A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area c.sub.1 with an outer radius r.sub.1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain minimum value the radius of curvature.

A blinding cap (1001) for covering a rigid needle shield mounted on a syringe, that comprises first (1010) and second parts (1020) joined by a hinge (1030). The first and second parts are engagable around the rigid needle shield by flexure of the hinge such that a raised lip (1050) of the first part is engaged in a recess (1080) of the second part and a first locking member (1070) and a second locking member (1090) engage one another to lock the first and second parts together. The first and second parts together define a cavity for receiving the rigid needle shield and have a first flange portion (1040a) and a second flange portion (1040b) that are juxtaposed to form an inwardly-projecting flange that is disposed between an end surface of the rigid needle shield and a barrel of the syringe. The first and second parts also have one or more fins (1060, 1061) that are configured to engage the rigid needle shield.

A medical injection device for supporting a medical container comprising a barrel and a needle tip extending from a distal end of the barrel, comprising: safety shield, first ring configured to be coupled to the medical container and configured to be biased in a proximal direction relative to the safety shield from an injection position in which a needle tip extends out of the safety shield to a safety position in which the needle tip is covered by the safety shield, and second ring rotatably movable relative to the first ring between locking position wherein the second ring maintains the first ring in the injection position and an unlocking position wherein the second ring releases the first ring thereby allowing the first ring to be urged into the safety position.

Provided are a syringe assembly and a liquid-medicine administration device configured to suppress a variation in a pressure limit of a seal member. In the syringe assembly, the seal member is pressed and held between a pressing surface of a cap and a sealing surface of a distal nozzle portion of a syringe. The seal member is pressed and held in the axial direction in a pressing space over the whole region of an opposing portion between the pressing surface and the sealing surface, and a gap between the pressing surface and the sealing surface in the pressing space is narrowest on the inner peripheral side.

A lock adapter, a syringe assembly, and a prefilled syringe capable of suppressing variation in position on the tip end side of the lock adapter after being subjected to an autoclave sterilization process. The lock adapter is attached to the periphery of a nozzle portion at the tip end of the prefilled syringe and slidable in an axial direction of the nozzle portion. The lock adapter includes: a cylindrical body portion surrounding the periphery of the nozzle portion; and a claw portion protruding to an inner peripheral side from a base end portion of the cylindrical body portion and configured to determine a tip end position of the lock adapter by being caught in an annular rib extending in a circumferential direction of the nozzle portion, in which the claw portion has a circumferential shape when viewed from the axial direction and is integrally connected in the circumferential direction.

A lock adapter, a syringe assembly, and a prefilled syringe capable of suppressing variation in position on the tip end side of the lock adapter after being subjected to an autoclave sterilization process. The lock adapter is attached to the periphery of a nozzle portion at the tip end of the prefilled syringe and slidable in an axial direction of the nozzle portion. The lock adapter includes: a cylindrical body portion surrounding the periphery of the nozzle portion; and a claw portion protruding to an inner peripheral side from a base end portion of the cylindrical body portion and configured to determine a tip end position of the lock adapter by being caught in an annular rib extending in a circumferential direction of the nozzle portion, in which the claw portion has a circumferential shape when viewed from the axial direction and is integrally connected in the circumferential direction.

The present invention relates to a needle-free injector using pulsed shock waves, the needle-free injector comprising: a power unit generating pulsed power; a pulsed shock wave generating unit which receives the pulsed power and generates pulsed shock waves; an upper housing in which a liquid and the pulsed shock wave generating unit are disposed; a lower housing which is connected to the upper housing, and in which a drug is disposed; a shock wave transmission unit which is provided between the upper housing and the lower housing to separate the upper housing and the lower housing; and an injection unit which is disposed in the lower housing and inject the drug.

A syringe device with preferred and alternate embodiments structured to store, mix (if appropriate), and dispense multiple compounds (fluids, gels, suspensions, powdered solids, etc.) without the need for multiple syringes or the repeated use of a syringe. In a first embodiment, the device stores two separate compounds for use and mixes the compounds before dispensing the combined mixture. In a second embodiment, the device stores two separate fluids for use and dispenses the first fluid followed sequentially by dispensing the second. The device may be used with a variety of dispensing structures such as an applicator or a cannula (syringe needle). The present invention finds specific application, for example, in a syringe device for storing and combining a diluent with a lyophilized drug/vaccine. Overall, the device structures a unique arrangement of chambers and channels for the accurate storage, mixing, and dispensing of multiple compounds (fluids, gels, suspensions, powdered solids, etc.).

A sealing container is designed to enable a user to adjust the timing of discharging the contents. The sealing container includes: a bag-shaped member for accommodating the contents therein, a sealing film for sealing the bag-shaped member, an opening means so configured that at least a part of which is movable toward the sealing film and is capable of opening the sealing film, an operation unit for performing an operation of moving the opening means, and a discharge means configured to be capable of discharging the contents from the bag-shaped member at a timing different from a timing at which the opening means penetrates the sealing film by operating the operation unit. It is possible for the user to perform only the operation of opening the sealing film by operating the operation unit, so that the user is able to arbitrarily adjust the timing at which the content is discharged from the bag-shaped member of the sealing container.

A sealing container is designed to enable a user to adjust the timing of discharging the contents. The sealing container includes: a bag-shaped member for accommodating the contents therein, a sealing film for sealing the bag-shaped member, an opening means so configured that at least a part of which is movable toward the sealing film and is capable of opening the sealing film, an operation unit for performing an operation of moving the opening means, and a discharge means configured to be capable of discharging the contents from the bag-shaped member at a timing different from a timing at which the opening means penetrates the sealing film by operating the operation unit. It is possible for the user to perform only the operation of opening the sealing film by operating the operation unit, so that the user is able to arbitrarily adjust the timing at which the content is discharged from the bag-shaped member of the sealing container.