Since ancient times, natural disasters, accidents and public safety incidents have been occurring all over the world. In various disasters, rescue assistance has always been a concern for people. Stretchers are important medical tools for transporting wounded people during the rescue process. In general, at the scene of a disaster, the road is uneven, and the stretcher's smoothness cannot be guaranteed when the ambulance crew is walking on a stretcher. In addition, in the cities, people mostly live in high-rise buildings. When a serious illness such as a stroke cannot move autonomously, rescue workers also need to use a stretcher to carry out rescues. For buildings without elevators, it is easy to incline patients by stairs. Even capitulation.
In the early stages of ambulance, over-sloping in the handling process will not only increase the suffering of the sick and wounded, but also cause the condition of the wounded and sick to deteriorate. It is easy to cause secondary injuries to the wounded and sick, and the efficiency of the rescue is greatly reduced, especially for The wounded and wounded people with fractures, internal injuries and internal bleeding may even endanger their lives. Therefore, it is very important to maintain the correct posture of the body when rescuing critically ill patients. For fractured patients, a relaxed posture should be maintained to reduce the pressure on the bones. For patients with heartbeat and respiratory arrest, they should lie flat on a hard-board bed and avoid twisting the head and neck torso. In addition, the tilt of the stretcher during intravenous injection may cause air to leak from the IV tube, causing death to the wounded. How to ensure that the stretcher avoids tilting and maintains stability and reduces secondary injuries has become a major problem in rescue work. It is very difficult to meet the rescue requirements for special occasions. It is very important to study the simple and portable self-balanced stretcher to improve the rescue efficiency.
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