Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: An injection device for injection of a medicament from a medicament cartridge 40 is disclosed. The injection device comprises a main housing 4, a piston 50 and an end stop switch 52 in which access to the main body 4 for replacement of the medicament cartridge 40 may only be obtained when the piston 50 trips the end stop switch.

Abstract: A dental syringe system having a syringe body containing a needle assembly wherein the syringe body serves as a protective shield after medication is injected. A reusable plunger assembly pushes a slidable seal of a carpule and the needle out for medication delivery and then pulls the needle back within the syringe body after the medication is delivered. The needle assembly, syringe body, carpule carrier and carpule are disposable and the plunger is reusable.

Abstract: A novel method for the preparation of a pre-filled plastic syringe, and preferably the preparation of a plastic syringe pre-filled with a diagnostic contrast agent wherein said syringe comprises as components a barrel, a tip seal capable of sealing the nozzle of the barrel and a piston capable of sliding in the barrel and sealing the open end of the barrel opposite the nozzle, comprising the steps of: (a) providing at least one component of said syringe which is molded under conditions which are substantially free of pyrogens and viable and non-viable articulates; and (b) filling and assembling said syringe.

Abstract: A syringe holder has a barrel (1) with a sleeve (2) screwed over its forward end. A syringe is entered into the rear end of the barrel (1), needle (20) first, with the sleeve (2) at its rearmost position. A coned needle cap (23) snaps through an aperture (13) at the forward end of the sleeve as a flange (18) at the rear of the syringe tube (17) abuts the rear end of the barrel (1). Screwing the sleeve (2) forwards eases the cap (23) off the needle (20), and screwing it back again leaves the assembly ready to use. The barrel (1) has finger grips (10) to facilitate thumb operation of the syringe plunger.

Abstract: A device for measuring a volume of liquid drug. The device includes a first chamber containing liquid drug, a measurement chamber in liquid communication with the first chamber, and a measurement assembly.

Abstract: The present invention refers to an injection device comprising an outer syringe, which is arranged in connection with an ampoule for medical agent. The ampoule is axially displaceable inside the outer syringe, whereby an indication device is arranged in connection with the ampoule, which is established to be uncovered at the mutual displacement, whereby a dosage is adjustable and readable. Further, the present invention refers to a method for adjustment of the dosage in connection with an outer syringe, which is arranged in connection with an ampoule for medical agent, displacing the ampoule inside the outer syringe for uncovering an indication device in connection with the ampoule at the mutual displacement, whereby a dosage is adjusted and read.

Abstract: A device is provided for injecting fluid from a pre-filled cartridge. The device includes a needle and a hollow barrel that holds a pre-filled cartridge. A needle retainer releasably retains the needle in an extended position so the needle can be inserted into a patient. A plunger in the rear of the barrel cooperates with the cartridge to expel fluid from the cartridge during an injection. After an injection, the needle is automatically retracted into the barrel when pressure is released from the plunger. A locking mechanism locks the contaminated needle and cartridge in the barrel after needle retraction. After use, the device may be safely disposed of in a sharps container.

Abstract: An injection device is disposable, and is designed to have a reusable firing mechanism fitted to its rear end. A syringe carrier within the barrel of the device is initially locked in a position with the needle of the syringe retracted by a locking element inserted laterally through the barrel. This element also holds an axially movable connector to which the firing mechanism connects. The device is made operable by removal of the locking element, and after use a return spring ensures that neither the syringe carrier nor the connector assume positions where the locking element can be reinserted. An adaptor may be provided to facilitate preparing a syringe with a two-component dose, and for disposal after use the adaptor with an empty vial still attached can be fitted to the rear end of the injection device in place of the firing mechanism.

Abstract: The present invention provides, in a preferred embodiment, a retractable needle (26) device for use with a syringe. The syringe may be manually driven or electronically driven. In the retracted position, the needle is enclosed within a safety shield and may be extended from the safety shield (60) upon actuation of the plunger (38) normally used to dispense the biocompatible material from the needle. In this instance, initial pressure on the plunger serves to extract the needle and after the needle is extracted, the biocompatible material is dispensed from a carpule in communication with the needle. When it is desired to retract the needle, the direction of the plunger travel is reversed thereby effectively retracting the needle back in to the safety shield.

