Siriraj's Oxygen System : Document for Reference and Maintenance

Abstract

This cross-sectional study was done during January to March 1999 by anesthesiologists, engineers and technicians to investigate the whole oxygen system in Siriraj hospital. Four liquid oxygen containers supplied 15 buildings, were connected by main pipelines whose diameter were 1 1/4 to 2 1/2 inches. There were 2,511 oxygen outlets in the wards, operating suites, emergency rooms and intensive care units (ICU). The oxygen manifolds were installed in 10 buildings as reserved supply. The inappropriateness of oxygen source, piping systems, pressure gauges, manifolds, valves, alarm systems and outlets was found and recorded. These were potentialy hazardous to the patients, personnel and related equipment such as sophisticated ventilators in ICU. Lack of qualified personnel, emergency plan, proper knowledge and maintenance were contributing factors. All inappropriateness was correctable and could be prevented. We recommend the correction and maintenance plans together with acquisition of qualified engineer to improve the safety of medical oxygen service as well as the utility of equipment. The result could be used as reference and for maintenance purpose.