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How to choose an electric wheelchair? The first thing we need to consider is that electric wheelchairs are for users, and each user's situation is different. From the perspective of the user, based on basic data such as height and weight, daily needs, use environment and special surrounding factors, etc., a comprehensive and detailed assessment should be carried out from the perspective of the user, so that effective selection can be carried out, gradually subtracted until a suitable electric wheelchair is selected.

How to choose an electric wheelchair? In fact, the conditions for selecting electric wheelchairs and ordinary wheelchairs are basically similar. When selecting the seat back height and seat width, the user can sit on the electric wheelchair, the knees are not curved, and the calf can be naturally lowered at a 90° right angle. The appropriate width of the seat is, at the widest position of the hips, add 1-2cm to the left and right.

If the user sits, the knees are slightly high, and the legs will be curled, and it is very uncomfortable to sit for a long time. If the seat surface is narrow, the sitting will be crowded and wide, and long-term sedentary will cause secondary injuries such as spinal deformation.

Then consider the weight of the user. If the weight is low, the use environment is flat, and the brushless motor is cost-effective; if the weight is heavy, the road condition is not very good and needs to drive long distances, it is recommended to choose a worm gear motor (brushed motor).

The easiest way to detect the power of a motor is a climbing test, whether the climbing test motor is easy or slightly strenuous. Try not to choose the motor of the horse-drawn cart. There will be many faults in the later stages. If the user has more mountain roads, it is recommended to use a worm motor.

The battery life of an electric wheelchair is also a concern for many users. To understand the properties of the battery and the AH capacity, if the product description is about 25 kilometers, it is recommended that the budget life be 20 kilometers, because the test environment and the actual use environment will differ. For example, the battery life in the north will be reduced in winter, and try not to drive an electric wheelchair out during colder times, which will cause great and irreversible damage to the battery.

Generally speaking, the battery in AH capacity and range is approximately:

• 6AH battery life 8-10 km

• 12AH battery life 15-20 km

• 20AH battery life 30-35 km

• 40AH battery life 60-70 km

Battery life is related to battery quality, weight of electric wheelchairs, passenger weight, and road conditions.

How to choose an electric wheelchair? It is also important to note the overall width of the electric wheelchair. Some families have narrow doors and need to measure the width and choose an electric wheelchair that can be freely accessed. Most electric wheelchairs have a width of 55-63cm, and some have made it more than 63cm.

When buying products, you need to carefully understand the instructions, check whether the product label brand is consistent with the manufacturer. If the product label brand is not consistent with the manufacturer, it is an OEM product.

Finally, let's talk about the warranty time. Most of them are one-year warranty for the whole vehicle, and there are also separate warranties. The controller is regular for one year, the motor is for one year, and the battery is 6-12 months.

There are also merchants who have long warranties, and ultimately follow the warranty instructions in the manual. It's worth noting that some brands have warranties based on the factory date, and some are based on the sell-by date.

When buying, try to choose a production date that is closer to the date of purchase, because most electric wheelchairs have batteries that are installed directly on the electric wheelchair and are sealed and stored and cannot be maintained separately. If left for a long time, the battery life will be affected.

Instructions for charging and using batteries

Friends who have been using electric wheelchairs for a long time may find that the battery life is slowly short, and an inspection finds that the battery drum is packed. Either you run full and run out of power, or you can't charge it how you charge it. Don't be in a hurry, tell you how to properly maintain your battery today.

1. Never charge an electric wheelchair immediately after using it for a long time

In the driving state of the electric wheelchair, the battery itself will heat up, plus the weather is hot, the temperature of the battery is even as high as 70 ℃. In the case of the battery not cooled to the ambient temperature, the electric wheelchair will be charged immediately as soon as it stops, which will exacerbate the battery's lack of water, reduce the service life of the battery, and increase the risk of battery charging.

It is recommended to park the electric vehicle for more than half an hour and charge it after the battery is fully cooled. If the battery or motor is abnormally heated during the driving of the electric wheelchair, please go to the professional electric wheelchair maintenance department for inspection and repair in time.

2. Don't charge an electric wheelchair under the sun

The battery also heats up during charging, and if charged under direct sunlight, it can also cause the battery to lose water and cause a drum bag to the battery. Try to charge the battery in a cool place or choose to charge an electric wheelchair in the evening.

3. Don't mess with chargers to charge electric wheelchairs

Charging an electric wheelchair with a mismatched charger may result in damage to the charger or damage to the battery. For example, using a charger with a large output current to charge a small battery can easily cause the battery to charge the drum pack.

