At present, there is no adaptation process for the wheelchair used by the elderly, which leads to the inconsistency between people and vehicles, loss of comfort, and low use satisfaction. Therefore, we should understand these aspects when choosing wheelchairs for the elderly.
（1） Classification of ordinary wheelchair
According to the power, ordinary wheelchair can be divided into two types: self driving type and nursing driving type.
According to the function: basic type, reclining type, with toilet type, with wheelchair table type.
According to the structure, it can be divided into: frame structure and harness structure, large bearing wheel and small bearing wheel, solid tire and inflatable tire.
According to the use, it can be divided into indoor type, outdoor type and indoor outdoor compatible type.
According to the material can be divided into aluminum alloy, light material, steel, etc.
（2） Basic structure of ordinary wheelchair
Ordinary wheelchair is generally composed of wheelchair frame, wheel, brake device and seat.
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1. Seat:
Generally, the depth is 41, 43cm, the width is 40, 46cm, and the height is 45, 50cm. It has the function of bearing weight and keeping body balance.
2. Back rest
It can be divided into height, tilt and non tilt. The old people with good balance and control of trunk can choose the wheelchair with low back, which can obtain greater mobility. On the contrary, we should choose high back wheelchair.
3. Wheels
1) It can make the wheelchair move, also known as rolling wheel. It bears most of the body weight, mostly pneumatic tires, but also solid tires and low-pressure thick tires.
2) Wheel ring: driving device of wheelchair, also known as push wheel. It is installed outside the big wheel, which is unique to wheelchair. Its diameter is generally 5cm smaller than the big wheel.
The handwheel ring is generally pushed by the elderly directly. If the function is not good, in order to drive easily, you can choose to add rubber handwheel ring or thick wheel ring.
3) Small wheel: control the direction of the wheelchair, also known as the direction wheel. It bears a small part of the body's weight, and the tires are mostly made of soft rubber.
There are 12, 15, 18, 20 cm diameter of small wheels. The small wheels with large diameter are easy to cross small obstacles and special carpets. But the diameter is too big, the space occupied by the whole wheelchair becomes larger, and the movement is not convenient.
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4. Armrest
It is a metal bracket to support both upper limbs and prevent the body from tilting.
5. Foot pedal
It is composed of metal support and hard plastic plate. It supports both lower limbs and maintains body balance. It can be divided into fixed type, foldable type and detachable type.
6. Brake
There are two kinds of metal or rubber brakes, which are used to increase the wheel resistance and fix the wheel.
7. Handle
It's two rubber handles on the back of the wheelchair. The nurse can hold the handle to push the wheelchair.
8. Tilt back bar
The utility model is a metal rod, the end of which is provided with a rubber sleeve, which is located on both sides behind the lower part of the wheelchair. When the nurse steps on the lever, the wheelchair can be tilted backward and the front wheel can be raised, so as to go up and down the steps or over the obstacles.
From the Internet