Abstract: This invention relates to a drug cartridge assembly for use with a reusable body assembly of a medication delivery pen. The drug cartridge is disposable and is in the form of a single integral unit having a generally tubular barrel. Medication is pre-filled into the drug cartridge and is retained therein by an elastomeric stopper or plunger. The plunger is in sliding fluid-tight engagement with a tubular wall of the barrel. A proximal end of the tubular barrel is configured for interconnecting the drug cartridge with a pen body assembly and a distal end of the tubular barrel is configured to securely but releasably engage a needle cannula assembly.

Abstract: A syringe or cartridge having a hollow barrel with an open end and a second end suitable for attaching a needle assembly. A master plunger assembly that includes a master plunger and a plunger member is mounted in the barrel for longitudinal movement therein. A slave plunger is mounted in the barrel for longitudinal movement therein, and is located between the master plunger assembly and the second barrel end so as to define two chambers. The first chamber a liquid chamber and is between the slave plunger and the second barrel end, and the second chamber is a pneumatic chamber and is between the slave plunger and the master plunger assembly. The liquid-containing chamber is suitable for containing a liquid to be dispensed from the syringe, and the pneumatic chamber contains a gas such as air.

Abstract: A multiple-dose syringe including a barrel with a closed end and an open end, the closed end having an injection port that may be adapted to receive a needle, or that may be adapted to engage a commercially available needle-less system for fluidly connecting a syringe to an IV or a medicine vial. A plunger is slidably disposed through the open end of the barrel. A container is connected to an end of the plunger to move with the plunger. The container has a deformable shell with an opening at a forward end thereof and a predetermined quantity of fluid sealed therein by a closure member disposed over the opening to selectively seal the opening. The closure member includes a valve that opens in response to a fluid pressure differential across the valve.

Abstract: A disposable unit-dose jet injection syringe having a cylindrically shaped syringe body. The syringe body has a rear open end and a forward closed end. The rear open end has an enlarged diameter forming a flange that retains the syringe to the driving system during the injection cycle. The closed end has an small area coined by a stamping process. A jet orifice is punched through the small area of the closed end. A cavity formed in syringe body is configured to hold a unit dose of liquid, drug, or biological. A piston is slidably engaged within the body to inject the unit dose. A driving system activates the piston to inject the unit dose out of the jet orifice. A method of manufacturing a jet injection syringe is also provided. A method of injecting a medicine is also provided.

Abstract: The present invention provides a novel apparatus for delivering a liquid or gel-like surgical material to a target site within a body cavity. The apparatus is characterized in part by an elongated structural member adapted for engagement with a conventional syringe and cannula assembly. In preferred embodiments of the present invention, devices of the invention further comprise a highly flexible applicator tip which permits application of the surgical material at variable delivery angles and even against gravity. Methods also are disclosed for applying the surgical material to the target site using. devices of the present invention.

Abstract: A person having diabetes will often be required to take both slow acting and fast acting forms of insulin. It is important to be able to distinguish readily between medicament cartridges containing different medicaments. The present invention enables a user to distinguish readily between medicament cartridges containing different medicaments. A medicament cartridge and adaptor top assembly is provided, the medicament cartridge comprising a cylinder having a bottleneck provided with a flange at a first end, a fluid impermeable membrane covering the first end, a cap beaded under the flange to retain the fluid impermeable membrane in place, and a piston displaceably located within a second end of the cylinder, and the adaptor top comprising a sleeve having a body portion and a tapered portion, the tapered portion being provided with a smaller diameter end, the smaller diameter end being located beneath the cap.

Abstract: A method and a needleless injection system for administering a medication. In order to simplify as far as possible the handling necessary for loading the injector with medication and thereby eliminate risks caused by a complex handling the method and system according to the invention provide loading of medication into a needleless injector device by means of a syringe prefilled with a medication, this loading step preferably including connecting the syringe to the injector device by means of a suitable coupling member or adapter and operating the syringe for transferring medication prefilled therein into the injector device. After this transfer the syringe and/or the coupling member or adapter are detached from the injector device, which is then ready to be operated for ejecting the loaded dosage of said medication from the injector device and thereby pass the selected dosage through the skin of an injection receiver.

