Needle assemblies and related methods having a needle hub with a needle, a catheter tube with a catheter hub and having the needle extending through the catheter tube in a ready to use position. A valve is positioned in an interior cavity of the catheter hub, the valve having sections that can deflect in a distal direction and sections that can deflect in a proximal direction to open a fluid flow path through the valve. The valve can be deflected by a multi-piece valve opener.

The invention relates to an intravenous catheter apparatus comprising: a catheter hub (12) arranged at a proximal end of a catheter tube (10), the catheter hub (12) having an inner surface (14) defining a chamber (16); a needle (20) defining an axial direction and having a needle tip (24), the needle (20) extending through the chamber (16) and the catheter tube (10) when in a ready position; a needle guard (32) slidably arranged on the needle (20) and at least partially received in the chamber (16) when the needle (20) is in the ready position, the needle guard (32) including a base portion (34) and first and second arms (36, 38) extending from the base portion (34), wherein the first arm (36) is deflected radially outwards by the needle (20) against a restoring force when the needle (20) is in the ready position whereby the needle guard (32) is brought into retaining contact with the catheter hub (12); and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.

A hemostasis valve body provides strong sealing around a medical device during insertion of the medical device into a blood vessel, low forces for tearing, and stability during insertion of the medical devices as well as during peel away. The valve body comprises a first surface, a second surface opposite the first surface, an edge, helical slits, and a pair of longitudinal cuts. The helical slits are positioned at a center of the valve body and traverse the first surface to the second surface. The helical slits provide a seal around the medical device. Each respective longitudinal cut extends from the first surface partially through the valve body to a depth short of the second surface for at least part of a length of the respective longitudinal cut. The longitudinal cuts facilitate a separation of the valve body into two parts during a peel away action.

Needle assemblies and related methods having a needle hub with a needle, a catheter tube with a catheter hub and having the needle extending through the catheter tube in a ready to use position. A valve is positioned in an interior cavity of the catheter hub, the valve having sections that can deflect in a distal direction and sections that can deflect in a proximal direction to open a fluid flow path through the valve. The valve can be deflected by a multi-piece valve opener.

A hemostasis device includes a valve, the valve being sized and configured to be disposed entirely within a handle of medical device, the valve including a rim, the rim be sized and configured to seal with a lumen of the handle of the medical device.

A system for facilitating instrument delivery through a peripheral intravenous catheter (“PIVC”) may include a catheter assembly having a catheter adapter, an extension tube extending from a side port of the catheter adapter, a septum disposed in a lumen of the catheter adapter, and a PIVC extending distally from the catheter adapter. The septum may include a first piece and a second piece and may be least partially disposed within a canister. The system may include an extension set, which may include a distal end and a proximal end. The distal end may include a distal connector and a rigid tube. The proximal end may include a proximal connector. The distal connector may be coupled to the proximal end of the catheter adapter. The rigid tube may penetrate the septum in response to the distal connector being coupled to the proximal end of the catheter adapter.

A hemostasis device includes a valve, the valve being sized and configured to be disposed entirely within a handle of medical device, the valve including a rim, the rim be sized and configured to seal with a lumen of the handle of the medical device.

A valve actuator that moves in a catheter assembly between a first position where a valve is closed and a second position where the valve is open, the valve actuator including a shaft portion at a distal end of the valve actuator that is configured to pierce the valve, a mating portion at a proximal end of the valve actuator that is configured to engage a Luer device, a diameter reduction region that connects the shaft portion and the mating portion, and a plurality of windows that extend through the valve actuator for flushing fluid, the plurality of windows being disposed in the diameter reduction region, wherein each of the plurality of windows does not extend a full length of the diameter reduction region.

A hemostasis valve body provides strong sealing around a medical device during insertion of the medical device into a blood vessel, low forces for tearing, and stability during insertion of the medical devices as well as during peel away. The valve body comprises a first surface, a second surface opposite the first surface, an edge, helical slits, and a pair of longitudinal cuts. The helical slits are positioned at a center of the valve body and traverse the first surface to the second surface. The helical slits provide a seal around the medical device. Each respective longitudinal cut extends from the first surface partially through the valve body to a depth short of the second surface for at least part of a length of the respective longitudinal cut. The longitudinal cuts facilitate a separation of the valve body into two parts during a peel away action.

A catheter assembly including a catheter hub being connectable to a device for the infusion or withdrawal of fluids; a hollow extension tube connected at its distal end to the catheter hub, the extension tube connectable at its proximal end to a device for infusing fluid into the chamber within the catheter hub; a valve assembly disposed within the chamber of the catheter hub having a first valve member and a second valve member preventing the flow of fluid through the chamber to or from the proximal end of the catheter hub. A needle guard assembly is also provided.