A connector for forming a fluid flow pathway by connection with a reciprocal connector. Both the connector and reciprocal connector include a fluid flow blockage part sheathed within an axially compressible sheath part. A first bearing surface receives an urging force to retract the blockage part axially along the sheath part. A terminal end of the sheath part defines a second bearing surface containing a fluid flow opening with the fluid flow blockage part retractably therein. A first chassis part includes a first catch part. A second chassis part includes a second catch part and a third bearing surface spaced from the second catch part along the second chassis part. Retraction of the blockage part forms a fluid flow pathway not sooner than immediately when the openings meet to allow fluid transfer the openings avoiding fluid leakage between connected connectors.

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 medical female connector (10) for controlling a fluid flow is disclosed, as well as a method for its manufacturing, and medical devices including such a female connector. A tubular plunger (40) and a flexible valve member (60) are inserted into a housing (20). A distal end (42) of the plunger (40) is located at a distance proximally from the distal end (22) of the housing (20). In a flow stop configuration, the flexible valve member (60) seals a flow path (44) through the tubular plunger (40). In a flow configuration, the valve member (60) is compressed by a male connector (90) and deformed by the plunger (40) to allow a fluid flow through the plunger (40). A frusto-conical female sealing surface (24) is arranged to form a seal with the male connector (90). An entrance opening (25) of the housing (20) presents a diameter equal to or larger than the maximum diameter (d1) of the female sealing surface (24).

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.

An infusion device for the passage of fluids to or from a patient via a syringe. The infusion device includes a valve assembly and a coupling apparatus. The coupling apparatus comprises a coupler, a first gland, a cannula, a second gland, and an inlet. The coupling apparatus defines a central lumen for the passage of fluids in an open configuration. The inlet may be coupled to a syringe.

Fluid connector systems including first and second valve assemblies couplable together to form a fluid pathway therethrough, and can resist fluid flow through the connector system when the valve assemblies are separated from each other, the first valve assembly including a compressible valve within a cavity and configured to surround a post forming a fluid passage, the compressible valve can resist fluid flow through the post in a first position and to reduce the resistance to fluid flow through the post in a second position, and the second valve assembly including a valve plug positioned within a bore and configured to obstruct a fluid passage, such that when the valve assemblies are coupled together the compressible valve is moved toward the second position and the post extends through the compressible valve and the valve plug to form the fluid pathway through the connector system.

A connector for forming a fluid flow pathway by connection with a reciprocal connector. Both the connector and reciprocal connector include a fluid flow blockage partsheathed within an axially compressible sheath part. A first bearing surface receives an urging force to retract the blockage part axially along the sheath part. A terminal end of the sheath part defines a second bearing surface containing a fluid flow opening with the fluid flow blockage part retractably therein. A first chassis part includes a first catch part. A second chassis part includes a second catch part and a third bearing surface spaced from the second catch part along the second chassis part. Retraction of the blockage part forms a fluid flow pathway not sooner than immediately when the openings meet to allow fluid transfer the openings avoiding fluid leakage between connected connectors.

A coupling system for a closed fluid transfer system includes at least one coupling member and at least one counter coupling member. The coupling member includes a coupling member sealing member that has at least one reversibly openable and closable coupling member sealing member opening in the region of the covering of the fluid conduit opening facing the coupling side At least one activation member engages the coupling member sealing member. The counter coupling member includes a counter coupling member sealing member. The counter coupling member sealing member includes a reversibly openable and closable counter coupling member sealing member opening in the region of the counter coupling side end face, and is configured to move the activation member to a position with minimum distance to the fluid connection upon coupling. The counter coupling member sealing member opening is opened in a connected state by the coupling member sealing member.

A needleless connector may include a housing comprising a central longitudinal axis, a body portion, and a base portion. The body portion may include an inner surface forming an internal cavity, and a first port forming a first fluid passage to the internal cavity. The base portion may include a top section including a valve seal support, and a bottom section including a second port forming a second fluid passage to the internal cavity. The needleless connector may further include an asymmetrically-shaped valve disposed in the internal cavity. The asymmetrically-shaped valve may include a head portion, a valve body portion extending distally from the head portion, and a wall having an inner surface forming a valve cavity. The valve may be coupled with the housing such that the inner surface of the valve at the valve body portion is seated and radially supported on the valve seal support.

A connector assembly for connecting medical lines (3, 4) to each other comprises a first connector (1) having an insertion shaft (12), and a second connector (2) having an insertion opening (22). For connecting the first connector (1) and the second connector (2) to each other, the insertion shaft (12) of the first connector (1) is insertable along an insertion direction (I) into the insertion opening (22) of the second connector (2). For releasing the first connector (1) and the second connector (2) from each other, the insertion shaft (12) of the first connector (1) is removable from the insertion opening (22) of the second connector (2). The first connector (1) comprises an elastic member (14) arranged on the insertion shaft (12), wherein the elastic member (14) comprises an abutment portion (141) abutting a surface (121) of the insertion shaft (12) and being displaceable along the insertion direction (I) relative to the surface (121) of the insertion shaft (12) upon releasing the first connector (1) and the second connector (2) from each other. In this way a connector assembly is provided which, in an easy way, allows for the cleaning of at least the first connector.