Abstract: Provided is a medical liquid injection device including a base body, a needle assembly mounted on the base body, a reservoir fluidly connected to the needle assembly and having an inner space in which a medical liquid is stored, a plunger disposed inside the reservoir, and configured to move in a longitudinal direction of the reservoir according to an amount of the medical liquid stored in the reservoir, and a first sensor unit configured to measure the amount of the medical liquid stored in the reservoir according to the movement of the plunger.

Abstract: Provided is a medical liquid injection device including a base body, a needle assembly mounted on the base body, a reservoir fluidly connected to the needle assembly and having an inner space in which a medical liquid is stored, a plunger disposed inside the reservoir, and configured to move in a longitudinal direction of the reservoir according to an amount of the medical liquid stored in the reservoir, and a first sensor unit configured to measure the amount of the medical liquid stored in the reservoir according to the movement of the plunger.

Abstract: The present invention relates to a liquid infusion device composed of a combination of a reusable module, which can be used repeatedly, and a disposable module, which is replaced after use. The present invention includes a solenoid (130) that generates magnetic force when powered, a first movable body (140) equipped with a magnet that performs a reciprocating motion driven by the magnetic force of the solenoid, and a steel plate (180) configured to interact with the magnet of the first movable body through attractive force. The reciprocating first movable body moves between a first point, where it is closest to the solenoid, and a second point, where it is farthest from the solenoid. When the solenoid is not powered, the first movable body is fixed at either the first or second point due to the attractive force between the magnet and the steel plate.

Abstract: The present invention relates to a liquid infusion device composed of a combination of a reusable module, which can be used repeatedly, and a disposable module, which is replaced after use. The present invention includes a solenoid (130) that generates magnetic force when powered, a first movable body (140) equipped with a magnet that performs a reciprocating motion driven by the magnetic force of the solenoid, and a steel plate (180) configured to interact with the magnet of the first movable body through attractive force. The reciprocating first movable body moves between a first point, where it is closest to the solenoid, and a second point, where it is farthest from the solenoid. When the solenoid is not powered, the first movable body is fixed at either the first or second point due to the attractive force between the magnet and the steel plate.

Abstract: The present invention includes a piston that performs a reciprocating motion, driven by the magnetic force of the solenoid, to discharge the liquid stored inside. The present invention comprising: an SUS pipe that is coupled to one side of the piston and moves reciprocally along with the piston; and first and second detection sensors (s1, s2) positioned adjacent to one end of the SUS pipe, which alternate between contact and non-contact states with the end of the SUS pipe due to its reciprocating motion. The device detects the contact and non-contact states between the first and second sensors and the SUS pipe to determine whether the piston is functioning properly.

Abstract: The present invention relates to a liquid infusion device composed of a combination of a reusable module, which can be used repeatedly, and a disposable module, which is replaced after use. The reusable module (100) includes a solenoid (130) that generates magnetic force when powered, a first movable body (140) that performs a reciprocating motion driven by the magnetic force from the solenoid, and a second movable body (150) that moves in conjunction with the reciprocating motion of the first movable body. The disposable module (200) consists of a reservoir (230) for storing the liquid and a piston-check valve module (250) that receives the liquid stored in the reservoir and discharges it externally. When the reusable module and the disposable module are coupled, the piston-check valve module is connected to the second movable body through the attractive force of a magnet.

Abstract: Provided is an electroosmotic pump including a housing including a shaft hole, a membrane disposed between a first space arranged in a direction away from the shaft hole and a second space adjacent to the shaft hole, a first electrode body and a second electrode body arranged at opposite sides based on the membrane, a shaft extending to an outside of the housing through the shaft hole, and a first fluid included in an internal space of the housing.

Abstract: The present disclosure provides a needle assembly and a drug injection device including a needle, a cannula into which the needle is inserted, a first holder supporting the needle, a second holder disposed to face one side of the first holder and supporting the cannula, a sleeve accommodating the first holder in an inner space and rotating with respect to the first holder, and an elastic member disposed between the first holder and the sleeve, wherein, when the sleeve is rotated, the elastic member is expanded and the first holder and the second holder are moved to an extended position, and wherein, when the sleeve is further rotated, the elastic member is contracted and only the first holder is returned to an original position.

Abstract: Provided is an electroosmotic pump including a housing including a shaft hole, a membrane disposed between a first space arranged in a direction away from the shaft hole and a second space adjacent to the shaft hole, a first electrode body and a second electrode body arranged at opposite sides based on the membrane, a shaft extending to an outside of the housing through the shaft hole, and a first fluid included in an internal space of the housing.

Abstract: The present disclosure provides a needle assembly and a drug injection device including a needle, a cannula into which the needle is inserted, a first holder supporting the needle, a second holder disposed to face one side of the first holder and supporting the cannula, a sleeve accommodating the first holder in an inner space and rotating with respect to the first holder, and an elastic member disposed between the first holder and the sleeve, wherein, when the sleeve is rotated, the elastic member is expanded and the first holder and the second holder are moved to an extended position, and wherein, when the sleeve is further rotated, the elastic member is contracted and only the first holder is returned to an original position.

Abstract: Provided is an electroosmotic pump including a housing including a shaft hole, a membrane disposed between a first space arranged in a direction away from the shaft hole and a second space adjacent to the shaft hole, a first electrode body and a second electrode body arranged at opposite sides based on the membrane, a shaft extending to an outside of the housing through the shaft hole, and a first fluid included in an internal space of the housing.

Abstract: The present invention relates to novel acrylate-type N-methyl E-2-(2-methylphenyl)oxymethyl)-6-methylphenyl-glyoxylamide O-methyl oxime represented by formula (1), its preparation method and its use as fungicides. The compound of the present invention has not only stronger fungicidal effect on plant pathogens at low concentrations but also broader fungicidal spectrum than the conventional fungicides. Especially, because the compound has excellent systemic and curative effect as well as no toxicity, it can be used as an efficacious agricultural fungicide. In addition, the compound of the present invention can be useful as environmental-friendly fungicide capable of causing less environmental pollution fungicide due to its strong fungicidal effect at low concentrations.