Abstract: An infusion pump includes a plurality of projections configured so that they enter the subcutaneous region of the patients skin and provides a painless means of creating a breach in the stratum corneum which is sealed against leakage by the skin surrounding each projection and provides a flow path for either a basal and bolus injection of medication. The pump includes a drug reservoir containing a drug. The pump includes a microactuator and includes a housing having a foundation or lid which opens and closes so that the medication container can be inserted and supported in a delivery mode position. A micro actuator is used to advance either a roller or a piston in communication with the medication container. Attached to the micro-actuator is a device that is mounted for movement along the access of the medication container. The device indexes along the medication container that is used to dispense the medication.

Abstract: The present invention mechanically propelled, liquid metered dispenser includes a main housing with liquid storage and a liquid advancing component for either allowing liquid to flow out or assisting in the flow of liquid out of the main housing by exerting pressure, into a metered dosage dispensing chamber in response to a loading movement of a cocking mechanism. The chamber has an inlet connected to the main housing with a one-way valve to only permit flow of liquid into the chamber. The chamber also has an outlet orifice for dispensing liquid therefrom in a metered amount. The chamber has a reciprocal plunger and has a load and release component connected to it, which includes a cocking mechanism, a locking mechanism, and a spring. The cocking mechanism is functionally connected to the plunger so as to move in harmony therewith, or, more preferably, to move a relatively short distance relative to the distance traveled by the cocking mechanism.

Abstract: An external infusion device that infuses a fluid into an individual's body includes a housing, a reservoir, a drive system, a power supply, electrical elements, and a tab. The reservoir contains the fluid, and the drive system forces the fluid from the reservoir. The electrical elements control the power to the drive system to regulate the rate that fluid is forced from the reservoir. The tab mates with the housing, and contains at least one electrical element. The tab is removable, and may be replaced with a different tab. The different tab may change the rate fluid is forced from the reservoir. A tab may be removed from one external infusion device and installed in a different external infusion device. The tab may be limited to use in a predetermined number of external infusion devices and may include a power supply.

Abstract: An animal fluid injector, replaceable syringe and method of replacement of the syringe in the injector are provided in which the syringe is loadable and unloadable into and from the injector through the open front end of a pressure jacket of the injector, thereby permitting replacement without retraction of the syringe plunger drive or disconnection of the injection tubing. The syringe is provided with a pressure restraining front end, such as an integral or removable cap with structure such as threads that lock the syringe to the front end of the jacket by mating with threads on the jacket. A mechanism in the injector, which includes, for example, a key or cam ring operated by a lever with one hand of an operator, interacts with structure such asymmetrically spaced notches on the back end of the syringe to, for example, rotate the syringe and simultaneously translate or rotate a coupling on the syringe plunger into and out of engagement with the plunger drive in the injector.

Abstract: An auxiliary appliance for syringe fixation according to the present invention comprises a syringe adaptor for fixing a flange part of a syringe to an injection head, and a piston adaptor for connecting a piston to a plunger. Thus, it is possible to attach a syringe, having a different shape from a syringe which can be directly mounted on the injection head, to the injection head.

Abstract: An adapter includes a syringe carrier adapted to seat at least a portion of the syringe. The syringe carrier includes at least one rearward facing abutment member to abut at least one forward facing surface on a syringe. The syringe carrier includes an opening therein to allow a drive member of an injector to communicate forward force to the plunger through abutment without connective engagement between the drive member and the plunger. The adapter further includes a releasable mounting mechanism positioned to the rear of the syringe carrier to mount the adapter in a desired position relative to the front wall of the injector. An adapter includes a first section and a second section that are rotatable relative to each other about a hinge axis generally perpendicular to a longitudinal axis of the adapter.

Abstract: A device and method for providing a suspended agent such as a contrast agent without mechanical resuspension. A volume of agent is divided into sub-volumes in a network of tubes, cells, sponges, grooves, etc. A propellant fluid flows through the network to release the suspended agent. The network may be internal to a container for the propellant fluid. Alternatively, the network may be adjacent an exit port of a container for the propellant fluid, or may be in-line between a propellant fluid container and a patient. The invention reduces sedimentation of agents into one or a few aggregates and eliminates a mechanical mixing step. The invention thus provides a uniformly suspended agent, improving patient health and safety and increasing cost and time savings.

