You know how the hospital lounge chair can be pulled into a bed. I believe many people are familiar with it. There is a lounge chair in the infusion area of the hospital. Its prototype is like a sofa lounge chair hospital, but the upper organs are heavy. For example, it can be pulled into a bed to facilitate patients to lie down with a sling needle. The cushion can be raised and the back can be tilted slightly, like a reclining chair. There is also a push-pull, can become a wheelchair, in the needle hanging too boring can ask relatives to push to distract.