Devices and methods are provided for inhibiting mouth breathing and/or improving nasal breathing, e.g., for PAP users or users with other sleeping problems. In an exemplary embodiment, an adhesive device is provided that includes an elongate membrane comprising first and second ends and side edges extending between the first and second ends, a first surface comprising an adhesive layer. The adhesive layer may be a low tack adhesive that is adherent to skin, yet is also easily removable without leaving significant residue. Optionally, the device may include one or more valves to provide one-way flow across the membrane, one or more weakened regions in the membrane, and/or one or more tabs to facilitate removal of the membrane from over a user's mouth.

A self-flushing connector includes a housing having a cavity, a first inlet port, a second inlet port, and an outlet port. A collapsible valve is disposed within the cavity. A first flow path extends from the first inlet port to the outlet port. The first inlet port and the second inlet port are fluidly connected through a gap defined between the body of the collapsible valve and an inner wall of the housing defining the cavity. A second flow path extends from the second inlet port to the first flow path. When the collapsible valve is in a closed state, the collapsible valve fluidly disconnects the second flow path from the first flow path while allowing fluid to flow through the first flow path. When the collapsible valve is in an open state, the second flow path is fluidly connected to the first flow path.

A method for making a catheter. The method includes forming a catheter tube including an outer wall circumscribing at least one lumen and having a closed distal end, and creating a slit valve in a distal segment of the catheter tube proximal of the closed distal end. The slit valve includes a slit through the outer wall and a compliant segment designed to facilitate inward deflection of a portion of the outer wall along the slit when negative pressure is applied to the at least one lumen. The compliant segment is circumferentially spaced apart from the slit.

A syringe adapter includes a housing having a first end and a second end positioned opposite the first end, with the housing including a connector body positioned at the first end of the housing and configured to be secured to a syringe barrel, a cannula positioned within the housing, with the cannula defining a transfer opening and a valve opening, a seal arrangement positioned within the housing and movable within the housing, and an aspiration assembly comprising an aspiration housing defining an aspiration opening, a filter received by the aspiration housing, and one-way valve received by the aspiration housing, where the valve opening of the cannula is positioned within the aspiration housing, and where air is configured to flow into the filter via the aspiration opening, into the one-way valve, and into the valve opening of the cannula.

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.

Needleless connectors are described herein. A needleless connector includes a body, a valve element at least partially disposed within the body, and a base. The valve element includes a cylindrical portion having an outwardly extending flange at a distal end. The flange has a bottom surface with an outer area and an inner area. The base includes a rim having a top surface that is in contact with an outer area of the flange of the valve element, the rim defining a recess with a bottom surface separated from the top surface of the rim, and at least one support member having a top surface spaced apart from the top surface of the rim and configured to resist deformation of the flange toward the recess.

A valve (100) includes a base (110) defining a central axis (114). The valve (100) includes a post (118) connected to the base (110) and extending axially outwardly from the base (110), in the direction along the central axis (114). The valve (100) includes at least one flow aperture (122) in one or both of the base (110) and/or the post (118). The valve (100) further includes a flexible membrane (126) having an orifice (130) and having a non-dispensing configuration wherein the orifice (130) is located proximate to the post (118) to minimize communication through the valve (100). The flexible membrane (126) has a dispensing configuration wherein the orifice (130) is moved away from the post (118) for establishing communication through the valve (100).

An injection syringe for injecting a first injectable product into a body injection site of an individual, includes a first barrel containing a first product, a first syringe barrel containing the first injectable product, a first plunger displaceably mounted in the first syringe barrel; a hollow needle to be inserted into the body injection site; an adapter connected to the first syringe barrel and the needle, and a verification device to ensure that, when the first injectable product is injected, the hollow needle is not introduced into a blood vessel. The verification device includes a second syringe barrel containing a second product and connected to the adapter and a second plunger displaceably mounted in the second syringe barrel to cause a depression at the distal end of the hollow needle.

A system includes a flow regulating system. The flow regulating system may assist in ensuring a selected pressure within an inlet volume. A flow regulator may be included in a shunt assembly(10).

A check valve includes an upper housing defining an inlet of the check valve, a lower housing defining an outlet of the check valve, and a cavity interposed between and defined by the upper and lower housings for fluidly connecting the inlet and the outlet. The check valve further includes a valve member mounted in the cavity to selectively permit fluid flow in a first direction, and prevent fluid backflow in a second direction opposite to the first direction. The valve member includes a valve body and a valve stem portion extending axially through a central axis of the valve body. The valve member may further include a plurality of feet disposed about and extending longitudinally from an outer circumferential perimeter of the valve body.