What is disclosed in the present invention is to provide a quantitative transfer pipette structure, wherein an anti-backflow compartment is configured in the first bulb. The dimensions and locations of the first bulb, the second bulb and the third bulb are specifically configured to aspirate and transfer a specific volume of the liquid to a container, mix the liquid with the substance in the container by pressing and releasing the specific bulbs, so as to achieve the effects of precise quantification and sufficient mixing.

A filling aid. The filling aid includes a needle housing portion including at least one tab having a starting position and a filling position, and a filling needle cradle including a filling needle, the filling needle cradle slidable connected to the needle housing portion and having a starting position and a filling position, wherein when the at least one tab on the needle housing moves from a starting position to a filling position, the filling needle cradle slides from a starting position to a filling position, and wherein when the at least one tab on the needle housing moves from a filling position to a starting position, the filling needle cradle slides from a filling position to a starting position.

A fill adapter system for an infusion pump assembly. The system includes a reusable fill adapter base, the base including a volume control mechanism to adjust an available fill volume of a reservoir of the infusion pump assembly and a pump mechanism configured to pump air into a fluid vial. The system also includes a vial adapter assembly including a first needle configured to penetrate a septum of the fluid vial for fluidly coupling the pump mechanism to the fluid vial and a second needle having a first end configured to penetrate the septum of the fluid vial and a second end configured to penetrate a septum of the reservoir of the infusion pump assembly to allow transfer of fluid from the fluid vial to the reservoir of the infusion pump assembly in response to air being pumped into the fluid vial and a needle carriage adapted to carry the first needle and the second needle, wherein the needle carriage slidably attached to the interior of the vial adapter assembly, wherein the needle carriage adapted to slide from a vial end of the vial adapter to a receptacle end of the vial adapter.

A droplet dispenser comprises a chamber (3) with a fluid inlet valve (2) and a fluid outlet valve (4). The chamber (3) is arranged such that the volume of the chamber may be varied in use to cause fluid to be alternately drawn in to the chamber (3) through the inlet valve (2) then subsequently expelled from the chamber through the outlet valve (4) to dispense a droplet. The droplet dispenser is capable of dispensing from an open reservoir and one may change the dispensed drop volume simply and easily. The droplet dispenser can also handle liquids which are normally seen as difficult to dispense, such as cyanoacrylate adhesives.

An apparatus and method of using a device for dispensing fluid comprising a flexible and collapsible container, a fluid dispenser pump connected to the flexible and collapsible fluid container configured to draw fluid from the flexible and collapsible fluid container into the fluid dispenser pump and to dispense fluid through a fluid delivery channel to an exit port upon actuation of the pump. The dispenser pump having an actuator comprising a dose delivery button, and a sensor located in the apparatus and configured to actuate the dispenser pump upon physical contact of the dose delivery button by a user.

An apparatus and method of using a device for dispensing fluid comprising a flexible and collapsible container, a fluid dispenser pump connected to the flexible and collapsible fluid container configured to draw fluid from the flexible and collapsible fluid container into the fluid dispenser pump and to dispense fluid through a fluid delivery channel to an exit port upon actuation of the pump. The dispenser pump having an actuator comprising a dose delivery button, and a sensor located in the apparatus and configured to actuate the dispenser pump upon physical contact of the dose delivery button by a user.

A filling aid. The filling aid includes a needle housing portion including at least one tab having a starting position and a filling position, and a filling needle cradle including a filling needle, the filling needle cradle slidable connected to the needle housing portion and having a starting position and a filling position, wherein when the at least one tab on the needle housing moves from a starting position to a filling position, the filling needle cradle slides from a starting position to a filling position, and wherein when the at least one tab on the needle housing moves from a filling position to a starting position, the filling needle cradle slides from a filling position to a starting position.

A wobble plate for a sequentially activated multi-diaphragm foam pump includes three or more wings, a wobble plate shaft, and an aperture located in each of the three or more wings. A first wing is configured to have a first distance from first contact surface of a first pump diaphragm. A second wing is configured to have a second distance from a first contact surface on a second pump diaphragm, and a third wing is configured to have substantially the second distance from a first contact surface on a third pump diaphragm.

A device for transferring liquids and liquid samples in certain quantities includes a first housing, a second housing, and a liquid extraction assembly. The first housing includes a first sidewall, a first top wall, an extrusion portion, and a first receiving cavity. The extrusion portion is disposed in the first receiving cavity. The second housing includes a second sidewall, a second top wall, and a second receiving cavity. The first housing is received in the second receiving cavity. The liquid extraction assembly includes a liquid extraction pipe and a liquid extraction head. By thumb or finger pressure, the first housing can be moved into the second receiving cavity to compress the extrusion portion to cause release of a sample, or released to gather a sample.

A gas-filled resilient body and uses thereof are described. The gas-filled resilient body may be used as a valve member, as a spring or as a gas-propelled dispenser.