JP2005085652A - Lighting system for medical care - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein, in a conventional lamp having a lateral filament, the shape and size of a filament image captured by the direction of a mirror with respect to the filament are changed, whereby the direction allowing the maximum image of the filament to be captured is limited and the degree of freedom of design is reduced, a lamp having large output needs to be used, and illuminance and color temperature of an irradiation surface can not be improved unless a mirror having a large slant face is used. <P>SOLUTION: This lighting system for medical care is so shaped that, by forming the filament 43a of the lamp 43 into a vertical shape, and by capturing much of luminous flux from the vertical filament by the reflecting surface of the mirror 41, illuminance and color temperature can be improved without increasing the output of the lamp nor the aperture of the mirror, and an irradiation pattern can be formed into a rectangular shape. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a medical lighting apparatus having a surgical light effect suitable for illuminating a patient's mouth in medical treatment, particularly in dental treatment.

  As an illuminating device for illuminating the patient's mouth during conventional dental treatment, light from the lamp is illuminated from the mirror into a rectangular or oval shape to illuminate the patient's mouth. This prevents the light from the mirror from entering the patient's eyes.

As such an illuminating device, for example, there is a technique disclosed in Japanese Utility Model No. 10-6737 (utility model registration No. 3057178). In the technique of this application, the shape of the mirror is designed so that the filament of the lamp is arranged in the horizontal direction, and the light emitted from the horizontal filament is emitted in the above-mentioned rectangular shape or oval shape.
Utility Model Registration No. 3057178

  By the way, in the case of the transverse filament lamp as described above, the shape and size of the captured filament image changes depending on the direction of the mirror with respect to the filament, so the direction in which the maximum image of the filament can be captured is limited. The degree of freedom is reduced, and it is necessary to use a lamp with a large output, and unless the mirror with a large reflecting surface is used, the illuminance and color temperature of the irradiated surface cannot be improved. there were.

  The present invention is intended to solve the above-mentioned problems, and the object of the present invention is to make an optical system using a vertical filament in a lamp and capture the maximum image of the filament from every direction of the mirror from every direction of the mirror. By doing so, it is possible to improve the color temperature while maintaining the illuminance on the irradiated surface by increasing the captured luminous flux even if the lamp output is the same as the conventional lamp and the reflection area of the mirror is reduced. To provide a medical lighting device that can be used.

  The medical lighting device according to the present invention achieves the above-mentioned object, and the means of claim 1 is a lamp holder that protrudes and is fixed in the center of a mirror formed in a substantially bowl shape. The lamp holder is mounted with a lamp such as a halogen lamp, and the light from the lamp is reflected forward by the mirror and radiated through the mirror cover disposed in front of the mirror. In the treatment lighting apparatus, the lamp filament is made vertical and the reflecting surface of the mirror captures more light flux from the vertical filament, thereby increasing the output of the lamp and increasing the illuminance without increasing the diameter of the mirror. The color temperature is improved, and the reflection pattern has a rectangular shape.

  According to a second aspect of the present invention, the light from the glare source of the lamp mounted on the lamp holder is not reflected by the mirror to form glare and there is no loss of necessary light flux. Thus, a lamp bottom light shielding plate having a shape for shielding light is arranged on the outer periphery of the lamp.

  The means of claim 3 diffuses the direct light emitted from the root of the vertical filament of the lamp in the above-mentioned means of claim 1, with the collar portion formed by folding the mirror cover disposed on the front surface of the mirror. Therefore, a rough surface is used.

  According to a fourth aspect of the present invention, in the above-mentioned means of the first aspect, a mirror nut for preventing direct light radiated from the base side of the vertical filament of the lamp from being radiated to the mirror is provided with the lamp holder. It is characterized by being attached to.

