A fluid coupling element includes a body having a rear chamber and an intermediate chamber, a main valve movable to close a main passage between the rear and intermediate chambers, a forward valve movable to close a front orifice of the inner pipe under the action of a first spring, and a safety valve movable to close a secondary passage through the main valve between the rear and intermediate chambers. During coupling with a complementary coupling element, the forward valve moves a plunger that opens the safety valve before the main valve is opened. The coupling element includes a second spring, pushing the plunger back toward a forward position in which the main valve and the safety valve are closed, and the plunger abuts against the main valve or against the safety valve.

A catheter connector assembly which may be included with a corporeal drainage system, and a method of draining fluid from a bodily cavity. The catheter connector assembly may include a catheter connector and a drainage line connector. The catheter connector may include a connector body with a coupling feature, a deformable sealing element, and a retaining member. The drainage line connector may include a drainage line body first and second hinge clips, and an actuator. The actuator is designed to deform the deformable sealing element when the drainage line connector is coupled to the catheter connector.

An expanded flow rate receiver valve assembly attaches to a first fluid container and is in fluid communication with the first fluid container. The expanded flow rate receiver valve assembly includes a coupling section that selectively receives a closure valve attached to a second fluid container that selectively releases and restricts fluid contained in the second fluid container. The expanded flow rate receiver valve assembly also includes a valve chamber in fluid communication with the coupling section and located adjacent a coupling section opening. The valve chamber is in fluid communication with the first fluid container.

A fluid coupling element has a body, a valve with a peripheral groove receiving a sealing gasket, a member for resiliently returning the valve, and a skirt positioned inside the body and movable between a first position axially freed relative to the gasket and a second position radially covering the gasket. The element has at least one hitching member axially secured to the skirt and radially movable between a first radial position for axially securing the skirt and the body and for relative axial movement of the valve relative to the skirt, and a second position for axially securing the skirt and the valve and for relative axial movement of the skirt and the body, in a configuration where the skirt covers the gasket.

A rapid-connect coupler includes a coupler body configured to convey a fluid; a coupling head at a first end of and communicating with the coupler body, the coupling head configured to transition between a coupled configuration and a de-coupled configuration. The coupler may further include a stop apparatus configured to allow the coupling head to transition from the de-coupled configuration to the coupled configuration without obstruction, and the stop apparatus may be configured to provide a hard-stop as the coupling head transitions from the coupled configuration to the de-coupled configuration.

A coupling system includes a female coupling device, the female coupling device including a first main body with a first front face, the first front face defining a first opening leading into a first fluid passageway; a stem having a stem head positioned within a sleeve; a first spring positioned about the stem that biases the sleeve into a closed position; a first seal that seals between the main body and the sleeve; a second seal that seals between the sleeve and the stem head; and a third seal that is positioned at the opening of the main body. The coupling system includes a male coupling device, the male coupling device including a second main body with a second front face, the second front face defining a second opening leading into a second fluid passageway; a valve member and a second spring positioned within the second fluid passageway; and a major seal that seals between the second main body and the valve member. The second main body of the male coupling device is capable of being inserted into the first opening of the first main body of the female coupling device so that the first seal and the third seal of the female coupling device engage the second main body of the male coupling device. The sleeve and the valve member are displaced against the first and second springs such that the second seal and the major seal are disengaged so that fluid flows through the first and second fluid passageways.

A coupling system includes a female coupling device, the female coupling device including a first main body with a first front face, the first front face defining a first opening leading into a first fluid passageway; a stem having a stem head positioned within a sleeve; a first spring positioned about the stem that biases the sleeve into a closed position; a first seal that seals between the main body and the sleeve; a second seal that seals between the sleeve and the stem head; and a third seal that is positioned at the opening of the main body. The coupling system includes a male coupling device, the male coupling device including a second main body with a second front face, the second front face defining a second opening leading into a second fluid passageway; a valve member and a second spring positioned within the second fluid passageway; and a major seal that seals between the second main body and the valve member. The second main body of the male coupling device is capable of being inserted into the first opening of the first main body of the female coupling device so that the first seal and the third seal of the female coupling device engage the second main body of the male coupling device. The sleeve and the valve member are displaced against the first and second springs such that the second seal and the major seal are disengaged so that fluid flows through the first and second fluid passageways.

This coupling (R) comprises a male element (A) with a stepped outer groove (20), a female element (B) with locking balls (7), a locking ring (9) provided with a front inner notch and a rear inner notch axially separated by an inner rim, a spring that pushes the locking ring (9) back into the forward position, and a valve movable in the female element (B) and pushed by a spring (14) back to the closed position. The male element (A) comprises a valve movable in an inner channel (200) of the male element (A) and a spring (48) that pushes the valve of the male element (A) back toward a closed position of the inner channel (200).

A catheter connector assembly which may be included with a corporeal drainage system, and a method of draining fluid from a bodily cavity. The catheter connector assembly may include a catheter connector and a drainage line connector. The catheter connector may include a connector body with a coupling feature, a deformable sealing element, and a retaining member. The drainage line connector may include a drainage line body first and second hinge clips, and an actuator. The actuator is designed to deform the deformable sealing element when the drainage line connector is coupled to the catheter connector.

The present disclosure relates to a low-spill coupling assembly including a female coupling device and a male coupling device.