An apparatus (1) for mixing a paste material with gas includes: a mixing part (2) that mixes the paste material with the gas using a piston pump (10); and a static mixer (3) that is connected to the mixing part to stir a mixture obtained by mixing the paste material with the gas in the mixing part. The static mixer includes one or a plurality of stirring sections through which the mixture passes, the stirring section has a shape that allows a flow of the mixture passing through the stirring section to be stirred. A ratio of a volume of the piston pump to a volume of at least one of the stirring sections of the static mixer is within a range from 1:0.2 to 1:5.

Problem: A mixing device is provided which can solve problems resulting from friction between a vessel and a stirrer, which can generate a circulatory flow even below the stirrer, and which allows a desired number of stirrers to be arranged at desired positions. A discharge device provided with the mixing device, and a discharge method are also provided. Solution: The mixing device includes a stirrer incorporating a magnet, a stirrer holding mechanism that specifies a position of the stirrer by exerting a magnetic force on the stirrer from the lateral side, and a rotation mechanism that rotates the stirrer holding mechanism, wherein the rotation mechanism rotates the stirrer holding mechanism, thereby rotating the stirrer. The discharge device includes the mixing device, and the discharge method is carried out using the discharge device.

A vacuum mixing system for the mixing of polymethylmethacrylate bone cement comprising at least one cartridge (4) having an evacuatable internal space (5) for the mixing of the bone cement, the internal space (5) of which comprises a cylindrical swept volume, a mixing element (12) that is arranged in the internal space (5) of the cartridge (4) such as to be mobile and can be operated from outside the vacuum mixing system in order to mix the content in the internal space (5) of the cartridge (4), and a dispensing plunger (2) having a cylindrical external circumference whose first base surface borders a base surface of the internal space (5) of the cartridge (4) and which can be or is locked to the cartridge (4) in detachable manner and which, in the detached state, is mobile in the cylindrical region of the internal space (5) of the cartridge (4).

The presently disclosed subject matter is directed to a device for dispensing a mixture of a first composition (e.g., an anesthetic) and a second composition (e.g., a diluent buffer, a second drug, or a solution). The device comprises a plunger that slidably engages with the interior of the device barrel at a first end. The second end of the device barrel includes a flexible container configured to house one or more solutions (e.g., sodium carbonate). The flexible container comprises a membrane positioned adjacent to the interior of the barrel. The flexible container can be manipulated by the user, rupturing the membrane. In this way, the first and second solutions are intermixed within the interior of the barrel, and can be administered to a patient.

The invention relates to a device and method for producing a bone cement paste (54) from a monomer liquid (4) and a cement powder (5). The device includes a cartridge (1) with a cylindrical interior chamber for mixing the parent components, whereby the interior chamber of the cartridge (1) is closed on the front side up to a delivery opening for expelling the bone cement paste (54) from the interior chamber, a delivery plunger (7) which is arranged in the interior chamber of the cartridge (1) and which is supported in a linearly movable manner in the direction of the delivery opening, the cement powder (5), which is arranged in the interior chamber of the cartridge (1) between the delivery opening and the delivery plunger (7), a monomer receptacle (2) with an interior chamber in which a monomer liquid container (3) containing the monomer liquid (4) is contained, whereby in the monomer receptacle (2), a conveying plunger (6) is arranged movable in the longitudinal direction of the monomer receptacle (2), a compressed gas connection (8), which is directly connected or connected via a compressed gas line in a pressure-tight manner with the interior chamber of the monomer receptacle (2), whereby the conveying plunger (6) is arranged between the monomer liquid container (3) and the compressed gas connection (8) or the compressed gas line in the monomer receptacle (2), and a connection (14) which connects the interior chamber of the monomer receptacle (2) and the interior chamber of the cartridge (1) which is permeable for the monomer liquid (4) but impermeable for the cement powder (5), whereby the monomer liquid container (3) is arranged between the conveying plunger (6) and the connection (14).

A mixing container 1 with a top filling opening 5, with a connection flange 9, 9.1 which projects outward in the area of the top filling opening 5 in a radial direction for connecting the mixing container 1 to the mixing head of an industrial mixing machine and with a bottom discharge 13 that can be blocked and opened comprises a mixing receptacle 3, 3.1 forming the hollow chamber 4 of the mixing container 1 and with a wall 18, 19 encompassing its hollow chamber and flexible in a radial direction and comprises a container frame 2 holding the mixing receptacle 3, 3,1 and with the connection flange 9 and the discharge 13. The container frame 2 holds the mixing receptacle 3, 3.1, in such a manner that its wall 18, 19 surrounding the hollow chamber 4 is at least partially accessible in the circumferential direction for bringing about a deformation of it in the radial direction.

Systems, apparatuses, and methods for making content liquid foamy for discharge are described herein. A dispenser for making content liquid discharge foamy by mixing air flow from an air chamber with the content liquid flow from a liquid chamber can be provided. The dispenser can comprise a mixing chamber configured to mix air and content liquid; a porous member between an air passage from the air chamber and the mixing chamber; and a liquid passage from the liquid chamber to the mixing chamber. The liquid passage can have a first liquid passage and a plurality of second liquid passages. The liquid passage can be configured such that content liquid flows from the first liquid passage to the second liquid passages to the mixing chamber. The second liquid passages can be configured to provide flow of the content liquid in at least two directions.

A bone filler mixing and delivery device includes a mixing section adapted to mix components to form bone filler. A syringe barrel is coupled to the mixing section and has an opening through which the bone filler can be dispensed. A controllable portal can be manipulated to open a flow path between the mixing section and the syringe barrel. A plunger assembly is adapted to extend telescopically in an axial direction through the syringe barrel to dispense the bone filler through the opening.

A device and a method for accurately discharging a fixed amount of a liquid, the liquid containing solid particles, in a state that the solid particles are dispersed in the liquid material. The device includes a first reservoir, a first air pressure supply pipe, a metering portion having a metering hole, a plunger moving back and forth in the metering hole, a nozzle, a switching valve having a first position and a second position, a plunger driver, and a switching valve driver. The discharge device further includes a second reservoir, a second air pressure supply pipe, a branch portion provided in an upper portion of the metering hole and having a branch flow path, and an opening/closing mechanism that establishes or cuts off communication between the second reservoir and the metering hole. A discharge method is carried out using the discharge device.

The present disclosure relates to systems and methods for mixing and injecting fluid treatment, such as cement to treat bone or hard tissue. In some embodiments, a mixing apparatus may facilitate mixing within a syringe. Additionally, the syringe may be configured to extract bone cement from a cement mixer. A syringe for mixing and injecting cement may include a detachable handle that may be detached after extracting bone cement from a mixer to facilitate coupling to a high-pressure syringe for injection.