Abstract: A medicine syringe has a syringe barrel, piston and plunger rod. The syringe barrel is provided with a cylindrical main body defining therein a chamber to be filled with a medical solution, and an injection nozzle portion formed at an end portion of the main body and defining therein a hollow bore in communication with the chamber. The chamber and hollow bore have a total capacity of not greater than 0.5 mL. The chamber and hollow bore are formed such that the piston is slidable in a range of from 20 to 100 mm and is allowed to slide liquid-tight into the hollow bore beyond the chamber.

Abstract: A rubber plug for a vial container includes a leg portion press molded independently, and having a base end side portion, and a plate-shape cap portion bonded to the base end side portion press-molded with the leg portion. The leg portion and the plate-shape cap portion have bonding areas formed as concentric concavo-convex areas. The base end side portion of the leg portion including the area bonded with the plate-shape cap portion is formed of a material same as that of the plate-shape cap portion.

Abstract: A plastic-made nozzle cap for a plastic syringe includes a leg section, a cavity top wall portion, and a finger knob for the attachment/detachment of the nozzle cap. The leg section is structured for connection with a female Luer lock fitting formed face-to-face with an outer circumferential wall of a syringe nozzle. The cavity top wall portion is provided with a curved surface having a downwardly-convex, radius of curvature ranging from 0.6 to 12.0 mm for being brought into contact with a tip of the syringe nozzle to maintain sealing performance. The finger knob is arranged on an upper side of the leg section, and extends above the female Luer lock fitting in a state that a syringe barrel and the nozzle cap have been connected together.

Abstract: A plunger kit for a medicine syringe provided with a syringe barrel includes a piston having an internal screw and a plunger rod having an external screw. The internal screw and external screw have a mutually non-complementary, basic groove profile and basic thread profile, respectively. A following flank of each thread of the external screw and a groove flank of a corresponding groove of the internal screw are formed such that, when the piston and plunger rod are slidably fit in the syringe barrel and the piston is then slid in a pull direction, the following flank can come into contact with the groove flank more strongly at a first part and more weakly at a second part to increase thread engagement strength between the external screw and the internal screw without any substantial expansion of the piston by the external screw.

Abstract: A syringe needle cap (10) is filled to the tip of the barrel (21) of a prefilled syringe (20). And the tip of a syringe needle (22) is stuck into a needlepoint receiving section (12A) on the inner layer portion (12) of the syringe needle cap (10). The outer circumference of a needle section (21B) on the tip of the prefilled syringe (20) is closely attached to a joining section (12B) on the inner layer portion (12) of the syringe needle cap (10), thereby securely sealing the inner space within the syringe needle cap (10) which covers the syringe needle (22). The outer layer portion (11) functioning as the cap main body of the syringe needle cap (10) is formed from a transparent resin, and the inner layer portion (12) is formed from a transparent elastomer as the interior material. As a consequence, the entire syringe needle (22) of the prefilled syringe (20), including the tip section, can be seen from the outside.

Abstract: Provided is an easy-to-handle prefilled type nasal drip appliance which can spray medical solution surely into the nostril while holding down the production cost. A syringe barrel has a spray hole and a latching portion of a center stopper on one side, with a conduction portion of medical solution being provided at the latching portion, and has a portion protruding inward of the inner circumferential surface formed on the other end side. A plunger has a portion protruding outward of the outer circumferential surface formed substantially in the axial center wherein both protrusions engage with each other. When the plunger is moved in the spray direction of the syringe barrel to get over the plunger side protrusion and disengaged, the medical solution moves the center stopper in the spray direction to form a medical solution inflow groove between the conduction portion formed at the center stopper latching portion and the center stopper.

Abstract: This invention provides a cartridge cap for preventing air staying in a cylindrical cartridge even if the air is sucked in during a sealing operation of the opening portion of the cylindrical cartridge in which medicinal solution is filled. The air which is sucked in during a sealing operation of the opening portion of the cylindrical cartridge 2 is released to the outside of the cylindrical cartridge 2 through an air relief passage AR which is formed along the inner periphery of the cylindrical wall portion 1B including the gap between the outer periphery of the rip portion 2A of the cylindrical cartridge 2 and the part of the inner periphery of the cylindrical wall portion 1B where no terrace shaped receiving portions 1F, 1F, . . . are formed. It is possible to prevent air from staying in the cylindrical cartridge 2.

