The Effect of the Length of Delivery Tubing to the Anesthetic Gas Concentration
International Journal of Biomedical Science and Engineering
Volume 2, Issue 6, December 2014, Pages: 52-55
Received: Nov. 30, 2014; Accepted: Dec. 6, 2014; Published: Dec. 18, 2014
Views 3090      Downloads 157
Author
Mana Sezdi, Biomedical Device Technology Programme, Istanbul University, Istanbul, Turkey
Article Tools
Follow on us
Abstract
In this study, it was investigated whether the gas concentration delivered to the patient, shows changes depending on the length of the delivery tubing or not. The length of delivery tubing is important during performance tests of anesthesia vaporizer, because it may be shortened or extended if it is required. But its material type and its width does not change. To investigate the effect of length of delivery tubing, the performance test of anesthesia vaporizer may be performed for the tubes with different lenghts. In this study, for 3 different length of delivery tubing (A: 48cm, B: 100cm and C: 150cm), sevoflurane and isoflurane concentration measurements were performed. Because 5 different vaporizers were measured for each length of delivery tubing, totally 30 measurements (15 isoflurane and 15 sevoflurane) were performed. For the concentration measurements, PF301 Flow analyser (imt medical-Switzerland) and OR703 Multi Gas analyser (IRMA AX) were used. Measurement procedure were obtained from Inspection and Preventive Maintenance System (IPM) of Emergency Care Research Institute (ECRI). For sevoflurane; measurements were taken in the scale of 1%, 2%, 3%, 4%, 5%, 6% and 8%, whereas for isoflurane, were taken in the scale of 1%, 2%, 3%, 4% and 5%. Measurements were performed with an oxygen flow of 5L/min. The measurement results were investigated statistically and their mean and standard deviation were calculated. As a result, it was seen that, anesthesia vaporizers give concentrations close to each other, independently with the length of delivery tubing. There was no any gas absorption as like expected.
Keywords
Anesthesia, Anesthetic gas, Vaporizer, Sevoflurane, Isoflurane
To cite this article
Mana Sezdi, The Effect of the Length of Delivery Tubing to the Anesthetic Gas Concentration, International Journal of Biomedical Science and Engineering. Vol. 2, No. 6, 2014, pp. 52-55. doi: 10.11648/j.ijbse.20140206.11
References
[1]
M. Sezdi, A. Akan, and F. Tank, “Anesthetic gas concentration changes related to the temperature and humidity in high and low flow anesthesia,” in Proc. 31st Annual Int. Conf. IEEE Eng. Med. Biol. Soc., Minnesota, 2009, pp. 877-880.
[2]
M. Soro, F. J. Belda, M. L. Garcia-Perez, and G. Aguilar, “Functional characteristics of anesthesia machines with circle breathing system,” Current Anaesthesia & Critical Care, vol. 21(5-6), pp. 239-243, 2010.
[3]
R. A. Caplan, M. F. Vistica, K. L. Posner, and F. W. Cheney, “Adverse anesthetic outcomes arising from gas delivery equipment: a closed claims analysis,” Anaesthesiology, vol. 87, pp. 741-748, 1997.
[4]
J. B. Cooper, R. S. Newbower, and R. J. Kitz, “An analysis of major errors and equipment failures in anesthesia management:Considerations for prevention and detection,” Anesthesiology, vol. 60, pp. 34-42, 1984.
[5]
S. Fasting, and S. E. Gisvold, “Equipment problems during anaesthesia-are they a quality problem?” British Journal of Anaesthesia, vol, 89(6), pp. 825-831, 2002.
[6]
J. G. Hardman, and I. K. Moppett, “To err is human,” Br. J. Anaesth, vol. 105(1), pp. 1-3, 2010.
[7]
J. B. Cooper, R. S. Newbower, C. D. Long, and B. McPeek, “Preventable anesthesia mishaps: a study of human factors,” Qual. Saf. Health Care, vol. 11, pp. 277-282, 2002.
[8]
M. Van Beuzekom, F. Boer, S. Akerboom, and P. Hundson, “Patient safety: latent risk factors,” Br. J. Anaesth, vol. 105, pp. 52-59, 2010.
[9]
American Society for Testing and Materials (ASTM), “F1161-88 Standard specification for minimum performance and safety requirements for components and systems of anesthesia gas machines,” 1994.
[10]
Emergency Care Research Institute (ECRI), “Health devices inspection and preventive maintenance system procedure No: 436-20010301 Anesthesia unit vaporizers,” 2001.
[11]
Association of Anaesthetists of Great Britain and Ireland, “Checking anaesthetic equipment,” 3rd ed., London, 2004.
[12]
M. Sezdi, “Controlling of anesthesia vaporizers in medical calibration measurement,” in Proc.2nd International Conference on Quality in Healthcare Accreditation and Patient Safety, Antalya, 2008, pp. 49.
[13]
Handbook of OR703, imt medical, Switzerland.
[14]
I. Karagöz, and S. Cecelioğlu, “The analysis of different approaches related to the measurement uncertainty in biomedical calibration,” G.U. Journal of Science, vol. 20(3), pp. 61-67, 2007.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186