Small wheel

Diameter of 12,15,18,20 cm several, large diameter wheel easy to cross the small obstacles and special carpets. But the diameter is too large to make the entire wheelchair occupied space, the action is not convenient. Normal ferry in front of the big round, but in the lower extremity paralyzed with a wheelchair, often the small wheel after the big round. Operation should pay attention to the direction of the best wheel can be perpendicular to the big wheel, or easy to dump.

Hand wheel rims

For the wheelchair supplier (the elderly scooter manufacturers, care bed suppliers, shift machine suppliers) are unique, the diameter is generally smaller than the small wheels 5cm. Hemiplegia with one hand drive, plus a smaller diameter to choose from. Hand wheel rims generally driven by the patient directly, if the function is poor, easy to drive, can have the following changes: ⑴ in the hand wheel surface with rubber to increase the grinding Sassafras force. ⑵ increase around the hand wheel around the knob (knob). Push to have the following: ① level push. For C5 spine injury. So, brachial biceps sound, hand on the push, the elbow can push the car forward. If there is no horizontal push, you can not push. ② vertical push to put. For rheumatoid arthritis when the shoulder joint movement is limited. So can not use the level of push. ③ bold push. For patients with severe finger movement and not easy to fist, but also for osteoarthritis, heart disease or elderly patients. (Hand wheelchair driven by hand-driven Bing on hand wheel)

Tires

There are three kinds of solid, inflatable inner tube and tubeless inflatable. Solid type in the ground to go faster and not easy to blasting, easy to push, but in the uneven road vibration, and with the trough with the tire width is not easy to pull out; inflatable inner tube more difficult to push, but also easy to puncture, but Vibration is smaller than the solid; no tubing inflatable type because no tubeless puncture, and the internal also inflatable, sit up comfortable, but harder than the solid push.

brake

Large rounds should be braking each round, of course, like hemiplegia can only use one hand, had to use one hand brakes, but also can be installed extension rod, manipulation of both sides of the brakes. There are two kinds of brakes: ⑴ notch brakes. This brake is safe and reliable, but more laborious. Adjusted on the slope can also be stopped, if transferred to a level in the ground can not stop for the failure. ⑵ elbow brakes. The use of lever principle, through several joints and then brake, the mechanical advantages than the concave brake strong, but the failure faster. In order to increase the patient's braking force, often in the brakes to extend the pole, but the rod easy to damage, if not often check will affect the safety.

Chair seat

Its high, deep and wide depends on the patient's body, the material texture also depends on the disease. Generally deep 41,43 cm, width 40,46 cm, height 45,50 cm.

Cushions

In order to avoid pressure sores, it is necessary to pay great attention to the mat, and it is possible to use the eggcrate type or the Roto pad as much as possible. This pad consists of a large plastic with a large number of papillary plastic hollow columns with a diameter of about 5 cm. Are soft and easy to move, the patient after sitting on the pressure into a large number of pressure points, and the patient a little move, the pressure point with the nipple movement and change, so you can constantly change the pressure point, to avoid the same oppression Parts caused by pressure sores. If there is no such mat, you need to use layer foam, the thickness should be 10cm, the upper 0.5cm thick high-density poly (polyvinyl chloride) foam, the lower density of the same nature of plastic, high The density of those who support strong, medium and soft and comfortable. In the sitting position, the ischial tuberculosis pressure is very large, often beyond the normal capillary pressure of 1 to 16 times, easy to form a pressure ulcer. In order to avoid the pressure here is too large, often in the corresponding place on the mat to dig a piece, so that the ischial tubercles overhead, digging in front of the calcaneal nodules should be 2.5cm before the lateral side of the nodules should be 2.5cm, Depth of 7.5cm or so, dug after the mat was concave shape, the gap in the post, if the use of the mat with the incision, can be very effective to prevent the production of pressure sores.