초록 ▼

A filter system for coupling of dental handpiece is contemplated for use within a coupling system supplying air and water to a dental handpiece. The coupling system includes a swivel coupling including a series of axially and radially spaced annular couplings on an adapter, each of which supplies on

A filter system for coupling of dental handpiece is contemplated for use within a coupling system supplying air and water to a dental handpiece. The coupling system includes a swivel coupling including a series of axially and radially spaced annular couplings on an adapter, each of which supplies one of water, air supply, tool drive air supply or conveys exhaust air. The adapter permits use with standard handpieces. The filter consists of a small filter plate mounted under a cap at the proximal end of the coupling at the distal end of a chamber that receives water from the water source. Water from the water source is conveyed into the chamber, passes through the filter plate, and is conveyed through the coupling to the handpiece where it may be sprayed in the patient's mouth. A cap is threadably mounted on the coupling to close the chamber and the cap may be removed to either clean or replace the filter. The entire assembly may be autoclaved as a unit.

대표청구항 ▼

[ What is claimed is:] [1.] In a system for employing a dental handpiece the dental handpiece having a proximal end and a distal end, said proximal end carrying proximal terminations of at least two conduits, the improvement comprising an adapter--coupling--filter system, comprising;a) an adapter ha

[ What is claimed is:] [1.] In a system for employing a dental handpiece the dental handpiece having a proximal end and a distal end, said proximal end carrying proximal terminations of at least two conduits, the improvement comprising an adapter--coupling--filter system, comprising;a) an adapter having a distal end releasably attachable on said proximal end of said handpiece, a plurality of passageways therethrough, each of said conduits being coupled to one of said passageways when said adapter is attached to said handpiece, said passageways opening at a proximal end of said adapter;b) a proximal coupling releasably coupled to said adapter, said proximal coupling including a plurality of passages therethrough, each passage being coupled to one of said passageways when said coupling is coupled to said adapter;c) a flow path defined by one passage, one passageway and one conduit, said flow path being adapted to be connected to a source of water, said proximal coupling having a filter chamber including an opening to the exterior, the filter chamber within the proximal coupling fluidly connected to said one passage, and at least one filter within said filter chamber, the at least one filter being accessible for removal after a cap enclosing the opening to the exterior has been removed, wherein water flows through the at least one filter within the filter chamber from said source toward said one passageway.