Abstract: A syringe set includes a first syringe having a first connection port and a drug container having a second connection port. The first connection port includes an injection needle attachment structure to which an injection needle is attachable, and a blocking member that is disposed in the injection needle attachment structure and blocks attachment of the injection needle. When the second connection port is connected to the first connection port, the blocking member is connected to the second connection port side, and when the second connection port is detached, the blocking member is detached from the first connection port so as to allow the injection needle to be attached to the first connection port.

Abstract: A syringe barrel includes a connection blocking member that blocks the connection of another medical tool to a tip portion and/or a collar portion. An inner surface of the collar portion including a barrel-side threaded portion and an outer surface of a cylindrical main body portion including a blocking member-side threaded portion include a rotation restricting engagement portion that is partially engaged when the barrel-side threaded portion and the blocking member-side threaded portion are screwed together and restricts rotation of the connection blocking member in the collar portion in the screwing release direction.

Abstract: A syringe assembly of a prefilled syringe includes a syringe cap. A tapered section of a second tubular section constituting this cap has, on an outer peripheral surface of the tapered section, a plurality of stepped sections continuously arranged along a center axis of a cover member, so as to gradually increase a protruding amount of the tapered section from an outer peripheral surface of an annular peripheral wall section toward a vicinity of an outer edge of an opening of a first tubular section.

Abstract: A gasket pressing tool includes a syringe attachment member attached to an outer tube, a gasket pressing member that presses a gasket of a syringe, a pressing member biasing body accommodated in the gasket pressing member, a biasing body pressing tubular member that accommodates a rear end portion of the pressing member biasing body and has side portions provided with opening portions, and movement restriction members of the pressing member held by the tubular member and having engagement protrusions that enter through the opening portions of the tubular member. The pressing tool has an engaged state maintaining function for the engagement protrusion of the movement restriction member and the pressing member-side engagement portion of the pressing member, and an operation function for the engagement protrusion for releasing the engagement therebetween.

Abstract: A prefilled syringe includes a syringe outer cylinder, a first gasket, a freeze-dried agent, a distal member, and a cap. The distal member is configured to be displaced from a first state in which the distal member is temporarily mounted on a distal portion of the syringe outer cylinder to a second state in which the first chamber is sealed by the distal member.

Abstract: A syringe assembly of a pre-filled syringe that includes a syringe cap having a tubular cover member that covers a cap body. The cover member includes a substantially opaque first tubular section and a second tubular section having a display section. An inner peripheral surface of the cover member is roughened at least from a vicinity of a distal end of the first tubular section to a vicinity of a proximal end section of a proximal end tubular section.

Abstract: A syringe of a syringe assembly is provided with a body portion capable of being filled with a drug solution and a female port nozzle portion which extends from a distal end of the body portion and includes a communication port on a proximal end of the female port nozzle. The body portion includes a distal end wall surface and a side wall surface to which a liquid lubricant is applied. The distal end wall surface includes a concave portion arranged radially outside an inner edge portion adjacent to the communication port and concave in a distal end direction more than at least a part of the inner edge portion, and the concave portion is arranged to fully surround the communication port and may store the liquid lubricant.

Abstract: A female syringe barrel is disclosed, which includes two protrusions provided on a cylindrical portion. A length (Lp) of each protrusion of the two protrusions along a direction, perpendicular to an axis of the cylindrical portion and perpendicular to a direction in which each protrusion of the two protrusions protrudes from the cylindrical portion, is 2.0 mm to 4.5 mm. A width of each protrusion of the two protrusions along an axial direction of the cylindrical portion is 1.0 mm to 2.1 mm. Each protrusion of the two protrusions has an inclined surface, which opposes a trailing flank of a screw when the two protrusions are engaged into the screw of a lock adapter, in an end portion close to a barrel body.

Abstract: A medical device package includes: a medical device container including a nest which holds a plurality of medical devices (syringes) to be filled with medicine to be aligned in a predetermined direction, a medical device container main body which accommodates the nest, and a sheet-shaped first sealing member which seals the medical device container main body; and a storage container for packing with an outer peripheral surface of the medical device container maintained in a sterile state. The storage container is formed of a storage container main body accommodating the medical device container and having a shape-retaining property, and seals a transfer opening at an upper end of the storage container main body with a sheet-shaped second sealing member having an antibacterial property and air permeability.

Abstract: A medication administration device includes: a casing; a syringe including: a barrel housed in the casing, and a puncture needle in fluid communication with the barrel and configured to administer the medication to a living body; a needle cover having a hollow cylindrical shape, disposed inside the casing, covering a distal end of the syringe, and configured to be displaced toward a proximal end relative to the casing when the needle cover is pressed against a puncture target; a plunger disposed inside the casing and configured to eject the medication through the puncture needle upon movement of a distal end of the plunger inside the barrel; and a cap detachably disposed at a distal end of the needle cover, and configured to be detached before the puncture needle punctures the puncture target.

