Abstract: The present invention is a corpsman/medic medical assistant system that includes a portable transmit/receive pack, sensor leads for first and second physiological sensor subsystems and a corpsman/medic medical assistant control unit that includes a wireless transceiver. The portable transmit/receive pack has a sealed housing that includes the first and second physiological sensor subsystems, at least one processor running at least one algorithm, a wireless transceiver, and memory with a front panel that includes a display, at least one event key, a treatment button for recording treatment data, a timer, an observation button for recording observation data, and a plurality of physiological trend indicators. The algorithm determines a current physiological trend status of the patient based on the plurality of physiological measurements, and the transmit/receive pack links to the control unit by the wireless transceiver and receives the current physiological trend status of the patient.

Abstract: A method and system for monitoring a telecommunications signal transmission link. The system's event monitors monitor at least one transmission link. Each event monitor receives transmission link addresses from an address sequencer and transmits related event data to a centralized storage register. The address sequencer also transmits the addresses to the storage register. The event monitor compares new event data for each address with old event data stored by the event monitor. If a difference is detected, the event monitor sends a strobe signal to the storage register, which stores the event data reflecting the difference and the related address data. The strobe signal is also sent to a signaling device, which sends an interrupt signal to cause a microprocessor to read the event and address data from the storage register. In one embodiment, the signaling device does not send an interrupt signal until a threshold number of strobe signals have been received.

Abstract: A nasal cannula 1 for inclusion in medical apparatus that delivers a breathable gas mixture of helium and oxygen to a patient comprises a length 12 of high pressure narrow bore tubing having a proximal end region for connection to a high pressure source, a cylinder 2, of the breathable gas mixture at a junction 8. The length 12 of tubing has a distal end region connected to at least one nasal administration device 10. The distal end region of the length 12 of tubing has an orifice for the expansion of the breathable gas mixture.

Abstract: An oxygen sensor is fitted to the exhaust pipe of a spark ignition internal combustion engine so that it projects into the exhaust gas stream. Its output is connected to a comparator circuit which has its output connected to the actuator of a variable airflow controller which controls airflow through an air supply passage which is connected to the fuel supply jet of an air valve carburetor between the fuel metering orifice and the fuel discharge nozzle of that carburetor. The comparator circuit emits an output when the oxygen sensor detects that the ratio of the air/fuel mixture fed to the engine by the carburetor is either richer or leaner than the stoichiometric ratio. The output from the comparator circuit drives the variable air flow controller in the appropriate direction to tend to return the ratio of the air/fuel mixture fed by the carburetor to the engine towards stoichiometry. An auxiliary air supply passage may be connected to the induction passage downstream of the throttle valve.