Abstract: A gas compression and delivery device for treatment of sleep disorders. The device has a motor, at least one impeller, and two air pressure chambers, each receiving air at a different pressure, one pressure applied to a patient during inspiration and one for expiration. A mask having a dual pressure gas delivery hose and a selector for letting in either the high or low pressure gas depending on the breathing cycle of the patient. The gas pressures are adjustable by means of valves on the separate chambers in the device. At least one sensor on the patient sending data to a controller in the device as to the patient's physiological data which is used to determine the patients breathing treatment needs. The controller may be a microprocessor with memory capability to store patient data for diagnosis and treatment of the patient. Telecommunications by telemetry, or telephony to a remote site allows home use of the device rather than institutional use with health care providers on site.

Abstract: A cylindrical main body 3 of a medicine administering device main body 1 is formed with a holder accommodating section 5, in which a capsule holding section 9 of a capsule holder 8 is disposed to be able to get in and out of the holder accommodating section 5. Accordingly, the capsule can be installed in a capsule fitting depression 10 formed in the capsule holding section 9, or the capsule after use can be taken out at a drawn-out position where the capsule holding section is drawn out of the holder accommodating section 5, so that installation and taking-out operations for the capsule can be easily made without decomposing respective parts like in a conventional technique. Additionally, the capsule can be located at a pushed-in position by pushing the capsule holding section 9 in the holder accommodating section 5.

Abstract: A variable volume ratio compound counterlung is disclosed for use with a semi-closed circuit breathing apparatus. The compound counterlung generally comprises a flexible bag member disposed within an outer counterlung member. The flexible bag member and the outer counterlung member are in communication with an exhaled gas area of a breathing loop. The flexible bag member having first and second ends which are attached to said outer counterlung. A pair of depth sensors operatively associated with the flexible bag member are provided to vary the volume of said flexible bag member with changes in depth. The flexible bag member is driven by the outer counterlung to discharge gas stored within the flexible bag member depending on the diver's respiratory minute volume. The collapsing of said outer counterlung member also returns gas stored within the outer counterlung back into the breathing loop.

Abstract: A handy oxygen generator containing an oxygen generating agent which reacts with water to evolve oxygen can arbitrarily supply plenty of oxygen under all circumstances at any time. The oxygen generator can be efficiently used particularly in life-threatening emergencies such as a fire and other accidents or when climbing a mountain or playing a sport. The oxygen generator may be formed of a sealed container partitioned into two chambers separately containing water and the oxygen generating agent, so that the separately contained oxygen generating agent and water can be mixed to react with each other by easily breaking the partition with an external pressure force. The oxygen generator containing beforehand the water along with the oxygen generating agent is very convenient to carry because it has no need of procuring water.

Abstract: An improved software control system for a positive pressure ventilator that implements the controller that regulates the ventilator solenoid as a finite state machine. The use of a state machine implementation provides multiple degrees of freedom to the designer and provides for a modular, fail safe design.