Abstract: A prefilled syringe includes a barrel body, a gasket that seals a proximal end side of a medicine chamber of the barrel body, and a cap that is attached to a tip and seals a distal end side of the medicine chamber. The cap includes a surface area increasing member that extends to the proximal end side, is inserted into a flow path of the tip, and protrudes to the medicine chamber to increase a surface area of a medicine solidified in a lump in the medicine chamber.

Abstract: In a syringe, which is a prefilled syringe, when a cap body is attached to a cylindrical portion, a first sealing section is compressed radially inward by an inner peripheral surface constituting an opening of the cylindrical portion, thereby sealing a distal end section of a flow path in a liquid-tight manner, and a second sealing section is compressed radially inward by an inner peripheral surface of a proximal end section of the cylindrical portion, thereby sealing a proximal end section of the flow path in a liquid-tight manner.

Abstract: A syringe barrel includes: a barrel body including a nozzle portion at a distal end thereof; and a cap removably mounted to the nozzle portion and configured to seal a distal end opening of the nozzle portion. The cap includes: an inner cap formed of an elastic material and configured to come in liquid tight contact with the nozzle portion in a mounted state in which the cap is mounted to the nozzle portion, and a cylindrical outer cap formed of a material having a higher hardness than the inner cap and fixed around the inner cap. The inner cap includes: a base portion, and a cylindrical wall extending from the base portion in a proximal direction and surrounding the nozzle portion.

Abstract: A syringe system includes a syringe and a pressurization device for a syringe. The pressurization device for a syringe is configured so that the plunger advances by a forward rotation of the plunger, and the plunger retracts by a reverse rotation of the plunger. The plunger is advanceable by pressing the gasket at the time of the forward rotation and is retractable with respect to the barrel without pulling the gasket in the proximal end direction at the time of the reverse rotation.

Abstract: A syringe set, a syringe and a set include a first syringe having a first connection port and a drug container having a second connection port. The first connection port includes an injection needle attachment structure to which an injection needle is attachable, and a blocking member that is disposed in the injection needle attachment structure and blocks attachment of the injection needle. When the second connection port is connected to the first connection port, the blocking member is connected to the second connection port side, and when the second connection port is detached, the blocking member is detached from the first connection port so as to allow the injection needle to be attached to the first connection port.

Abstract: A method for manufacturing a syringe barrel includes: providing a syringe barrel comprising a hollow body portion having an inner surface, the syringe barrel being configured such that a gasket is insertable into the syringe barrel and slidable on the inner surface of the body portion; applying a non-reactive silicone oil having a viscosity in a range of 3000 cps to 30000 cps to the inner surface of the body portion by spraying the silicone oil with a coating amount rate of 0.02 mg/cm2 to 0.2 mg/cm2; and heating the silicone oil applied to the inner surface of the body portion in a state in which a liquid is not filled in the syringe barrel, without using a tool to spread or smooth the silicone oil.

Abstract: A female syringe of a syringe kit includes a female syringe barrel including a cylindrical portion into which a nozzle of a male syringe is insertable, a hollow cylindrical packing arranged in the cylindrical portion, and a cap detachably attached to the cylindrical portion. When the cap is detached from the cylindrical portion, the packing remains in the cylindrical portion, a distal end opening is opened, and the nozzle of the male syringe is fitted in a liquid-tight manner to an inner side of the packing.

Abstract: A syringe assembly includes a prefilled syringe and a cap. A cap body is configured to be displaced from a first position where a viewing portion is positioned in a cylindrical main body to a second position where the viewing portion protrudes in a distal end direction from an opening of the cylindrical main body. When a mounting tube portion of the cap removed from a syringe body is brought close to a nozzle portion of the syringe body, the cap body is pressed in the distal end direction by the nozzle portion, thereby being displaced from the first position to the second position, and the appearance of an outer peripheral portion of the viewing portion changes.

Abstract: A syringe assembly of a pre-filled syringe that includes a syringe cap having a tubular cover member that covers a cap body. The cover member includes a substantially opaque first tubular section and a second tubular section having a display section. An inner peripheral surface of the cover member is roughened at least from a vicinity of a distal end of the first tubular section to a vicinity of a proximal end section of a proximal end tubular section.

Abstract: A syringe assembly of a prefilled syringe includes a syringe cap. A tapered section of a second tubular section constituting this cap has, on an outer peripheral surface of the tapered section, a plurality of stepped sections continuously arranged along a center axis of a cover member, so as to gradually increase a protruding amount of the tapered section from an outer peripheral surface of an annular peripheral wall section toward a vicinity of an outer edge of an opening of a first tubular section.