Cardiogenic oscillations may be masked by the breathing system configuration.
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Adult↗
Biomedical subjects
N R Bhimsan
Publications and source records attributed to N R Bhimsan.
A laboratory assessment of oxygen delivery from a portable chemical generator.
A simple portable chemical oxygen generator was tested in the laboratory. The device is designed for use by the public as an oxygen supply until an emergency team arrives with appropriate oxygen cylinders. The generator was found to supply a mean (SD) flow of oxygen of 3.6 (0.01) l.min-1 for 12.5 (range 12.4-12.6)min. The mean (SD) total volume of oxygen produced was 47(0.17) l. The supplied oxygen mask was a variable performance type with the problems and limitations inherent in this design; an oxygen flow of 8 l.min-1 is required to provide 40% oxygen and most of the oxygen is wasted and not available to the patient. This poses a serious limitation to any device which has a limited capability (in flow and/or total volume) for producing oxygen.
Ambulatory Care↗
Laboratory assessment of a user-assembled oxygen generation kit.
A laboratory assessment was made of a user-assembled oxygen generation kit designed for use in medical emergencies in the community. Twenty-five kits were studied at five different water temperatures and the rate of oxygen generation and its concentration were measured. The apparatus produced a mean (SD) oxygen volume of 37 (1.98) l which was not affected by the starting water temperature. The mean (SD) rate of flow varied from 2.2 (0.04) l.min-1 at 16 degrees C to 10.3 (2.74) l.min-1 at 40 degrees C but the duration of flow varied inversely. Oxygenation concentrations ranging from 30-51% were produced at starting water temperatures from 22 degrees C-40 degrees C, respectively.
Ambulatory Care↗
Disposable chemical oxygen generators.
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Disposable Equipment↗