KR20130005088U - handpiece is equipped with a light guide for medical - Google Patents

Abstract

The medical handpiece having the light guide of the present invention is characterized by the incidence portion having a predetermined circular portion through which the light irradiated from the light source forms an upper lens portion, and the light guide portion and the light guide outlet of the light guide portion having a predetermined refractive index. By concentrating the light through the refraction part and reducing the square of the handpiece by the shape of the light guide of the upper and lower narrow beams, it is possible to secure brighter illumination and a wider viewing angle compared with the conventional art.

Description

Medical handpiece with light guide {handpiece is equipped with a light guide for medical}

The present invention relates to a medical handpiece used during dental procedures, and more particularly, in the handpiece irradiated with LED illumination, a light guide is provided on the side of the handpiece to secure a wider and brighter viewing angle, thereby making it safe and convenient. It relates to a medical handpiece having a light guide that can be performed.

In general, the medical handpiece is a medical device that is performed by the operation of the ultrasonic wave output from the ultrasonic output device, it is particularly necessary to irradiate the light to the treatment site in the use environment during the procedure in the dentist, conventionally separate lighting Lighting was used to irradiate the treatment site using the device, but it was inconvenient to take separate equipment and manpower and to investigate as the intention of the operator. Therefore, in order to solve this problem, as in the Republic of Korea Patent Registration 10-1020708 to arrange the LED unit at the tip of the handpiece to irradiate the light to the part of the procedure tip, such a design, the illuminance and irradiation angle of the light to the treatment site There was a limit to the full investigation.

Republic of Korea Patent Registration No. 10-1020708

In order to solve the problem, it is required to concentrate the illumination of the LED light to the required area to prevent the light from being distributed to unnecessary places, and to reduce the range of blind spots generated by the handpiece during the procedure.

Medical handpiece with a light guide of the present invention, the body portion consisting of an upper case, a drive unit and a lower case; Lighting module; The light guide is composed of a light guide and a light guide case. The light guide is a hollow cylindrical upper-lower narrow shape, and the incident part of the upper part has a convex lens-shaped round shape. Refractive portions formed in the outer circumferential direction of the lower light guide from the inner circumference are formed to be inclined, and are pressed and coupled to the light guide case having a shape of a light-lower narrow shape. It is achieved by a handpiece having a light guide, characterized in that it is made of a material having a refractive index.

The medical handpiece including the light guide of the present invention as described above has a light guide and a light guide of an incidence portion having a predetermined circular portion where light irradiated from a light source through the light guide forms a lens portion thereon, and a light guide portion having a predetermined refractive index. The light is concentrated through the refraction of the exit of the sieve, and by reducing the square of the handpiece due to the shape of the light guide of the upper and lower narrow beams, it is possible to secure brighter illumination and a wider viewing angle compared with the related art.

1 is an exploded perspective view of a handpiece according to an embodiment of the present invention.
2 is a cross-sectional view and an explanatory view of a light guide according to an embodiment of the present invention and a cross-sectional view of a state in which the light guide is coupled to the light guide case.
3 is an explanatory diagram for explaining an incident angle and a refraction angle of incident light passing through different media.
4 is a diagram illustrating the calculation of the refraction angle according to an embodiment of the present invention
Figure 5a is an explanatory view showing a lighting angle of the handpiece according to an embodiment of the present invention.
5B is an explanatory diagram showing a lighting angle of a conventional headpiece.

In order to solve the above problems, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a medical handpiece having a light guide as an embodiment of the present invention.

Medical handpiece (A) having a light guide of the present invention, the body portion 100 including the upper case 110, the drive unit 120, the lower case 130, the illumination module 200 and the irradiation unit ( 300).

The upper case 110 has a hollow shape and is provided with a power connection unit (not shown) for supplying power to the ultrasonic driver 122 and the lighting module 200, and the driving unit 120 is the upper case 110. The tip fastening shaft which is connected to the driving fastening unit 121 and the ultrasonic driving unit 122 and the ultrasonic driving unit 122 to generate the ultrasonic vibration by the connected power source connected to the inside of the tip fastening shaft ( 123 and the tip fastening shaft 123 is provided with a tip fastening groove 124 is formed with a groove to be mounted for the treatment tip 600 of various uses.

The lower case 130 has a hollow shape through which one end of the driving unit penetrates, and a power terminal groove (not shown) and a light guide 310 into which a power terminal of the lighting module 200 is inserted are inserted and fastened to an end thereof. The light guide fastening screw part 131 to which the light guide case 350 is fastened with a screw is provided.

