Abstract: The present invention suppresses the amount of fluid pushed out from an injection needle when confirming whether air has been pushed out of the injection needle. Provided is a syringe that comprises: a cylinder 20; an injection needle 22; a needle base 24; an injection needle cover 26; and a plunger rod 28. The needle base 24 communicates between the inside of the cylinder 20 and the inside of the injection needle 22. The injection needle cover 26, when extended from a folded state, surrounds the injection needle 22. The injection needle cover 26 comprises an injection needle surrounding part. The injection needle surrounding part has at least one cutout 130 in a section facing the needle base 24 and covering the needle base, such that the needle base 24 can be identified from the outside.

Abstract: The present invention improves the feeling in use when a finger is hooked on a finger grip. This syringe is provided with a cylinder 22, a syringe needle 24, a finger grip 30, and a plunger rod 32. The finger grip 30 is provided with a cylindrical portion and a pair of finger hook portions. The finger hook portion has an inclined curved surface 70 and an end-side curved surface 72. The inclined curved surface 70 is disposed on a side, of a side surface of the finger hook portion, connected to the cylinder 22. In the inclined curved surface 70, the inclination of a base-side region with respect to the center axis of the cylindrical portion is gentler than the inclination of an end-side region with respect to the center axis of the cylindrical portion. The end-side curved surface 72 is disposed at the boundary between the end of the finger hook portion and the inclined curved surface 70. The end-side curved surface 72 extends along the boundary.

Abstract: The present invention improves the feeling in use when a finger is hooked on a finger grip. This syringe is provided with a cylinder 22, a syringe needle 24, a finger grip 30, and a plunger rod 32. The finger grip 30 is provided with a cylindrical portion and a pair of finger hook portions. The finger hook portion has an inclined curved surface 70 and an end-side curved surface 72. The inclined curved surface 70 is disposed on a side, of a side surface of the finger hook portion, connected to the cylinder 22. In the inclined curved surface 70, the inclination of a base-side region with respect to the center axis of the cylindrical portion is gentler than the inclination of an end-side region with respect to the center axis of the cylindrical portion. The end-side curved surface 72 is disposed at the boundary between the end of the finger hook portion and the inclined curved surface 70. The end-side curved surface 72 extends along the boundary.

Abstract: The present invention suppresses the amount of fluid pushed out from an injection needle when confirming whether air has been pushed out of the injection needle. Provided is a syringe that comprises: a cylinder 20; an injection needle 22; a needle base 24; an injection needle cover 26; and a plunger rod 28. The needle base 24 communicates between the inside of the cylinder 20 and the inside of the injection needle 22. The injection needle cover 26, when extended from a folded state, surrounds the injection needle 22. The injection needle cover 26 comprises an injection needle surrounding part. The injection needle surrounding part has at least one cutout 130 in a section facing the needle base 24 and covering the needle base, such that the needle base 24 can be identified from the outside.

Abstract: A novel technique is provided for preserving a liquid pharmaceutical preparation safely and stably. The nano-bubble water of the present invention, which is produced in the presence of a surfactant, a hydrophilic resin and/or an electrolyte and contains not less than 2.0×108 bubbles/mL of nano-bubbles, shows a superior antibacterial action, and can be used as a base of a liquid pharmaceutical preparation showing safe and stable preservation property.

Abstract: A novel technique is provided for preserving a liquid pharmaceutical preparation safely and stably. The nano-bubble water of the present invention, which is produced in the presence of a surfactant, a hydrophilic resin and/or an electrolyte and contains not less than 2.0×108 bubbles/mL of nano-bubbles, shows a superior antibacterial action, and can be used as a base of a liquid pharmaceutical preparation showing safe and stable preservation property.

Abstract: A sustained-release composition which comprises (i) a physiologically active substance and (ii) a lactic acid-glycolic acid copolymer in which the weight-average molecular weight (Mw) is about 8,000 to about 11,500, the ratio of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn) is greater than 1.9, and the compositional molar ratio of lactic acid to glycolic acid is 99.9/0.1 to 60/40, or a salt thereof, and which does not contain a drug retaining substance is provided and said sustained-release composition has improved spherical property and/or needle penetrating property.

Abstract: A provision of a method for producing a microsphere improved in dispersibility. A method for producing a microsphere improved in dispersibility, characterized in that during the production of microspheres by an in-water drying method, an osmotic pressure regulating agent is added to an outer water phase.

Abstract: A prefilled syringe has a tubular body which has an open front end and an open rear end. A front assembly is mounted on an outer periphery of a front end portion of the tubular body. A finger grip is mounted on an outer periphery of a rear end portion of the tubular body. A front sealing member is provided in the tubular body so as to be disposed forwardly of injection liquid and a rear sealing member is provided in the tubular body so as to be disposed rearwards of the injection liquid. A plunger rod is provided so as to be movable in the tubular body. A temporary stop member temporarily stops the plunger rod through retention of the temporary stop member by the finger grip such that the rear sealing member is temporarily stopped at a predetermined position of the tubular body. A retention canceling member cancels the retention of the temporary stop member by the finger grip without moving the plunger rod.