The present invention relates to a system for flushing a medical device, comprising a multi-port valve for controlling the delivery of flushing fluids, the multi-port valve connected to a source of pressurised flushing gas; a fluid outlet for coupling flushing fluids to the medical device; and, a gas-driven pump connected to the fluid outlet, wherein, in a first configuration, the multi-port valve couples a flow of gas from the source of pressurised flushing gas to the fluid outlet, and wherein, in a second configuration, the multi-port valve couples a flow of gas from the source of pressurised flushing gas to the gas-driven pump to drive the gas-driven pump thereby to provide a flow of flushing liquid to the fluid outlet.

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.

Certain embodiments provide a surgical instrument comprising a hand-piece, an outer tube having a proximal end coupled to a distal end of the hand-piece, an inner tube housed within the outer tube and having a distal end coupled to a soft tip and a proximal end coupled to an actuator, and a valve housed inside the hand-piece and coupled to the proximal end of the actuator. Retraction of the actuator is configured to compress the valve and retract the soft tip into a distal end of the outer tube, such that the soft tip at least partially extends beyond the distal end of the outer tube when the valve is in an uncompressed state and at least partially retracts into the distal end of the outer tube when the valve is a compressed state.

A drug solution injection controller 10 includes a sub-reservoir 24 connected via a sub-line 26 to a main line 14 for performing continuous administration of a drug solution such that rapid administration of the drug solution from the sub-reservoir 24 by self-operation is enabled, and comprises: a priming flow path 46 configured to perform priming on at least one of the main line 14 and the sub-line 26; a closing mechanism 48 configured to close the priming flow path 46; and a connector holding part 84 holding a terminal connector 18 connected to the main line 14. Holding of the terminal connector 18 by the connector holding part 84 is allowed to be released due to operation of an operation switch 50 configured to activate the closing mechanism 48.

A catheter system may include a catheter assembly. The catheter assembly may include the catheter adapter, which may include a distal end, a proximal end, an inner surface forming a lumen, the lumen extending through the distal end and the proximal end, and a side port disposed between the distal end and the proximal end. The catheter assembly may include an annular valve, which may be disposed within the lumen and aligned with the side port. The annular valve may seal a fluid pathway from the side port to the lumen. The catheter assembly may include a retainer ring disposed proximal and/or proximate the annular valve within the lumen. The catheter assembly may include a catheter extending distally from the distal end of the catheter adapter.

A suction/irrigation medical device comprises a valve body having one or more conduits fluidically coupled thereto and a first channel extending through the valve body. The medical device also comprises a first valve plunger disposed along the first channel and configured to move along an axis to open and close the first channel. The first valve plunger has a first opening to permit a fluid to flow through the first channel. The medical device also comprises a second valve plunger disposed along the first channel and along a second channel to couple the second channel into the first channel when the second valve plunger is in a first position. The second valve plunger has a second opening that has at least one dimension that is greater than a corresponding dimension of the first opening of the first valve plunger.

Apparatus and methods for providing controlled pressure-flow pulses which purge a catheter system with turbulent flow flushing. Accomplishment of such controlled pressure-flow pulses is provided by a variety of inventive devices including a special plunger rod for a conventional syringe, other interactive parts for conventional syringes, an in-line catheter attachable device which automatically generates the controlled pressure-flow pulses and also single pulse, digitally operated devices.

Disclosed herein are devices and methods related to UV disinfection of a transfer catheter during peritoneal dialysis. The transfer catheter comprises a first and second end, the second end comprising a transfer valve. The transfer valve body comprises an inlet, outlet, and a flush hole. The valve core comprises a notch configured to allow fluid flow between the various flow paths. The valve core and body are positioned off axis with respect to the fluid flow path. The transfer catheter can allow for a small volume kill zone, which can minimize the amount of UV required to disinfect the catheter.

An enteral feeding valve assembly includes a housing assembly that is fluidly coupled with an upstream line and a downstream line. A diverging conduit inwardly extends from an inlet and a primary conduit inwardly extends from an outlet of the housing. The diverging conduit splits into a bypass conduit and a flow-through conduit. The flow-through conduit is fluidly coupled with the primary conduit by a check valve. A plunger valve includes one or more plunger conduits and moves in a first direction to fluidly couple the inlet with the primary conduit and the outlet via the bypass conduit and the one or more plunger conduits. The plunger valve moves in a second direction to de-couple the inlet from the primary conduit and the outlet via the bypass conduit and the one or more plunger conduits. The flow-through conduit directs the fluid to the outlet through the check valve.

Methods of reducing air within a stent graft delivery device are disclosed, utilizing various flushing techniques. A port in a manifold that includes a pusher catheter coaxially disposed about a guide wire catheter is flushed. A portion in a sheath hub that excludes a longitudinally extended outer sheath coaxially disposed about the pusher catheter is flushed with a flushing fluid and/or a blood soluble gas, such as carbon dioxide. The guide wire catheter is also flushed.