Abstract: A fluid displacement pump includes a rigid hollow body having a first open end, a flexible partition disposed within the hollow body adjacent the first open end to create a variable volume fluid chamber between the partition and the hollow body, and an actuator acting upon the flexible partition. A movable piston including a shaft connected to the actuator and a head connected to the partition may be disposed within the hollow body. The fluid displacement pump can be incorporated into a number of designs to perform different functions, including a nursing pump, cutting mechanism, and rotational movement generator.

Abstract: A fluid flow regulator of a type having a variable outlet defined by a spacing between an outlet aperture and a flexible diaphragm, and in which the position of the flexible diaphragm varies as a function of a pressure differential between a sensing chamber on a first side of the diaphragm and an outlet chamber on a second side of the diaphragm. The regulator includes an adjustable flow impedance configuration in the flow path from the sensing chamber to the outlet chamber has a two elements providing opposing cylindrical surfaces in sliding contact. One of the cylindrical surfaces has a groove configured to define a flow-attenuating passageway having a net flow vector substantially parallel to the axis of the cylindrical surfaces. Axial relative movement between the elements causes a variation in an extent of overlap between the cylindrical surfaces, thereby varying an operative length of the flow-attenuating passageway.

Abstract: A preparation delivery device comprising a) a container for the preparation having or being prepared for the arrangement of an opening, b) a mechanism operable to deliver at least part of the preparation in the container through the opening, c) attachment means for connection of the container to the mechanism and d) a sensor system arranged to detect at least one predetermined property of the container or its content. The device comprises a radiation transmitter arranged to irradiate the container position or a part thereof, a radiation receiver arranged to receive at least an area part of the radiation from the transmitter after the radiation having been affected by the container position and the receiver being designed to give an output response representative for the total radiation received from said area part.

Abstract: The present invention provides an injection system and a pump system for use therein for pressurizing a liquid medium for injection into a patient. In general, the pump system comprises a pressurizing unit having at least one chamber. Each chamber has disposed therein a pressurizing mechanism to pressurize liquid medium within the chamber. Preferably, the pressurizing mechanism positively displaces the liquid medium through generally linear motion of the pressurizing mechanism within the chamber. Through reciprocating linear motion of the pressurizing mechanism (for example, a piston), the liquid medium is alternatively drawn into the chamber from a source of liquid medium (for example, a container) and forced out of the chamber under a desired pressure. Each chamber comprises an inlet port and an outlet port.

Abstract: A metering device for pressurized fluids has a rotor containing an oscillating free piston operating in a bore at right angles to the rotor axis. The piston is driven by the fluid to be metered. The rotor is retained within a stator having inlet and outlet ports. When the rotor is rotated, a first end of the bore becomes in fluid connection with the inlet port and the piston is operated upon by the pressurized fluid and moves within the bore in a first direction towards the outlet port. As the rotor is turned further, the second end of the bore becomes in fluid connection with the inlet port whilst the first end is made in fluid connection with the outlet port, and the piston reverses to move in a second direction, i.e. towards the outlet port to discharge the fluid which had previously moved the piston in a first direction.

Abstract: The present invention concerns a pump provided with a control module and an attachable fluid reservoir cassette. The control module includes a pumping mechanism for pumping fluid from the fluid reservoir to the patient. The cassette is provided with appropriate indicia to identify differences between a plurality of cassettes. The control module further includes cassette indicia identification structure for identifying indicia on the cassette. One type of cassette identification system includes a projection extending from the cassette and structure associated with the control module which engages the projection. Another type of cassette identification system includes a light reflecting system which utilizes light from the control module and reflected off the cassette. Still other types of cassette identification systems utilize other non-contact switches or sensors to sense indicia on the cassette to identify the cassette from a plurality of cassettes.

Abstract: A front-load syringe injector system includes a front-load injector apparatus having mounted on a front face thereof a detachably engageable adapter. A driving head is engaged with a drive mechanism of the injector and the driving head disengageably engages a plunger mounted in an angiographic syringe mounted on the adapter. At least one of the plunger and driving head and syringe elements interacts with the adapter to effect engagement and disengagement of the plunger and driving head and syringe with respect to one another.

Abstract: A self contained pulsatile surgical irrigation device includes a housing, a trigger moveably connected to the housing, a motor within the housing, a pump within the housing, and a mechanical drive train for coupling the motor to the pump. The trigger is mechanically connected to the drive train to enable the stroke of the pump to be varied, thereby varying the output flow from the device.