It is recommended to go to a professional electric wheelchair after-sales repair shop to replace the matching high-quality brand charger to ensure the charging quality and prolong the service life of the battery.

4. Not charging for a long time or even charging all night

Many electric wheelchair users often charge all night for convenience. The charging time often exceeds 12 hours, and sometimes forgets to cut off the power to charge for more than 20 hours, which will inevitably cause great damage to the battery. Charging multiple times for a long time can easily cause the battery to charge the drum due to overcharging. Generally, electric wheelchairs can be charged for 8 hours with a matching charger.

5. Infrequent use of fast charging stations to charge batteries

Try to keep the electric wheelchair battery fully charged before traveling, and depending on the actual range of the electric wheelchair, you can choose to take public transportation for long-distance travel.

After reading this article, do you have a general understanding of how to choose an electric wheelchair?

Examination bed is a kind of medical bed, also called diagnosis bed. The examination bed mainly assists doctors in examining patients to achieve the following expected purposes: 1. Prevention, diagnosis, treatment, monitoring, and relief of diseases; 2. Diagnosis and treatment of injury or disability , guardianship, mitigation, compensation.

Exam beds are mainly used in clinics and hospitals, and are basically used in different departments. Commonly used in gynecological examination beds, it is also often used in pediatric examinations, CT examinations, obstetrics and gynecology examinations, electrocardiogram examination beds, color ultrasound examinations, endoscopy examinations, dental examinations, ophthalmological examinations, gastroenteroscopy examinations, magnetic resonance examinations, ultrasound examinations Examinations, urological examinations, portable imaging examinations, anorectal examinations, neurological examinations, TCM internal medicine examinations and many other departments.

For example, the movable multifunctional gynecological examination bed can be used for patients with illness, postoperative patients, critically ill patients, and fracture patients. For deformed and fractured patients who cannot get out of bed, the movable multifunctional gynecological examination bed can reduce the number of getting out of bed and prevent the risk of falling on the gynecological examination bed again.

Gynecology is a department that occupies a large proportion in the hospital, so it is equipped with more inspection equipment. Among them, the gynecological examination bed is one of them. Our examination bed is mainly made of stainless steel, which is reasonably set according to the human body structure. The gynecological examination bed is also known as the gynecological operating table. It is an auxiliary medical equipment to provide various hospitals, clinics, family planning stations, mobile gynecological examination vehicles for various gynecological examinations, diagnostic operations and family planning examinations. This series of products can arbitrarily adjust various body positions of patients when they visit a doctor according to the actual situation. The curve design of the product focuses on humanization and comfort, and the seamless design of the bed surface is more conducive to the cleaning of equipment and the cleaning and protection of medical staff. The power system of this series of products is driven by three power systems: full hydraulic, motor and mechanical operation.

 For example, CT examination bed, which belongs to high-end imaging examination, can clearly reflect the internal anatomical structure of human tissue, and can also clearly reflect the nature of the lesion, which provides great help for clinical treatment. CT can examine many organs and tissues of the human body, such as the skull, facial features, lungs, mediastinum, heart, liver, gallbladder, pancreas, spleen and kidney, stomach, biliary system, bowel, bladder, uterine appendages, prostate, vertebral body, limb bones, blood vessels, etc. Among them, the diagnosis of lesions by chest CT and the screening of small pulmonary nodules by artificial intelligence are the most widely used in all imaging examinations, and the advantages are also obvious.

Through magnetic resonance, we can also perform good localization and characterization of tumor tissue, as well as follow-up after treatment. For example, the more common brain tumors are in the brain or outside the brain. What functional areas are affected by its scope and region, and how to do it, magnetic resonance can also give good guidance. For example, breast cancer, we all know mammography, but most of us Chinese have dense breasts, the contrast on mammography is not very good, and sometimes the lesions are missed. Magnetic resonance imaging has a good contrast. After dynamic enhancement, it can reflect the blood supply characteristics of the lesions, and can also distinguish benign from malignant. For example, for parenchymal organs such as liver and pancreas, MRI also plays an important role. Especially in the detection of early liver cancer, in the process of the development and change of benign regenerative nodules, such as malignant liver tumors,

We can detect very small lesions very early through magnetic resonance imaging, so as to make early diagnosis and early treatment, so that the patient's prognosis is very good. For example, benign prostatic hyperplasia and even prostate cancer, which are more common in older men, can be well positioned and diagnosed on MRI. Women's uterus, uterine body cancer, cervical cancer, its staging, the accurate preoperative staging is also based on our magnetic resonance above - some characteristic signs. In addition, the application of MRI in bone and joints is also very extensive. For example, whether the bones, cortical bone, and marrow are affected, and whether the components of ligaments and soft tissues have lesions, can be well identified on MRI.