Abstract: A combination of a storage container for an injectable product and a needleless injection device for injecting the product, wherein an adapter is used to establish a fluid connection between the storage container and the injection device, wherein the storage container is connected to a dosing means for dispensing the injectable product to the injection device in doses, and the dosing means includes an actuator arranged in the storage container or reaching into the storage container.

Abstract: Many of those having diabetes take a combination of slow and fast acting types of insulin. It is important that different forms of medicament do not become confused and that the patient does not receive an incorrect medicament. In order to meet the appropriate standard, certain dimensional restrictions are placed upon the cartridge. A medicament cartridge that meets the requirements of this standard and permits more ready discrimination between medicament cartridges having different contents is provided. The medicament cartridge of the present invention is provided with an electrical element having specified electrical properties located on an external face of a displaceable plunger.

Abstract: A medication delivery pen includes a housing having opposing proximal and distal ends. An actuator is disposed in the proximal end of the housing for setting and administering a dosage of medication. The pen also includes a medication-containing cartridge assembly having a cartridge with a pierceably sealed distal end, an open proximal end removably attachable to the distal end of the housing, and a piston in sliding fluid tight engagement within the cartridge. A drive mechanism is coupled between the actuator and the cartridge to exert an axial force on the piston to inject the set dosage of medication. The actuator triggers the drive mechanism to administer the injection of medication held in the cartridge. A processor is coupled to the actuator to determine a value equal to the dosage set by the actuator. A memory device is coupled to the processor to store at least the dosage value determined by the processor.

Abstract: The present invention relates to a medication delivery device comprising a cartridge assembly, a dosing assembly and optionally a needle assembly. The cartridge assembly comprises a cartridge having a stopper adapted to receive a plunger. Furthermore, the cartridge assembly has one end sealed with a pierce able sealing, said end comprising coupling device for engaging a needle assembly, and another end comprising coupling device for engaging the dosing assembly. The dosing assembly comprises a plunger and has coupling device for engaging the cartridge assembly. The cartridge assembly and the dosing assembly are coupled together for delivering selected doses of medication. The device further comprises mechanism for securing that the plunger abuts on the stopper during use of the device, in particular when the dosing assembly is releasable coupled to the cartridge assembly.

Abstract: Many of those having diabetes take a combination of slow and fast acting types of insulin. It is important that the different forms of medicament do not become confused and that the patient does not receive the incorrect medicament. In combination a medicament delivery apparatus and a medicament cartridge are provided, the medicament delivery apparatus including at least one switch and the medicament cartridge comprising a cartridge housing within which a medicament is provided, a displaceable piston located internally at one end of the housing and a raised ring of material about an external periphery of the medicament cartridge, the ring of material being of sufficient dimensions, in use, to trip the at least one switch of the medicament delivery apparatus.

Abstract: A cartridge type dental injection device capable of easily and quickly mounting or removing a cartridge loaded barrel in or from a socket therein and capable of altering orientations of a viewing window in the barrel and of a cut surface of a needle as desired.

Abstract: A glass cartridge which can be utilized both in an insulin pump system and in an insulin injection system. The glass cartridge contains U200 insulin. In order to obtain a suitable accuracy of the doses delivered by the system, the inside diameter of the cartridge must be in the range 7.45 to 9.32 mm.

Abstract: By a cylinder ampoule (1), comprising a tubular vessel with a membrane (4) sealingly closing one end and a piston (9) closing the other end, liquid stored between said piston (9) and said membrane (4) can be pressed out through an injection needle (7) piercing the membrane (4) when the piston (9) is pressed into the ampoule (1). The tube is made from a plastically deformable material. A pressure foot (10) on which a piston rod (13) is acting abuts the piston (9), carries a spring plate (11) made from a harder material than is the ampoule (1), is mainly perpendicular to the ampoule (1) axis, and has at least one diameter which is larger than the inner diameter of the ampoule (1) so that edges of the plate (11) abutting the inner wall of the ampoule (1) are deflected away from the piston (9) to form an acute angle with said wall.

