A saliva suction structure comprises an inner suction head with an inner fixing hole, a shrunk portion with a suction hole communicating with the inner fixing hole, and an outer hood covering the inner suction head and having an accommodation space. An upper end of the inner suction head is located at a lower end of the outer hood to form a spacing, a lower end of the outer hood is connected to a sleeve hole around the lower section of the inner suction head, two opposite sides of the outer hood are provided with a side hole separately, the top of the side hole is concavely formed at the top of the outer hood, the inner side of the inner fixing hole is provided with at least one convex buckle, and the inner fixing hole is provided with a tube body.

A saliva suction structure comprises an inner suction head with an inner fixing hole, a shrunk portion with a suction hole communicating with the inner fixing hole, and an outer hood covering the inner suction head and having an accommodation space. An upper end of the inner suction head is located at a lower end of the outer hood to form a spacing, a lower end of the outer hood is connected to a sleeve hole around the lower section of the inner suction head, two opposite sides of the outer hood are provided with a side hole separately, the top of the side hole is concavely formed at the top of the outer hood, the inner side of the inner fixing hole is provided with at least one convex buckle, and the inner fixing hole is provided with a tube body.

A suction member for a high-volume evacuator (HVE) suction tool used in dental procedures. The suction member has a connection portion at a proximal end, a tubular portion connected to the connection portion, and a suction tip connected to the tubular portion at a distal end. The suction tip includes outwardly flared lobes and open-ended peripheral vent openings alternating about its circumference. The distal ends of the lobes are generally aligned in an oblique distal tangent plane inclined relative to a longitudinal axis of the tubular portion. The vent openings are spaced closer together towards a front side of the suction member, and the lobes include a widest and most flared rear lobe that is useful for soft tissue retraction.

The present invention provides detachable canisters for use with dental amalgam recycling systems, useful for recycling particles drawn from dental liquid effluent, for example, using a dental amalgam recycling apparatus using an air-water separation tank.

Methods, apparatus, and systems for reducing transmission of aerosol droplets in a medical or dental procedure are described. In one example aspect, a protective shield system comprises a base plate with a first cover and a second cover. The first cover and the second cover are configured to form at least part of a pipe system when coupled together. The pipe system includes two ducts and an interface configured to be connected to a vacuum suction system. The protective shield system includes two suction tubes removably coupled to the two ducts of the pipe system and a shield having at least one transparent section. The shield configured to be removably coupled to the base plate so as to allow attachment of the shield to the base plate prior to the medical or dental procedure and removal of the shield from the base plate after the medical or dental procedure.

Methods, apparatus, and systems for reducing transmission of aerosol droplets in a medical or dental procedure are described. In one example aspect, a protective shield system comprises a base plate with a first cover and a second cover. The first cover and the second cover are configured to form at least part of a pipe system when coupled together. The pipe system includes two ducts and an interface configured to be connected to a vacuum suction system. The protective shield system includes two suction tubes removably coupled to the two ducts of the pipe system and a shield having at least one transparent section. The shield configured to be removably coupled to the base plate so as to allow attachment of the shield to the base plate prior to the medical or dental procedure and removal of the shield from the base plate after the medical or dental procedure.

A suction handpiece for a dental treatment unit has a negative pressure connection which can be connected with a negative pressure source of the treatment unit. A saliva connection of the suction unit can be connected with a saliva suction cannula and an atomized spray connection that can be connected with an atomized spray suction cannula. A branched flow path connects the negative pressure connection with both the saliva connection and the atomized spray connection and includes a branching section on which a negative pressure channel ending on the negative pressure connection divides into a saliva channel ending on the saliva connection and an atomized spray channel ending on the atomized spray connection. The atomized spray channel at its narrowest point has a first cross sectional area which is at least twice as large as a second cross sectional area at the narrowest point of the saliva channel.