Abstract: The invention is an apparatus and method for targeted drug delivery into a living patient using magnetic resonance (MR) imaging. The apparatus and method are useful in delivery to all types of living tissue and uses MR Imaging to track the location of drug delivery and estimating the rate of drug delivery. An MR-visible drug delivery device positioned at an target site (e.g., intracranial delivery) delivers a diagnostic or therapeutic drug solution into the tissue (e.g., the brain). The spatial distribution kinetics of the injected or infused drug agent are monitored quantitatively and non-invasively using water proton directional diffusion MR imaging to establish the efficacy of drug delivery at a targeted location.

Abstract: A medical syringe comprises a cylindrical barrel 1 having therein a plunger 4 which can be axially driven by a plunger rod 3. The plunger rod 3 passes through an aperture in the centre of a finger grip 2 having two finger grip projections 2b at opposite sides thereof. A data carrier means in the form of an electrically or magnetically operable device 2c is mounted near the end of one of the two finger grip projections 2b, with preferably a device 2c mounted near the end of each finger grip projection 2b. The device 2c carries data relating to the medicament contained or to be contained within the syringe, and can be read by a suitably adapted syringe pump when the syringe is mounted thereon to be driven by the syringe pump.

Abstract: The plunger systems for use in an injector-actuated syringe of the present invention include a dynamic wedge seal which improves the sealing engagement between the plunger cover and syringe barrel, and flexible capture members extending from the rear surface of the plunger which permit the engagement and disengagement of the plunger from the injector drive means at any plunger position within the syringe. Further, the plunger systems include a contrast saving tip which expells the injection liquid from the syringe tip.

Abstract: A surgical handpiece driver having a pumping chamber. The pumping chamber works by boiling a small volume of a fluid. As the fluid boils, it expands rapidly, thereby propelling a piston down the length of the pumping chamber. The piston may be attached to the operative shaft or rod of a surgical probe and produce reciprocal motion. Alternatively, the piston may be attached to a cam or gear to product rotary motion.

Abstract: A double-breastpump assembly comprising first and second breastpump units. Each breastpump unit has a breast shield within which a breast is received. A vacuum pump unit for creating a periodic reduced air pressure is alternately applied within the breast shield of each breastpump unit.

Abstract: An angiographic syringe and plunger therefor, having utility in a power-driven angiographic syringe injector apparatus comprising an axially extending drive shaft and a frustoconical-shaped driving head attached to the shaft. The plunger is constructed to engage the driving head, with a circumferentially extended array of circumferentially spaced-apart flexible resilient engagement members which compressively bear on the side and rear surfaces of the frustoconical driving head. The flexible resilient engagement members are radially inwardly offset from the edge of the plunger, to avoid contact with inner surfaces of the syringe barrel contamination of the interior volume of the syringe. The syringe is mounted on the injector apparatus by a face plate adapter assembly serving to position the flexible resilient engagement members for coupling to the driving head.

Abstract: The present invention provides an injection system and a pump system for use therein for pressurizing a liquid medium for injection into a patient. In general, the pump system comprises a pressurizing unit having at least one chamber. Each chamber has disposed therein a pressurizing mechanism to pressurize liquid medium within the chamber. Preferably, the pressurizing mechanism positively displaces the liquid medium through generally linear motion of the pressurizing mechanism within the chamber. Through reciprocating linear motion of the pressurizing mechanism (for example, a piston), the liquid medium is alternatively drawn into the chamber from a source of liquid medium (for example, a container) and forced out of the chamber under a desired pressure. Each chamber comprises an inlet port and an outlet port.

Abstract: An implantable dosaging system for medications, active substances, etc. administered in the form of dissolved or suspended fluids having a medication reservoir, a pump for administering the medication, an actuator for the transcutaneous operation of the pump, a self-sealing port, particularly for refilling the medication reservoir and optionally a dosaging line leading from the pump to the administration point of the medication. Preferably there is a housing (2) and a separate medication reservoir (9), in which the pump is located within the housing (2) and the administration of the medication takes place with the aid of a discharge opening provided in the housing (2), the actuator (5) and the self-sealing port (6) are provided on the housing (2), a connecting line (8) is provided between the housing (2) and the medication reservoir (9) and optionally the dosaging line (7) leads from the discharge opening to the administration point of the medication.

