Abstract: Black-and-white elements, such as radiographic films, can be processed in roomlight because they include certain light absorbing dyes and desensitizers. Processing of such elements can be achieved using a processing kit and a two-stage process carried out in the same light- and fluid-tight processing apparatus. In the first stage, development is initiated with a developing composition having a pH of from about 10 to about 12.5, and comprising an appropriate black-and-white developing agent and a sulfite. After an appropriate time, a non-sulfite fixing agent is introduced into the processing apparatus or container to provide a combined developing/fixing composition, and development and fixing are carried out simultaneously. The processing method is carried out quickly, usually within about 90 seconds. The presence of sulfite and high pH in both stages decolorizes or deactivates the particulate dyes.

Abstract: An article of manufacture adapted to be connected to a male thread comprises an exterior surface, a cavity opening away from the exterior surface and defining an interior surface, and a plurality of ribs disposed on the interior surface extending longitudinally away from the exterior surface. The article can be connected to the male thread by threading the cavity onto the male thread. It is a particular advantage that the article of this invention, unlike prior art female threaded articles, can be prepared by conventional simple injection molding techniques not requiring an unscrewing step. In one preferred embodiment, the article is a plunger rod intended to be connected to the male threaded post of a plunger of an associated cartridge-needle unit to form a syringe assembly.

Abstract: This invention relates to a holder for use in combination with a pre-filled cartridge-needle unit, the holder comprising a hollow body sized for housing the cartridge-needle unit therein, and provision for allowing the body to move axially relative to the cartridge-needle unit. In one preferred embodiment, the distal end of the body is elliptical in cross section and the proximal end of the body is circular in cross section. In another preferred embodiment, the body comprises a pair of cam slots at the distal end and a pair or retaining slots at the proximal end, the slots being sized to accept a circumferential ring on the cartridge-needle unit and positioned to hold the cartridge-needle units in use and safe positions. The holder is easier to use and manufacture and reduces the susceptibility of health care workers to accidental needle strikes.

Abstract: This invention relates to a holder for use in combination with a pre-filled cartridge-needle unit, the holder comprising a hollow body sized for housing the cartridge-needle unit therein, and means for permitting the body to move axially relative to the cartridge-needle unit. In one preferred embodiment, the distal end of the body is elliptical in cross section and the proximal end of the body is circular in cross section. In another preferred embodiment, the body comprises a pair of cam slots at the distal end and a pair or retaining slots at the proximal end, the slots being sized to accept a circumferential ring on the cartridge-needle unit and positioned to hold the cartridge-needle units in use and safe positions. The holder is easier to use and manufacture and reduces the susceptibility of health care workers to accidental needle strikes.

Abstract: A hypodermic syringe holder adapted to receive a disposable ampoule and eject it in an axial direction. The holder comprises a plunger element, a holding element and a disposable hollow cylindrical frame portion.

Abstract: This invention relates to a collar adapted for use in combination with activatable prefilled cartridge-need units and disposable holders. The collar is adapted to fit over the hub of the cartridge-needle unit and comprises a solid circumferential neck; a circumferential foot interrupted in at least one point having inside and outside arcuate surfaces, the outside surface having thereon a circumferentially outwardly extending ring and the inside surface having thereon at least one radially inwardly extending shelf; and at least one leg connecting the neck to the foot. The collar provides improved safety reliability and thus reduces the susceptibility of health care workers to accidents, e.g., accidental needle strikes. In addition, the collar can be easily and economically manufactured, e.g., by conventional precision injection molding techniques.

Abstract: A readily assembleable, snap together hypodermic syringe holder for use in combination with disposable medicament-containing ampoules is adapted to immobilize an ampoule within the syringe holder and provide manual aspirating capability.