An applicator is proposed comprising an outer sleeve having a cylindrical inner surface and a receiving space for a flowable substance to be applied and an inner sleeve which can be displaced in the outer sleeve and in which a frangible ampule containing the flowable substance is disposed and which has an opening connecting an interior of the inner sleeve to the receiving space of the outer sleeve and an activation means upon whose activation the ampule breaks.

An applicator for on demand incremental dispensing of dental compounds from interchangeable prefilled cartridges. A hand held applicator support body with a threaded drive rod, selectively advanced by a trigger activated indexing lever assembly for advancing engagement within the medication cartridge. A release and positional indicator allows for drive rod engagement and resetting therewithin.

Described are metering dispensers having a body configured to hold a flowable composition in a chamber, a drive screw coupled to the body, and a plunger threadingly coupled to the drive screw. The plunger includes at least two annular lips that form a fluid seal with the chamber as the plunger travels along the drive screw through the chamber. A base is rotationally coupled to the body with a cam that contacts at least one tab extending externally from the body so that the tab enters at least one low point on the cam by traveling over a trailing edge of the low point, and the trailing edge then prevents the tab from exiting the low point in the direction of the trailing edge.

A device comprising a housing including a palm portion, a sheath portion extending from one end of the palm portion, and a slot comprising an adjustable platform capable of receiving a syringe and a needle connected to the syringe with the needle resting in the sheath portion. A trigger mechanism is connected to the adjustable platform. Adjustment of the trigger mechanism in a first direction moves the platform along the slot toward the sheath portion and adjustment of the bidirectional trigger mechanism in a second direction moves the platform away from the sheath. A light element is connected to the housing and is capable of directing light along the sheath portion away from the palm portion. A power source is electrically coupled to the light element to provide electrical power to the light element. Also disclosed is a system comprising the device, as well as methods of using the device.

A new type of syringe for delivering composite material for direct application of the material in the mouth of a patient. The new type of syringe includes a threaded screw for driving a piston through the syringe in order to extrude the material from the end of the syringe. The extrusion force is thus generated in the syringe, thereby allowing for a simpler, less costly motorised driving system using a torque driving movement. The syringe also includes a localised heating arrangement at the extrusion end.

A system (30) for dispensing curable material. A lead screw (62) is rotatably fixed relative to a first control surface (60) and includes external threads (94). A locking nut (90) includes internal threads (92) threadably engaging the external threads. An engagement feature (98) of the locking nut is adapted to be selectively engaged with an actuator (120) having a second control surface (122). The threads provide for rotation of the locking nut about a translation axis when the actuator is in a disengaged position. Rotation of the locking nut permits the lead screw to move proximally along the axis and the compressed curable material to at least partially decompress within a dispensing volume. The threads further provide for distal advancement of the lead screw along the axis when the actuator is in an engaged position rotatably fixing the locking nut about the axis. Methods for operating and packaging the curable material dispensing system are also described.

Described are metering dispensers having a body configured to hold a flowable composition in a chamber, a drive screw coupled to the body, and a plunger threadingly coupled to the drive screw. The plunger includes at least two annular lips that form a fluid seal with the chamber as the plunger travels along the drive screw through the chamber. A base is rotationally coupled to the body with a cam that contacts at least one tab extending externally from the body so that the tab enters at least one low point on the cam by traveling over a trailing edge of the low point, and the trailing edge then prevents the tab from exiting the low point in the direction of the trailing edge.

The invention comprises a dispensing device having an elongated body, a sidewall which is elliptical in at least a portion of its cross-section, an open top end, and a dispensing bottom end. The device comprises a ratchet, ratchet support member, dial, telescoping members, and an elliptical plunger. The ratchet support member and dial each engage the ratchet to allow movement in certain directions and prevent movement in other directions, beyond a certain point. A first telescoping member having the smallest diameter is affixed to the ratchet. The interior diameter of a second telescoping member is larger than the exterior diameter of the first telescoping member, such that the first telescoping member is configured to nest within the interior of the second telescoping member. The first telescoping member may be extended a distance through the dispenser body via rotation of the ratchet. The plunger is affixed to the telescoping member having the largest diameter.

The mixing device of cell printing composition according to the present disclosure comprises a first syringe comprising a first container for containing first liquid, a first moving element discharging the first liquid contained in the first container; a second syringe comprising a second container for containing second liquid, a second moving element discharging the second liquid contained in the second container; a mixing container which comprises a rotating mixing unit and receives the discharged first liquid and the discharged second liquids; a power transmission unit for driving the first moving element, the second moving element and the mixing unit; a first threaded guide where the first moving element is movably connected; a second threaded guide where the second moving element is movably connected; and a rod for rotating the mixing unit.

A flow-through device includes a body, including a stem; a cap; a neck; a piston; and an applicator; and a bottle including a reservoir configured to hold a solution, wherein the piston is attached to the stem at a predetermined distance along a length of the stem away from a bottom face of the reservoir when the stem is inserted into the reservoir, forms a seal with a sidewall of the reservoir, and is configured to displace the solution filled in the reservoir into a hollow channel volume of the stem, an interior applicator volume of the applicator, and an interior cap volume of the cap, and the reservoir is filled with an overfilled volume of the solution filling into the hollow channel volume of the stem, the interior applicator volume of the applicator, and the interior cap volume of the cap.