  As described above, the present invention makes the lamp filament vertical and captures more light flux from the vertical filament on the reflecting surface of the mirror, thereby increasing the illuminance and color without increasing the lamp output and increasing the mirror aperture. By increasing the temperature and making the irradiation pattern rectangular, the color temperature can be improved while maintaining the illuminance, improving color rendering and contributing to more accurate treatment and medical care. In addition, since the lamp output is not increased, the power consumption of the product is not increased, and the area of the mirror can be made smaller than that of the conventional product, so that it can be handled easily.

  In addition, a lamp bottom shading plate is placed on the outer periphery of the lamp, and the mirror cover's buttocks are roughened to diffuse the direct light radiated from both ends of the vertical filament of the lamp leaking from the mirror. The mirror holder is attached to the lamp holder to prevent the direct light radiated from the base side of the filament from being emitted to the mirror. It can be made into a rectangular shape, thereby having an effect such that it is possible to accurately illuminate only the affected area of the patient during treatment or medical treatment.

  The present invention improves the illuminance and the color temperature without increasing the output of the lamp and increasing the diameter of the mirror by making the lamp filament vertical and capturing more light flux from the mirror at the reflecting surface of the mirror. And the irradiation pattern can be rectangular.

Hereinafter, an embodiment of a medical lighting device (when applied to dentistry) according to the present invention will be described with reference to FIGS.
1 and 2 show a front view and a side view of the whole. 1 is, for example, an L-shaped stand that is erected from a device equipped with a device used by a spit-on ball or an assistant, and 2 is the stand. A balance arm 3 that is pivotally supported at one end at the front end of the horizontal portion of the rod 1 so as to be rotatable about a vertical axis as a fulcrum, and 3 is rotatable at the other end of the balance arm 2 with a horizontal axis as a fulcrum. As an attached yoke, the yoke 3 is composed of a yoke joint 3a pivotally supported by the balance arm 2 and a yoke body 3b formed to be rotatable with respect to the yoke joint 3a.

  The yoke body 3b is formed with a semi-arc-shaped arm 3c extending obliquely downward, and a bracket frame (not shown) is attached to the arm 3c so as to be rotatable about a horizontal axis. The lighting device 4 of the present invention is fixed to the bracket frame. A handle 4a is fixed to both the left and right sides of the lighting device 4. By operating the handle 4a, the lighting device 4 can be displaced in the horizontal direction, the vertical direction, and the left / right direction by the above-described shaft portions. Thereby, it is possible to direct the emitted light radiated | emitted from the illuminating device 4 to a patient's mouth. Reference numeral 4b denotes a bracket cover that covers the back surface of the bracket frame.

  Next, the details of the illuminating device 4 will be described with reference to FIGS. 3 to 10. The illuminating device 4 includes a mirror 41 formed in a bowl shape and lamp holder means attached to a hole 41a formed in the center of the mirror 41. 42, a halogen lamp mounted on the lamp holder 42, the filament 43a being formed along the longitudinal direction (vertical shape) of the glass tube, and the lamp holder 42a in the lamp holder means 42. The lamp bottom light shielding plate 44 and a mirror cover 45 that is detachably attached to the handle 4a and is disposed on the front surface of the mirror 41 in the attached state.

  The shape of the reflecting surface of the mirror 41 is to capture a large amount of light from the vertical filament 43a, thereby improving the illuminance and color temperature without increasing the lamp output and increasing the mirror aperture, and the irradiation surface is rectangular. It is made into the shape which can be.

  The lamp holder means 42 is fitted into the lamp holder 42a having a hole into which the lamp 43 is inserted, the mirror presser shaft 42b fitted to the outer periphery of the lamp holder 42a, and the outer periphery of the mirror presser shaft 42b. When the socket holder 42c and the lamp holder 42a are inserted into the hole 41a from the back side of the mirror 41, the socket holder 42c is fitted into the mirror holding shaft 42b from the front side of the mirror 41. And a mirror nut 42d for clamping and fixing to the mirror 41. And the illuminating device 4 is fixed by fixing to the said bracket frame using the socket holder 42c fixed to the mirror 41 (refer FIGS. 3-5).

