Abstract: A heart valve prosthesis with a valve ring and at least one substantially elongated wing valve pivotally mounted about an axis located in the plane of the valve ring, in which the bearings of the wing valve or valves are in each case formed by a swivel pin, defining the swivel axis and fixed to the valve ring, a groove constructed in the wing valve and extending therethrough transversely to the axis and whose width corresponds to the diameter and whose depth corresponds to the length of the swivel pin, a first guide pin fixed to the valve ring, a first, convex slide cam constructed on the wing valve and which cooperates with the first guide pin, a second guide pin fixed to the valve ring and a second, convex slide cam constructed on the wing valve and which cooperates with the second guide pin, the spacing from one another of the two slide cams measured over the imaginary connecting line between the centers of the guide pins, in each position of the wing valve, corresponds to the internal, mutual spacing of t

Abstract: Prosthesis for the replacement of heart valves, with a valve ring (10) with a radius R, in which at least two substantially elongated wing valves (12, 14, 16) are mounted so as to rotate about in each case an axis (18) located in the ring plane, the axes (18) in the projection on the ring plane having a distance of 0.5 R to 0.9 R from the center of the ring plane and the edges of the inwardly directed portions engage in flush manner on the edges of the corresponding portions of the other wing valves (12, 14, 16) and in the area (20) of the wing valves (12, 14, 16) pointing in the flow direction in the opened state thereof, said valves are provided with a bevel (24), constructed as a sharp break-away edge (22), running from the outside to the inside in the flow direction.

Abstract: An improved implantable infusion pump comprises a propellant chamber, a medicament chamber, and a throttle section. Enclosed within the throttle section is a medicament delivery system comprising a chip having a fluid path etched in an upper surface, inlet and outlet depressions formed in the chip lower and upper surfaces respectively, and a channel formed through the chip connecting the inlet with the fluid path. A planar cover, preferably transparent, covers the chip upper surface. A pair of wafers surround the chip within the throttle section and pair of silicon coatings are positioned between the chip and the pair of wafers. Various bores, apertures, and recesses are formed in the wafers, the cover, and the coatings, for permitting the medicament fluid to pass through the throttle section. An alternate embodiment employs a plurality of fluid paths and a plurality of outlets permitting different throttle resistance.

Abstract: Implantable infusion pump having a casing, which receives a bellows receiving a propellant producing a vapour pressure and forming a space receiving a medicament and having a throttle means and a connection for a catheter, in which the space receives at least one resilient plastic bag containing the medicament and which is provided with a coupling piece to be attached to the throttle means.

Abstract: A process and an apparatus for adjustment of a switchable, flow-limiting device for limited flow of liquids or gases employs a remote service device. The flow-limiting device and the service device are spatially separated and there is no bodily connection between the two. Energy necessary for adjustment of the flow-limiting device is transmitted from the service device into an infusion pump that contains the flow-limiting device. The flow-limiting device is a valve having three stable operating positional states. The valve can only be switched while energy is being transmitted from the service device.

Abstract: A method and apparatus for vertically scoring a tamper-indicating plastic closure includes a rotatably-driven carousel which includes mandrel assemblies at the periphery thereof. Each mandrel assembly includes a rotatable mandrel on which a respective closure is positioned in operative association, so that the mandrel and closure are moved relative to an associated scoring mechanism. The scoring mechanism includes at least one, and preferably a plurality, of rotatably driven scoring blades, with each blade arranged to engage and cut the pilfer band of a respective closure. Significantly, the system can be operated so as to closely approximate the preferred radial movement of the blade with respect to the closure, thus minimizing "digging" of the scoring blade into the plastic of the closure.

Abstract: Apparatus for the reliable filling of at least two containers below the skin surface, particularly of an infusion pump, with two septa made from a soft material, so that easy perforation by needles is possible and further seals which are positioned after the septa, at least one space being in each case provided between the seals and the septa connected to the catheters or containers to be filled, in the case of different septa said spaces being at different distances from a needle stop, a corresponding number of needles with lateral openings for filling purposes are provided and the openings for different needles are at different distances (A, B) from the needle tip.

Abstract: An infusion pump with a flexible medication container, a chamber containing a C.sub.2 Cl.sub.2 F.sub.4 propellant gas acting upon the medication container and a capillary tube acting as a choke. The propellant gas chamber accommodates a pressure of 2.5 bar over atmospheric.

Abstract: In the spraying of an aqueous liquor comprising at least one of 1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan-3-ol and 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-ol, the improvement which comprises including in the liquor an N-alkyl-lactam of the formula ##STR1## in which R represents alkyl having 8 to 18 carbon atoms andn represents the numbers 3, 4 or 5,

Abstract: Crystallization of active material in spraying of an aqueous solution of certain specified fungicides is retarded by incorporation therein of an N-alkyl-lactam of the formula ##STR1## in which R represents alkyl having 6 to 18 carbon atoms andn represents the numbers 3, 4 or 5.

