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S Jorgensen

Publications and source records attributed to S Jorgensen.

10 recordsLinked to original sources
PubMed1977

The 600 gram CO2 absorption canister: an experimental study.

Model investigations were performed on a canister containing 600 g of Sodasorb indicator soda lime in a transparent lime compartment used in the Hafnia circle. The CO2 input was 300 ml per min. Carbon dioxide will be efficiently eliminated from the gas mixture conveyed to the patient connection in this system for at least 4 h, irrespective of the rate of fresh gas flow. There was proportionality between the fresh gas inflow and the duration of effective CO2 elimination. The relative efficacy of the CO2 absorption was investigated at different levels in the canister. The temperature in the axis of the lime compartment was 43-52 degrees C, and the temperature of the gas mixture conveyed to the patient attachment 30-35 degrees C. The colour shift in the lime charge was a reliable indicator of the efficiency of CO2 elimination. The canister should be replaced when the colour shift has progressed to 2/3 of the lime charge. The canister contains no disposable parts except for the lime charge. All the components of the circle system should be taken apart and cleaned after each anaesthesia.

Absorption↗
PubMed1976

The dumping valve and its clinical application.

An open reservoir for the collection and evacuation of anaesthetic gases permits leakage to room air. The use of a closed reservior for the removal of overspill gas from anaesthetic circuits is described. Calibrated gas evacuation is carried out through an ejector flowmeter from the anesthetic circuit or from a closed reservoir, where the gas is collected via a relief valve. In order to eliminate the risk of high or low pressure in the reservoir employed, a relief valve and a dumping valve is included in the system.

Anesthesia, Inhalation↗