⑴ Seat width: Measure the distance between the two hips or between the two strands when sitting down. After adding 5cm, that is, there is a gap of 2.5cm on each side after sitting down. The seat is too narrow, it is difficult to get on and off the wheelchair, but the hip and thigh tissues are compressed; the seat is too wide, it is difficult to sit firmly, it is inconvenient to operate the wheelchair, the limbs are easy to fatigue, and it is difficult to get in and out of the gate.
⑵ Seat length: Measure the horizontal distance from the hip to the calf gastrocnemius when sitting down, and reduce the measurement result by 6.5cm. If the seat is too short, the weight will mainly fall on the sit bones, which will easily cause excessive local pressure; if the seat is too long, it will compress the popliteal area and affect the local blood circulation, and it is easy to irritate the skin. For patients with short thighs or flexion contractures of the hips and knees, it is better to use a short seat.
⑶. Seat height: Measure the distance from the heel (or heel) to the popliteal socket when sitting down, plus 4cm. When placing the pedals, the board should be at least 5cm above the ground. If the seat is too high, the wheelchair cannot enter the table; if the seat is too low, the seat bones will bear too much weight.
⑷ Cushion In order to be comfortable and prevent bedsores, a cushion should be placed on the chair of the wheelchair. Common cushions are foam rubber cushions (5-10cm thick) or gel cushions. To prevent the seat from sinking, a 0.6cm thick plywood can be placed under the cushion.
⑸, *Back height: *The higher the back, the more stable, the lower the back, the greater the upper body and upper limb activities. Low*back: measure the distance from the sitting surface to the armpit (with one or both arms stretched forward), and subtract 10cm from the result. High*Back: Measure the actual height from the sitting surface to the shoulders or back occiput.
⑹ Armrest height: When sitting down, the upper arm is vertical, and the forearm is flat on the armrest. Measure the height from the chair surface to the lower edge of the forearm and add 2.5cm. Proper armrest height helps maintain correct body posture and balance, and enables upper limbs to be placed in a comfortable position. The armrest is too high, the upper arm is forced to lift up, and it is easy to feel fatigue. The armrest is too low, you need to lean forward to maintain balance, not only easy to fatigue, but also can affect breathing.
⑺. Other auxiliary parts of wheelchair: It is designed to meet the needs of special patients, such as increasing the friction surface of the handle, the extension of the carriage, the anti-vibration device, the armrest of the armrest, or the wheelchair table that is convenient for the patient to eat and write, etc.
(8) Check the weight: Because your goal is to buy a lightweight wheelchair, choosing a lightweight wheelchair is the first requirement. A lighter wheelchair is obviously a better choice. It is not only easy to carry, but also easier to use. This means it will be easier to operate. Relatively speaking, a lighter wheelchair will be more expensive.
(9) Check materials: When looking for a lightweight wheelchair, you should check the materials used in the wheelchair and the durability of the materials. More importantly, the weight of the material. The most common material is stainless steel. However, the problem with stainless steel is that it will be heavy. Therefore, the recommended material is aluminum, although the price of such a material will be higher.
(10) The quality of tires: You should also look at the quality of tires on wheelchairs. The wheel must fit all types of surfaces so that it can be used in different places. Make sure it will never be flat.
(11) Pay attention to comfort: lightweight wheelchairs with different characteristics need to be checked. Avoid the discomfort caused by sitting in a wheelchair for a long time. It is important to ensure that the height and width of the seat are suitable for the user. It should also have cushioning materials. Handrails are also essential. It should not only make the sitting person feel comfortable, but also facilitate the person pushing the wheelchair.
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