As a means for fixing the lamp 43 to the lamp holder 42a, one end of a lamp presser spring 46 formed in a U-shape is inserted into the lamp holder 42a in a state where the lamp 43 is inserted and positioned from the back side (opening side) of the lamp holder 42a. The lamp 43 has a U-shaped curved portion of the lamp pressing spring 45 by engaging with the protruding piece 42a ₁ protruding from the holder 42a and engaging the other end with another protruding piece 42a ₂ protruding from the lamp holder 42a. Thus, the lamp holder 42a is pressed and fixed by an elastic force (see FIGS. 3 and 7).

  As described above, the lamp bottom light-shielding plate 44 is fixed to the mirror side of the lamp holder 42a, and the front shape is formed in an approximately elliptical shape, and is formed in a gentle mountain shape 44a when viewed from the side surface in the longitudinal direction of the elliptical shape. Has been. When the lamp 43 is attached to the lamp holder 42a, the position of the glare source 43b, which is a narrowed portion of the lamp 43, is arranged to face the chevron 44a (FIGS. 4 and 4). 5).

  The mirror cover 45 is formed of a disc portion 45a that is slightly curved and a flange portion 45b that is folded back from the outer periphery of the disc portion 45a toward the curved surface. The flange 45b is formed to be slightly larger than the diameter of the opening of the mirror 41 and has a rough surface, and diffuses light emitted from the filament 43a of the lamp 43 without being reflected by the mirror 41, as will be described later. ing.

Further, the opening pore 45a ₁ in the center of the disk portion 45a of the mirror cover 45 is fitted lamp cap bracket 45c from the inside, of the disk portion 45a to the female screw portion protruding surface side from the lamp cap bracket 45c A lamp outer cap 45d is screwed and fixed from the outside. A screw hole is formed in the center of the lamp cap bracket 45c, a screw 45e is screwed into the screw hole, and a lamp cap 45f is attached to the screw 45e protruding from the lamp cap bracket 45c.

Further, the flange 45b of the mirror cover 45 includes a guide protrusion 45b ₁ and a locking protrusion 45b ₂ and guide protrusions 45b at positions facing these protrusions 45b ₁ and 45b _{2. 3} and are formed. Note that the locking protrusion 45b ₁ is curved outward. The locking protrusion 45b ₁ may also be formed on the guide protrusion 45b ₃ side.

On the other hand, a guide groove 4a ₁ for guiding the guide protrusion 45b ₂ is formed inside each of the two handles 4a, and the guide groove 4a ₁ and the notch 4a ₂ are interposed through the guide groove 4a _1. A locking groove 4a ₃ having a narrow groove width is continuously formed (see FIGS. 9 and 10).

In the mirror cover 45 configured in this manner, guide protrusions 45b ₂ and 45b ₃ are inserted into the handle 4a arranged opposite to each other while rotating the mirror cover 45 into the guide groove 4a ₁ of each handle 4a. To do. When the locking protrusion 45b ₁ enters the locking groove 4a _{3 having} a narrow groove during the insertion, the locking protrusion 45b ₁ is curved. ₁ enters the notch 4a ₂ to prevent the mirror cover 45 from rotating, and the mirror cover 45 is fixed to the handle 4a.

Incidentally, To remove the mirror cover 45 from the handle 4a, the engagement projection piece 45b ₁ that enters the notch 4a _2, notch 4a indentation using a tool such as a pin from the notch portion 4a ₂ side _{Since the} mirror cover 45 can be rotated with respect to the handle 4a by being detached from _2, it can be easily removed.

  Then, by fixing the mirror cover 45 to the handle 4a, as shown in FIG. 3, the mirror cover 45 is arranged with a slight gap in the opening of the mirror 41. In this state, since the lamp cap 45f covers the top of the lamp 43, the light emitted from the lamp 43 is prevented from leaking outside. Since the distance between the lamp cap 45f and the lamp 43 can be adjusted by adjusting the screw 45e, light leaking from the lamp top to the outside can be surely prevented.