Abstract: A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.

Abstract: A liquid metering and injecting device has a reservoir (10), a pump means (11) and a delivery tube (13) in fluid communication. A motor (19) of the pump means (11) is controllably operated so that a plunger (18) is reciprocated within a cylinder (17). A valve means (32) directs the flow of liquid from the reservoir (10) to the pump means (11) as the plunger (18) is retracted and from the pump means (11) to the delivery tube (13) as the plunger is extended without backflow. With this construction, a selected amount of liquid (14) is periodically metered and injected to a patient.

Abstract: The plunger systems for use in an injector-actuated syringe of the present invention include a dynamic wedge seal which improves the sealing engagement between the plunger cover and syringe barrel, and flexible capture members extending from the rear surface of the plunger which permit the engagement and disengagement of the plunger from the injector drive means at any plunger position within the syringe. Further, the plunger systems include a contrast saving tip which expells the injection liquid from the syringe tip.

Abstract: An ambulatory volumetric pump apparatus includes a housing defining a channel therethrough having an inlet for receiving a fluid and an outlet for discharging a fluid, a pump operable to pump fluid through the channel, a motor for operating the pump in response to control signals, and a programmable microprocessor for selectively supplying control signals to the motor to cause the motor to operate. The programmable microprocessor is "programmed" by manually setting rotatable knobs having faces which extend through but are generally flush with the housing exterior surface. The knobs include indicia to provide a visual display of the setting of the knobs and thus of the parameters of operation of the pump. An under-pressure sensor is disposed after the inlet of the channel to detect a suction or vacuum in the channel and to signal the microprocessor if such condition is detected.

Abstract: An improved breast pump assembly allows two breast pumps to be connected to a motor drive unit for simultaneous breast pumping. In a preferred embodiment, the improved breast pump assembly can be adjusted for either single breast pumping or for double breast pumping, depending on the particular woman's needs.

Abstract: A method of administering a drug to a patient comprises the steps of filling a dispenser (20) with a predetermined total volume of a liquid containing the drug and administering a predetermined volume of the liquid in the dispenser to the patient (10) The liquid in the dispenser is then replaced with a diluent (22). The administration of liquid and replacement with diluent (22) are then repeated from time to time so that diminishing doses of the drug are administered to the patient (10). Preferably the diluent (22) is drawn into the dispenser (20) prior to the drug containing liquid being administered. The method is preferably- patient (10) controlled via control push button (48). The invention extends to apparatus which is used to carry out the method.

Abstract: A self contained pulsatile surgical irrigation device that includes a housing, a trigger moveably connected to the housing, a motor within the housing, a pump within the housing, and a mechanical drive train for coupling the motor to the pump. The trigger is mechanically connected to the drive train to enable the stroke of the pump to be varied, thereby varying the output flow from the device.

Abstract: A body having a syringe receptacle for receiving and retaining a syringe having a plunger, a housing containing a drive assembly for moving the plunger of the syringe between a depressed position and an extended position, a grip containing a control assembly for controlling the operation of the drive assembly in programmable modes of operation.

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 fluid delivery device for delivering fluid from a fluid reservoir to a patient. The device includes an inlet channel in communication with a fluid reservoir and a dosing chamber, and an outlet channel disposed in communication with the dosing chamber. A reciprocating dosing actuator is moveable in a reciprocating motion between first and second positions for alternately (i) transporting a dose of fluid conveyed by the inlet channel into the intermediate dosing chamber, and (ii) ejecting the dose from the dosing chamber through the outlet channel to the patient, respectively.

Abstract: An improved breast pump assembly allows two breast pumps to be connected to a motor drive unit for simultaneous breast pumping. In a preferred embodiment, the improved breast pump assembly can be adjusted for either single breast pumping or for double breast pumping, depending on the particular woman's needs.

Abstract: An angiographic injector includes a syringe which is connected to a fluid reservoir through a valve which permits radiographic contrast material to be drawn from the reservoir into the syringe during a fill operation. The valve permits air to be expelled from the syringe through the valve during a purge operation, but blocks flow of contrast material from the syringe back to the fluid reservoir. During an injection, the valve blocks flow of contrast material back to the fluid reservoir while the contrast fluid is being delivered under pressure from the syringe to a patient.

