A root canal irrigation assembly, comprising a vacuum device, a suction element having an elongate suction tip, and a sonic device having a sonic handpiece for introducing sonic vibrations into the suction element and thus causing the suction tip to vibrate, wherein the rear end of the suction element is connected to the vacuum device such that an irrigation fluid containing tissue residues and/or bacteria can be suctioned out of a root canal. The suction element comprises an internal vibrator which is held in the suction tip and projects out of the front end thereof, wherein the suction tip and the internal vibrator are interconnected at their rear ends, wherein the suction tip is resiliently formed and dimensioned such that, when the suction tip is introduced into a root canal, the suction tip sealingly closes the root canal in the region of the root canal wall.

The invention relates to a dental suction device (10) for suctioning liquids and particles from an oral cavity of a patient, with a tubular hollow base body (12) having an inner surface (14), an outer surface (16), a longitudinal axis (X-X), a connection opening (18) for a hose, and a suction opening (20). In the course of the extent of the base body (12), an objective (50) is provided, which can be connected to a monitor (40), and by means of which the image taken by the objective (50) can be displayed.

The invention relates to a dental suction device (10) for suctioning liquids and particles from an oral cavity of a patient, with a tubular hollow base body (12) having an inner surface (14), an outer surface (16), a longitudinal axis (X-X), a connection opening (18) for a hose, and a suction opening (20). In the course of the extent of the base body (12), an objective (50) is provided, which can be connected to a monitor (40), and by means of which the image taken by the objective (50) can be displayed.

A dental valve device has a valve body having a tip receiving end having a flexible tubing extending outwardly from the tip receiving end with the flexible tubing having a flexible tubing opening, a hose receiving end, a lumen formed between the flexible tubing opening and the hose receiving end, and a partial opening formed in the valve body, and a rotatable valve sealing body adapted to be inserted into the partial opening, the rotatable valve sealing body having a bore for alignment with the lumen formed between the flexible tubing opening and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening.

An evacuation dam apparatus including a frame having a top frame member, a bottom frame member, and two side frame members. A working area formed by the frame, a plurality of ports adjacent the working area, an outlet fluidly coupled with the plurality of ports. A fluid flow from at least a portion of the plurality of ports to the outlet forms a fluid flow path across the working area and at least a portion of the fluid flow path is formed within the frame.

An evacuation dam apparatus including a frame having a top frame member, a bottom frame member, and two side frame members. A working area formed by the frame, a plurality of ports adjacent the working area, an outlet fluidly coupled with the plurality of ports. A fluid flow from at least a portion of the plurality of ports to the outlet forms a fluid flow path across the working area and at least a portion of the fluid flow path is formed within the frame.

A suction valve for a dental treatment unit is connected to a downstream suction system and includes input and output conduits; a valve seat interposed therebetween; a diaphragm defining a chamber by moving between a resting position against the valve seat, blocking flow between the input and output conduits, and an active position distanced from the valve seat, allowing fluids to pass; a connecting conduit between the chamber and the output conduit and having an air entry point; and a pilot valve switched between a resting position, allowing air passage to the chamber through the connecting conduit and having a first portion, a closing point, and a second portion, and an active portion blocking air passage. A non-return valve at the entry point prevents an input flow to the connecting conduit and the upwelling of liquids from the output conduit to the pilot valve and/or the chamber.

A medical, in particular dental-medical, fan for extracting or compressing a gaseous working fluid, in particular air, comprises a compressor unit with an outer housing, which comprises an inlet opening for the working fluid and an outlet opening for the working fluid, which are fluidically connected to one another, and which defines a compressor sector and a drive sector.

A connector for a dental valve has a body having an exterior surface, a valve receiving end, a tip receiving end, a lumen formed between the valve receiving end and the tip receiving end, a front section, a center section, and a rear section.

A device for preventing suck back of oral secretions into air-driven dental handpiece when the air-driven dental handpiece is stopped. The device includes a high-pressure valve to close a high-pressure inlet port and a low-pressure valve to close a low-pressure inlet port or an exhaust air outlet. The device further includes an actuating member that closes the high-pressure valve. High pressure air of the air-driven dental handpiece can push back the high-pressure valve to open state. The low-pressure valve is coupled to the high-pressure and moves with it. A compression member interrupts the low-pressure valve and the high-pressure valve, wherein the compression member causes the low-pressure valve to close first while allowing the high-pressure valve to keep moving further to close the first path with a time delay.