The lighting module 200 is made of a lighting device such as a plurality of LED lamps and the light source to the irradiation unit 300 by the power supplied fastened to the power terminal groove (not shown) provided at the tip of the lower case 130 Supply.

The irradiator 300 is formed of a transparent acrylic material, and has a light guide body having a hollow image light narrowing shape that induces the light source irradiated from the illumination module 200 to be irradiated with the intended direction and illuminance on the surgical site 700 ( 310 and an aluminum material having a shape of a light receiving narrow similar to the light guide body 310, a screw part (not shown) is provided on the inner side of the upper part so as to be fastened to the light guide body fastening screw part 131 of the lower case 130. (Not shown) an end portion (not shown) is provided in the lower portion of the lower portion of the light guide body 310 to seat the case hanger jaw 312 so that the light guide body 310 may be press-fitted, and the appearance of the light guide body 310 may be reduced. It consists of a light guide case 350 forming a.

In the present invention, the lighting module 200 includes an LED module, and the ultrasonic driving unit 122 generates power energy for the procedure by using ultrasonic waves using electrical energy, which is applied to a laser or other forms in addition to the ultrasonic waves. Is self-explanatory.

The light guide member 310 is provided at the front end of the illumination module 200 in order to guide the light generated from the illumination module 200 mounted on the handpiece A to be suitable for the purpose of the treatment. It controls the angle and illuminance of the light.

In general, when the light irradiated from the light source enters another medium through the medium through which the light passes, the irradiation direction of the light is changed by the refractive index formed by the unique refractive index and the incident angle of each medium. The principle can be explained by Snell's law.

That is, as shown in FIG. 3, in the two media A and B having refractive indices n1 and n2, when the light passes from the medium A to the medium B, the light is perpendicular to the passing point of the interface between the two media where the light is refracted. Drawing the normal forms the angle of incidence (i) and the angle of refraction (r) around the normal, and there is a relationship of n1 * sin (i) = n2 * sin (r) between them, and from this relationship the refractive index from the medium with the lower refractive index Light incident on this high medium has the property that its refractive angle is smaller than the angle of incidence.

The light guide 310 is designed to set the irradiation angle by using the property of forming the refractive angle according to the refractive index of the medium, as shown in Figure 1 and 2, the tip fastening axis of the transparent acrylic having a predetermined refractive index It is formed into a cylindrical shape of the image light lower narrow in the hollow state so that the 123 can be penetrated and operated, the upper part is a round-shaped incidence portion 311 having a predetermined radius to perform the function of a convex lens, the light guide When combined with the body case 350, the case hanger jaw 312 and the light incident from the incident part 311 is provided to be fixed to correspond to one side of the inner peripheral portion (not shown) of the light guide case 350; The light guide portion 313 and the lower end portion of the light guide portion 313 are formed to be inclined at a predetermined angle from the light guide lower end inner circumference 315 toward the light guide lower end circumference 316 to cooperate with a medium of air. Cause the refraction of light Stunned is composed of the inclined portion 314 to form an irradiation angle of the light.

The light guide body 310 having the above structure is formed by the light from the light source 400 passing through the air, which is the first medium, at the incident surface of the convex lens-shaped incidence portion 311 of the light guide body 310, which is the second medium. The first refraction section 320 is formed, and the refracted light passes through the light guide portion 313, forms a continuous focus on the inclined portion 314, and then reflects and refracts and disperses again while touching the third medium of air. After the second refraction section 330 having a prism effect, the refracted and dispersed light is guided by the refraction angle of the inclined portion 314, and the irradiated light forms a light concentration section 500 at a point at a predetermined distance. do.

In this case, a part of the light emitted from the light source 400 passes through the inlet of the light guide 310 and is caused by the total reflection phenomenon that occurs when the incident angle is smaller than the critical angle in the cylindrical wall of the inner circumferential surface or the conical wall of the outer circumferential surface. Light emitted from the exit of the light concentrating section 500 is formed by overlapping with the concentrated section is to provide a brighter illuminance to the treatment site.

