"Mr. Lu, turn on the phone!"
Everyone looked at Lu Tingfeng eagerly.
This exciting moment, like the button that launches the rocket, must be completed by the leader.
"Okay." Lu Tingfeng laughed, took the portable defibrillator without hesitation, plugged it in, and pressed the power button.
Sanqing's logo flashed by, and in just a second, it entered the work interface.
Defibrillators are different from other devices in that they need to be started up as quickly as possible.
The patient's heart has stopped beating and rescue needs to begin immediately. If it takes thirty seconds to turn on the machine at this time, the doctor will have already started smashing the equipment.
At the beginning, there were no parameters on the screen, only a wizard icon that showed how to use the defibrillator for first aid.
"Who's going to try it first?"
Lu Tingfeng installed the electrodes, glanced around, and asked.
Of course, he didn't want to randomly test it on normal people, but wanted to test the detection effect of the electrode pads.
One end of the electrode pad can be inserted into the interface on the back of the device, and the other end has two patches that can be attached to the chest and back for electrocardiogram detection and analysis. Only when the patient's cardiac arrest is detected can defibrillation be performed.
If it is a normal beating electrocardiogram, the machine cannot be used for defibrillation. This can avoid misoperation to the greatest extent.
This is very important for defibrillators.
You should know that people with cardiac arrest can use a defibrillator, but if a normal person is shocked, the electricity may be lost directly.
Because a defibrillation electric shock is equivalent to giving the heart a restart command. If a normal person is shocked, if the electric shock lands on the vulnerable area of the myocardium, it will directly induce ventricular fibrillation, which is equivalent to the heart stopping. At that time, defibrillation is really needed. .
This is a matter of life and death, and misuse must be controlled.
Moreover, during the process of cardiopulmonary resuscitation, chest compressions usually affect the detection and analysis of the electrocardiogram. After the electrode pads are attached, the interference of the chest compressions on the electrocardiogram can be effectively avoided and the accuracy of heart rhythm analysis can be improved.
In this way, there is no need to reduce the number of chest compressions, but a two-pronged approach, defibrillation and compressions can be performed at the same time to rescue the patient as soon as possible.
Soon someone volunteered, lay on the sofa bed, lifted up his clothes, and exposed his entire smooth chest.
After the electrode pads were attached, a detailed electrocardiogram immediately appeared on the work interface of the portable defibrillator, and analysis began.
At the same time, a voice message of "Please do not contact the patient" is issued to guide the next step.
The special thing about the automated external defibrillator (AED) is that it can automatically analyze the patient's physical signs and determine whether it is suitable for defibrillation. If so, it can also automatically adjust the appropriate voltage.
In this way, even non-medical personnel can get started.
It was obvious that this was a healthy person, so the immediate conclusion was that defibrillation was not needed.
The defibrillation button is always gray and does not change color, so it cannot be used.
Even the "one-button defibrillation" physical button on the side cannot be pressed.
If it is a real cardiac arrest patient, the portable defibrillator will intelligently adjust the discharge power to perform automatic and precise defibrillation.
This can reduce defibrillation energy and greatly reduce the possibility of heart damage and skin burns.
Of course, manual defibrillation is also an option, allowing detailed settings using the "Defib" button.
"Yes, safety is still guaranteed."
Lu Tingfeng nodded with satisfaction.
Everyone checked the electrocardiogram again, and there was nothing wrong. This step of the test was considered passed.
At this time, charging is also completed, and the battery indicator on the defibrillator turns green.
"Okay, now we can test the discharge function."
Lu Tingfeng pulled off the electrode pads, entered a code on the device, and entered engineer mode.
This time the defibrillation button is operational and will discharge automatically when pressed.
After a full charge, it should be discharged 200-400 times to meet the requirements.
Of course, a discharge here must be calculated based on the minimum current.
"This is fun, let me try it."
"I'll come too."
Everyone tried the discharge operation one after another and had a great time.
"Ahem, everyone, don't forget to assemble a few more prototypes for testing, and find a CRO agency to conduct animal clinical trials."
Seeing that a group of subordinates were having a bit of fun, Lu Tingfeng warned them with a straight face.
After registration, AED, a third-class medical device, needs to pass animal experiments and be compared with similar products before it can be approved and put on the market.
Since the anatomy of pigs is similar to that of humans in terms of heart structure and blood circulation system, as well as the size of their thorax, animal experiments on defibrillators are generally conducted on pigs.
