A primer may be used with IV catheter systems. The primer may be positioned along the tubing of an extension set such that the primer divides the IV catheter system into a downstream portion and an upstream portion. The primer may vent air from both the upstream and downstream portions to allow blood to flow up to the primer while also allowing priming solution to flow down to the primer. As a result, the catheter may be inserted into the patient's vasculature without first priming the catheter. Once the air has been vented from the upstream and downstream portions of the IV catheter system, the primer may be actuated to open a fluid pathway through the primer. With the fluid pathway opened, the priming solution may commence flowing towards the patient's vasculature thereby flushing the blood from the IV catheter system.

A flush device including: a first housing provided with a first flow path; a second housing provided with a second flow path, the second housing being coupled to the first housing; a flow control device including a protrusion and a through hole connecting the first flow path to the second flow path in fluid communication; and an elastic member provided around the base of the flow control device to seal off a space between the first and the second flow paths. The elastic member is deformed to further connect the first and second flow paths in fluid communication. The first housing has an inner periphery provided with fitting receiving portions each being fitted to each of the fitting projections of the protrusion. According to this structure, the flush device can discharge a chemical liquid at a flow rate close to a defined amount.

A catheter assembly may include a catheter adapter, which may include a body and a side port extending outwardly from the body. The body may include a distal end, a proximal end, and an inner surface extending through the distal end and the proximal end and forming a lumen. An angle of the side port with respect to a longitudinal axis of the body may be adjustable. The catheter assembly may include a catheter extending distally from the distal end of the catheter adapter. The catheter assembly may include a septum disposed within the lumen proximal to a side port pathway extending through the side port and in fluid communication with the lumen.

A valve may have a fluid inlet and a fluid outlet. The valve may include a valve stem having a lumen extending from a first opening at a proximal portion of the valve stem to a second opening at a distal end of the valve stem. A plurality of seals may be positioned relative to the valve stem. The valve stem and seals may be configured so that a fluid entering the inlet is prevented from flowing to the outlet in a first position of the valve stem and relative to the inlet and the outlet. The valve stem and the seals may be configured so that a fluid entering the inlet flows to the outlet in a second position of the valve stem relative to the inlet and the outlet, the second position being more distal than the first position relative to the inlet and the outlet.

A valve may have a fluid inlet and a fluid outlet. The valve may include a valve stem having a lumen extending from a first opening at a proximal portion of the valve stem to a second opening at a distal end of the valve stem. A plurality of seals may be positioned relative to the valve stem. The valve stem and seals may be configured so that a fluid entering the inlet is prevented from flowing to the outlet in a first position of the valve stem and relative to the inlet and the outlet. The valve stem and the seals may be configured so that a fluid entering the inlet flows to the outlet in a second position of the valve stem relative to the inlet and the outlet, the second position being more distal than the first position relative to the inlet and the outlet.

A flushing apparatus according to embodiments of the present disclosure includes: a main body configured to connect a connection pipe for guiding a hazardous medicinal liquid harmful to a human body when exposed to an ambient air and a patient connection module for injecting the hazardous medicinal liquid into a patient, the main body configured to form a first flow path for guiding the hazardous medicinal liquid from the connection pipe to the patient connection module, the main body including a flushing portion forming a second flow path connected to a predetermined connection point located between both ends of the first flow path; and a flow rate reduction part disposed at upstream side of the connection point in the first flow path and configured to reduce a flow rate of the hazardous medicinal liquid flowing through the first flow path. The present disclosure shows various embodiments of the flushing apparatus.

IV filters are described herein. An IV filter includes a filter housing, a filter media, a filter channel, a priming channel, and a disk valve. The filter housing defines an inlet and an outlet. The filter media is disposed within the filter housing. The filter channel is disposed within the filter housing. The filter channel is in fluid communication with the inlet and the filter media, and the filter media permits flow from the filter channel to the outlet and captures particulate from the flow. The priming channel is disposed within the filter housing. The priming channel is in fluid communication with the inlet and the outlet. The disk valve is coupled to the filter housing. The disk valve is moveable to direct flow from the inlet to the priming channel in a first position and to direct flow from the inlet to the filter channel in a second position.

A method for sealing and flushing a delivery member includes sealing one or more lumens and flushing air from the one or more lumens. An interventional device delivery system includes a handle assembly and a delivery member. The handle assembly includes a catheter holder with a passageway therethrough. A flush block is associated with the catheter holder and has a flush port and a flush chamber. The delivery member is associated with the handle assembly and includes a plurality of catheters. At least one of the catheters has a proximal end disposed within the passageway in the catheter holder and is in fluid communication with the flush chamber.

Systems and methods are provided for removing air from a medical device, such as a stent-graft and/or its delivery device. In an exemplary embodiment, the stent-graft or its delivery system or both are exposed to perfluorocarbon, by immersing the stent-graft or flushing the delivery device to remove air from the stent-graft. Optionally, the stent-graft and/or delivery system may be flushed multiple times, e.g., with perfluorocarbon before or after flushing with carbon dioxide, saline, a bio-inert gas, and the like. Thereafter, the stent-graft may be introduced into a patient's body and deployed at a target location, such as the site of an abdominal aortic aneurysm.

A medical valve can include a housing that includes a sidewall and defines a chamber. The medical valve can include a septum coupled to the housing. The septum can include a proximal surface and a selectively openable closure positioned within the chamber. The medical valve can further include a plurality of projections that extend away from the sidewall and are configured to contact the proximal surface of the septum to oppose movement of a restricted portion of the septum in a proximal direction such that an aspiration cracking pressure required to open the closure to permit fluid flow through the septum in the proximal direction exceeds an infusion cracking pressure required to open the closure to permit fluid flow through the septum in the distal direction.