A check valve including an elastomeric valve element having a dome-shaped configuration that seals in its at-rest position occluding fluid flow in both directions. The dome-shaped elastomeric valve element is constructed in such a way to be deflectable, such as being activated by the external device such as a male luer whereupon the valve is cracked open to become a two-way valve allowing flow in both directions. The valve element may also be cracked open by sufficient fluid pressure in its inlet. The valve element is self-aligning. The dome-shaped of the valve element includes cut-outs for additional fluid flow, thereby streamlining flow while reducing the potential for air entrapment. The underside of the dome-shaped valve element also includes a thickened concave undersurface and thickened support legs to significantly increase the resistance to high backpressures, while also minimizing potential air entrapment.

Spray dispenser for nasal drugs includes a non-pressurized bottle for storing medical fluids in particular of drugs and other sterile fluids, a mounting body mounted to the top of the bottle and an actuating body, wherein the bottle, the mounting body and the actuating body are aligned along a longitudinal axis, and wherein the actuating body is slideably attached to the mounting body along the longitudinal axis and movable between an actuating position and a non-actuating position, wherein the spray dispenser includes an applicator nozzle and an actuating section for moving the actuating body into the actuating position, characterized in that the applicator nozzle has a nozzle axis which is inclined with respect to the longitudinal axis, the applicator nozzle facing away from the actuating section.

A bidirectional valve for medical use or the like provides different threshold opening pressures in different directions using a valve seat and flapper construction providing improved characterization in operation in contrast to cross-slit valves often used for bidirectional operation. A valve disk supported in a central annular region provides movable portions engaging in valve seats at a peripheral region and a central region.

Methods and devices for accurately pumping small quantities of liquid to a patient with a broad range of flow and low cost.

A needleless connector module comprises: a sleeve tube, an elastic valve, a flow guiding unit and an extension unit. The elastic valve sleeves a guiding tube of the flow guiding unit. A hollow shoulder portion of the elastic valve abuts a slanted retaining wall of the sleeve tube. Under a first usage condition, the hollow head portion of the elastic valve encloses the guiding tube narrow portion, hiding the first guiding opening in the airtight seam. Under a second usage condition, an injection tube presses the top face of the elastic valve, a hollow head portion of the elastic valve presses downward, driving the valve inner wall to abut a waist platform formed on the guiding tube, such that the first guiding opening is exposed outside the airtight seam, and such that the first guiding opening is connected to an injection opening of the injection tube.

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 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.

An auto-injector may include a container capable of comprising a medicament; a shuttle coupled to the container and on a horizontal path with a first state and a second state; an energy source configured to release energy to translate the container and to translate the shuttle, preferably the energy source is pressurized fluid from a can; an impediment preventing horizontal movement of the shuttle before activation of the auto-injector; and a needle having a first end configured to extend out of the auto-injector, and a second end configured to extend into the container, wherein the second end of the needle and the container are not in fluid communication with one another before activation of the auto-injector.

The present invention relates to a medical functional device (900) with a valve seat (803) for a check valve (1), wherein the check valve (1) is embodied such that it takes, in addition to a first position which is suitable for gas sterilization, a second, functional position, by means of applying force onto a section of the check valve (1) and/or by means of moving or shifting the section, in which the check valve adopts a check or non-return function, wherein the check valve (1) is embodied such that it remains in the second position after release or shortfall of the force and/or the moving effect following an accomplished transfer into the second position.

Methods and devices for accurately pumping small quantities of liquid to a patient with a broad range of flow and low cost.