Liquid discharge head comprising: liquid discharge unit, which includes discharge port, liquid retaining section configured to retain liquid to be discharged from the discharge port, and displacement section configured to discharge the liquid retained within the liquid retaining section from the discharge port; a pair of liquid storage sections, which are configured to store the liquid and are each connected to the liquid retaining section in the liquid discharge unit so that the liquid can flow; a pair of liquid feeding sections that are connected to the pair of liquid storage sections and are configured to feed the liquid between the liquid storage section and the liquid retaining section; and a pair of open and close sections that are each disposed at flow path between the liquid feeding section and the liquid storage section and are configured to open and close the flow path.

A device for storing first and second ingredient materials, mixing the ingredient materials to form an adhesive material and dispensing the adhesive material. The device comprises: a nozzle for dispensing the third material; a first container adapted to store a first ingredient material and mix the first ingredient material with a second ingredient material; a second container disposed within the first container, and moveable between a storage position in which a second ingredient material is stored in the second container and a mixing position in which the second ingredient material is moved to the first container; a mixer that longitudinally extends into the first and second containers; a handle alternatively coupled to the mixer to mix the first and second ingredient materials or to the second container to move the second container to a dispensing position to dispense the third material. During use, the first container is rotated causing the second container to move relative to the first container and the second material to flow into the first container for mixing. After mixing, the handle is uncoupled from the mixer and coupled to the second container to dispense the third material from the nozzle. Embodiments are also described herein for a method of making the device and a method of using the device.

A medical device for making foam includes a syringe having a plunger for dispensing a liquid from a liquid dispensing port, and a mixing chamber including a mixing chamber inlet, a mixing chamber outlet, a liquid flow channel extending between the mixing chamber inlet and the mixing chamber outlet, and a gas inlet channel that intersects with the liquid flow channel. The system has a gas cartridge containing the gas, a first gas conduit connected with the syringe, and a second gas conduit connected with the gas inlet channel. An actuator is coupled with the gas cartridge for releasing the gas into the first and second gas conduits. The released gas in the first gas conduit forces the plunger toward the liquid dispensing port for dispensing the liquid from the liquid dispensing port and into the liquid flow channel while the released gas in the second gas conduit flows into the gas inlet channel of the mixing chamber for mixing with the liquid in the liquid flow channel.

A method and system are used to enhance a marker material to include a plurality of air bubbles. The method of manufacturing a marker includes enhancing a marker material to include a plurality of air bubbles using at least a first EFD and a second EFD. The method may include cycling repeatedly through a transfer process between a first container and a second container. A system for enhancing a marker material includes a transfer apparatus configured to receive a marker material and a selected amount of air. The system comprises a first EFD coupled to a first end of the transfer apparatus and a second EFD coupled to a second end of the transfer apparatus.

The present invention is directed to a multi-compartment medical device for segregated storage and on demand mixing of at least two components and expression of the resulting mixture from the device. The mixing device comprises a syringe having an open end and outlet and containing a first component; and a cap with a fixed outer body and an expandable chamber contained therein, wherein said cap is removably attached to the outlet of the syringe and a cross-section of the cap is larger than a syringe cross-section and the cap is shorter than the syringe.

Provided in one implementation is a method that includes introducing a volume of raw material into a chamber of a cavitation machine. The raw material can include a mixture comprising a powder and a solvent. The powder can have a first average particle size in the raw material. The method includes applying a hydrodynamic cavitation process to the raw material to produce a product material. The powder can have a second average particle size, smaller than the first average particle size, in the product material. The method includes causing the product material to exit the cavitation chamber and drying the product material to remove the solvent. Apparatus employed to apply the method are also provided.

An extrusion system that is operable to facilitate the extrusion of a solution through manipulation of a first syringe and a second syringe. The extrusion system includes a tubing network wherein the tubing network includes a first portion coupled to a first port of an extrusion cartridge and a second portion coupled to a second portion of an extrusion cartridge. The first portion of the tubing network includes an inlet line having an inlet valve coupled therewith and a first syringe. A purge line and purge line clamp are further included in the first portion. The second portion includes a second syringe, an exit line and an exit line clamp. The extrusion system utilizes reciprocating movements of the plungers of the first syringe and second syringe to facilitate the passing of the solution through the extrusion cartridge.

Systems and methods for embolizing body lumens are provided that include a mixing component provided in a flow path between two chambers, e.g., syringes, such that one or more actuators may direct embolic material back and forth between the two chambers through the mixing component to mix the embolic material. Once mixed, the embolic material may be delivered from one of the chambers through a catheter into a patient's body to embolize a target location.

Systems for a plastic pump/actuator capable of containing and pumping organic solvents and lubricants and having a more desirable lubricity within the system. The system has at least two cylinders, with plungers therein, oppositely disposed from each other and configured to operably connect to a pump.

A therapeutic foam for the treatment of, inter alia, varicose veins comprises a sclerosing solution foamed with a physiological gas such as carbon dioxide, oxygen or a mixture thereof. The foam has a nitrogen content of less than 0.8%. It may be generated using a pressurized canister system incorporating a fine mesh of micron dimensions through which the gas and sclerosing liquid are passed to make the foam. Alternatively, the foam may be generated by passing gas and solution between two syringes through a fine mesh. Techniques are described for minimizing the amount of nitrogen in a canister or syringe based product. A technique for generating and delivering foam simultaneously using a syringe based device is also disclosed.