A releasable valved coupler and a method of producing and using such a coupler including a coupler body having a first valve element and a coupler insert having a second valve element, wherein a first valve tip of the first valve element can engage a second valve tip of the second valve element upon insertion of the coupler insert inside of a tubular chamber of the coupler body, whereby the first valve element disengages a first valve seat and the second valve element disengages a second valve seat to open a flow path through the coupler. By moving the coupler body and the coupler insert in outward opposed axial directions, the first and second valve tips can disengage, correspondingly engaging the first valve element with the first valve seat and engaging the second valve element with the second valve seat to close the flow path through the coupler.

An instrument head including an exit opening (23), a first feed line (11) for feeding a first fluid, a second feed line (12) for feeding a second fluid, and a reservoir (24) for storing the second fluid fed via the second feed line (12) is disclosed. The reservoir (24) is in fluid communication with the first feed line (11) and/or is adapted to be brought in fluid communication with the first feed line (11) via at least a valve (25) arranged in the instrument head, to deliver the second fluid stored in the reservoir (24) via the exit opening (23).

A check valve includes a housing that includes an inlet port, an outlet port, and a valve chamber. The inlet port extends from a ceiling of the valve chamber to an outer surface of the housing. The outlet port extends from a floor of the valve chamber to the outer surface of the housing. The check valve further includes a valve member supported within the chamber. The valve includes a valve head. When an upstream pressure is applied to the valve, the valve head is configured to deflect away from the ceiling of the valve chamber and unseal the inlet port. When a downstream pressure is applied to the valve, the valve head is configured to deflect away from the floor of the valve chamber and seal the inlet port such that the valve head conforms to a shape of the ceiling of the valve chamber.

A foot valve for drip chambers of medical infusion or transfusion apparatuses having an annular valve seat with which a float obturator axially displaceable between a position for closing and a position for opening the valve seat cooperates. A containment cage bush has an elastically deformable lateral wall within which the float obturator floats in a guided fashion, and the lateral wall of the containment bush and the float have respective mutually facing surfaces configured such that a radial deformation of the containment bush applies an axial thrust to the float obturator in the direction of moving it apart from the annular valve seat.

An aseptic connector assembly includes a body portion having a receptacle configured to receive a corresponding fill connector. A pivot portion is movably coupled to the body portion, the pivot portion having a channel formed therein. A conduit portion is slidably disposed within the channel formed in the pivot portion. The pivot portion has a ready position and an operative position, the pivot portion being adjustable from the ready position to the operative position via relative movement with respect to the body portion.

A medical instrument for diagnostic, therapeutic, or surgical measures in a cavity in the body of a patient may include a proximal region, which is provided and designed for arrangement outside the body, a distal region, which is provided and designed for arrangement inside a cavity in the body, a supply structure for delivering a fluid to the cavity, wherein the supply structure reaches from a first coupling in the proximal region of the medical instrument to an outlet in the distal region, and a discharge structure for discharging a fluid from the cavity, wherein the discharge structure reaches from an inlet in the distal region of the medical instrument to a second coupling in the proximal region of the medical instrument. The flow resistance of the supply structure is greater than the flow resistance of the discharge structure.

An MRI-safe implantable infusion apparatus and a method that include a flow actuated valve (FAV) that closes to prevent a free flow of an infusate to a patient during an MRI procedure, and a release mechanism that opens the valve so that the apparatus may return to normal operation following the MRI procedure. In this manner, patient safety is improved and an inconvenience of having to empty a pump reservoir before undergoing the MRI procedure may be avoided.

A medical fluid connection device connects to a complementary connector unit in a fluid-conducting manner. The medical fluid connection device has a housing member having an inlet opening and at least one outlet opening. The inlet opening and at least one outlet opening are interconnected in a fluid-conducting manner by a fluid duct that extends substantially along an axial direction, and a soft elastic sealing member which in a circumferential direction at least in portions encompasses a wall of the fluid duct and along the axial direction is guided so as to be movable in relation to the wall of the fluid duct. A Luer external taper connects to a Luer internal taper of the complementary connector unit in a fluid-tight manner. The Luer external taper is configured by a wall portion of the soft elastic sealing member. The medical fluid connection device can be used in infusion therapy.

A medical push button valve having a valve housing, a flow channel formed in the valve housing as well as a valve piston which is arranged displaceably in the valve housing between a position releasing the flow channel and a position closing the flow channel. The valve piston is operatively connected with a pressure element mounted on the valve housing and is spring-loaded via at least one spring element. The valve piston is biased into the position closing the flow channel with the spring-loaded pressure element. In order to provide a medical push button valve which allows for a simple and fatigue-free one-handed operation, the spring-loaded pressure element can be locked in at least one position in which the valve piston operatively connected with the pressure element at least partially releases the flow channel.

A device for delivering an agent may comprise a source of agent; a mixing chamber for receiving fluid and the agent; an outlet in fluid communication with the mixing chamber to deliver the fluid and the agent; and an actuator configured to (1) deliver a first flow of the fluid substantially free from the agent through the outlet; (2) after delivering the first flow, deliver a second flow of the fluid and the agent through the outlet; and (3) after delivering the second flow, deliver a third flow of the fluid substantially free from the agent through the outlet.