Sample collection apparatus and methods of sample collection are provided, for example saliva collection apparatus and methods of saliva collection. Said apparatus conveniently comprises a filter assembly and an interface for delivering material from the apparatus to an assay unit.

A strainer/filter unit for effectively collecting solid, liquid or gaseous substances at the source and the method of using the strainer/filter unit. The strainer/filter unit includes a housing, a one-way valve at one end of the housing, and a filter having a certain depth and thickness within the housing. The filter is formed from a plurality of layers of material with pores such that pores of one layer partially overlap pores of subsequent adjacent layers. Matters entering the strainer/filter unit are collected in the filter while travelling through filter via a tortuous path.

A spittoon which is used in a dental unit chair is disclosed. The spittoon includes: a main body; a spitting receptacle disposed in an upper portion of the main body; a spitting receptacle cover configured to cover the spitting receptacle; a moving unit configured to move the spitting receptacle cover, and the moving unit is configured to move the spitting receptacle cover to cover the spitting receptacle or move the spitting receptacle cover not to cover and to open the spitting receptacle.

A spittoon which is used in a dental unit chair is disclosed. The spittoon includes: a main body; a spitting receptacle disposed in an upper portion of the main body; a spitting receptacle cover configured to cover the spitting receptacle; a moving unit configured to move the spitting receptacle cover, and the moving unit is configured to move the spitting receptacle cover to cover the spitting receptacle or move the spitting receptacle cover not to cover and to open the spitting receptacle.

A dental aspiration device including an inside housing having a proximal portion and a distal portion with an interior surface; an outside housing having a proximal portion and a distal portion with an interior surface; at least one of the interior surfaces of the inside housing and the outside housing including vacuum channels; a hinge connection mechanism hingeably connecting the proximal portions of the inside housing and the outside housing; and a locking mechanism for removably attaching the distal portions of the inside housing and the outside housing to each other.

A transportable autonomous dental unit is described, mounted on a base to which side walls are associated in order to create a container of around 4 liters of volume, featuring a dental chair whose column has a compressed air tank, a complete instrument table, a compressor to fill the needs of the pneumatic peripherals and venturi suction device for compressed air, means for connection to a water supply line, a wastewater drainage duct, and a power source, offering the same operation conditions of a complete conventional dental unit.

A transportable autonomous dental unit is described, mounted on a base to which side walls are associated in order to create a container of around 4 liters of volume, featuring a dental chair whose column has a compressed air tank, a complete instrument table, a compressor to fill the needs of the pneumatic peripherals and venturi suction device for compressed air, means for connection to a water supply line, a wastewater drainage duct, and a power source, offering the same operation conditions of a complete conventional dental unit.

Disclosed are a workbench control assembly, a workbench waterway integrated system and a dental nurse workbench. The workbench control assembly includes a cleaning assembly, a spittoon, a saliva suction assembly, a sewage container, a first conveying assembly and a second conveying assembly. The spittoon is connected to the cleaning assembly and configured to receive mouth rinse wastewater, the saliva suction assembly is configured to contact oral sewage or connect to the cleaning assembly, the sewage container is connected to the spittoon and the saliva suction assembly, the first conveying assembly is connected to the cleaning assembly and configured to convey a cleaning liquid supplied by the cleaning assembly to the spittoon and the saliva suction assembly respectively, and the second conveying assembly is connected to the sewage container and configured to convey a mixed liquid conveyed to the spittoon and the saliva suction assembly to the sewage container.

Disclosed are a workbench control assembly, a workbench waterway integrated system and a dental nurse workbench. The workbench control assembly includes a cleaning assembly, a spittoon, a saliva suction assembly, a sewage container, a first conveying assembly and a second conveying assembly. The spittoon is connected to the cleaning assembly and configured to receive mouth rinse wastewater, the saliva suction assembly is configured to contact oral sewage or connect to the cleaning assembly, the sewage container is connected to the spittoon and the saliva suction assembly, the first conveying assembly is connected to the cleaning assembly and configured to convey a cleaning liquid supplied by the cleaning assembly to the spittoon and the saliva suction assembly respectively, and the second conveying assembly is connected to the sewage container and configured to convey a mixed liquid conveyed to the spittoon and the saliva suction assembly to the sewage container.

A residue-catching device for orally inserted appliances includes a flexible body having a cavity positioned adjacent a working end of the appliance to intercept residue before it reaches the handle. The device may be installed between a detachable head and handle or slipped over the head. Preferred materials include food-grade silicone. The device is adaptable to toothbrushes, flossers, irrigators, and dental tools.