The present invention relates to a valve system for an inflatable portion of an indwelling medical device and more particularly to a valve system for fluid regulation of a catheter comprising a fluid inflatable portion that undergoes pressure changes within the body during use.

A specimen collection assembly including a flow control member for adjustably altering a flow path is disclosed. In one configuration, the flow control member defines a regulation channel in fluid communication with a lumen of a cannula, wherein the flow control member is configured to adjustably alter an effective flow distance between the lumen of the cannula and an interior of an evacuated collection container. In another configuration, the flow control member is positioned to vary an effective cross-sectional area of at least one of an inlet port and an outlet port adapted to be in fluid communication with the lumen and the evacuated collection container.

A pressure relief valve for a reservoir has a housing body forming first and second subchambers in fluid communication. A first opening in a bottom surface of the housing body forms a first valve seat. At least one second opening in the bottom surface forms a second valve seat along an outer perimeter. A diaphragm member is biased against the second valve seat and is configured to deflect off of the second valve seat under a negative pressure. A sealing ball is gravitationally biased against the first valve seat and raises off the first valve seat in response to a positive pressure. A cover sheet on an upper surface of the housing body partially encloses the chamber and traps the sealing ball in the first subchamber. The cover sheet includes an aperture aligned with the second subchamber providing an ambient pressure port coupled to ambient atmosphere.

The invention relates to a valve, in particular for a device for administering a liquid medicament, with a valve body (1) which has an interior (2) for receiving a liquid (20), wherein the valve body (1) has a liquid inlet (3) and an opposite liquid outlet (4) which both open into the interior (2), wherein the interior (2) accommodates a large number of micro channels (5) which extend in connection direction (x) between the liquid inlet (3) and the liquid outlet (4). A corresponding device for administering a liquid medicament is also described.

Disclosed is a transfer device for use in reconstituting dry drugs and for diluting liquid drugs in drug containers. The transfer device includes a multi-port manifold and a connector suitable to be attached to a drug container, a first conduit to transfer a liquid entering an inlet port of the manifold through the connector and into the drug container, and a second conduit to transfer a gaseous fluid through the connector to an outlet port of the manifold. Also disclosed is a closed liquid transfer system which includes the transfer device, a tube connectable to the inlet port for transporting a liquid to the transfer device, a tube connectable to the outlet port for transporting the gaseous fluid away from the transfer device, and a gas collection container to collect the gaseous fluid in the gas transporting tube.

The present invention discloses a liquid medicine injection device that is attached to a patient's body to inject liquid medicine such as insulin at an appropriate time. A liquid medicine injection device according to the present invention includes: a case; a liquid medicine tank that is disposed in the case and where liquid medicine is received; an electro-osmosis pump that is connected with the liquid medicine tank and moves the liquid medicine; a needle assembly that receives the liquid medicine by being connected to the electro-osmosis pump and injects the received liquid medicine into a human body; and an adhesive member combined to the case and attached to the human body.

In one aspect, a valve includes an interior channel for permitting a fluid to flow through the valve and an opening to the interior channel, the opening including a circular portion and a tapered portion adjacent the circular portion, the tapered portion having a maximum width that is less than a diameter of the circular portion, wherein the valve is rotatable about a central axis of the valve to adjust a position of a cross-sectional area of the opening with respect to a cross-sectional area of an inlet fluid line positioned to deliver the fluid to the rotary valve.

A valve assembly for controlled drainage or delivery of a fluid from or to a patient including a first port (182), a second port (184), a diaphragm chamber and a diaphragm (132) dividing the diaphragm chamber into a first chamber cavity (158A) and a second chamber cavity (158B). The diaphragm being deflectable toward a first wall of the diaphragm chamber wherein the first chamber cavity contracts and the second chamber cavity expands, and oppositely toward a second wall of the diaphragm chamber wherein the second chamber cavity contracts and the first chamber cavity expands. A valve (212) is actuatable between a first actuation state that establishes fluid communication between the first port and the second chamber cavity and separately between the second port and the first chamber cavity. The valve also having a second actuation state that establishes fluid communication between the first port and the first chamber cavity, and separately between the second port and the second chamber cavity.

A hemostatic device capable of performing decompression operation of an inflatable member and a reinjection operation of a fluid into the inflatable member without requiring a dedicated instrument includes an inflatable member configured to compress a puncture site, a band and a hook-and-loop fastener that function as a securing member to secure the inflatable member to the puncture site, and an injection member to inject fluid into a lumen of the inflatable member. The injection member includes a connector portion for injecting fluid, a main body portion including a tube connecting the connector portion and the inflatable member lumen, and a control unit that controls fluid flow through a lumen of the injection member. The control unit includes a first valve member, a second valve member located closer to the inflatable member than the first valve member, and a fluid storage portion located between the first and second valve members.

A flow control device includes an upper housing, a lower housing, a chamber interposed between and defined by the upper and lower housings, and a valve member. The upper housing includes a primary inlet having an internal surface defining a cavity and a secondary inlet. The lower housing defines an outlet of the flow control device. The chamber fluidly connects the primary and secondary inlets with the outlet. A valve member is reciprocally disposed at least partially in the cavity and partially in the chamber to (i) selectively permit fluid flow in the primary inlet in a first direction when a fluid level in the chamber is below a predetermined level, and (ii) prevent fluid backflow in a second direction opposite to the first direction when the fluid level in the chamber is above the predetermined level.