KR20170125026A

KR20170125026A - Dental Handpiece

Info

Publication number: KR20170125026A
Application number: KR1020177023816A
Authority: KR
Inventors: 추후보정
Original assignee: 카오 그룹, 인코포레이티드
Priority date: 2015-02-25
Filing date: 2016-02-24
Publication date: 2017-11-13
Also published as: BR112017018293A2; CN107708600A; EP3261576A1; EP3261576A4; WO2016138117A1; JP2018509963A

Abstract

The dental handpiece includes a head portion and a turning portion. The head portion includes a turbine and a light guide arranged to direct the light beam from the head portion to a location proximate the turbine. The pivot portion includes a light emitting diode arranged to direct a light beam into the light guide and a detachable battery for supplying power to the light emitting diode.

Description

Dental Handpiece

The present invention relates to a dental handpiece. More particularly, the present invention relates to a dental handpiece comprising a light emitting diode.

This application claims priority of U.S. Provisional Patent Application No. 62 / 120,685, filed February 25, 2015, which is incorporated herein by reference.

Other features and advantages of the invention will be set forth in the description which follows, and in part will be understood from the following description or may be learned by practice of the invention. The features and advantages of the present invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the appended claims. These and other features of the invention are understood from the following description and appended claims, or may be understood by the practice of the invention as disclosed below.

BRIEF DESCRIPTION OF THE DRAWINGS In order to explain the manner in which the benefits and features of the invention are sought, the description of the invention is set forth with reference to the specific embodiments shown in the accompanying drawings. The drawings illustrate only typical embodiments of the invention and are not to be considered limiting of its scope, and the invention will be described and explained with reference to the appended drawings.

1 is an exploded view of a dental handpiece according to an embodiment of the present invention;
2 is a cross-sectional view of the dental handpiece shown in Fig.

An exploded view of a dental handpiece 10 according to an embodiment of the invention is shown in Fig. The dental handpiece (10) includes a head portion (12) and a pivot portion (14). The head portion 12 can freely rotate with respect to the pivot portion 14. [ The pivot portion 14 may be configured to attach to a prior art air and water source.

The head portion 12 of the dental handpiece 10 can include a turbine 16 at one end and a light guide exit 18 can be arranged close to the turbine 16 So that the work surface can be illuminated by the light rays emitted from the light guide outlet 18. [ The main body 20 of the head portion can be made of a material capable of withstanding autoclaves such as heat resistant polymers such as stainless steel, aluminum or polyetheretherketone (PEEK).

The pivoting portion 14 of the dental handpiece 10 has a first end arranged to direct a light beam into the light guide 24 (see FIG. 2) of the head portion 12 when engaged with the head portion, (LED) < / RTI > The second end of the pivoting portion 14 may include a coupler 26 for attaching the air and water supply to the dental handpiece 10.

The cavity 28 formed in the swivel portion 14 may be sized to accommodate the battery unit 30 therein. In addition, a plurality of electrical contacts 32 for electrically connecting with the corresponding electrical contacts located in the battery unit 30 may be arranged within the cavity 28. The cavity 28 may also include a hole 34 for receiving a corresponding protrusion in the battery unit 30 so that the battery unit 30 is connected to the orbiting portion of the dental handpiece 10 14).

As shown in Fig. 2, the battery unit 30 may include a rechargeable battery 36 in the battery unit, and an operation switch 38 for activating the battery unit 30. When the battery unit 30 is installed in the cavity 28 of the revolving portion 14, the magnets 40 arranged in the revolving portion 14 are arranged on the metal plate 42 arranged in the battery unit 30 The battery unit 30 can be held in the cavity 28 until a sufficient force is applied to the battery unit 30 to overcome the magnetic force and separate the battery unit 30 by pulling magnetically.

The control circuit 44 may be arranged between the battery 36 and the light emitting diode 22. [ The control circuit 44 may be arranged in the battery unit 30 or arranged in the pivoting portion 14 or a part of the control circuit 44 may be located in the battery unit 30 and a portion thereof may be located in the pivoting portion 14 .

The control circuit 44 may include an operation switch 38, a timer, an accelerometer, a second switch, and a capacitor. When the operating switch 38 and the second switch are closed, power is directed to the capacitor and then to the light emitting diode 22. The operation switch 38 may be closed by an operator pressing the button 46 located in the battery unit 30. [ The actuation switch 38 senses that there is no motion from the accelerometer and then remains closed for a certain period of time, after which the timer opens the actuation switch. The second switch is closed in response to the motion sensed by the accelerometer and is opened when there is no motion sensed by the accelerometer. After the actuation switch 38 and / or the second switch is open, the light emitting diode 22 will no longer receive power from the battery, but will receive power from the capacitor for a period of time until the capacitor is discharged.

Thus, after the user presses the button 46 to close the actuation switch 38, light is supplied to the light emitting diode 22 while the user is using the dental handpiece 10 and illumination is provided. After the dental handpiece 10 is lowered and does not move for a certain period of time, the light emitting diode 22 is automatically cut off and is gradually faded by the capacitor.

The end of the light guide 24 proximate to the light emitting diode 22 and the light emitting diode 22 is located at the end of the head portion 12 relative to the pivot portion 14 of the dental handpiece 10, It can be located on the rotation axis. The light emitting diode 22 emits light rays into the light guide 24 irrespective of the direction of rotation of the head portion 12 with respect to the pivot portion 14. In order to easily position the light emitting diode 22 at the rotational axis, air passing through the channel 48 located in the rotational axis within the pivoting portion 14 is radially outwardly directed toward the second Passes through the opening 50 at an intermediate position between the end portion and the light emitting diode 22 and moves into the circular cavity formed between the swivel portion 14 and the head portion 12. The air from the circular cavity is then directed to the turbine 16 through the channel in the head portion 12 located away from the axis of rotation.

The invention may be embodied in other specific forms. The above embodiments are merely illustrative in all aspects and do not limit the present invention. The scope of the invention is, therefore, defined by the appended claims rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within the scope of the claims.

10 ........ Dental handpiece,
12 ....... Head part,
14 ....... Turning part.

Claims

As a dental handpiece,
And a head portion, wherein the head portion
Turbines and
And a light guide arranged to direct the light beam from the head portion to a position proximate to the turbine,
And a pivot portion, wherein the pivot portion
A light emitting diode arranged to direct a light beam into the light guide and
And a detachable battery for supplying power to the light emitting diode.