Abstract: An anti-theft device for motor vehicles in which the ignition is rendered inoperable by a relay-operated means and the setting of certain pre-determined accessory switches in the on position and certain other pre-determined accessory switches in the off position activates the relay to render the ignition operable.

Abstract: An endotracheal tube including a preformed inflatable plastisol balloon telescopically fitted over and secured to a forward end portion of a dual-lumen tube. The inflatable balloon is formed with an elongated forward collar which is fitted onto the dual-lumen tube. The tube and collar are simultaneously severed along a biased cut to provide an open front end of the endotracheal tube. The forward collar and dual-lumen tube are then fused into a generally homogeneous mass to provide a smooth exterior sliding surface at the forward end portion of the endotracheal tube.

Abstract: A device for filtering a parenteral solution immediately before it is infused into a patient's vein. The device has a hollow housing containing a "depth" filter membrane of nonfibrous hydrophobic material having randomly connected stacked passages of from 10 to 40 micron size through the filter. After the filter membrane has had one surface in contact with the parenteral solution for a period of 15 to 60 seconds while passing only a minute amount of liquid it is then manually tapped to send a shock wave through the filter. This shock wave unexpectedly causes the hydrophobic filter to freely pass liquid and filter out more than 90 percent of all particulate matter of 5 micron size and larger from the parenteral solution. The large pore hydrophobic filter membrane can perform these filtering efficiencies with a very small, thin disc-shaped membrane of approximately 1/4 inch effective diameter.

Abstract: A thermoplastic cap having an annular skirt with external left-handed screw threads thereon and a lateral external frangible brim at a lower end of this cap. The cap fits over a dispensing outlet of a thermoplastic bottle and the brim is precision fused to the bottle to form a hermetically sealed container for sterile medical liquids. An annular jacking ring with internal left-handed threads screws onto the cap skirt to open the container by fracturing the cap at its laterally extending frangible brim.

Abstract: An improved flexible catheter for suctioning of tracheobronchial passages. In one form, the catheter is provided with side openings which are elongated in a direction generally parallel to the end surface of the tubular member, and are located adjacent thereto. The catheter may be provided with a beveled tip, in which case a second form of the invention is advantageously provided with side openings which are elongated longitudinally of the catheter, and located adjacent the top portion thereof. In a third form of the invention, the catheter has triangular side openings which combine the advantages of both of the foregoing forms of the invention. Effectiveness of the catheter is further improved by restricting the area of the end openings so that the total area of the side openings is from 1.5 to 6 times the area of the end opening. Longitudinal slots along the outer surface of the catheter, adjacent to the side holes relieve the suction and reduce tissue trauma when openings are blocked.

Abstract: A container for sterile medical liquids that has a double cap sealed closure system. A deformable thermoplastic top wall of an outer cap is spaced a distance from a top wall of an inner cap when properly sterilized. Thumb pressure on the outer cap brings the top walls of the two caps into contact. This contact provides an instant tactile test for determining that the container has been through a steam sterilization cycle and there are no leaks at the inner and outer cap seals with the bottle.

Abstract: A sterile medical liquid container system that includes an inner cap and an outer cap nested together and having interconnecting splines. The inner cap has internal right-handed threads and is screwed onto a threaded bottle neck to hermetically seal this neck. The outer cap has external left-handed threads and is fused at a frangible joint to the thermoplastic bottle. A jacking ring with internal left-handed threads screws onto the outer cap and a continuous clockwise motion of the jacking ring acts to (1) fracture the outer cap, and (2) unscrew the combined intersplined inner and outer caps from the container neck.

Abstract: A parenteral liquid bottle with a sealed leak testing chamber in its closure. This leak testing chamber has an opening sealed off by a protective thermoplastic-metal film with a permanently stretched section extending across the opening. This permanently stretched section of the film maintains either a "concave" or a "convex" shape without a pressure differential across the film. A vacuum source temporarily applied to an external surface of the film causes the film to "toggle" from its concave to its convex position indicating the chamber is properly sealed. Failure to so toggle indicates a leak in the chamber.