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Systems and method for protection of optical system of laser-based apparatus

a technology of laser-based apparatus and optical system, which is applied in the field of dental laser hand pieces, can solve the problems of blown away debris attached to the components achieve the effect of avoiding or reducing contamination of the optical subsystem

Inactive Publication Date: 2015-06-04
CONVERGENT DENTAL INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes systems and methods to prevent debris from contaminating the optical components of a laser-based treatment system. This is achieved by creating a fluid flow within the treatment hand piece to remove any debris that may reach the optical components. The fluid flow prevents any debris from attaching to the optical components and allows any debris that is attached to be blown away, reducing the need for cleaning and replacement of the components. The "technical effect" is to enhance the efficiency and effectiveness of the laser treatment system by preventing contamination and maintaining the reflectivity of the optical components.

Problems solved by technology

Alternatively, or in addition, the fluid flow can cause any debris attached to the components of the optical subsystem to be blown away.

Method used

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  • Systems and method for protection of optical system of laser-based apparatus
  • Systems and method for protection of optical system of laser-based apparatus
  • Systems and method for protection of optical system of laser-based apparatus

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Embodiment Construction

[0018]With reference to FIG. 2, a fluid supply subsystem 20 includes one or more conduits, such as tubes 22, and one or more nozzles 24. For example, the fluid supply subsystem 20 can provide a positive pressure within the hand piece 10, creating a high pressure cavity 26 therein. Due to a high pressure in the cavity 26, fluid (e.g., air) may flow substantially continuously within the hand piece 10 and out of the orifice 14. The fluid flow can impart forces opposing any contaminants ejected into the hand piece 10 through the orifice 14, or otherwise directed toward the reflector (e.g., a turning mirror) 12. The fluid flow out of the orifice is generally a function of fluid pressure and size of the orifice. For an exemplary orifice that is about 2.5 mm in diameter, a fluid pressure in the cavity 26 in a range from about 10 psi up to about 100 psi can significantly minimize the amount of debris attaching and / or remaining attached to the reflector 12. For example, without the fluid pre...

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Abstract

In an apparatus for directing a laser beam to a dental treatment area, where the apparatus includes a hand piece having an optical subsystem including a turning mirror for directing a laser beam to a treatment area via an orifice of the hand piece, a fluid supply subsystem creates a fluid flow within the hand piece proximate the turning mirror so as to mitigate contamination thereof.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims benefit of priority to U.S. Provisional Patent Application No. 61 / 909,896, entitled “Dental Laser with Optical System Protection,” filed on Nov. 27, 2013, the contents of which are incorporated herein by reference in their entirety.FIELD OF THE INVENTION[0002]The present disclosure generally relates to a dental laser hand piece for use with a dental laser ablation system and, in particular, to systems for cleansing optical components located in the hand piece.BACKGROUND OF THE INVENTION[0003]FIG. 1 shows a cross-sectional view of a hand piece 10, used for dental laser treatment, such as that described in U.S. Patent Application Publication No. 2013 / 0059264 entitled Laser Based Computer Controlled Dental Preparation System, the contents of which are incorporated herein by reference in their entirety. The hand piece 10 includes an optical subsystem that includes a reflector 12, and the hand piece 10 has an orifice 14...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61C1/00A61C19/00
CPCA61C1/0084A61C1/0046A61C19/002A61B2018/0097A61B2018/20359A61C1/0061
Inventor DRESSER, CHARLES H.MONTY, NATHAN P.
Owner CONVERGENT DENTAL INC
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