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Performance characteristics of a ‘to and fro’ disposable soda lime canister
Author(s) -
Shaw M.,
Scott D. H. T.
Publication year - 1998
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1046/j.1365-2044.1998.00324.x
Subject(s) - soda lime , medicine , volume (thermodynamics) , carbon dioxide , lime , ventilation (architecture) , absorption (acoustics) , anesthesia , waste management , composite material , metallurgy , materials science , thermodynamics , ecology , physics , biology , engineering
The performance of the Intersurgical disposable soda lime canister was compared to British Pharmacopoeia standards for carbon dioxide absorption and to other carbon dioxide absorber systems. This canister system more than adequately fulfilled the equivalent of the British Pharmacopoeia standard for CO 2 absorption. It performed efficiently for over 3 h of continuous use, absorbing 200 mlmin −1 at varying combinations of tidal volume and ventilation rate. Efficiency was not dependent on close matching of tidal volume with canister volume and there was no channelling of gases. Heat was generated by the reaction between soda lime and CO 2 and the maximum temperature recorded in the system was 42.1 °C. Under clinical conditions this should pose no threat of thermal injury to the patient.