Abstract: A pharmaceutical syringe unit is configured to be mounted to a pharmaceutical injection device main body and hold a pharmaceutical-filled pharmaceutical syringe, in order to mount the pharmaceutical syringe to a pharmaceutical injection device, wherein a syringe cover is configured to slide forward and backward with respect to a distal end cap by operation of the pharmaceutical injection device main body, thereby allowing movement between a needle insertion position at which insertion of an injection needle into a target is to be completed, and a needle withdrawal position at which withdrawal of the injection needle from the target is to be completed, and a guide component is configured to guide the syringe cover over a range that is greater than a distance between the needle insertion position and the needle withdrawal position.

Abstract: An expansion/compression mechanism of a piston rod assembly is composed of a bush shaft, a first cylindrical piston rod that is screwed with the bush shaft, a second cylindrical piston rod that is screwed with the first piston rod, and a piston rod holding member for housing the bush shaft and these piston rods. Therefore, the piston rods move linearly in multiple stages.

Abstract: A medication administering device, to which a preparation syringe containing a preparation is mounted, and which administers a preparation to a living body, and comprises a main body; a cylindrical syringe holder that is provided to the main body and into which the preparation syringe is inserted from the rear end side; a cylindrical syringe cover that supports the preparation syringe on the inner peripheral face side, and into which the preparation syringe is inserted from the distal end side; an inner case that guides the syringe cover and is removably fitted together with the syringe cover; and a distal end cap that guides the main body and is removably fitted together with the main body, and moves in conjunction with the syringe cover during attachment to the main body.

Abstract: A medication administering device, to which a preparation syringe containing a preparation is mounted, and which administers a preparation to a living body, and comprises a main body; a cylindrical syringe holder that is provided to the main body and into which the preparation syringe is inserted from the rear end side; a cylindrical syringe cover that supports the preparation syringe on the inner peripheral face side, and into which the preparation syringe is inserted from the distal end side; an inner case that guides the syringe cover and is removably fitted together with the syringe cover; and a distal end cap that guides the main body and is removably fitted together with the main body, and moves in conjunction with the syringe cover during attachment to the main body.

Abstract: A pharmaceutical syringe unit is configured to be mounted to a pharmaceutical injection device main body and hold a pharmaceutical-filled pharmaceutical syringe, in order to mount the pharmaceutical syringe to a pharmaceutical injection device, wherein a syringe cover is configured to slide forward and backward with respect to a distal end cap by operation of the pharmaceutical injection device main body, thereby allowing movement between a needle insertion position at which insertion of an injection needle into a target is to be completed, and a needle withdrawal position at which withdrawal of the injection needle from the target is to be completed, and a guide component is configured to guide the syringe cover over a range that is greater than a distance between the needle insertion position and the needle withdrawal position.

Abstract: With certain implementations, the configuration is such that a controller uses a first driver to move a pharmaceutical syringe attachment component closer to the distal end side than a needle removal position when a needle unit is attached to a pharmaceutical syringe unit or when the needle unit is removed from the pharmaceutical syringe unit, so when an injection needle is attached to the pharmaceutical syringe unit, or when the injection needle is removed from the pharmaceutical syringe unit, these operations can be executed without removing a distal end cap, which makes the device extremely convenient to use.

Abstract: A pharmaceutical syringe unit is configured to be mounted to a pharmaceutical injection device main body and hold a pharmaceutical-filled pharmaceutical syringe, in order to mount the pharmaceutical syringe to a pharmaceutical injection device, wherein a syringe cover is configured to slide forward and backward with respect to a distal end cap by operation of the pharmaceutical injection device main body, thereby allowing movement between a needle insertion position at which insertion of an injection needle into a target is to be completed, and a needle withdrawal position at which withdrawal of the injection needle from the target is to be completed, and a guide component is configured to guide the syringe cover over a range that is greater than a distance between the needle insertion position and the needle withdrawal position.

Abstract: A pharmaceutical cartridge holding unit holds a pharmaceutical cartridge and is mounted to a pharmaceutical injection device main body in order to mount the pharmaceutical cartridge to a pharmaceutical injection device. The pharmaceutical cartridge holding unit comprises an outer peripheral cap having a front end side opening and a rear end side opening, and a cartridge cover that is on an inside of the outer peripheral cap and is held in a state of being able to slide forward and backward with respect to the outer peripheral cap. The outer peripheral cap has a guide component configured to guide sliding of the cartridge cover forward and backward, a stopper configured to prevent the cartridge cover from coming loose from the outer peripheral cap, and an engagement component that can engage with the pharmaceutical injection device main body.

Abstract: An expansion/compression mechanism of a piston rod assembly is composed of a bush shaft, a first cylindrical piston rod that is screwed with the bush shaft, a second cylindrical piston rod that is screwed with the first piston rod, and a piston rod holding member for housing the bush shaft and these piston rods. Therefore, the piston rods move linearly in multiple stages.

Abstract: An expansion/compression mechanism of a piston rod assembly is composed of a bush shaft, a first cylindrical piston rod that is screwed with the bush shaft, a second cylindrical piston rod that is screwed with the first piston rod, and a piston rod holding member for housing the bush shaft and these piston rods. Therefore, the piston rods move linearly in multiple stages.