Different AED products will set different energy levels. Generally, 10 pigs are needed for each energy level, and 20 pigs are needed for 2 energy levels.
Sanqing's AED is a new product and needs to be compared with products already on the market, so 40 pigs are needed. Each pig undergoes 30 tests, and at least 1,200 must be completed before it can be used on humans.
Such animal clinical trials consume a lot of time and money. It is no wonder that some equipment manufacturers with insufficient strength want to take shortcuts.
But now pharmaceutical and device manufacturers, if they have money, have outsourced all these trivial and lengthy clinical trials to CRO companies.
The equipment team quickly installed ten prototypes and conducted more stringent verification to ensure that all functions had no problems.
Just at this time, a group of newly recruited engineers also arrived.
Lu Tingfeng had a lot more manpower on hand, so he divided into different project teams to tackle the four devices simultaneously.
In addition to these four new projects, two old projects also need maintenance and continued development.
Moreover, Lu Tingfeng also has new plans in mind. Since Sanqing's current equipment products are all portable, he wants to gradually invest manpower on this basis to develop professional equipment for hospitals.
Sanqing’s existing portable automatic defibrillators (AEDs) are still very different from the professional defibrillators used in hospitals.
The defibrillator in the hospital is the kind that people often see on TV. When the doctor is rescuing a patient, he holds something like an electric iron in his hand, and then presses it on the patient's chest. The electric shock can make the person jump out of bed. stand up.
It is generally a manual defibrillation device with more configurations and functions than an AED. The device is also larger, usually the size of a suitcase, and must be used by trained medical professionals.
AEDs can be used by medical staff, people who have received relevant first aid training, and even ordinary people under the guidance of professionals.
The scope of application and the population of AED are undoubtedly wider.
The biggest difference between the two is that the AED automatically analyzes the patient's heart rhythm and makes a decision whether to defibrillate.
However, the defibrillator must be decided and operated by a doctor based on electrocardiogram indicators, which requires professional medical knowledge.
The defibrillator also has some other monitoring functions, such as synchronized electrical cardioversion, pacing, and even some plug-ins that can measure blood pressure, blood oxygen saturation, end-tidal carbon dioxide, etc.
Although the price of a defibrillator is incomparable with medical equipment that often costs hundreds of thousands or millions, its technical content is not low.
Although it may seem like a simple electric shock to the patient, how and when to electric shock are very important.
Otherwise, wouldn't it be simpler to just pull two wires from the electrical outlet?
Just such a piece of equipment has a market capacity of several billion!
Lu Tingfeng was still quite greedy.
The monitoring function is Sanqing’s strong point, so as long as these functions are added to make a medical defibrillator, it should not be a big problem.
Of course, he is just thinking about it now. His main focus is still on the military medical all-in-one machine. He needs to make four samples of new equipment as soon as possible, and then carry out integrated design and make a medical box to complete a complete set of finished products.
When the engineer was making prototypes, he was not idle, but made improvements and redesigns based on the actual exercises he experienced in the 120 Hospital.
There are not many improvements in hardware, mainly the use of wear-resistant and durable materials that are anti-vibration and anti-fall.
However, the software needs to be adjusted according to some subtle requirements of the military.
The main purpose is to make it easy to understand and use, and to simplify the procedures to within 3 steps.
He needs to personally check this aspect and try his best to meet the needs of customers.
Time flies by quickly, and since a group of new engineers have been recruited, the manpower is very abundant, so the project progress is also very fast.
Based on the existing data, it took more than half a month to complete the prototypes of all four devices.
****
"Mr. Wei, the sample of the military medical all-in-one machine has been made. What do you think?"
Lu Tingfeng put a suitcase he was carrying on his desk and said energetically.
The box was painted with camouflage patterns and made entirely of thick hard plastic. It was about the size of a 14-inch suitcase.
"Oh? You made it so quickly?" Wei Kang was a little surprised.
"We have recently recruited a large number of people. They are all skilled workers who came from other equipment factories. They can get started immediately, so they can be made quickly."
Lu Tingfeng clicked, unscrewed the buckle, and opened the suitcase.
Then gently rotate 180 degrees to reveal the entire interior in front of the boss.
Wei Kang's eyes suddenly lit up, and he saw that the box was divided into three parts: upper, middle and lower. All the equipment was divided into categories and neatly placed inside.
The upper part is the lid, which is a thin layer with a 10-inch screen hanging in the middle, which is the display screen of the portable color ultrasound. There are several pockets and hooks on the left and right, where you can put some hoses, gauze, tourniquets and other items.
