are under the ones of professional service field，which are widely used in the aspects of diagnosis，treatment and rehabilitation，such as：surgical robot，rehabilitation robot，micro robots，hospital care robots.Here，let's take a look at"special abilities"of these robots，and what they can help people to solve？

Surgical Robots

The most prominent surgical robot is called Da Vinci，and the robot system of is was researched and developed by the robot making tycoon，Intuitive Surgical in America.It consists 3 parts，a doctor operating system，a plurality of robotic arms and a three-dimensional imaging system.

When using this operating system，the doctor can see the high-resolution images from the 10 to 15-fold amplification of the formation of three-dimensional surgical field directly.By manipulating the handle，doctors can directly take a variety of actions as in the open surgery，when the robotic arms in a patient are able to reproduce precisely synchronized action of the doctors，and completely removing the natural hand shaking，thereby strengthening the flexibility，controllability and accuracy of the surgery.

Thanks to robots，complex minimally invasive surgery becomes simple and easy，greatly expanding the applications of minimally invasive surgery.For example，in the conventional mitral valve surgery，the surgical incision takes up to 20 centimeters，and doctors have to saw longitudinally throughout the patient's sternum，causing trauma with more bleeding，and the postoperative hospital stay is up t0 10 days，whereas it takes patient's sternum to heal for more than three months. Nevertheless，with the help of medical robots，doctors can perform the same operation from the intercostal space by the armpit of patients，with no sawing on the sternum，less bleeding and pain.After the surgery，postoperative incision can be protected by the Band- Aid，consequently greatly reducing the time and postoperative stay of intensive care，and also to a large extent reducing the suffering and economic burden of patients.

In the United States，currently there are many minimally invasive surgeries of the medical robots.Their participation rate of prostate surgery is about 85% of the total，while the full cut of uterine against malignant reaches 80% of the share，which almost replaced the traditional open surgery.

Apart from Da Vinci，there are many other outstanding surgical robots playing important roles in the hospital.For example，Discovery IGS produceln the foreseeable future，a growing number of surgical robot will appear in hospital operating rooms.They have their own"supernatural powers"that can help doctors in many respects to complete precise minimally invasive surgeries，thus not only reducing the risk of surgical patients，butalso significantly shortening the recovery time of patients after surgery，consequently bringing good news to mankind.d by GE Co.is able to achieve the full three-dimensional image Smart Guide for 4 clinical surgeries including tumors，blood vessels，nerves and heart，effectively shortening the operation time，reducing the rays as well as the use of contrast agents

Rehabilitation Robot

Rehabilitation robot，as an important branch of medical robots，at present，has been widely applied to aspects of rehabilitation，special care and intelligent prosthetic.

Rewalk is an exoskeleton system designed by lsrael.The main purpose is to assist patients with lower limb paralysis to stand and walk again.Different from many exoskeletons or artificial limbs，after a run-in training，Rewalk can act according to the thythm of users' walking habits，allowing them to feel as if walking with their own limbs.

This technology is attributed to Rewalk's powerful central processing system and high-precision sensors.The system can detect subtle changes in center of gravity position hence controlling movement，imitating the natural steps of users，and providing them with suitable walking speed.With the help of this system，even paraplegia will be able to walk independently.

Intelligent prostheses and"organ"robot is an important category of rehabilitation service robots.Innovations continue to appear in recent years，and there are often amazing products.BeBionic bionic hand is one of the outstanding representatives.BeBionic actually a myoelectric prosthetic hand. How does it work？It turns out that the brain dominates amputee stump muscles，resulting in muscle electrical signals.After being amplified，these signals can control micro-motor and finally drive the prosthetic hand，making it work under the human will.The bionic hand has the advantages of a direct sense，high control flexibility and ease of use.It also represents the direction of the development of modern intelligent prosthetics.

The biggest feature of rehabilitation robots is being highly personalized.Free intelligent prostheses connecting human nervous system is an important direction of future research.

Telemedicine Assisting Robot

In remote medical procedures，doctors often need to use telemedicine assistant to know the patient's condition and provide timely medical services.Take RP-VITA robot as an example，using mobile devices by his side，a doctor can achieve the remote control on it.As long as clicking the unit numbers on the screen or on a specific location，RP-VITA robot can autonomously navigate，avoiding obstacles，and arrive at the designated location.

Medical Supplies Transporting robot

Currently，care resources worldwide are quite in short supply.However，most of nurses' time are often wasted in waiting for the elevator or to receive medical supplies.During the process of receiving medical supplies and distribution，transporting robots can not only across the room，but can also automatically access the elevator，hence transport medical supplied across the floor or within long distance.In addition，it can automatically identify the drug，automatically lock it，to avoid errors in the transport process.With the use of medical supplies transporting robot，nurses' labor intensity can be significantly reduced labor and consequently the quality of care can be improved as well.

In addition，concerning the collection and transportation of medical waste，many transport robots also play a very important role.It is because of their use that people have successfully reduced the health hazards of medical waste as well as the probability of accidents.

Micro Medical Robot

In addition to the previous mentioned medical robots around us，there is a special kind.They can enter and make diagnosis and treatment within our bodies and are called as micro medical robot.

