Transfer devices with vial adapter and/or an infusion set for reducing overdosing/underdosing of an infusion bag are provided. The transfer device provides user- controlled fluid transferring between an infusion liquid container and a drug-containing container. In one aspect, the transfer device provides user-controlled venting that can be used during liquid transfer between the infusion liquid container and a drug-containing container.

A connector is configured to connect a drug container with a solution container and permit contents of the drug container to be combined with the solution container. The connector has a connector body with a first coupling for fluid connection with the drug container. The first coupling defines a first fluid passage. The connector body also has a second coupling for fluid connection with the solution container. The second coupling defines a second fluid passage. A control valve has a movable valve body that defines a third fluid passage. The valve body is positionable relative to the connector body in a first position, in which the first fluid passage is sealed from the second fluid passage. The valve body is also positionable in a second position, in which the first fluid passage is connected in fluid communication with the second fluid passage by the third fluid passage.

A device and method for fluidly connecting a drug container with a solution container in a closed state, and for combining contents of the drug container and the solution container in an activated state. The device has a connector body with a first coupling and first fluid passage that connect with the drug container. The connector body also has a second coupling and second fluid passage that connect with the solution container. A control valve has a movable valve body that defines a third fluid passage. The valve body is positionable relative to the connector body in a first position that blocks fluid communication between the first fluid passage and second fluid passage. The valve body is also positionable in a second position that permits fluid communication between the first fluid passage and second fluid passage.

A septum holder having a disk shaped annular body. The body has a cylindrical bottom part that projects downward, a cavity created in the bottom part of the body, an insert comprising at least one bore that forms the seat of a needle valve fitted into the cavity, at least one resilient elongated arm attached to the side of the body, the at least one arm projecting downward and terminating with a distal enlarged element, and a septum. The septum is made of a single piece of cylindrically shaped resilient material. The upper part of the septum has a hollow interior forming a cylindrical recess having an inner diameter no larger than that of the outer diameter of the cylindrical section at the bottom of the body of the septum holder. The lowest part of the septum has a diameter that matches that of a septum in a fluid transfer component. The septum is adapted to be pushed over the bottom part of the body of the septum holder until the solid part of the septum below the recess butts against the bottom of the at least one bore in the insert.

A lock mechanism includes an engaged section of a second member and an engagement member of a first member. The engagement member includes an operating section, a fulcrum section configured to contact the second member in a state in which the operating section is pressed, an engaging section engaging with the engaged section, a deformation section configured to be bent to move the engaging section when the operating section is pressed, and a fixing section fixed to the edge of a hole.

An assembly for adding a medication or like substance to a liquid solution in a flexible bag (10) is provided. The flexible bag (10) contains a liquid solution, such as dialysate. An adapter (14) extends from the flexible bag (10) and includes a skirt (20) having an array of resilient sections (22) for engaging and snapping onto a neck finish (106) of a separate vial (100) containing a medication or like substance. A locking device (16) is adapted to be secured about the skirt (20) in a locking position that prevents outward movement of the array of resilient sections (22) and thereby prevents disengagement of the vial (100) from the adapter (14). A method of transferring the liquid solution from the bag (10) to the vial (100), mixing the medication with the liquid solution, and returning the mixture to the bag (10) is also provided.

A drug mixing system including at least one receptacle port adaptor adapted to be inserted into a port of a fluid receptacle, at least one syringe adaptor adapted to be attached to a syringe and to the at least one receptacle port adaptor and at least one vial adaptor adapted for connection to a vial containing a drug and adapted for connection to the at least one syringe adaptor, the system being characterized in that at least one of the receptacle port adaptor, the at least one syringe adaptor and the at least one vial adaptor being vented to the atmosphere in a manner which prevents release to the atmosphere of possibly harmful contents of the vial in a liquid, solid or gaseous form.

In certain embodiments, a vial adaptor for removing liquid contents from a vial comprises a piercing member and a bag. The bag can be contained within the piercing member such that the bag is introduced to the vial when the vial adaptor is coupled with the vial. In some embodiments, the bag expands within the vial as liquid is removed from the vial via the adaptor, thereby regulating pressure within the vial. In other embodiments, a vial comprises a bag for regulating pressure within the vial as liquid is removed therefrom. In some embodiments, a vial adaptor is coupled with the vial in order to remove the liquid. In some embodiments, as the liquid is removed from the vial via the adaptor, the bag expands within the vial, and in other embodiments, the bag contracts within the vial.

A fluid transfer system includes a container having a body having a sidewall extending between an open top end and a bottom end along a central axis to define an interior cavity, and at least one protrusion extending from an interior portion of the sidewall into the interior cavity. The system further including a connector configured for receipt within the interior cavity. The connector having a body having a distal end, a proximal end, and a sidewall extending between the distal end and the proximal end and defining a fluid passageway therethrough, and a locking arrangement provided on at least a portion of an inner member of the connector and accessible through at least a portion of an outer member of the connector. The locking arrangement is configured for cooperating with the at least one protrusion to prevent rotation of the inner member relative to the outer member.

A syringe adapter is provided. The adapter includes a housing having a first end and a second end positioned opposite the first end. The first end of the housing has a connector configured to be secured to a syringe barrel. The adapter also includes a cannula positioned within the housing and a seal arrangement including a membrane or septum positioned within the housing and movable within the housing, the seal arrangement comprising a membrane. The assembly can also include a protective cap having a first open end and a second closed end. The protective cap can be connected to the housing via a snap fit and can be configured to receive the second end of the housing.