Abstract: Devices and methods are provided for surgical lavage including pumping liquid to a bone or other tissue surface with a reciprocating pump mechanism operated by pressurized gas wherein pressurized exhaust gas is further utilized to accelerate the pulsed liquid. A first valve arrangement is provided to bypass the pumping mechanism to direct pressurized gas directly onto the bone/other tissue surface without the presence of liquid from the device. A second valve arrangement is provided for optionally venting at least a portion of the exhaust gas to the atmosphere instead of directing it to the bone/other tissue surface. An additive line delivers additive to the gas bypass line for delivery of the additive to the bone/other tissue surface with the flowing gas stream.

Abstract: A modular ambulatory patient infusion apparatus including a control module and an infusion fluid or solution-containing interlocking cassette. The control module includes thumbwheel presettable electronic circuitry and display means in the form of windows for viewing the preset numerical values. In accordance with these settings, the circuitry drives a motor-operated reciprocable piston actuator terminating in a finger-like flange engaging portion. The motor shaft drives a worm and worm gear arrangement for reciprocating the piston actuator, with each of the worm and worm gear interoperatively associated with light cells for determining both motor speed and worm gear revolution.

Abstract: A plastic syringe adapted for use with power injector systems comprises a cylindrical barrel for receiving a liquid, a plunger axially reciprocable within the barrel for discharging the liquid therefrom, a discharge extension at the distal end of the barrel terminating in a discharge outlet, at least one radially outwardly extending mounting lug located at or near the outer proximal end of the barrel, the lug having a distal surface having first and second ends defining a constrained portion of the barrel, and the lug being crown shaped such that the center of the distal surface of the lug is distally offset from the ends of the lug. In another embodiment, the syringe comprises a cylindrical collar adapted to fit over and attach to the proximal end of the cylindrical barrel, and the crowned lug is located at or near the outer proximal end of the collar.

Abstract: A pumping apparatus which is particularly useful in catheterization procedures has two pumps supported in a parallel arrangement. The pumps are engaged by an actuating rod connected to a power cylinder which reciprocates longitudinally between the two pumps. The two pumps are held within the housing such that only the plunger element of one pump is capable of movement in response to the actuating member while only the barrel element of the other pump is capable of movement in response to the actuating member. By way of this linkage, during movement of the actuating rod, one pump performs a pumping stroke while the other pump performs a suction stroke.

Abstract: In the device for administering implants, which comprises an active substance container with injection cannula and plunger, the plunger is arranged in a plunger channel. The plunger channel merges with continuity into the lumen of the cannula. A holder device (5) for the implant (2) is arranged at the lumen-side end of the plunger channel (3).

Abstract: The adapters of the present invention are used for releasably attaching syringes of various types having a body, a plunger reciprocally mounted therein, and a flange near the rear end of the syringe body, to a front-loading injector head. In a preferred embodiment, the adapter includes a syringe carrier having a front end, a rear end, and syringe retaining channel located between the carrier front and rear ends for engaging at least a portion of the syringe flange; mounting flanges near the carrier rear end for releasably mounting the carrier in a desired position relative to the front wall of the injector head; a follower reciprocally mounted within the carrier having a front end engagable with the syringe plunger when the syringe is installed in the carrier; and a drive head opening communicating with a pair of drive head slots positioned proximate to the rear end of the follower for releasably mounting the follower in a desired position relative to the drive head of the injector head.

Abstract: An electrically powered jet injector impacts a plunger driver against a plunger to generate a high initial pressure pulse, for piercing the skin. The plunger driver then continues to generate a lower delivery pressure until the injection is completed. A microprocessor within the injector controls the speed and direction of the electric motor which moves the plunger driver. The injector provides a subcutaneous injection especially useful for injecting insulin to treat diabetes.

Abstract: A manually operated pumping apparatus which is particularly useful in catheterization procedures has two pumps supported in a housing in a parallel arrangement. The pumps are engaged by a rack and pinion actuating assembly which provides reciprocating linear movement to the two pumps during operation so that one pump performs a pumping stroke while the other pump simultaneously performs a suction stroke. The actuating assembly is driven by a drive assembly which converts rotation of a handle into linear motion usable by the rack and pinion members to drive the two pumps in their reciprocating pumping movements.