Abstract: A medication administering device, to which a preparation syringe containing a preparation is mounted, and which administers a preparation to a living body, and comprises a main body; a cylindrical syringe holder that is provided to the main body and into which the preparation syringe is inserted from the rear end side; a cylindrical syringe cover that supports the preparation syringe on the inner peripheral face side, and into which the preparation syringe is inserted from the distal end side; an inner case that guides the syringe cover and is removably fitted together with the syringe cover; and a distal end cap that guides the main body and is removably fitted together with the main body, and moves in conjunction with the syringe cover during attachment to the main body.

Abstract: A medication administering device, to which a preparation syringe containing a preparation is mounted, and which administers a preparation to a living body, and comprises a main body; a cylindrical syringe holder that is provided to the main body and into which the preparation syringe is inserted from the rear end side; a cylindrical syringe cover that supports the preparation syringe on the inner peripheral face side, and into which the preparation syringe is inserted from the distal end side; an inner case that guides the syringe cover and is removably fitted together with the syringe cover; and a distal end cap that guides the main body and is removably fitted together with the main body, and moves in conjunction with the syringe cover during attachment to the main body.

Abstract: A medication administering device, to which a preparation syringe containing a preparation is mounted, and which administers a preparation to a living body, and comprises a main body; a cylindrical syringe holder that is provided to the main body and into which the preparation syringe is inserted from the rear end side; a cylindrical syringe cover that supports the preparation syringe on the inner peripheral face side, and into which the preparation syringe is inserted from the distal end side; an inner case that guides the syringe cover and is removably fitted together with the syringe cover; and a distal end cap that guides the main body and is removably fitted together with the main body, and moves in conjunction with the syringe cover during attachment to the main body.

Abstract: There is provided a pharmaceutical syringe unit that is mounted to a pharmaceutical injection device main body and holds a pharmaceutical syringe, in order to mount the pharmaceutical-filled pharmaceutical syringe to a pharmaceutical injection device, wherein a syringe cover is slid in the forward and backward direction with respect to a distal end cap by the operation of the pharmaceutical injection device main body, allowing movement between a needle insertion position at which the insertion of an injection needle into a target is completed, and a needle withdrawal position at which the withdrawal of the injection needle from the target is completed, and the range over which the syringe cover can be slid by a guide component is greater than the distance between the needle insertion position and the needle withdrawal position.

Abstract: A pharmaceutical cartridge holding unit holds a pharmaceutical cartridge and is mounted to a pharmaceutical injection device main body in order to mount the pharmaceutical cartridge to a pharmaceutical injection device. The pharmaceutical cartridge holding unit comprises an outer peripheral cap having a distal end opening and a rear end opening, and a cartridge cover that is disposed on the inside of the outer peripheral cap and is held in a state of being able to slide forward and backward with respect to the outer peripheral cap. The outer peripheral cap has a guide component that guides the sliding of the cartridge cover forward and backward, stoppers that prevent the cartridge cover from coming loose from the outer peripheral cap, and protrusions that can engage with the pharmaceutical injection device main body.

Abstract: This pharmaceutical injection system is provided with a pharmaceutical injection device, a charging device, a detector, and an alarm section. The pharmaceutical injection device has a main body case and a pharmaceutical syringe mounting portion provided within the main body case and to which a pharmaceutical syringe is removably mounted. The pharmaceutical injection device is placed in the charging device, and the charging device has a charger for charging the pharmaceutical injection device. The detector is provided to the pharmaceutical injection device and/or the charging device and detects whether or not the pharmaceutical syringe has been mounted to the pharmaceutical syringe mounting portion. The alarm section is connected to the detector and emits an alarm when it is detected that the pharmaceutical syringe has been mounted onto the pharmaceutical syringe mounting portion.

Abstract: With certain implementations, the configuration is such that a controller uses a first driver to move a pharmaceutical syringe attachment component closer to the distal end side than a needle removal position when a needle unit is attached to a pharmaceutical syringe unit or when the needle unit is removed from the pharmaceutical syringe unit, so when an injection needle is attached to the pharmaceutical syringe unit, or when the injection needle is removed from the pharmaceutical syringe unit, these operations can be executed without removing a distal end cap, which makes the device extremely convenient to use.

Abstract: A pharmaceutical injection device (100) comprises a main body (1), a movable member (11), a pharmaceutical holding member (10), and a first detector (28). The movable member (11) is mounted movably in the lengthwise direction of the main body (1). The pharmaceutical holding member (10) is mounted to the movable member (11), has a needle mount (17) for an injection needle (16) on one end, and houses a pharmaceutical syringe (50) containing the drug to be injected into a body. The first detector (28) is provided to the movable member (11) and detects the mounting of the needle (16) on the needle mount (17). The pharmaceutical injection device (100) improves the accuracy of detecting the mounting of a needle and/or a pharmaceutical syringe.

Abstract: This pharmaceutical injection device comprises a main body case; a pharmaceutical syringe mounting portion provided inside the main body case; a piston that is provided so as to be movable with respect to a pharmaceutical syringe that is removably attached to the pharmaceutical syringe mounting portion; a drive mechanism for driving the piston; a controller that is electrically connected to the drive mechanism; and an acceleration sensor that is connected to the controller. When a manual mixing mode of the pharmaceutical syringe is selected, the controller changes to the next step (air venting mode) if the inclination angle of the main body case sensed by the acceleration sensor is greater than a specific value.

Abstract: An expansion/compression mechanism of a piston rod assembly is composed of a bush shaft, a first cylindrical piston rod that is screwed with the bush shaft, a second cylindrical piston rod that is screwed with the first piston rod, and a piston rod holding member for housing the bush shaft and these piston rods. Therefore, the piston rods move linearly in multiple stages.