Ventilator---Medical equipment

     A medical ventilator can be defined as any machine designed to mechanically move breathe able air into and out of the lungs, to provide the mechanism of breathing for a patient who is physically unable to breathe, or breathing insufficiently. A ventilator often is used for short periods, such as during surgery when you're under general anesthesia. The term "anesthesia" refers to a loss of feeling and awareness. General anesthesia temporarily puts you to sleep. The medicines used to induce anesthesia can disrupt normal breathing. A ventilator helps make sure that you continue breathing during surgery. A ventilator also may be used during treatment for a serious lung disease or other condition that affects normal breathing. Some people may need to use ventilators long term or for the rest of their lives. In these cases, the machines can be used outside of the hospital—in long-term care facilities or at home. A ventilator doesn't treat a disease or condition. It's used only for life support.

     While modern ventilators are generally thought of as computerized machines, patients can be ventilated indefinitely with a bag valve mask, a simple hand-operated machine. Ventilators are chiefly used in intensive care medicine, home care, and emergency medicine (as standalone units) and in anesthesia (as a component of an anesthesia machine).

      Presently, there are two types of ventilators on sale,S1100 and S1600,They are the type of electrically and pneumatically controlled synchronous respirator with time switch. They are mainly used for the saving of patients with respiratory failure field surgical operation and resuscitation after surgical operation. They can be used in the ambulance transportation and surgical operation outside, respiration medicine and operation rooms of various types of hospitals.