Abstract: A medication infusion pump is provided for use in the programmable delivery of a selected medication to a patient, wherein the pump includes a fluoropolymer valve seat engageable with a nonmetallic valve member. The fluoropolymer valve seat defines a substantially inert and nonadherent surface to prevent accumulation of medication deposits thereon. Such deposits are believed to occur as a result of shear denaturation and/or precipitation in the vicinity of the valve seat, in response to relatively high compression forces applied to the medication as the valve member opens and closes. The fluoropolymer valve seat provides a surface which is particularly nonadherent to protein based medications, such as insulin.

Abstract: An integral disposable manifold and pump cassette, through which fluid is pumped from inlet tubes, forms a single disposable cassette which may be inserted into a single pump housing. The integral disposable manifold and pump cassette includes first and second sheets of flexible plastic material. Sealed inlet channels are formed between the first and second sheets of flexible plastic material, with the sealed inlet channels being connectable to inlet tubes for fluid passage therethrough. The sealed inlet channels can be individually pinched off to prevent fluid passage therethrough. A sealed main channel, which is connected between the inlet channels and an outlet tube is formed between the first and second sheets of flexible plastic material. The sealed main channel includes a pumping chamber which is also formed between the first and second sheets of flexible plastic material.

Abstract: Infusion apparatus is provided for discriminating the specifications of syringes of any manufacturer, setting alarm levels corresponding to contained liquid solutions having various viscosities, and obtaining a net pressure for infusion from the force to a plunger by considering pressure loss dependent on a friction factor between the barrel and the plunger of the syringe. Syringe diameter is detected digitally to determine a capacity signal. The plunger force is detected by a pressure sensor and then A/D converted to a digital pressure signal. Specifications of syringes of manufacturers based on the syringe capacity signal are compared with the signals of the mounted syringe to select one among operation programs corresponding to their syringe specifications. A Dip switch selects a group of the operation programs for manufacturers.

Abstract: A handheld surgical instrument consists of a housing capable of being hand held and including a front end to which a surgical tool is mounted. The tool can be used for electrosurgery and includes a conduit for irrigating or evacuating an interior portion of the body of a patient. The instrument also includes a chamber for temporarily retaining irrigation fluid and from which the fluid can be supplied along the conduit to the body of the patient. Drive means mounted to the housing acts on the chamber to move fluid from the chamber along the conduit to the body of the patient. The instrument also includes a fluid supply for supplying irrigation fluid to the chamber. In operation, the drive means acts to alternately decrease and increase the volume of the chamber to alternately expel fluid from and draw fluid into it.

Abstract: A front-loading syringe which comprises a movable plunger for injecting liquid contrast media, is rotatably mountable on a front wall of an injector housing with an interference fit and in sealed relationship with respect thereto, with or without a pressure jacket, by a first-quick release mechanism. At the same time, the plunger is connected to an injector drive mechanism by a second readily releasable mechanism. During the mounting operation, a sensor reads injection information from an indicator device on the syringe and feeds it to an injector control. An audible-and-tactile indicating mechanism also is activated when the syringe is essentially in the desired mounted position. The syringe may include reinforcing ribs which also function as volumetric gradations, and liquid media presence-or-absence indicating dots which appear circular against a liquid media background and oval-shaped against an air background.

Abstract: A medical solution delivery system comprises a cylindrical container having an opening at one end and a port for a medical solution at the opposite end; a plunger slidably arranged in the container; a plunger-driving device for forcing the plunger to move towards the port of the container to deliver a medical solution therethrough; a capsule for holding the container, the plunger and the plunger-driving device; and a flow control device connected to the port of the container to control a flow rate of the solution delivered therefrom. The solution in the container is delivered through a flow control device connected to the port of the container.

Abstract: A device for the sampling of body fluids using a hollow needle (6), is provided with a storage system (3) with several separate sample containers (4) placed on a movable carrier (9). The containers (4) which are sealed by puncturable membranes (5) so as to be gas-tight, will receive collected fractions of the body fluid at given intervals, a device (7) connected to a control unit (2) being provided, by which the hollow needle (6) is positioned over each sample container (4) in turn and is inserted through the membrane (5) into the sample container. The sampling device 1 is configured as a two-channel cannula (18), one (19) of whose channels is connected via a first connecting tube (25) to the hollow needle (6) used for insertion into the sample containers (4), while its other channel (20) is connected via a second connecting tube (26) to a pump (8'; 21) operated by the control unit (2).