Doctors ask patients a lot of questions when making orders. For example, has the pacemaker been spared, because Dr. Chang will ask patients a lot of questions when prescribing orders. For example, have you spared the pacemaker, because often Regular pacemakers cannot enter the magnetic field. With the advancement of technology, there are also magnetic resonance compatible pacing.

However, the MRI examination should be carried out under the guidance and accompaniment of a cardiologist. The doctor will also ask if

Let go of the brackets. Currently, all brackets can enter the magnetic field, but it is limited in time. Usually within 3 weeks. To be safe, the doctor will advise the patient to re-enter after 3 months, if necessary. Check the magnetic field. Have you ever replaced artificial joints? This is also a question often asked by doctors. because of the metal joints

It cannot enter the magnetic field. But currently, most artificial joints are alloy components that can be safely entered magnetic field. Of course, there are other implants, such as electronic ear sockets, prosthetic eyes, etc., when the doctor asks

When waiting, you must answer truthfully, - everything is considered from the perspective of patient safety.

In addition, we should also pay attention to some external metals, such as keys, coins, watches, banks

Cards, mobile phones, etc., cannot enter the magnetic field. - Typically, they degauss the device or cause it to malfunction. In severe cases, these metal-containing substances will hurt the human body after entering the magnetic field, especially if they are large. A little metal object will also hurt the machine and cause the machine to malfunction, so these are also what we are entering

Special attention should be paid to magnetic fields.

one. introduction

Earthquakes or other disasters are often accompanied by a certain number of casualties, and the transport and treatment of the wounded cannot be sloppy. If a worker wants to do a good job, he must first have a sharp tool. The rescue scoop stretcher can help rescuers quickly complete the transfer of the wounded. It is a piece of essential rescue equipment for fire rescuers to rescue trapped and injured people.

Today, I will show you the rescue scoop stretcher and the transport equipment used in the rescue process. Stretcher carts are the most commonly used means of transporting patients in hospitals. Generally, stretcher carts are four-wheeled. With the diversification of the medical market, emergency equipment is constantly being updated.

Two. Types and uses of rescue scoop stretchers

There are many types of rescue scoop stretchers with different names. Common ones are folding stretchers, multi-purpose stretchers, and hanging basket rescue stretchers.

(a) Folding scoop stretcher

The foldable rescue stretcher comprises a metal frame and an oxford leather surface (or canvas). It has the characteristics of small size, lightweight, and easy use. After unfolding, the wounded can lie on it, and straps protect the upper body, waist, and steps. Suitable for transporting and transferring personnel on general occasions.

(b) Multifunctional scoop stretcher

The multi-functional stretcher is small, extremely lightweight, and easy to carry. It can be rolled into a roll at ordinary times, lifted horizontally or vertically during use, and dragged on smooth ground. The wounded inside will not fall off. It is mainly used for high-altitude, Underground, confined spaces, and mountain rescue operations.

(c) basket stretcher stretcher

The basket stretcher is mainly used for air or sea rescue. Its frame is sturdy and durable, and its simple and reliable operation performance allows operators to take first aid measures safely and quickly. The hook suspension matched with the hanging basket rescue stretcher can be connected with the hook on the plane to realize field rescue.

Three. Classification of China scoop stretcher

Its structure, function, and material characteristics can be divided into simple stretchers, available stretchers, and ambulance stretchers.

1. Simple rescue scoop stretcher

A simple stretcher is a stretcher that is temporarily made from local materials when there are no stretchers or short stretchers. Generally, two sturdy bamboo poles are used with blankets, clothing, and other sturdy fabrics to make temporary stretchers to transport the wounded under the circumstances.

2. Universal rescue scoop stretcher

Universal (standard) stretcher mainly refers to the standard rescue scoop stretcher with uniform specifications, which guarantees that it can be used interchangeably between military services and different service departments. It does not emphasize appearance and focuses on practicality. The available stretcher consists of a stretcher bar, a stretcher surface, a stretcher foot, transverse support, and related accessories, and many countries have also formulated corresponding stretcher standards.

