Ultrasonic Oxygen Sensor for Medical Ventilation Application ICU Ventilator introduction A medical ventilator is a mechanical ventilator, a machine designed to move breathable air into and out of the lungs, to provide breathing for a patient who is physically unable to breathe, or breathing insufficiently. While modern ventilators are computerized machines, patients can be ventilated with a simple, hand-operated bag valve mask. 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). When we need ICU ventilator ? Patients who experience cardiac events such as a Heart Attack (Myocardial Infarction) or Congestive Heart Failure may also be placed on a ventilator. A patient who experienced a severe head injury or trauma may be on a ventilator and/or placed in a medically induced coma to allow for healing. A ventilator takes over the breathing for the patient. But there are different settings. Patients may be totally dependent on the ventilator or may be able to do some breathing on their own. The ventilator has different settings based on the individual patient's needs. The use of the ventilator via an endotracheal tube (breathing tube in mouth) or tracheostomy (breathing tube in trachea through a stoma in the neck) also enables the health care practitioner to suction out secretions that impeded oxygen exchange in the lungs. To prevent the patient from becoming ventilator dependent there is a weaning process that is initiated as the patient's condition improves. How does the ICU ventilator works ? A ventilator takes over the breathing for the patient. But there are different settings. Patients may be totally dependent on the ventilator or may be able to do some breathing on their own. The ventilator has different settings based on the individual patient's needs. The use of the ventilator via an endotracheal tube (breathing tube in mouth) or tracheostomy (breathing tube in trachea through a stoma in the neck) also enables the health care practitioner to suction out secretions that impeded oxygen exchange in the lungs. To prevent the patient from becoming ventilator dependent there is a weaning process that is initiated as the patient's condition improves.

Gasboard7500E oxygen concentration measurement in ICU ventilator : Gasboard7500E ultrasonic gas flow and oxygen sensor use the ultrasonic velocity difference between upstream and downstream to detect the gas flow and also the oxygen purity for ICU ventilator. It is generally used for testing oxygen concentration of binary mixture such as A (oxygen) In A+B ( A and B have different density and different travel speed). A is oxygen, and B is usually air. It is reliable and low cost for integration into ICU ventilator with high accuracy for oxygen concentration measurement . Features of ultrasonic...