Capsule micro-robot is a typical representative of the micro robot.For example，capsule micro robot company produced by PiIICam.It has a smooth appearance，and is of no different from ordinary medicine capsules.Its entire system consists of three parts：the capsule body，vitro systems receiving and processing signals，positioning and drive control system.After the being energized，they can be swallowed by the patient as ordinary capsules.After entering into the body，with the human gastrointestinal motility，the robot can traverse the gastrointestinal tract.And the miniature camera carried by it can shoot cavity images at the rate of one frame every five minutes.Then through miniature wireless transmitter module，it sends as RF signals to the vitro receiving device.At this time，the medical staff are able to make medical observation and treatment in the receiving device.

In addition to these products that have been successfully applied in clinical practice，more exciting design concepts are constantly emerging.For example，recently，a micro surgical robot able to clean intravascular thrombus has entered the conceptual design stage，and caused widespread concern in the field.

In recent years，micro，pico medical robotics research has made significant progress，future medical robot can be expected even at the cellular level to treat cancer and other diseases.With breakthroughs in nanotechnology and other science and technology，ultra-miniature robots will play an increasingly important role in the field of medical and health management.

Important Accompanying Assistive Robot in the Family

Population aging will be one of the outstanding characteristic of the 21st century global demographic trends，and in China，the problem is particularly prominent.How to ease the contradiction between home care services needed by the elderly and the growing shortage of nursing resources is gradually becoming a hot issue of public concern.Emergence of caring robots will become an important means to solve the problem of empty nesters.

Nursing robot can assume part of family health care task.Even if the elderly lacks the sporting ability or are even of disability，with the help of the robot，they can also move or doing sports，hence increase the exchange of information with the outside world，and consequently improves the quality of life.Of course，not only caring for the elderly，caring robots can also help some patients for rehabilitation training，and support daily life of people with disabilities.For example，caring robot"Robear"developed by Japan not only has a lovely bear face，it can also help patients with limited mobility.It can easily lift and move the patient from a bed to a wheelchair，and what's more，it can even give the patient a gentle embrace.

In addition to caring bodies，in the real life，some accompanying robots can also make some counseling or therapy.With artificial intelligence，they can help autistic children out of the shadows，to learn how to understand and deal with basic problems in

their life，and greatly improve these children's social skills

Since needing to be in close contact with caring objects，accompanying robots should have a more comprehensive understanding on safety，reliability，and nursing knowledge.As a result，it has become a focus of current research and development scientists to make such robots update their knowledge structure，and thus adapt to new working environment through constant self-learning.In the future，the rapid development of large data and artificial intelligence technology will play a special role in this aspect.

Intelligent Cloud Robot Leading the Future

An important reason Baymax can touch the movie fans is that：It is a humanoid robot.Humanoid robot has a humanoid shape and is the best form of personal/family service.They can exchange information as well as emotions with humans.And they can serve human beings through using the existing living environment （buildings，furniture，tools，etc.），hence are easier to be accepted by humans as if they are of the same category.

However，research data show that：the human brain's calculation ability is l million times of the current highest computing power，which means that to create a robot equivalent to human calculation ability，its brain will be gigantic.But robots can not withstand such a huge head moving around.Therefore，the biggest challenge faced by humanoid robot is not how to be"humanoid"，but how to develop a"humanoid brain."

Currently，the most likely scenario to solve this problem is to store the humanoid robot"brain"on the"cloud"，making the robot have endless cloud intelligence while the robot body as a terminal device，which is placed in service on-site，thus real-time Cloud instructions can be accepted.

At present，the development of big data，cloud computing and artificial intelligence technology has made"brain cloud"possible.At the same time，safe and high-speed mobile network also ensures the connection between the cloud brain and robot body resembling human nervous system.This solution is very difficult.To achieve this，we need to make in-depth technology integration among 3 fields："the cloud（artificial intelligence），the pipe（mobile network），and the end （individual robot）".

The latest masterpiece of intelligent cloud robot must be the humanoid robot Pepper of Watson version，which was joint launched by IBM and Softbank in 2016 Consumer Electronics Show （CES2016）.IBM's Watson is able to analyze data as well as understand human language etc.The integrated Watson's Pepper can analyze social media，video，images，text and other information on a wide variety of data.In medical applications，Watson in April 2015 has officially formed a medical and health sector called Watson Health，using powerful artificial intelligence to challenge cancer.

Chinese“Baymax”Led the“Corner Overtaking”

Although R & D and manufacturing of medical robots in our country started late，and there is still a gap with the international advanced level，powerful medical robotic companies are rapidly growing.They are diligently exploring Baymax of Chinese version in their respective fields and are striving to catch up with the rapid development of the world's robots in order to realize the"corner overtaking."

"Smarobot"Medical robotic system，which was jointly researched and developed by Tianjin University and Smarobot Company of Science and Technology，can complete various surgical operations of peeling，cutting，trimming，stitching and knotting，etc.，of tiny blood vessels less than a diameter of 1 mm.Meanwhile，the"Siasun"robot is currently working on the development of robotic assisting hands of orthopedic traction，mainly focusing to solve the problem of lacking assistant robot in the healthcare industry.What's more，National Defense University makes the exoskeleton robotics research as a starting point，mainly to offer solutions for people with disabilities and the elderly.

While CLOUDMINDS Inc.which is an expert in developing cloud robots，with superior vision of the entire picture，combines top international experts from the field of artificial intelligence，mobile communications，information security，new materials and medicine，etc.，and is accelerating the development of new cloud intelligent robots.

These robots will provide services beyond imagination in health care，home escort fields.We also expect these Chinese"Baymax" can get into the household soon and help people create a better and healthy life.