At present, the shapes of standard general stretchers include straight rods, two-fold and four-fold.

• The straight bar stretcher is suitable for large ambulances and hospitals.

• The two-fold stretcher is suitable for position rescue.

• The four-fold stretcher is suitable for special forces.

Four.Features of available rescue scoop stretcher

1.  The rescue scoop stretcher fabric mainly uses canvas. Because of its heavyweight and poor washability, chemical fiber fabrics, such as polyethylene or polypropylene materials, are now tending to be used. The advantages of this material are strong hydrophobicity, easy cleaning and disinfection, and lightweight.

2. The stretcher bar is made of wood, and mahogany is the main material in China. There are two kinds of shapes: square tube and round tube. At present, most countries have adopted aluminum alloy materials.

3. Outrigger one adopts a square structure. Existing aluminum alloy stretcher bars are welded or riveted. Welding is difficult for thin-walled aluminum alloys, but a good welding process can solve this problem; riveting does not have this problem, but it requires high material strength and metal potential.

4. Steel cross braces: When the stretcher is unfolded, use the strength of your feet to open it. It is forbidden to use hand braces to prevent injury.

5.  The wounded fixing belt 1 prevents the wounded from sliding during the transfer process and avoids secondary injury.

6. Handle 1 There are currently three types of stretcher handles wooden, metal, and plastic. The plastic handle is light in weight, can be retracted, is especially suitable for transport vehicles with limited space, and meets the specified strength requirements.

7. Fixation and shock absorption of the rescue scoop stretcher: It mainly refers to how to fix the stretcher with the transportation tool when it is transferred to various transportation tools and how to reduce the vibration of the wounded during transportation.

Five.The rescue principle of ambulance scoop stretcher

• The lower part of the main body of the car body is equipped with a front and rear wheel retractable wheel frame system.

• ambulance scoop stretcher front-wheel retractable wheel frame system consists of front wheel strut, front wheel and main board.

• The rear retractable wheel frame system is composed of rear wheel strut, rear wheel connecting rod, rear wheel and mainboard.

Advantages of China ambulance scoop stretcher: It can realize the functions of height adjustment and automatic leg retraction of the ambulance stretcher, guardrail up and down, wheel rotation, and other parts, which can meet the needs of the wounded and the hospital. It can automatically retract the legs when getting into the car and adjust the height during the translation process, saving valuable time and ensuring the minimum number of occupants.

Magnetic resonance imaging (MRI) examination has become a common imaging examination method. MRI, as a new imaging examination technology, will not affect human health, but six types of people are not suitable for MRI examination: installation Persons with pacemakers, persons with or suspected metal foreign bodies in the eyeballs, persons with aneurysm silver clip ligation, persons with internal objects or metal prostheses, critically ill patients with life-threatening conditions, patients with claustrophobia, etc. Do not bring monitoring equipment, rescue equipment, etc. into the MRI examination room. In addition, pregnant women who are less than 3 months pregnant should not have an MRI examination.

Nuclear magnetic resonance is very safe. Although there are two words nuclear magnetic resonance, everyone can rest assured. The principle of nuclear magnetic resonance is the magnetic field produced by the machine. It mainly uses electromagnetic waves to perform inspections and present the inspection results. The magnetic field produced by nuclear magnetic resonance does not show radiation, which means that there is no radiation. It will not cause cancer, and it is a very safe and efficient inspection method. There are fewer stretcher products that can be used in the MRI room, such as stainless steel ambulance stretchers and carbon fiber scoop stretchers.

Although there is no radiation for MRI, there are certain precautions, otherwise it may lead to deviations in the inspection results and waste of inspection fees. The first is to remove all the metal accessories worn before the inspection, such as gold and silver jewelry, mechanical watches, metal buttons, etc., otherwise the presence of these metals will interfere with the magnetic field generated by the nuclear magnetic resonance. In addition, if the internal organs are checked, the patient needs to be checked on an empty stomach, not to eat anything but drinking water, and the more water you drink, the clearer the boundaries between different organs and the clearer the image. Wearing earplugs is also very necessary, because MRI is a magnetic field that will generate a lot of noise during the examination. Therefore, in order to avoid hearing loss and emotional instability due to interference, you can wear earplugs to keep quiet.

The use of magnetic resonance equipment will effectively drive the hospital to develop new clinical services and technologies, improve medical technology and diagnosis and treatment, and truly achieve early detection, early diagnosis, and early treatment of diseases, and provide better medical services to the general public.