Figure 4 shows an embodiment of the present invention, the medium of the present invention is the first medium between the illumination module 200 and the light guide 310 and the light guide 310 and the light guide (the second medium) ( It is made of air that is a third medium in the space irradiated with light passing through the 310, when the radius of the incident portion 311 roundly shaped to act as a convex lens is 5.5mm, the air of the first refraction section 320 When the refractive index is 1, the incident angle is 29.4 degrees, and the refractive index of the light guide 310 is 1.49, the refractive angle of the first refractive section 320 is 19.24 degrees, wherein the incident angle of the second refractive section 330 is 19.84 degrees, and the refractive angle is 30.37 degrees and shows that the light concentration section 500 is formed at a predetermined distance from the exit of the light guide 310. In addition, the angle of refraction of the second refraction section 330 serves as a main variable for determining the inclination of the inclined portion 314. At this time, in the above example, the length L of the light guide is 15.80 mm, preferably 15.0 mm to 18.0 mm.

 Here, the distance between the exit of the light guide 310 and the light concentration section 500 has a correlation with the incident angle, the roundness of the incident surface, the length of the light guide portion 313, the refractive index of the medium, and the first and second refractive angles. In addition, it can be seen that it also varies depending on the distance between the light source 400 and the incident part 311.

Figure 5a shows the size of the square formed by the handpiece during the procedure according to the shape of the light guide case 350 of the upper and lower strait of the present invention, the surgical tip 600 is in contact with the surgical site 700 Formed by connecting a point (c) and a straight line (a) connecting along the lower part of the handpiece, and the point (c) and the lighting of the handpiece connect the starting point (d) of the upper end irradiated from the light guide case 350 to the outside. When the angle to be referred to as the size (b) of the square by the handpiece of the present invention, the conventional hand of Figure 5b having a diameter (e`) larger than the diameter (e) of the exit of the light guide case 350 of the present invention Compared to the size of the square piece (b`) has an effect of reducing the effect of providing a more convenient treatment environment.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various modifications and changes are possible within the scope without departing from the technical spirit of the present invention. It will be apparent to those who have

The medical handpiece having the light guide of the present invention as described above can efficiently irradiate the light to a desired portion by concentrating or dispersing the light, and the hand of the light guide and the light guide case of the upper and lower fins By reducing the square of the piece compared to the prior art it is possible to produce a lighter illumination and a wider field of view than the conventional design that can be repeatedly produced can be said to be a high availability design in the medical industry.

A: Medical handpiece with light guide L: Length of light guide
DESCRIPTION OF SYMBOLS 100 Body part 110 Upper case 120 Drive part 121 Drive part fastening part 122 Ultrasonic drive part 123 Tip fastening shaft 124 Tip fastening groove 130 Lower case 131 Light guide fastening screw part
200: lighting module 300: irradiation unit
310: light guide 311: incident part
312: case hanger jaw 313: light guide part
314: inclined portion 315: light guide lower end inner circumference
316: outer periphery of light guide 320: first refraction section
330: second refractive section 350: light guide case
400: light source 500: light concentration section 600: procedure tip 700: treatment site

Claims (9)

In the medical handpiece (A) having an illumination module,
The handpiece (A) is the body portion consisting of the upper case 110, the drive unit 120 and the lower case 130 and 100; Lighting module 200; Medical handpiece with a light guide, characterized in that it comprises a light guide (310) and a light guide portion 300 consisting of a light guide case (350).
The method of claim 1,
The light guide body 310 is a medical handpiece having a light guide body, characterized in that the cylindrical shape of the upper and lower straits of the hollow.
The method of claim 1,
The light guide body 310 is a medical handpiece having a light guide, characterized in that the incidence portion 311 of the upper portion has a convex lens-shaped round shape.
The method of claim 1,
The light guide body 310 is a medical handpiece with a light guide, characterized in that the inclined portion 314 formed in the direction of the light guide lower end circumference 316 from the lower guide inner circumference 315.
The method of claim 1,
The light guide body 310 is a medical handpiece having a light guide body, characterized in that is coupled to the light guide case 350 having a shape of the upper light lower narrow (上 廣 下 狹) shape.
The method according to claim 5,
The light guide case 350 is a medical handpiece with a light guide, characterized in that made of a material that blocks the light.
The method of claim 1,
The light guide body 310 is a handpiece with a light guide, characterized in that made of a transparent light-transmitting material having a refractive index larger than the refractive index of the air.
The method of claim 1,
The light guide body 310 is a light guide body characterized in that the distance between the light source 400 and the light guide 310 is adjusted by the forward and backward movement of the screws provided in the light guide case 350 and the light guide fastening screw unit 131. Handpiece with.
The method of claim 1,
The length L of the light guide 310 is a handpiece having a light guide, characterized in that 15.0mm ~ 18.0mm.

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