The box is thicker and divided into upper and lower layers, which can be pulled apart by a mechanical frame to make the space more spacious and convenient for accessing equipment and medicines.
The middle layer is slightly shallower, with AEDs, simple automatic respirators, and portable monitors placed on the left and right sides.
The lower floor is deeper and contains three pieces of equipment: a portable color ultrasound, a portable biochemical analyzer, a mini syringe pump, and some commonly used medicines.
Lu Tingfeng explained one by one: "Our equipment and medicines are arranged according to the order of first aid on the battlefield."
"The most important thing in battlefield treatment is to make an accurate judgment on the severity of the wounded as soon as possible."
"The most commonly used method is the combat trauma scoring method, which evaluates the three physiological indicators of the casualty: respiratory rate, systolic blood pressure, and coma status, as a reference for judging the severity of the injury and determining the order of treatment."
"Stopping bleeding and restoring breathing and heartbeat are the most important principles of first aid. I put items for stopping bleeding and bandaging on the upper floor, while the equipment on the middle floor can help medical staff perform cardiopulmonary resuscitation so that the injured can resume breathing as soon as possible."
"As for other equipment and first-aid drugs, I put them on the lower floor. This is more in line with first-aid procedures."
"In terms of first aid procedures, the patient's vital signs must first be observed and stabilized. The first is breathing and heartbeat."
“The injured can immediately put on a portable monitor to monitor physical parameters, and use a portable defibrillator and a simple respirator for rescue. If the injured person’s heart and breathing have stopped, an AED can be used to automatically defibrillate and perform cardiopulmonary resuscitation.
"If the injured person cannot breathe, the trachea can be cut immediately, a hose can be inserted, and a respirator can be used for assisted breathing."
"The second step is to observe the blood pressure, bandage and stop the bleeding. For superficial bleeding, just spray hemostatic agent. If it is a relatively large blood vessel injury, you must use a tourniquet and bandage to block the blood flow and stop the bleeding. .”
"The third step is usually to establish an intravenous channel and give rescue drugs such as epinephrine for rescue treatment. In this case, the syringe pump can come in handy."
"Finally, if the injury is more complicated, such as being shot in the abdomen, poisoning, etc., a portable color ultrasound will be needed for diagnosis. At the same time, a portable biochemical analyzer will be used to conduct a detailed routine biochemical test, and the results will be used to understand the status of the liver and gallbladder and other internal organs. .”
"Unfortunately, some fracture equipment, such as splints or braces for external fixation, cannot be put in because they are relatively large and may require additional equipment."
"Generally speaking, this first aid kit meets all aspects of battlefield first aid needs and will surely satisfy the military."
Wei Kang smiled happily and said: "Lao Lu, you are indeed thoughtful and reliable. I am very satisfied."
"It's up to you to figure out the follow-up matters. Take your time and don't be in a hurry."
"By the way, AED is very effective in rescuing sudden death. If it is widely popularized, it can save many people's lives. Let's do this. After passing the review, we will give away a batch of samples to public places in Kunming and some cities as charity. By the way, let’s spread the knowledge about first aid.”
He looked at Lu Tingfeng and saw that his eyes were full of bloodshot eyes and his expression showed a hint of exhaustion. He couldn't help but said with emotion: "Looking at you, your eyes are all red and bloodshot. Hey, there's no need to work so hard. Don't hurt your body." collapsed."
"Why don't you rest for a while first? 120 shouldn't be in a hurry. We can wait."
Lu Tingfeng was so moved that his nose felt sore, and he quickly shook his head: "It's okay, Mr. Wei, I know my physical condition well, I just need to rest for two days on the weekend and I'll be fine."
"Besides," he raised his wrist, pointed at the smart watch, and said with a smile, "hasn't the watch alarmed you yet?"
As soon as he finished speaking, the red light on the watch flashed crazily, and the piercing alarm sounded immediately throughout the room.
"Warning! Warning! If you suspect you have myocardial infarction, please stop all activities immediately and go to the hospital for a professional ECG examination."
Lu Tingfeng's smile suddenly froze on his face.
Wei Kang suppressed his laughter and said with a straight face, "Stop being brave. As a superior, I order you to go to the hospital immediately."
He looked at the watch on his wrist and said in a stern tone: "In ten minutes, if I still see you in Sanqing Garden, you should stop working on this project!"
(End of chapter)
