Contra angle handpiece for dental treatment by laser beams
August 31, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3821510 Fiber optic connector with split ferrule assembly Optical fiber coupling element Mechanical optical fiber switching device Optical fibers connector Device for preventing tooth decay by laser beam irradiation and method of preventing tooth decay by use of the same Connector for coupling an optical fiber to a light source, and method of assembling same Optical fiber centering device Fiber retaining device for power laser Patent #: 4421382 InventorsAssigneeApplicationNo. 06/413262 filed on 08/31/1982US Classes:606/16, With optical fiber122/395, Sandblast385/902, NONBUNDLE FIBERSCOPE DEVICES433/215METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETHExaminersPrimary: Coven, Edward M.Attorney, Agent or FirmInternational ClassesA61C 19/06 (20060101)A61C 19/00 (20060101) A61B 18/22 (20060101) A61B 18/20 (20060101) A61C 1/00 (20060101) A61B 19/00 (20060101) Foreign Application Priority Data1981-09-04 JPAbstractA contra angle handpiece of this invention employs a laser beam transmitting glass fiber for dental treatment in such a manner that the transmission of the beam is carried out not by a reflecting mirror, but by a glass fiber centripetally held with respect to the handpiece by means of resilient grip members. As a result, the disadvantages of the prior art such as reflection factor reduction and reflection angle changes, which result from the use of a reflecting mirror in a contra angle dental handpiece, are eliminated. | |
