Title :
Designing of a ventilator disconnection and overpressure alarm
Author :
Jain, Ajai Kumar ; Bhattacharya, Abhijit
Author_Institution :
Dept. of Anaesthesiology & Critical Care, Univ. Coll of Med. Sci., Delhi, India
Abstract :
Ventilator disconnection and failure to ventilate the lungs due to partial or complete airway obstruction have been listed as the commonest causes of ventilator related accidents in the operating theatre and in intensive care units. Ventilator disconnection and overpressure alarms are considered mandatory for safety of patients under anaesthesia. Most of the anaesthetic ventilators used in our country do not possess this facility. We devised an electronic ventilator disconnection and overpressure alarm system using indigenously available photooptical sensors mounted on an anaeroid manometer. The system has been tried in an experimental setup as well as in 200 patients over a period of 6 months. The unit was found to be consistent, fail-proof and safe. Design aspects, working principles and clinical applications of the alarm system designed by us are presented
Keywords :
alarm systems; biomedical equipment; health hazards; manometers; optical sensors; patient care; patient treatment; pneumodynamics; pressure measurement; airway obstruction; anaeroid manometer; anaesthesia; anaesthetic ventilators; clinical applications; design aspects; electronic alarm system; intensive care units; lung ventilation; operating theatre; overpressure alarm; photooptical sensors; ventilator disconnection alarm; ventilator related accidents; working principles; Alarm systems; Auditory displays; Electronic circuits; Light sources; Lungs; Needles; Sensor systems; Signal processing; Switches; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference., IEEE
Conference_Location :
New Delhi
Print_ISBN :
0-7803-2711-X
DOI :
10.1109/RCEMBS.1995.533011