Abstract: The present invention relates to a medication delivery device comprising a cartridge assembly, a dosing assembly and optionally a needle assembly. The cartridge assembly comprises a cartridge having a stopper adapted to receive a plunger means. Furthermore, the cartridge assembly has one end sealed with a pierceable sealing, said end comprising coupling means for engaging a needle assembly, and another end comprising coupling means for engaging the dosing assembly. At least one of the coupling means of the cartridge assembly is unitarily moulded with the cartridge. The dosing assembly comprises a plunger means and has coupling means for engaging the cartridge assembly. The cartridge assembly and the dosing assembly are coupled together for delivering selected doses of medication. The cartridge is preferably moulded from a plastic material, such as a transparent material, and may be housed in a cartridge housing for protection of the cartridge.

Abstract: A system having an injection cartridge and plunger tip which are adapted to be used on commercially available intraocular lens injection systems. The injection cartridge is shorter and smaller in diameter than typical intraocular lens injection cartridge. The plunger tip has an extended, small diameter section sized to slide easily within a round bore in the cartridge. A stop prevents the plunger tip from being expelled from the cartridge. The entire system, including drug delivery device, may be packaged as a single, terminally sterilized unit, does not require manipulation of the drug delivery device and may be used with a wide variety of drug delivery formulations.

Abstract: A blood collector system utilizes a standard disposable needle assembly and standard blood collecting and receiving tubes of the type sealed by a pierceable septum. The system has a hollow cylinder, including an internally apertured sleeve into which the needle assembly is mounted and into which the sealed blood collecting tubes are inserted to be pierced by a needle of the needle assembly. A protective sheath with two clips is concentrically mounted to the barrel cylinder with slot on both sides of the barrel so that the hollow cylinder can move down to cover the patent contacted needle. On both side of the barrel, there are one upper slot and one lower slot, a slot channel between the upper slot and lower slot. The clip is shaped so that it can be snap in the upper and lower slot and can be only slide down from the upper slot to lower slot, but not backwards.

Abstract: A needle assembly for use with an injection device including a pair of housing members slidably coupled with one another. A need is structurally attached to one of the housing members such that it is positioned within the two housing members. A first membrane is disposed on an opening of one housing member and a second membrane is disposed on an opening of the other housing member such that the needle is concealed from the view and access of a user thereof. The needle assembly may be contracted by sliding one housing member relative to the other causing the needle to penetrate one of the membranes and administer and injection into or below the skin of the user. Additionally, one or more locking mechanisms may be incorporated to prevent inadvertent needle sticks.

Abstract: A disposable aspirating syringe for dental medicine having the ability to accept single use or disposable drug cartridges. The syringe offers a retractable needle and a break-away plunger to facilitate disposal and increase safety.

Abstract: A microapplicator for dispensing and applying an adhesive or sealant material comprises a handle portion, an applicator tip connected to the handle portion, and a microreservoir at the applicator tip arranged to hold a small amount, about 20 microliters or less, of an adhesive/sealant material until dispensing. In embodiments, the applicator tip has a width of about 1 mm. The microapplicator may include a second reservoir, containing the adhesive/sealant material, that is arranged to supply the adhesive/sealant material to the microreservoir at the applicator tip. The second reservoir may comprise a frangible ampoule disposed in the handle portion, a container, such as a syringe, connected to the handle portion, or the handle portion itself. The applicator tip may comprise one of a polymer loop, a spatula, a rolling ball, a grate, a porous material, such as a swab, a foam pad or a mesh, and a brush.

Abstract: A cartridge type dental injection device capable of easily and quickly mounting or removing a cartridge loaded barrel in or from a socket therein and capable of altering orientations of a viewing window in the barrel and of a cut surface of a needle as desired.

Abstract: A heated vaccine pack for heating and keeping heated medicine for vaccinating livestock. The vaccine pack comprises a generally cylindrical container with an inner wall, an exterior wall, and an opening in the bottom of the container. A self contained electrical heating element is located between the wall exterior and the wall interior. The amount of heat to be applied or the operating temperature of the container may be controlled by using an optional temperature regulator. A fastener is affixed to the exterior of the container near the container's top end. The container top has a closure to seal the vaccine pack once the medicine has been placed inside.

