The present invention relates to an extensible drug injection device capable of injecting a drug from a location away from a patient, and an operation method therefor. Disclosed is a drug injection device comprising: a first sub-line of which one end joins with a main line, connected from a first drug storage part for storing a first drug to be injected into a patient to the body of the patient such that the first drug flows therein, and of which the other end is extended to the other side; a second drug injection part which is connected to the first sub-line and which injects a second drug that is different from the first drug; and a second drug pumping part which is connected to the first sub-line, and which pushes, to the main line, the second drug having been injected by the second drug injection part into the first sub-line.

The present invention relates to an infusion device comprising a clamp having a through hole that is configured to allow an infusion tube to pass through therethrough, and further having a baffle wall; a block having a mounting hole and an opening; a pressure member pivoted to the block and configured to press towards the baffle wall and close the infusion tube, wherein a position of the opening corresponds to the pressure member; and a handle pivoted to the block and having a protrusion that is configured to pass through the opening and push up against the pressure member so as to make the pressure member away from the baffle wall when the handle rotates towards the block around an axis, so that the infusion tube is no longer closed by pressing of the pressure member.

An infusion apparatus includes a fixture body, a tube socket and a buckling device. The fixture body has a first and a second ends along a first direction. The fixture body has a through hole. Two first protruding pieces are located at the second end along a second direction perpendicular with the first direction. The fixture body penetrates through and is slidable relative with the tube socket which has two grooves along the second direction. The buckling device includes a machine body and two hooking structures. The machine body has a mounting hole. The hooking structures are disposed at opposite sides of the mounting hole and respectively include a hook and a second protruding piece. The hooks buckle within the grooves. A shortest distance between the second protruding pieces is less than a longest distance between the first protruding pieces.

Enteral feeding pump systems valves assemblies therefor and related fluid flow control methods. The system includes a disposable fluid delivery set with an integral peristaltic tube section and an enteral feeding pump. The system may also include a pinching mechanism for regulating the flow of nutrient formula or water out of the fluid delivery set. Also disclosed is a flow selector valve assembly for an enteral feeding pump system, the valve assembly including a tube adapter having two input flexible tubing channels and one output tubing channel and being configured to position the flexible tubing channels in relation with a receiver. The receiver has an eccentric bearing that is moveable between a first position in which neither of the input flexible tubing channels is compressed, and a second position in which the eccentric bearing compresses one of the input flexible tubing channels therein to prevent flow therethrough.

A flow selector having features for controlling the flow rate of a fluid over a continuous range of flow rates is provided. In particular, a flow selector including a flow rate selection mechanism is provided, where the flow rate selection mechanism provides more precise control of the fluid flow rate. A flow selector comprising a needle valve for controlling the flow rate of a fluid over a continuous range of flow rates also is provided.

A roller clamp assembly for adjusting the fluid flow rate in a flexible infusion tube is provided. The roller clamp assembly includes a housing to receive the flexible tube, a plate slideably engaged with the housing and configured to rapidly compress the flexible tube to provide a coarse fluid flow adjustment, and a roller wheel moveable engaged with the housing and configured to provide a gradual fluid flow adjustment. The plate may be a slide plate received by grooves in an exterior wall of the housing, where the plate moves orthogonally to the flexible tube, or the plate may be a shim plate that moves along an interior wall of the housing in parallel to the flexible tube. Infusion sets and methods of adjusting fluid flow rates are also provided.

Systems and method for improving fluid flow during medication delivery procedures, such as infusions or pooling, are provided. A spike is punctured though a seal in a container. A liquid substance is drained from said container through a pathway in the spike. The spike includes a channel which permit sliding movement of a snorkel for elevation above the liquid substance to permit air to enter the container from outside without foaming the liquid substance.

A medicinal liquid flow control apparatus includes a medicinal liquid flow path that guides a flow of a medicinal liquid. The medicinal liquid flow path includes an inlet flow path through which the medicinal liquid is introduced, a plurality of branch flow paths branching from the inlet flow path, and an outlet flow path to which the plurality of branch flow paths join and through which the medicinal liquid flows out. The medicinal liquid flow control apparatus includes a plurality of transfer tubes configured to correspond to the plurality of branch flow paths, respectively, each of the transfer tubes forming a capillary flow path constituting at least a portion of a corresponding one of the plurality of branch flow paths, and a valve configured to control a flow rate of the medicinal liquid flowing out through the outlet flow path by selectively opening and closing the plurality of branch flow paths.

Methods and devices for accurately pumping small quantities of liquid to a patient with a broad range of flow and low cost.

A multi-use disposable set (MUDS) has at least one syringe having a proximal end and a distal end spaced apart from the proximal end along a longitudinal axis. The MUDS further has a plunger reciprocally movable within a syringe interior between the proximal end and the distal end. A manifold is in fluid communication with the distal end of the at least one syringe. At least one valve is in fluid communication with the syringe interior. The at least one valve is operable between a filling position for filling the syringe interior with fluid and a delivery position for delivering the fluid from the syringe interior. At least one connection port is in fluid communication with the manifold and the syringe interior when the at least one valve is in the delivery position. A multi-fluid delivery system having the medical connector and MUDS is also provided. Various features of the MUDS system are also described.