Abstract: A device for fastening the abutment of a bowden cable on a constructional element in which a T-bolt is fastened on the constructional element, a fastening tab is provided on the abutment the fastening tab has a keyhole-like recess, the recess has a greater opening for the passage of the head of the T-bolt and a smaller opening which is somewhat greater in diameter than the diameter of the shank of the T-bolt, and a collar for supporting the head of the T-bolt is provided round the small opening; when the T-bolt is introduced with its shank into the smaller opening of the recess and the head of the T-bolt rests on the collar. The abutment is secured on the constructional element.

Abstract: A plastics push button for fastening an article such as trim strip or body panel to a motor body using weld studs attached to the surface of the motor body comprises a large circular retaining head at one end of a short, hollow cylindrical stem and a circular skirt at or near the other end of the stem, the diameter of the skirt being substantially equal to the diameter of mounting holes provided around a panel or at intervals along the length of a trim strip and the diameter of the head being greater than that of mounting holes, the skirt being provided with a plurality of protruding, resilient fringe members which can lightly engage the rim of a mounting hole and the bore of the cylindrical stem being provided with resilient fingers which can engage the projections of a weld stud when the push button is pressed through a mounting hole so that the cylindrical head abuts the top surface of the article and the cylindrical stem passes through the mounting hole and is pressed over the weld stud so that the articl

Abstract: Crystallization of active material in spraying an aqueous solution of one of ##STR1## and is prevented by incorporation therein of an alkylcarboxylic acid dimethylamide of the formula ##STR2## in which R represents alkyl having 5 to 19 carbon atoms.

Abstract: A plough guide which is composed of guide sections mounted on the working face side of the runs of channelling of a scraper chain conveyor. Toggle connections are provided on the abutting ends of the plough guide sections. Compartments accommodating the toggle connectors are situated on the rear parts of the guide sections resting against the side walls of the runs of channelling, and are preferably provided in reinforcement plates welded to angle plates. To secure the toggle connectors in the compartments the toggle connectors are provided with securing elements extending from the connector compartments into the plough guide and secured in this latter, preferably between adjacent sliding spacers. The securing elements take the form of handle-like plates which with advantage can be pivotably mounted on the toggle connectors.

Abstract: A plough guide which is built onto the runs of channelling of a scraper chain conveyor, has angle plates which form a slide path for the plough and which are connected by their upwardly extending sides to the runs of channelling. Sliding spacers are provided behind a covering between an upper chain channel and a lower chain channel. Covering hoods which form the covering for the channels are each pivotably mounted to a lower guide beam. The hoods can be swung over on the pivot joints towards the face in order to open the upper chain channel. The spacers are connected to the angle plates via fitting plates which are rigidly connected thereto and which extend upwards beyond the spacers. The fitting plates are provided with centering pins which engage centering apertures in the angle plates. The fitting plates can be connected to the sliding spacers and/or the angle plates by welding.

Abstract: A cable-securing device having a locking head and a flexible strap extending therefrom in the form of a ladder having cross bars extending between parallel side members. The cross bars are larger than the separation of the side members so that they are bent as they lie in the plane of the side members. The device has a projecting locking peg which forms a cable-securing loop when a cross bar is engaged by the locking peg.

Abstract: A plough guide is composed of sections built onto the runs of channelling of a scraper chain conveyor. Behind a covering comprising covering hoods pivotable on joints, there are chain guide channels for the plough chain separated by spacers. Underneath each covering hood there is a robust guide beam which forms part of a lower guide for the plough. Each guide beam of solid rolled section is provided at each of its two ends with a recess into which is welded a stout bearing plate which on a level with the spacers. The bearing plates are equipped with open journal bearings for hinge pins positioned at the foot of the covering hood. The hinge pins are integral with hinge pieces, which are welded into recesses at the two ends of the covering hood.

Abstract: In the spraying of an aqueous liquor comprising at least one of 1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan-3-ol and 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-ol, the improvement which comprises including in the liquor di-styryl-phenyl-tri-glycol ether, whereby crystallization of II and III is reduced.

Abstract: The pans of a scraper-chain conveyor have a plough guide at one side. The pans are connected together at said one side with the aid of coupling pieces engaged in pockets in the side walls of the pans. Each coupling piece is pivotably fitted to a plate-like securing element which serves as a handle to enable the coupling piece to be inserted into or removed from the pockets. The securing element can be swung down into further pockets formed in the plough guide to lock the coupling piece in place.

Abstract: A waterproof, polyolefin coated paper support for photographic coatings is disclosed, wherein the paper base contains an alkylketene dimer as a hydrophobizing sizing agent. The alkylketene dimer consists to the greater part of behenyl ketene and contains no more than 40% residues originating from alkylketenes having chains shorter than C.sub.20 -alkyl.