Abstract: A device for dispensing liquids, in particular drugs, comprises a reservoir (11) provided with a neck (30) of reduced cross-section being engaged by a stopper element (16). The reservoir is completely covered by a cap (25) which has at one end a movable push button (28) which abuts against the bottom portion of the reservoir (10). In order to transfer the device from its storage position to its activated position, the operator must press on the push button (28) in such a way that the stopper element (16) penetrates into the interior of the reservoir beyond the neck of reduced crosssection (30). This device can be used as an injection syringe, a spray dispenser, or an applicator for the skin or eyes.

Abstract: A physiological fluid sampling device connectable to a hypodermic needle has a sampling chamber of selectably variable volume defined by a sealing member in the form of a piston which is manually movable in a housing member due to its attachment to a plunger extending out of the housing member. The chamber is formed by a closed end of the housing, the housing side wall, and the sealing member, and a bore through the housing end wall permits fluid communication with the needle. The sealing member forms a constant hermetic seal around the housing side wall, but contaminant gases may escape from the chamber through exhaust passageways formed in the sealing member. Each of these passageways contains liquid reactive material so that they automatically seal upon contact with a physiological fluid, such as blood, to prevent re-entry of contaminant gases. Crystalline heparin coats the interior surface of the housing member to stop clotting of arterial blood.

Abstract: The drug dispensing set includes a reservoir having a cylinder for receiving a primary infusion solution at the proximal end and a piston which slides within the cylinder in seal-tight relation. The piston includes a one-way valve to permit passage of the primary infusion solution to the distal side of the piston under pump pressure. A Y-site or three-way valve is connected in the tubing downstream of the reservoir to permit infusion of a drug dosage into the distal end of the cylinder while the piston moves towards the proximal end of the cylinder under the pressure of the delivered drug dosage. The drug dosage is subsequently dispensed from the reservoir when the pump is re-started and the primary infusion solution following the drug dosage serves to flush the tubing of the drug dosage.

Abstract: A syringe for withdrawing fluids which consists of novel new one-handed operated syringe. Said one-handed or therapeutic syringe is described as a therapeutic syringe comprising a double compartmented housing, a piston disposed in one of said compartments, a piston rod connected to said piston controlling the movement of said piston in a barrel, vent means associated with said piston compartment, said other non-piston compartment being formed with needle hub for supporting a needle and having an opening in fluid communication with said piston compartment whereby when said piston is moved forward in said barrel in said piston compartment, air will be discharged therefrom while drawing liquid into said other compartment.

Abstract: A percutaneous syringe assembly for use in the introduction of a guidewire into a blood vessel for the purpose of guiding a catheter into place. The syringe has a plunger with a central guide tube for the wire and a needle lumen for introduction of the wire into a blood vessel. A protective flexible container for a guidewire is attachable to the syringe plunger in a closed circuit with selective ends to be aligned with the central guide tube of the plunger to permit a J-end or a straight end of a wire to be introduced into a selected blood vessel.

Abstract: A prefilled ampoule-syringe including an ampoule body having a smaller inner dimension than the body and a stopper means associated with an external capsule for closing the ampoule. The stopper is provided with an internal conduit having at least one transverse branch opening into a longitudinal branch between the interior of the capsule body and a needle-holding tip. The capsule is arranged for actual movement from a position within the neck where it is in a closed position to an open injection position within the ampoule body. When the capsule is in the position in the neck of the ampoule, the contents of the ampoule are in contact only with the walls of the ampoule and the inner surface of the stopper which faces into the neck. When the stopper is moved to injection position, the contents of the ampoule pass through the transverse passage and down the longitudinal passage to the needle holding tip for injection into a patient.

Abstract: A device for injecting a fixing agent for anchoring a fastening element in a drilled hole comprises a sealable container which contains one component of the fixing agent, an injection nozzle, and a plunger which can be pushed into the container. The injection nozzle is arranged on the plunger and the total length of the plunger and the injection nozzle corresponds at least to the depth of the inner space in the container. Around the injection nozzle is provided a sleeve which starts from the base of the plunger. The sleeve is filled with a further component of the fixing agent. The open end face of the sleeve is sealed by a cover having a frangible opening.

Abstract: A vented blood gas syringe is capable of allowing arterial blood to enter into a specimen chamber due to blood pressure or due to the aspirating the blood into the chamber where insufficient blood pressure of the patient exists. The blood gas syringe is fabricated of conventional parts modified for venting. The plunger of a conventional syringe has air passages through the lower rib thereof to allow air to pass into the air space formed by the body of the plunger. The passages are further sized to restrict the flow of blood therethrough. A slice is made in the upper rib and at least one air passage is provided from the air space between the ribs to the slice. The upper portion of the upper rib above the slice becomes a flap which can act as a valve resting on a seat formed by the slice to allow air to pass upward but not downward.