Abstract: A method and apparatus are provided for injecting medicine from a pre-filled container into a patient through an injection needle. After use the needle is automatically shielded so that the contaminated needle is protected to prevent inadvertent contact with the needle. The device operates by pumping medicine out of the vial into a transfer chamber. The medicine is the expelled from the transfer chamber into the patient during an injection stroke. At the end of the injection stroke, the needle is released for retraction, and the spring then retracts the needle to shield the needle. Preferably, the device includes an injector assembly and a vial holder assembly. The injector assembly has a needle retainer for releasably retaining te needle in a projecting position against the bias of a spring. The vial holder assembly is attachable with the injector assembly and is operable to transfer the medicine out of the vial and into the transfer chamber to prepare the device for an injection.

Abstract: A system and method is provided including a fluid communications network that sends priming and waste fluid to a waste bag, obviating the presence of open fluid containers in an operating room or catheter lab. The fluid communications network is constructed and arranged to allow nearly automated priming and bubble removal, thereby reducing the possibility of operator caused errors in set-up and reducing the time required for set-up. The fluid communications network is useable for attachment to a balloon catheter for inflation thereof. In order to provide greater control and automation of the inflation of the balloon catheter, a conversion kit is provided that can be used to convert an existing automatic injector into an injector useable for automatically controlling the small amount of injection fluid typically associated with balloon catheters.

Abstract: A seal adapted to be fitted over the open end of the barrel of a hypodermic syringe has a cap of a non-latex elastomer having a central aperture which is sufficiently small as ordinarily to retain liquid therebehind but which can be deformably expanded to allow passage of the rearward end of a needle hub for engagement with the barrel.

Abstract: A medication delivery apparatus including a housing, a container of medication mounted to the housing, an outlet such as an injection needle, and a drive assembly adapted to force medication from the container and through the outlet upon movement of an actuator. The housing periphery includes a projecting abutment for digit engagement which is ergonomically designed for abutting contact by a first digit of a hand of a user when the housing is grasped within the user's hand such that a second digit of the hand of the user may operate the actuator. When the actuator is moved axially, this abutting contact of the first digit with the abutment permits application of an axial force by the first digit on the abutment in a direction generally opposite to an axial force applied to move the actuator.

Abstract: An injection device that is used with a syringe, wherein the injection needle of the syringe is initially introduced into the skin and the injection fluid is injected afterwards. The injection device is essentially driven and controlled by a control sleeve (6) which can be displaced and/or rotated in relation to the housing (7) and which can be moved between a closing and functional position (P1) and an open and safety position (P2). In the closing and functional position, the control sleeve prevents access to the syringe and activates a release device for the injection process. In the open and safety position, a syringe (1) can be removed or inserted.

Abstract: A needle-less injector suitable for injecting fluid through a skin surface of a patient includes a housing, a driver, an intruding gas chamber activating mechanism and a trigger. The housing containing the fluid and a sealed gas storage chamber containing a gas. The driver forces the fluid out of the housing at a sufficient speed to pierce the skin surface of the patient. The intruding gas chamber activating mechanism is mounted in the housing to intrude through the sealed gas chamber to release gas seal into the housing. The trigger is operatively coupled to the intruding gas chamber activating mechanism to release the gas from the gas chamber into the housing to activate the driver to force the fluid out of the housing. The trigger is activated by moving the trigger towards and orifice in the housing and/or upon application of a predetermined amount of pressure to the trigger that is opposed by a predetermined amount of resistance from the skin surface of the patient.

Abstract: The present invention relates to a safety vacuum syringe for blood sampling conformed to ergonomics, mainly comprises: a hollow barrel, the barrel has a reduced inlet disposed on the top end thereof and a guiding slit disposed at the flank side thereof. A reduced lining tube is installed in the barrel, an eccentric reduced portion is eccentrically disposed on the top end of the reduced lining tube and has an opening at the lower end thereof, the eccentric reduced portion is wedged and fixed in the reduced lining tube and projects out of the reduced inlet. Besides, a needle head is fixedly covered on the eccentric reduced portion, a through guiding hole is disposed at the center of the eccentric reduced portion to position a type needle therein, a lower needle tip of the needle is positioned at the central axis in the reduced lining tube, a press plate is connected to said reduced lining tube at the outer flank side thereof and is positioned in the guiding slit.

