A storage and mixing system for pasty two-component polymethyl methacrylate bone cements comprises a tubular cartridge having a cylindrical inner chamber, a dispensing plunger that is axially displaceable in the inner chamber of the cartridge, a partition disposed axially in the tubular cartridge, and a cartridge head which closes one end of the tubular cartridge. The cartridge head has a slot-shaped opening, wherein the partition protrudes from the inner chamber of the cartridge through the slot-shaped opening of the cartridge head, wherein the partition divides the cylindrical inner chamber of the cartridge bounded by the dispensing plunger and the cartridge head into two cavities that are spatially separated from one another. A first pasty cement component is present in the first cavity and a second pasty cement component is present in the separate second cavity, wherein the partition is removable through the slot-shaped opening of the cartridge head so that the two separate cavities are connected to one another after the partition is removed.

A device is provided for assembling components of a mixing syringe for use in a dental procedure. For this assembly, the components of interest include a beak and a mixing tip for the syringe. Specifically, the device includes a top plate formed with a hole, and a support member for the top plate that maintains the hole at a predetermined height H above a surface when the device is placed on the surface. For an assembly operation, the beak is supported on the device with a portion of the beak inserted downwardly through the hole of the top plate. This also extends a gripping member of the beak upwardly above the top plate. A grab ring of the mixing tip is then pushed against the gripping member of the beak for their engagement with each other. They are then removed together from the device and engaged with the mixing syringe.

An adapter for connecting a separated-outlet fluid cartridge to a single-inlet static mixer includes a locking portion and a connecting portion. The locking portion has at least one locking element to lockingly engage the mixer housing so as to inhibit rotation between the locking portion and the housing. The connecting portion is received within the locking portion and has first and second fluid inlet members to be coupled to respective first and second fluid outlets of the cartridge for receiving fluid from the cartridge, and a fluid outlet member is sealingly coupled to the mixer for directing fluid into the mixer. The locking portion is selectively rotatable about the connecting portion between unlocked and locked positions relative to the cartridge when the connecting portion is coupled to the cartridge. Consequently, the adapter advantageously enables dispensing with a separated-outlet fluid cartridge in combination with a single-inlet static mixer.

The method for dispensing of a liquid, viscous, pasty, powdery, or gaseous product by means of a dispensing device (100) adapted to being held and manipulated by a single hand of the user U comprises: Taking a dispensing device (100); Selecting a connection tip from a tip assortment A through G, each of them having a previously defined function; Securing the tip chosen from the tip assortment A through G inside the dispensing device (100); Selecting a mode among the different modes of the control program; Positioning the dispensing device (100) in the work zone; Activating a control button (400); Releasing the control button (400); Removing the selected tip from the dispensing device (100);

An apparatus (10) for use in dispensing adhesive (18) is provided that has a mix applicator (12) that has a receiving portion (16) and a mix applicator bore (14) through which adhesive can flow. A mix head (20) is present that has a mix head bore (26) that extends through the mix head. The mix applicator is receivable within the mix head such that the receiving portion is located within the mix head. Adhesive can be dispensed in a ribbon shape from the mix head bore at a distal tip of the mix head. A lock member is configured for extending through at least a portion of the mix head, and engages the mix applicator when the receiving portion is located within the mix head in order to retain the mix head onto the mix applicator.

A mixing and dispensing syringe comprising a plunger, barrel and dispensing cap is disclosed. The barrel and plunger are assembled to form a shallow open container for adding reactive components and manually mixing them with a stirring paddle. The relatively wide-open top of the mixing container is proximate the dispensing end of the syringe. After mixing, the dispenser cap is attached to the open end of the barrel preferably with an interference fit. The barrel diameter is preferably comparable to the barrel length. A stop may be provided to prevent relative movement of the barrel and plunger in one or more directions. Although the syringe is designed for mixing reactive hardening components in the syringe, the ease of filling the syringe through the proximal orifice makes it useful for dispensing other materials.

A dispensable substance container may include a printing substance dispensing nozzle including a first material. The dispensable substance container an elongate body, including a wall, including a second material encompassing a cavity to contain a dispensable substance, and an attachment portion to attach the elongate body to the printing substance dispensing nozzle; and a structurally compromised portion of the elongate body extending along a length of the elongate body, wherein the elongate body and the attachment portion are to be severed along the structurally compromised portion by a pushrod moveable through the cavity to expel the dispensable substance out the dispensing nozzle.

A tamper-resistant nozzle assembly for preventing the unwanted or unintentional dispensing of a material from a container. The nozzle assembly may comprise a base adapted to fit on top of a container holding the material, a mechanism located within the base and configured to provide tamper-resistant properties for the nozzle assembly, a nozzle connected to the base and having a pair of diametrically opposed tabs extending downwardly therefrom into the base, the tabs being capable of travelling radially inward when squeezed by a user, whereby, in a locked state, the mechanism limits the travel of the tabs such that (1) the nozzle cannot rotate relative to the base, and (2) the nozzle cannot be depressed to release the material from the container. When a user squeezes the tabs, the mechanism is in an unlocked state and permits the rotation of the nozzle relative to the base, to thereby enable the nozzle to be depressed relative to the base to allow it to dispense the material from the container.

A tamper-resistant nozzle assembly for preventing the unwanted or unintentional dispensing of a material from a container. The nozzle assembly may comprise a base adapted to fit on top of a container holding the material, a mechanism located within the base and configured to provide tamper-resistant properties for the nozzle assembly, a nozzle connected to the base and having a pair of diametrically opposed tabs extending downwardly therefrom into the base, the tabs being capable of travelling radially inward when squeezed by a user, whereby, in a locked state, the mechanism limits the travel of the tabs such that (1) the nozzle cannot rotate relative to the base, and (2) the nozzle cannot be depressed to release the material from the container. When a user squeezes the tabs, the mechanism is in an unlocked state and permits the rotation of the nozzle relative to the base, to thereby enable the nozzle to be depressed relative to the base to allow it to dispense the material from the container.

A material dispense tip includes an elongated hole in an elongated neck that extends from an input end of the neck to an output end of the neck. The hole at the output end of the neck has a first diameter. The output end of the neck is positioned against a die surface. A punch is inserted into the hole at the input end of the neck. An external force is applied to the neck to cause the output end of the neck to be deformed under compression by the die surface, to reduce the diameter of the hole at the output end of the neck from the first diameter to a second diameter that is less than the first diameter.