Abstract: A package for materials that are to be mixed just prior to use comprises a squeezable container into which is inserted a barrel containing a plunger. One substance to be mixed is placed within the container. The second substance is placed within a compartment formed within the barrel between a pair of pistons having flexible sealing rings. Telescoping of the plunger rod into the barrel causes the upper piston to advance into the compartment. The advancing upper piston exerts hydraulic pressure causing the lower sealing piston to detach from the barrel allowing internal mixing of the substances into a mixed fluid. By squeezing the container side wall, mixed fluid may be dispensed from a forward end of the plunger rod communicating with the container interior through a series of passageways.

Abstract: A blood sedimentation apparatus has an upright transparent sedimentation tube (11) which can be inserted into a sample container (32) containing blood and which can filled with blood up to a zero mark (13) provided in the upper region by displacing the blood contained in the sample container. A closure (12), which includes an overflow vessel (24) and a hollow spigot (14) which communicates therewith, and which extends from above into the sedimentation tube up to the zero mark (13) can be placed onto the upper end of the sedimentation tube (11). A closure member (15) which closes the opening (16) of the hollow spigot (14) can be introduced axially into the hollow spigot (14).

Abstract: The instrument comprises an outer cylindrical body 3 leading off at one end 3a to a biopsy cannula 5, and a piston 4 slidably engaged within said outer cylindrical body 3 with which it defines a suction chamber 10. The piston carries, at one end, a stylet 6 engaging with play inside said biopsy cannula 5 and is provided with a grip member 15 which slidably engages into a pair of longitudinal guides 13, 14 obtained in the outer cylindrical body 3, a stroke-limiting member 31 being disposed in an adjustable position on said outer cylindrical body 3.

Abstract: A physiological fluid sampling device connectable to a hypodermic needle has a sampling chamber of selectably variable volume defined by a sealing member in the form of a piston which is manually movable in a housing member due to its attachment to a plunger extending out of the housing member. The chamber is formed by a closed end of the housing, the housing side wall, and the sealing member, and a bore through the housing end wall permits fluid communication with the needle. The sealing member forms a constant hermetic seal around the housing side wall, but contaminant gases may escape from the chamber through exhaust passageways formed in the sealing member. Each of these passageways contains liquid reactive material so that they automatically seal upon contact with a physiological fluid, such as blood, to prevent re-entry of contaminant gases. Crystalline heparin coats the interior surface of the housing member to stop clotting of arterial blood.

Abstract: A device for injecting a fixing agent for anchoring a fastening element in a drilled hole comprises a vessel which includes a housing, which contains one component of the fixing agent and can be sealed, an injection nozzle and a plunger. The plunger is movable into the vessel housing. An injection nozzle is arranged on the plunger. The overall length of the plunger and the injection nozzle matches the height of the interior of the vessel housing. Thus, all of the fixing agent can be injected as a result of pressure applied to the base of the vessel housing.

Abstract: A breast pump for manual operation of the type comprising a receptacle that is put against the breast to surround a teat and has a variable enclosed volume in the manner of a cylinder-and-piston-pump which when operated in contact with a breast causes the milk to be drawn into the receptacle due to the suction generated by an enlargement of the enclosed volume.The tubular part of the hollow piston is tapered such that its upper end has a smaller outer diameter than its lower end that carries an annular lip seal; consequently, the outer cylinder which is manipulated, i.e. moved to-and-fro relative to the hollow piston, can be tilted to some extent without concurrent tilting of the piston and the suction bell that is integrally connected therewith; thus, pump-induced motion of or at the sensitive area of teat and areola is minimized for improved user comfort.

Abstract: Blood is transferred from a test tube having a supply of blood covered by a head of foamed blood into a second tube which is provided with a graduated scale and both ends of which are open. An apparatus for performing the transfer includes a cap having a sleeve which is frictionally attached to and surrounds one end portion of the second tube. The cap further includes a bottom wall which is spaced apart from the end face of the one end portion of the second tube, a nipple which extends from the bottom wall in a direction away from the second tube, and an elastic sealing element which surrounds the sleeve and can slide along the internal surface of the test tube toward the supply of blood therein. The nipple defines a portion of a first path wherein the resistance to the flow of blood is much less pronounced than the resistance to the flow of foam along a second path which is defined by the cap in a region adjacent to the bottom wall.