Abstract: Aerosol inhalation apparatus for supplying an aerosol mist containing radioactive tagged particles and air to a person, includes a nebulizer for producing the aerosol mist; a filter having one end open to atmosphere; a first conduit connecting the opposite end of the filter and the nebulizer; a second conduit having one end fluidly connected to the first conduit; a mouthpiece connected to the opposite end of the second conduit; and a reusable container for containing the nebulizer, filter and first conduit; whereby, during inhalation, the aerosol mist travels to the second conduit from the nebulizer and the first conduit, and during exhale, exhaust air and aerosol mist travel to the filter from the second conduit through the first conduit such that the exhaust air is expelled to atmosphere and the aerosol mist becomes trapped.

Abstract: A gun type device for removing radioactive gas from a sealed hypodermic type vial. The device includes a sealable recess including a pair of concentric hollow needles which penetrate the vial upon the closing of the chamber with a vial still remaining within a lead shielded container which then forms a part of the sealed chamber. An inlet port under control of a push button valve conducts an inert gas under compression through one of said needles to displace and mix with the radioactive gas and force the same through the other of said needles to an outlet port controlled by a second valve.

Abstract: An improved shield for enclosing the body of a hypodermic syringe to protect a user against exposure from radioactive materials. The shield is formed of two elements, including an upper element having means for engaging the barrel of the syringe, and preferably formed from lightweight metallic materials such as aluminum. A second element formed of tantalum, tungsten, depleted uranium alloy or other dense material offering a high degree of radioactivity shielding is slideably disposed within the first element, and adapted to be retracted in telescopic fashion for dose calibration and subsequent return to an adjustable extended position to cover the lower end of the syringe barrel in which the radioactive contents are contained. Without modification, this syringe shield provides for the accommodation of syringes of different manufacture having different barrel diameters, effective lengths, graduation orientation and flange geometry.

Abstract: A radioactive shielding material formed by coating or plating depleted uranium U-238 with a layer of beta ray impermeable material. The material has particular application for use as a hypodermic syringe shield component, and as shields for other hand held instruments carrying or impregnated with radioactive materials.

Abstract: A radioactive syringe shield for protecting a user from radiation emanating from a radioactive material disposed within an enclosed syringe, characterized in the provision of a removable arcuately shaped bushing positionable in the bore of the shield for decreasing the effective diameter thereof to support a syringe barrel against a single set screw. The bushing is inserted with the syringe barrel into an oversized bore in the shield permitting passage of the needle of the syringe with an intact needle cover, thereby maintaining sterility of the needle.