Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1995-11-01
1998-01-20
Lucchesi, Nicholas D.
Dentistry
Apparatus
Having intra-oral dispensing means
A61G 1702
Patent
active
057095450
ABSTRACT:
A filter and one-way valve for protecting a dental patient from contamination by bacteria that may be picked up by water flowing through a supply line and to prevent cross contamination of patients from the reflux of fluid from inside a patient's mouth. Several different embodiments of the invention are disclosed, including a filter/one-way valve (38) that combines a filter (42) with a one-way valve (46) in an integral assembly. This assembly is installed in a water line (34) supplying water to an air/water syringe (20), or other dental instrument, such as a dental hand piece (160), or an ultrasonic scalar. Alternatively, a separate filter is installed in the water (and/or air) line upstream of the dental instrument, and a one-way valve (140) is installed between the head of the dental instrument and a tip through which water is injected into the mouth of a patient. Furthermore, an adapter(170) that couples to a bypass circuit in which the filter/one-way valve is installed enables the benefits of the present invention to be achieved with respect to the high-speed hand piece without cutting into a line (188) through which water and other fluids are supplied to the hand piece.
REFERENCES:
patent: 3476144 (1969-11-01), Krantz
patent: 4026025 (1977-05-01), Hunt
patent: 4342315 (1982-08-01), Jackson
patent: 4797098 (1989-01-01), Kawata
patent: 4818258 (1989-04-01), Vann, III
patent: 4950159 (1990-08-01), Hansen
patent: 5049071 (1991-09-01), Davis et al.
patent: 5076787 (1991-12-01), Overmyer
patent: 5192206 (1993-03-01), Davis et al.
patent: 5204004 (1993-04-01), Johnston et al.
patent: 5370534 (1994-12-01), Wolf et al.
patent: 5464397 (1995-11-01), Powers, Jr.
patent: 5474451 (1995-12-01), Dalrymple et al.
NSK America Corporation Advertisement for "Clean Head System and Non-Retraction Valve, headed Good News Toward A Healthier Environment for Both Dental Care Providers and Receivers," 1 page.
Johnston Anna M.
Johnston Simon E.
Williams Jeffrey F.
Anderson Ronald M.
Lucchesi Nicholas D.
SciTech Dental, Inc.
LandOfFree
Method and apparatus for protecting against cross contamination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for protecting against cross contamination , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for protecting against cross contamination will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-721371