Abstract: A high flow rate humidifier employs a mixing body having a high pressure oxygen (128) jet that entrains water from a container (121) to provide a turbulent aerosol mixture of gas having water particles entrained therein. To remove the water particles and introduce vapor into the mixture, the mixture is passed through an evaporation chamber (200) formed by a pair of juxtaposed mutually spaced discs (202,204), each of which has a number of square holes (212a, 212b, 222a, 222b). The turbulent aerosol mixture at and about the jet orifice (132) is caused to flow linearly through the holes of the first disc into the space between the two, where it again becomes turbulent. The turbulent flow from between the discs is caused to flow linearly through the holes in the second or output disc into a mixing chamber (146) from whence the humidified gas is discharged.

Abstract: An air entrainment nebulizer obtains a high oxygen content with an optimum total flow rate by employing an oxygen jet large enough to flow about 40 liters a minute of pressurized oxygen and an air entrainment opening of a very small total size. The air entrainment opening is a configured for very fine incremental adjustment adjacent the minimal opening or nearly closed position so as to readily control oxygen content of the discharged moisturized mixture without excessively increasing total flow rate. The air entrainment aperture is divided several parallel mutually staggered elongated slots, each having a width sufficiently small to block projection of water droplets from the mixing chamber. The combination of a high flow rate oxygen jet and a small size air entrainment aperture provides a discharge outlet having oxygen percentages in the range of about 60% to nearly 100% while maintaining a total output flow rate in the order of about 40 to about 70 liters per minute.

Abstract: A longitudinal surgical scrub brush is packaged in a sealed compartment formed by two thin, flexible sheets which also include an aseptic solution containing chamber adjacent the head of the brush. The head of the brush is configured to facilitate rupture of the seal between the brush containing compartment and the separate solution compartment to allow the brush to be manipulated by the handle and to cause the head of the brush to be inserted into the solution containing compartment, thereby absorbing solution only on the bristles and sponge carried on the brush head. The brush with its head containing the absorbed solution may be withdrawn from the package by the handle, which remains free of solution, and the brush may continue to be manipulated by this solution free handle.

Abstract: A nebulizer has a mixing chamber into which is projected a high velocity jet of oxygen that aspirates water from a container connected with the mixing chamber. A compressed air input port in the chamber projects a stream of compressed air adjacent to and alongside the oxygen jet to impinge upon the tapered entrance surface of a venturi tube that forms an exit from the mixing chamber. The percentage of oxygen in the output is effectively rendered independent of output back pressure, the lower limit of the amount of oxygen in the output is lowered, the amount of water entrained in the output is increased, and the amount of waste water is decreased.

Abstract: A nebulizer providing a moistened breathing mixture for inhalation therapy is arranged to flow a gas-liquid mixture in a circular path around the inner surface of a container that is provided with shallow baffle forming ribs extending vertically across the circular flow path to trap relatively large water particles. A heater is detachably connected to the nebulizer discharge fitting and provides additional structure for trapping and removing larger water particles.