Next, the relationship between the light from the lamp 43 and the mirror 41 will be described.
First, light from the vertical filament 43 a of the lamp 43 is emitted toward the mirror 41. Here, the reflecting surface of the mirror 41 captures a large amount of light from the vertical filament 43a, thereby improving the illuminance and color temperature without increasing the output of the lamp and increasing the diameter of the mirror, and the irradiation surface has a rectangular shape. Therefore, the color temperature can be improved while maintaining the illuminance by allowing the doctor to operate the handle 4a to irradiate the rectangular reflected light on the patient's mouth. Therefore, the color rendering property is improved, and more accurate treatment and medical care can be performed.

  Further, as shown in FIGS. 3 and 4, since the angled shape 44a of the lamp bottom light shielding plate 44 is opposed to the position of the glare source 43b, which is a narrowed portion of the lamp 43, the glare source 43a Light that is not necessary for the leaked medical treatment is shielded by the chevron 44a, so that only the necessary light beam reaches the mirror 41. Therefore, the radiated light deviating from the rectangular irradiation light is not emitted, and the patient is not radiated. It does not give glare to it.

  Furthermore, as shown in FIG. 3, the filament 43 a of the lamp 43 has a vertical shape, so that light from the root of the filament 43 a is emitted outside the opening of the mirror 41. The direct light that is not reflected by the mirror 41 reaches the flange 45b of the mirror cover 45, but since the flange 45b is formed on a rough surface, the direct light from the filament 43a is diffused. Therefore, light with high illuminance is not emitted to the outside, and glare is not given to patients, doctors, and assistants.

  In the above-described embodiment, it has been described as a dental lighting device. However, in other medical treatments such as obstetrics and gynecology, urology, etc., treatment of the affected area and the work site of the doctor It can also be applied to.

It is a front view which shows the whole medical illuminating device. It is a side view same as the above. It is sectional drawing of the illuminating device part. It is the perspective view which carried out the cross section of the mirror part in the state which removed the mirror cover same as the above. It is a side view same as the above. It is a front view of a mirror. It is a rear view same as the above. It is a front view of the state which attached the mirror cover to the handle. It is sectional drawing which shows the principal part of the attachment state of a handle | steering-wheel and a mirror cover. It is the front view which showed the groove | channel where the locking protrusion and guide protrusion in the mirror cover of a handle | steering_wheel are inserted.

Explanation of symbols

41 mirror 42 lamp holder means 42a lamp holder 43 lamp 43a vertical filament 44 lamp bottom shading plate 45 mirror cover 45b collar

Claims (4)

A lamp holder that protrudes and is fixed inside the mirror is disposed at the center of the mirror formed in a substantially bowl shape, and a lamp such as a halogen lamp is mounted on the lamp holder, and light from the lamp is transmitted by the mirror. In a therapeutic illumination device that reflects forward and radiates through a mirror cover disposed on the front surface of the mirror, the filament of the lamp is made vertical and the reflective surface of the mirror is made longer than the vertical filament. By capturing a large amount of luminous flux, the illuminance and color temperature can be improved without increasing the output of the lamp and increasing the diameter of the mirror, and the irradiation pattern can be made into a rectangular shape. Treatment lighting device. A lamp bottom shading plate shaped to shield the light from the glare source of the lamp mounted on the lamp holder from being reflected by a mirror so as not to form glare and to eliminate the loss of necessary light flux. The treatment illumination device according to claim 1, wherein the treatment illumination device is arranged on an outer periphery. 2. The flange portion formed by folding a mirror cover disposed on the front surface of the mirror is a rough surface for diffusing direct light radiated from a base of a vertical filament of the lamp. Treatment lighting device. 2. The therapeutic illumination according to claim 1, wherein a mirror nut for preventing direct light radiated from the base side of the vertical filament of the lamp from being radiated to the mirror is attached to the lamp holder. apparatus.

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