Abstract: A pneumatic chest compression vest is disclosed for the purposes of clearing the lungs of mucus and producing quality sputum samples for analysis. The vest is comprised of a belt and a front panel which has an air bladder that applies a compressive force to the region of the chest that encompasses the lungs mounted on its inner surface. The belt extends around a patient to hold the vest in the correct position during treatment.

Abstract: The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a molecular sieve material contained in the separation chamber. A first pumping chamber is connected to the first port. A first valve regulates a flow of the gas mixture between the first port and the first pumping chamber. A first piston is located in the first pumping chamber. A second pumping chamber is connected to the second port. A second valve regulates a flow of the product gas between the second port and the second pumping chamber. A second piston is located in the second pumping chamber. A drive system coordinates operation of the first and second pistons and the first and second valves in a cycle including a pressurization stage, a gas shift stage, and a depressurization stage.

Abstract: The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a molecular sieve material contained in the separation chamber. A first pumping chamber is connected to the first port. A first valve regulates a flow of the gas mixture between the first port and the first pumping chamber. A first piston is located in the first pumping chamber. A second pumping chamber is connected to the second port. A second valve regulates a flow of the product gas between the second port and the second pumping chamber. A second piston is located in the second pumping chamber. A drive system coordinates operation of the first and second pistons and the first and second valves in a cycle including a pressurization stage, a gas shift stage, and a depressurization stage.

Abstract: A pneumatic chest compression vest is disclosed for the purposes of clearing the lungs of mucus and producing quality sputum samples for analysis. The vest is comprised of a belt and a front panel which has an air bladder that applies a compressive force to the region of the chest that encompasses the lungs mounted on its inner surface. The belt extends around a patient to hold the vest in the correct position during treatment.

Abstract: The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a molecular sieve material contained in the separation chamber. A first pumping chamber is connected to the first port. A first valve regulates a flow of the gas mixture between the first port and the first pumping chamber. A first piston is located in the first pumping chamber. A second pumping chamber is connected to the second port. A second valve regulates a flow of the product gas between the second port and the second pumping chamber. A second piston is located in the second pumping chamber. A drive system coordinates operation of the first and second pistons and the first and second valves in a cycle including a pressurization stage, a gas shift stage, and a depressurization stage.

Abstract: An airway clearance system and method produces high frequency chest wall oscillations (HFCWO) and increased airflow velocities through the air passages to clear the lungs of mucus. The system includes a chest wall force applicator to produce the HFCWO, and an air pressure input mouthpiece system that enhances airflow to and from the patient's lungs and a simulated cough inducer that causes a cough-like airflow pattern during each oscillatory cycle.

Abstract: An apparatus for inducing sputum samples for diagnosing pulmonary disorders, especially as it relates to detection of early stages of lung cancer. The apparatus is comprised of a pneumatic chest compression vest, a pneumatic pressure generator, and a mouthpiece connected to a nebulizer. Sputum samples are induced by applying an oscillating force to the chest via the pneumatic chest compression vest and pressure generator, while simultaneously providing an aerosolized solution (such as normal or hypertonic saline) via the nebulizer while the patient is standing. The sample is subsequently evaluated to ascertain a patient's risk of or the presence of a pulmonary disorder such as lung cancer.

Abstract: An apparatus for inducing sputum samples for diagnosing pulmonary disorders, especially as it relates to detection of early stages of lung cancer. The apparatus is comprised of a pneumatic chest compression vest, a pneumatic pressure generator, and a mouthpiece connected to a nebulizer. Sputum samples are induced by applying an oscillating force to the chest via the pneumatic chest compression vest and pressure generator, while simultaneously providing an aerosolized solution (such as normal or hypertonic saline) via the nebulizer while the patient is standing. The sample is subsequently evaluated to ascertain a patient's risk of or the presence of a pulmonary disorder such as lung cancer.

Abstract: An airway clearance system and method produces high frequency chest wall oscillations (HFCWO) and increased airflow velocities through the air passages to clear the lungs of mucus. The system includes a chest wall force applicator to produce the HFCWO and an air pressure input mouthpiece system that enhances airflow to and from the patient's lungs.

