An intravenous delivery system may have a liquid source containing a liquid, tubing, and a vent cap. The tubing may be connected to the liquid source and the vent cap to convey liquid from the liquid source to the vent cap. The vent cap may have a vent that is substantially impermeable to the liquid and permeable to air, and therefore releases air from the liquid from the vent cap. The vent cap may also have a chamber in communication with the vent. The chamber may have a volume selected to enable the chamber to receive a quantity of liquid from the tubing in which the air, if entrained in the liquid, is likely to reside after the tubing has been primed with the liquid.

A medical connector includes: a housing including a male connector connection portion comprising a male connector connection port having a cylindrical shape, a medical instrument connection portion, and a valve body housing portion; and a valve body configured to open and close the male connector connection port, the valve body including a head portion, and a barrel portion that connects to the head portion. When a male connector is inserted into the male connector connection port, the head portion moves from the male connector connection port into the valve body housing portion and a slit in the head portion opens, such that a flow passage from the male connector connection portion to the medical instrument connection portion is formed.

Disclosed is a hemostasis valve device including a connector including a first channel, a holder disposed at a first end of the connector and configured to communicate with the first channel, and a valve portion disposed at a second end of the connector and configured to selectively open or close the first channel. Here, the connector includes a first pipe including the first channel and a second pipe which diverges from a first point of the first pipe and includes a second channel configured to communicate with the first channel. Also, the first pipe includes a hole which allows the first channel to communicate with the outside. Here, the hemostasis valve device further includes an opening and closing portion disposed at the first pipe and configured to selectively open or close the hole. The hole is disposed between the first end and the first point.

A connector for medical fluid vessels includes a fluid-seal fitting such as a male plug defining a lumen and mating with a cooperating connector, a mechanical fastener such as a screw thread for mating with the cooperating connector, and an outer housing positioned around the plug to form an annular space. Optionally, a cap can be provided with a fluid-seal fitting such as a male plug for mating with the lumen of the connector. The connector includes one or more vent openings for drainage and air-drying of any residual fluid in the annular space when capped, as well as for breaking a vacuum to prevent fluid backflow and thus ensure more accurate dosing. In some embodiments, the vent openings are provided in the outer housing. And in some embodiments, the vent openings are provided in the cap.

An intravenous delivery system may operate by gravity feed, and may have a liquid source containing a liquid, a drip unit that receives the liquid from the liquid source, and tubing that receives the liquid from the drip unit for delivery to a patient. A flow rate sensor may be used to measure a flow rate of liquid through the intravenous delivery system, and may generate a flow rate signal indicative of the flow rate. A controller may receive the signal, and may compare the flow rate with a desired flow rate. If the flow rate is more or less than the desired flow rate, the controller may transmit a control signal to a flow rate regulator. The flow rate regulator may receive the control signal and, in response, modify the flow rate to bring the flow rate closer to the desired flow rate.

A solution is proposed for closing a mouth (125) of a container (110) of a liquid (105). A corresponding closure (135) comprises a cap (205) having fixing means (315) for fixing the cap (205) to the container (110), a delivery port (321) for delivering the liquid (105) from the container (110), a valve member (215) in a closed position wherein the valve member (215) closes the delivery port (321), a cap suction conduit (339) for suctioning air into the container (110) during the delivering of the liquid (105) and a connector (327) for connecting to a delivery device (805) of the liquid (105), the connector (327) being in fluid communication with the delivery port (321), a slider (220) slidebly coupled with the cap (205), the slider (220) having a slider suction conduit (440) for suctioning the air into the container (110) during the delivering of the liquid (105) slidebly coupled with the cap suction conduit (339), and a frangible element (345) closing the cap suction conduit (339) or the slider suction conduit (440), wherein the closure (135) is configured to cause the delivery device (805) during the connecting thereof to move inwards the container (110), in a fixed condition wherein the closure (135) is fixed to the container (110), and thus moving the valve member (215) inwards the container to an open position, wherein the valve member (215) opens the delivery port (321), and moving the slider (220) inwards the container to break the frangible element (345), thereby putting in fluid communication the slider suction conduit (440) with the cap suction conduit (339).

A male-disinfecting cap is configured to couple with and apply an antiseptic agent to medical male luer-lock connector of the type including a post having a lumen. The cap includes a receiving portion which defines a chamber. The post of the male luer-lock connector is received into a single opening of the chamber. The receiving portion is configured to fit within the skirt of the male luer-lock connector when the post is received into the receiving portion. At least one vent is defined on the internal surface of the receiving portion and extends from the opening into the chamber, where an antiseptic is disposed. Protrusions on the external surface of the receiving portion engage helical threads of the internally helically threaded skirt. The male-disinfecting cap also includes a seal that prevents evaporation of the antiseptic agent in the chamber prior to use.

The present invention enables the completion of preparation of liquid medicine injection to be easily and quickly checked with the naked eye based on a color change in an endcap for a liquid medicine-injecting tube. As long as a medical staff checks a color change in the endcap with the naked eye, the medical staff can immediately perform an operation of connecting the tube to a catheter (or injection needle) or the like after removal of the endcap without unnecessarily draining off a large amount of the liquid medicine.

A device for coupling to a fluid connector of an IV administration set to resist contamination of the fluid connector and IV administration set and permit priming of the IV administration set. The device including a cover body having a cavity for receiving the fluid connector, a priming passage for priming fluid from the IV administration set through the fluid connector, and a coupling tab extending from the cover body, the coupling tab permitting the cover body to be coupled to a length of an IV line or other portion of the IV administration set to resist contamination and permit priming of the IV administration set.

A method may include priming a catheter system. The catheter system may include a catheter adapter, a catheter, and an extension tube. The catheter system may also include a Y-adapter, which may include first and second arms. A distal end of the Y-adapter may be coupled to the extension tube. The catheter system may further include a vent cap, which may be coupled to the second arm. Priming the catheter system may include attaching an IV line to the first arm and delivering saline through the IV line to the catheter system such that the saline exits a distal tip of the catheter and clamping the IV line via a roller clamp on the IV line. The method may also include actuating the vent cap after priming the catheter system. The method may further include inserting the catheter into a vein of a patient after actuating the vent cap.