Automated oxygen delivery system
Automated Oxygen Delivery System
Overview
Automated Oxygen delivery system is a system where by the volume or amount of oxygen delivered through nasal cannula, mask or ventilator to the patient is based on the oxygen saturation level of the patient without the need for manual adjustment. Other names used for automated oxygen delivery system are closed loop oxygen delivery system or device, self-regulated oxygen delivery system.
Introduction
Oxygen treatment is used for patient who have problem in their pulmonary function where the amount of oxygen in the room air is not adequate enough to maintain their metabolic need. In this case patient are given a higher concentration of oxygen or larger volume of oxygen. This is very common in the premature neonates and adults with COPD. The premature neonates with respiratory failure may require oxygen for a longer period of time. The use of oxygen for a prolonged period may pose a risk for the newborn. The use of excessive oxygen in this age group for a longer period may result in oxidative damage to the eyes (retinopathy of prematurity), lungs (bronchopulmonary dysplasia) and central nervous system. On the other hand insufficient oxygen to the premature newborn can result in detrimental effect in multiple organs such as patent ductus arteriosus, hypoxic damage to the brain and pulmonary vasculature which can increase the mortality rate. Supplemental oxygen used in adults for acute respiratory failure while they are in the Hospital and chronic pulmonary diseases in and outside the Hospital. Even though the risk from too much oxygen is not as significant as in the newborn, it still poses a danger to some adult patients. At the same time an inadequate amount of oxygen may cause serious injury or death.
Therefore a regulated and balanced oxygen delivery that is within the intended range of oxygenation for the individual patient is very important in averting the possible complication of over-oxygenation and under-oxygenation.
How it works
The automated oxygen delivery system is a combination of three important units. First is a unit that monitors the arterial oxygen saturation of the patient, second, a unit that delivers a controlled flow of oxygen and third, a unit that receives an input of level Spo2 from the pulse oximeter and adjusts the amount or (flow) of FIO2(fraction of inspired oxygen).
Advantages
Disadvantages
Reference
Claure N, Bancalari E. Automated closed loop control of inspired oxygen concentration. Respir Care. 2013 Jan;58(1):151-61. doi: 10.4187/respcare.01955. Review. PubMed PMID: 23271825. retrieved on 7/20/2013 from
http://www.ncbi.nlm.nih.gov/pubmed?cmd=historysearch&querykey=1
Submited by Jemal Ebrahim Category:BMI512-SUMMER-13
