Biomedical subjects
Publications and source records attributed to R A Denton.
We present a case of Nd:YAG laser treatment of nearly total airway obstruction by malignant tumor in which an endobronchial fire occurred. The patient survived without complications of the fire and was followed-up until death over 22 months after the fire. The events leading to the fire are presented and recommendations provided to prevent similar occurrences.
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Instrumented anthropomorphic dummy surrogates of humans have been used in automobile occupant crash protection research and development programs for many years. Lower leg instrumentation provides the safety engineer with a valuable tool for gaining otherwise unavailable insights into occupant restraint system performance. Instrumentation described in this paper constitutes an advancement of the state of the art of dummy test technology. A more comprehensive study of crash victim leg loadings is possible with only the traditional femur (upper leg) axial force transducer. Each lower leg has five electrical resistance strain gage circuits to monitor orthogonal bending moments and axial force. Stress analysis and Wheatstone bridge theories are combined in the paper to define strain gage locations and predict transducer sensitivities. Transducer fabrication and calibration precedures are also discussed.