Abstract: Airway resistance of a patient's lungs is measured by applying an oscillating compressive force to the patient's chest while supplying air pressure to a mouthpiece in communication with the patient's mouth so that airflow from the patient's mouth equals expiratory flow produced by the oscillating compressive force.

Abstract: A disposable pneumatic chest compression vest includes an outer shell coupled with an inner bladder. Both the outer shell and inner bladder are made from materials that emit relatively low emissions when burned. Also, the outer shell is made from a flexible, non-stretch material that provides good chest compressions. The vest is easy to position about a patient and is quickly closed by adhesive strip or other closure. When no longer needed, the vest is easily removed and disposed of as medical waste.

Abstract: An apparatus to provide golf players calculation, communication and record keeping of golf game scores. In addition communication of information pertaining to weather, flow of play, course topology and layout, advertising, service needs, emergency medical and security, rules of play and personal messages are provided to the players throughout the golf course by the apparatus. The apparatus includes a group of mechanisms distributed throughout the golf course area of play for the purpose of transferring this information between the players and the apparatus interactively and in real time. In the preferred embodiment the mechanisms distributed around the course are statically located, use photoelectric means for their electrical power needs and transfer data by radio communication means to and from a computing mechanism. The apparatus includes a computing mechanism that performs calculation steps needed to determine the golf game scores and also manages the transfer and storage of the various communications.

Abstract: An oscillatory chest compression device includes an oscillatory air flow generator and a positive air flow generator. A first feedback system controls the oscillation rate of the oscillatory air flow generator, and a second feedback system controls the peak pressure created by the positive air flow generator.

Abstract: A multi-function pneumatic chest compression apparatus provides various functions useful in both clinical and treatment environments, including mucous mobilization, breathing assistance, exhaled gas composition, and others. An air flow generator produces preselected air flows depending on the function(s) selected. These air flows are delivered to a bladder positioned about the patient. A controller receives feedback from the bladder and manipulates a valve controlling the flow of air into the air flow generator based on the feedback and preselected operating parameters.

Abstract: An oscillatory chest compression device includes an oscillatory air flow generator and a positive air flow generator. A first feedback system controls the oscillation rate of the oscillatory air flow generator, and a second feedback system controls the peak pressure created by the positive air flow generator.

Abstract: A hardware network or system is disclosed for testing LSI and VLSI logic device design and system design by simulation utilizing individual gate functions. The simulator system uses switching logic, random access memory, and a state table device to simulate particular test routines to test device design with functions which may appear in random or semi-random sequence.

Abstract: A large-scale integrated circuit (LSI) chip has an individual voltage level sensing circuit connected with each input and output connecting pin so that isolation between the pins is maintained and so that the individual level sensor output can provide an indication of an abnormal voltage on the input/output pin. The outputs of all level sensors for all input and output pins is connected in common to the input of a comparator circuit. The comparator circuit has a fault detection threshold voltage input and provides a fault indication output signal whenever the voltage input from the level sensor circuits is outside of the detection threshold voltage range. A number of logic chips will have particular input/output pins connected together in a circuit in conventional applications. An open circuit anywhere in the interconnected network will cause some number of input/output pins dependent on the fault location to be pulled out of the detection threshold voltage range.

Abstract: A test system performs dynamic testing of complex logic modules at full system clock rates and is resident on each LSI chip under test. The system logic is designed to be included on each LSI chip to reduce the time and computation required to detect and isolate faults in systems built from one or more chips. The on chip system includes switchable transmission gates to alter logic paths, a control shift register in the test function, an input shift register, an associated test generator and accumulator, an output shift register and an associated generator and accumulator. This logic provides test operands for the logic function under test and analyzes the resultant operands. Test operands are produced using a shift register connected to all inputs of the logic function under test. Checksum logic together with a shift register produce a running checksum of all output states of the module under test at the operative clock rate of the LSI.