Abstract: A-syringe for storing a freeze-dried agent therein under reduced pressure as well as a method for manufacturing the syringe. A specified amount of a chemical is injected into a cartridge with the one end of the cartridge down. The gasket is plugged halfway on the other end side of the cartridge, so that the cartridge is made communicating between inside and outside by the recessed groove, in which state the chemical is freeze-dried. The sealing cap is overlaid on an upper end face of the gasket and the sealing cap is pushed in the reduced-pressure atmosphere so that the other end side of the cartridge is sealed by the gasket and the sealing cap. The sealing cap is engaged with an end face of the cartridge on the other end side, thereby being prevented from moving into the cartridge.

Abstract: A multiple-dose syringe including a barrel with a closed end and an open end, the closed end having an injection port adapted to receive a needle. A plunger is slidably disposed through the open end of the barrel. A container is connected to an end of the plunger to move with the plunger. The container has a deformable shell with an opening at a forward end thereof and a predetermined quantity of fluid sealed therein by a closure member disposed over the opening. The container is slidably disposed in the barrel and includes a seal proximal to the forward end to form a first cavity in the barrel with a volume that is adjustable by moving the container in the barrel with the plunger so that fluid can be selectively drawn into and expelled from the first cavity. After at least a substantial portion of the fluid is expelled from the first cavity, the shell is configured to be collapsed by further pressure applied by the plunger to expel the predetermined quantity of fluid contained therein.

Abstract: An electrically-driven dental injector used in orally injecting such an injection liquid as an anesthetic in dental treatment. Electrically-driven dental injectors includes one having a mechanism for disengaging a pinion (82) from a rack (48) in order to retract a plunger rod (44) upon completion of injection; however, it has heretofore been necessary to manually operate the operating part from outside each time. The inventive electrically-driven dental injector is so arranged that the plunger rod can be manually pushed back directly oupon completion of injection without reqiring manual operation, and, to this end, the injector comprises a latch mechanism (84) for engaging/disengaging the ring gear (70) of a planetary reduction gear (50) with/from a casing (52), and an operating rod (94) extending through a support member (20) and functionally cooperating with the latch mechanism (84).

Abstract: A dental syringe (10) has a needle (11) affixed to a carpule holder (12), which carpule holder (12) is affixed to a power drive unit (13). A harpoon (20) is provided to affix the drive unit to the carpule plunger (32). The harpoon (20) is made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon 20 has a unique barb geometry and hardened, knife-like, edges (21). The syringe (10) may operate to divide the delivery of anesthesia into two phases. According to the method, during the first about 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type selected.

Abstract: The invention relates to an injection device for injecting a selectable dose of a liquid substance from an ampoule, located in an ampoule holder, comprising a piston and a sleeve-shaped mechanism holder, mechanically coupled thereto, in the interior of which a longitudinally shiftable shaft is provided which acts on the ampoule.

Abstract: A device for sealing a syringe in which a cartridge is inserted, the cartridge being closed at its top end by a flexible membrane and being connected to an injection needle of a needle-carrier part presenting a crown between the needle and the top surface of the cartridge so as to bear against the membrane to press the membrane inwardly just inside the edge of the orifice in the top surface of the cartridge and sealing the membrane to the top surface along the edge.

Abstract: Materials delivery devices, e.g. for drugs etc. (FIGS. 1-7) or body fluids (FIGS. 8-12), have administration means of piston-and-cylinder (100; 300) or peristaltic rollers and tube (546, 565; 646, 665; 746, 765; 846, 865; 946, 965) type, and intermittently incremental drive transmission means of cooperating toothed rack (143) or wheel (345, 445; 545; 645; 745; 845; 945) and deflectable biassed pawl (153, 156; 343, 356; 453, 456; 553, 556; 653, 656; 753, 756; 853, 856; 953, 956) type driven by pulsed reciprocating solenoid action (110; 310; 410; 510). Portable patient-wearable drug delivery devices (10; 30; 40; 50) can use pre-loaded cartridges (120; 320; 420; 520) and have solenoid drive (130) for needle-entry and battery-powered electronic control, etc. Intravenous infusion pumps (60; 70; 80; 90) can operate relative to body fluid reservoirs or for body fluid transfers.

Abstract: This design relates to a disposable syringe assembly with possibly small-sized finger grip, while any part of the syringe is applicable for injection and medicaments are pre-filled for quick use.