Abstract: Disclosed is a plastic cap useful for steadfastly maintaining a sealed state created in a container having a mouth with an opening by sealing the opening with a sealing member. The cap has a cap main body and a cover portion integrated with the main body via at least one bridge portion. The main body has a base portion and a top wall. The bridge portion is formed of a synthetic plastic filled in at least one fusion-bonding hole having a diameter of from 0.3 to 3 mm and arranged extending through at least one, preferably one of the main body or cover portion such that the main body and cover portion are integrally fusion-bonded by the bridge portion and the cover portion can be separated from the main body by breaking the bridge portion with hands. A production method of the plastic cap is also disclosed.

Abstract: Disclosed are a piston for a micro-volume syringe and a plunger. The micro-volume syringe has a syringe barrel with a space defined in it. The piston is slidable on and along a wall of the space. A leading member to be arranged on a side where the piston comes into contact with a solution filled in the space and a trailing member to be arranged on a side where a plunger rod is to be connected, the latter side being opposite to a solution side of the leading member, have been integrated with each other. The trailing member has a higher hardness than the leading member. With the micro-volume syringe in which a drug solution can be filled in a very small quantity, the piston makes it possible to perform smooth drawing and ejection of the drug solution without leakage. Even if the small piston connected to a tip of the plunger rod is operated in a direction that the piston is to be pulled out of the syringe, the plunger rod does not slip off from the piston accidentally.

Abstract: A rubber plug for a vial container containing medicinal chemicals according to the present invention can be smoothly conveyed by a part feeder while preventing each other's adhesion. The top surface of a discoid cap portion 1A has a Shore A hardness of 25-55 and a surface roughness Ra of 2.5-10.5 ?m. Adherence of the top surface of the discoid cap portion 1A is reduced by synergy effect. The rubber plug 1 can be smoothly conveyed by a part feeder in an inverted position which turns the top surface of the discoid cap portion to the conveying surface.

Abstract: The present invention relates to a medical container useful upon transportation of plural syringe barrels. The medical container includes at least a container main body and a holding member arranged inside the container main body. The holding member is provided at least with a plurality of cylindrical holding portions for holding syringe barrels. The container main body has at least a peripheral rim arranged on and along an outer periphery of an opening and a shoulder-shaped portion arranged on an inner wall of the container to arrange the holding member. The shoulder-shaped portion has at least three ribs for supporting the holding member, and has a structure that enables to arrange via the ribs the holding member in a horizontal position relative to a bottom wall of the container main body.

Abstract: To provide a syringe barrel and a syringe capable of allowing an operator to feel the amount of injected medical solution or the inserting distance of a piston by a difference in sliding resistance when an injection operation is performed. A syringe 1 includes a syringe barrel 11 which has an inner surface provided with a structure in which a sliding resistance F is changed step by step upon sliding a piston 32. The syringe barrel 11 includes steps which are formed at one or two or more positions of the inner surface in the axial direction so as to face from the rear end to the front end or from the front end to the rear end, and which include edges formed along the circumferential direction.

Abstract: A pharmaceutical/medical rubber compound contains the following components: (A) a composition obtainable by crosslinking (a) 100 parts by weight of an isobutylene polymer having terminal alkenyl groups with (d) a hydrosilyl-containing compound in the presence of (b) from 5 to 100 parts by weight of a polyolefin and (c) from 5 to 100 parts by weight of polybutene during melt kneading, and (B) an ultra-high molecular weight polyethylene powder. Compared with conventional thermoplastic elastomers, the pharmaceutical/medical rubber compound and its molded article are free from deformations and have sufficient permanent set resistance even under high temperature conditions, have excellent mechanical properties, low water absorption property, low reactivity and superb gas barrier properties, and can withstand high-temperature sterilization.

Abstract: A vacuum packaging system for transporting a plurality of medical containers includes a plurality of medical containers each having a head side and a base side and a tray that receives and supports the medical containers. The tray includes opposing first and second sidewalls, opposing front and rear walls and a bottom floor. The walls extend generally vertically from the floor of the tray. At least one platform generally extends parallel to the floor of the tray. An air impervious flexible film defines an internal cavity. The air impervious flexible film completely surrounds the tray and the medical containers and the internal cavity is evacuated to and maintained at a predetermined vacuum level below atmospheric pressure. One of the head side and the base side of each medical container contacts a top surface of at least one platform when the medical containers are positioned in the tray.

Abstract: At a medicament manufacturer B, a mouth of a vial body 11 or syringe cartridge 51, in which a medicament 16 is sealed with a plug, is enclosed using a cap 15 or 50 under an environment of a predetermined cleanliness (for example, class M6.5 (the JIS method) or higher). In advance of this enclosure, the cap 15 or 51 has been manufactured at a container manufacturer A by molding with a molding material, which is free of any powdery material, under an environment having cleanliness not lower than the predetermined cleanliness. A cap for enclosing a mouth of a vial body or syringe cartridge sealed with a plug and a manufacturing method of the cap can be provided accordingly.