A sterilization adaptor includes a check valve unit, a main body, and a vent valve unit. The check valve unit is disposed in the vent valve unit. The check valve unit includes a fluid passage. The vent valve unit includes a communication path. The vent valve unit includes a vent valve, a vent valve holding member, a rotation prevention member, and an elastic member. The main body includes an engaging portion configured to be engageable with a medical device by a biasing force of the elastic member.

An infusion pump is disclosed. The infusion pump comprises a chamber having a distal end and a proximal end, and a longitudinal axis between the proximal end and the distal end. A piston is arranged for reciprocating movement within the chamber and along the longitudinal axis. At least one outlet is arranged from the chamber and may comprise an outlet valve. At least one inlet is provided into the chamber. The outlet and the inlet are axially spaced apart along the longitudinal axis of the chamber. A method for operating the pump is also provided.

A connector-with-integrated-check-valve for minimizing microbial migration to catheter-tubing is formed from three parts: a connector-for-catheter-tubing that is hollow and with an internal valve seat; an elastomer gate (sometimes with disc and stem); and a connector-for-extension-tubing that is hollow and with support-surfaces. When one end of the connector-for-catheter-tubing is attached to one end of the connector-for-extension-tubing, a pocket is formed where the seat is disposed opposite and facing the support-surfaces; the gate is disposed within this pocket; such that when the gate contacts this seat due to urine backflow (reflux), the connector-with-integrated-check-valve is closed to such urine backflow; and where a remaining end of the connector-for-catheter-tubing is attachable to catheter-tubing; and where a remaining end of the connector-for-extension-tubing is attachable to the extension-tubing, such that there is a continuous urine flow path from the catheter-tubing, to the connector-with-integrated-check-valve when open, and to the extension-tubing.

An embodiment includes a valve comprising: a valve channel that couples a valve input to a valve output; a one-way valve included within the channel; a filter; a first pressure relief port, wherein the first pressure relief port is configured to relieve negative pressure when pressure at the valve output is less than pressure at the valve input; a second pressure relief port, wherein the second pressure relief port is configured to relieve positive pressure when pressure at the valve output is greater than pressure at the valve input; wherein the one-way valve includes a monolithic portion that simultaneously seals the channel, the first pressure relief port, and the second pressure relief port; wherein the filter covers the first pressure relief port.

A flow control device (40) for controlling the flow of a pressurized fluent substance is disclosed. The device (40) includes a housing (44, 48, 52) having an inlet portion (44) for receiving the fluent substance, an outlet portion (48) for discharging the fluent substance, and a platform (52). The device (40) further has a valve (56) located within the housing (44, 48, 52). The valve (56) is located between the platform (52) and the outlet portion (48). The valve (56) has a flexible, resilient valve head portion (160) that has confronting, openable portions (212, 216) movable from a closed configuration to an open configuration when the valve head portion (160) is subjected to a pressure differential acting across the valve head portion (160).

A check valve assembly is configured to couple to a first container that retains a first fluid and a second container that retains a second fluid. The check valve includes a fluid inlet housing including a first fluid inlet port defining a first fluid inlet channel, and a second fluid inlet port defining a second fluid inlet channel. A fluid outlet housing is coupled to the fluid inlet housing. The fluid outlet housing includes a fluid outlet port defining a fluid outlet channel. A first diaphragm is seated over the first fluid inlet channel. At least a portion of the first diaphragm is configured to unseat over the first fluid inlet channel to allow the first fluid to pass from the first fluid inlet channel into the fluid outlet channel. A second diaphragm is seated over the second fluid inlet channel. At least a portion of the second diaphragm is configured to unseat over the first fluid inlet channel to allow the second fluid to pass from the second fluid inlet channel into the fluid outlet channel.

A male reflux valve comprising a distal body portion and a proximal body portion, the proximal body portion having a male connection for connection to a female connection of an access device, a valve element operatively positioned within the distal body portion, a core operatively positioned within the distal body portion to retain the valve element into sealing engagement with the distal body portion and an actuator reciprocably retained within a generally circular cylindrical longitudinal bore of the proximal body portion in engagement with the valve element to open the valve element when engaged by the female connection of the access device.

A valve is disclosed, the valve comprising a housing having an first opening and a second opening, and an elastomeric member positioned in the housing, the elastomeric member comprising a thickness, a continuous peripheral wall projecting from the thickness, and a slit extending through the thickness, a continuous portion of the peripheral wall creating a continuous sealable contact with the housing and partitioning the housing into an upper section and a lower section, the elastomeric member configured such that upon creating a pressure differential between the upper section and the lower section of the housing causes either: (i) the peripheral wall to deflect from the housing permitting fluid flow around the elastomeric member; or (ii) the slit to open permitting fluid flow through the elastomeric member. Methods using the valve are also disclosed.

A connector-with-integrated-check-valve for minimizing microbial migration to catheter-tubing is formed from three parts: a connector-for-catheter-tubing that is hollow and with an internal valve seat; an elastomer disc shaped gate; and a connector-for-extension-tubing that is hollow and with support-surfaces. When one end of the connector-for-catheter-tubing is attached to one end of the connector-for-extension-tubing, a pocket is formed where the seat is disposed opposite and facing the support-surfaces; the gate is disposed within this pocket; such that when the gate contacts this seat due to urine backflow (reflux), the connector-with-integrated-check-valve is closed to such urine backflow; and where a remaining end of the connector-for-catheter-tubing is attachable to catheter-tubing; and where a remaining end of the connector-for-extension-tubing is attachable to the extension-tubing, such that there is a continuous urine flow path from the catheter-tubing, to the connector-with-integrated-check-valve when open, and to the extension-tubing.

A check valve for use in a fluid pathway. The check valve may have a diaphragm and a plurality of supports extending from the diaphragm. The check valve and supports have a line of symmetry, and deformation of the check valve as it moves from a closed position to an opened position can be generally along the line of symmetry.