The present invention relates to sealing valves that can be mounted within a container wall, enabling controlled fluid flow along both inner and outer surfaces of the sealing valve in the same distal direction.

A chest valve including: a housing including an inlet configured to connect to a chest tube, an outlet and a fluid passage from the inlet to the outlet; and a one-way valve within the housing and included in the flow passage, wherein the one-way valve includes: (i) a first tubular strip wherein having an internal air passage and a first layer defining the air passage, wherein the first layer has a first thickness and the internal air passage of the first tubular strip is included in fluid passage of the housing; and (ii) a second tubular strip wherein having a second layer with a second thickness with a second thickness greater than the first thickness, wherein an outer surface of the second tubular strip is adjacent and overlaps an outer surface of the first tubular strip.

A valve assembly including a housing having a base and an outer shell, which forms a proximal cavity and a distal cavity joined by a canal; an inner housing configured for longitudinal movement within the distal cavity; a seal positioned within the distal cavity that together with the longitudinal movement of the inner housing regulates the flow of fluid through the valve assembly; and one or more selected from the group consisting of the base notched with one or more notches and the inner housing having one or more through slots aligned to permit access to the one or more notches, the seal being a reversibly deformable sealing pin, and a torque limiter mechanism configured to resist the longitudinal movement of the inner housing distally until a sufficient radial force is applied.

A fluid-management system for selectively draining fluid from a body cavity includes a valve assembly and a tube for carrying fluid from a body cavity of a person to the valve assembly. The valve assembly is configured to be positioned external to the person's body and comprises (i) an inlet, (ii) an outlet, (iii) a pumping chamber between the inlet and outlet and configured to be compressed and decompressed to pump fluid, (iv) a first one-way valve positioned on a first side of the pumping chamber, (v) a second one-way valve positioned on a second side of the pumping chamber, and (vi) an adjustable inlet lock configured to selectively prevent fluid movement through the inlet, and wherein the tube is configured to extend from the inlet of the valve assembly to the person's body cavity.

Described is a catheter patency maintenance device comprising of a flush syringe, an elongate plunger rod with a stopper slidably positioned within the barrel, a cap, disinfectant and a valve movable between an open position and a closed position. The valve may include a valve stem and/or openings in the valve to permit fluid flow. Methods of using the flush syringe assemblies are also described.

A catheter assembly may include a catheter, a catheter hub coupled to the catheter, an injection port on the catheter hub, and an injection port backflow control device. The backflow control device may include a concentric port, a bellow, and a duckbill valve. The injection port backflow control device may include a split septum and a duckbill valve. The injection port backflow control device may include a deformable annular valve disposed around an inner surface of the catheter hub and may block an opening in the catheter hub connected to the injection port. The injection port may receive a needleless syringe for administration of medicine or other fluids. The injection port backflow control device may permit fluids to flow into the catheter hub and may prevent fluids from flowing out of the catheter hub through the injection port.

Some embodiments disclosed herein relate to medical connectors with a housing comprising a proximal body member and a base member that form an internal cavity with a proximal abutment surface. An elastomeric seal without a guide member is positioned within the internal cavity. A rigid, hollow elongated portion is located within the internal cavity such that in an open configuration, a tip of the elongated portion is more proximal than a proximal surface of the elastomeric seal. A distal portion of the elastomeric seal is seated radially within a region surrounded by a plurality of longitudinally extending protrusions.

A needleless valve system includes a cannula comprising a cannula tip; a valve comprising a valve tip, wherein the valve is disposed around the cannula; and a housing comprising a housing tip, wherein the cannula tip, the valve tip, and the housing tip comprise a flat surface when the needleless valve system is in a sealed position.

Needleless connectors are described. An example needleless connector includes a housing and a compressible valve. The housing may define an internal cavity and may include a body section having a first port and one or more internal contact tabs and a base section having a valve mount and a second port. The compressible valve may be disposed within at least a portion of the internal cavity and be movably retained within the housing. The compressible valve may include a flange portion for securing the compressible valve within the housing. A central longitudinal axis of the housing may be defined by a coaxial arrangement of the first and second port. The one or more internal contact tabs may be arranged to contact an outer side surface of the flange portion such that a radial force substantially orthogonal to the central longitudinal axis is provided for securement.

Disclosed is a medical fluid connector configured to receive and dispense medical liquid. The medical connector can be structured to include an initial stage in which medical liquid is infused into the connector and dispensed out of the connector essentially unchanged. The medical connector also can be structured to include a subsequent stage in which medical liquid is not infused into the connector and a volume of therapeutic liquid is dispensed out of the connector. The therapeutic liquid can include a portion of the volume of the medical liquid that was infused into the connector in the initial stage plus a therapeutic additive.